 ## Full Length CLEP College Mathematics Practice Test

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60 questions Total time for this section: 90 Minutes   You can use a scientific calculator on this test.
1- What is the equation of the graph? (A) $$x^2\ +\ 6\ x\ +\ 5$$
(B) $$x^2\ +\ 2\ x\ +\ 4$$
(C) $$2\ x^2\ -\ 4\ x\ +\ 4$$
(D) $$2\ x^2\ +\ 4\ x\ +\ 2$$
2- What is the solution of the following inequality?
$$|x\ - \ 10|\ ≤\ 3$$
(A) $$x\ ≥\ 13 ∪ x\ ≤\ 7$$
(B) $$7\ ≤\ x\ ≤\ 13$$
(C) $$x \ ≥\ 13$$
(D) $$x\ ≤\ 7$$
(E) Set of real numbers
3- If $$A=$${$$2,\ 5,\ 11,\ 15$$}, $$B=$${$$1,\ 2,\ 3,\ 4,\ 5,\ 6$$}, and $$C=$${$$5,\ 7,\ 9,\ 11,\ 13$$}, then which of the following set is $$(A\ ∪\ B)∩\ C$$ ?
(A) {$$1,\ 2,\ 3,\ 4,\ 5,\ 6,\ 11,\ 15$$}
(B) {$$1,\ 2,\ 3,\ 4,\ 5,\ 6,\ 7,\ 11,\ 13,\ 15$$}
(C) {$$5,\ 11,\ 13,\ 15$$}
(D) {$$5,\ 11$$}
4- If $$4\ n\ -\ 3\ ≥\ 1$$, what is the least possible value of $$4\ n\ +\ 3$$ ?
(A) $$3$$
(B) $$4$$
(C) $$7$$
(D) $$9$$
5- A ladder leans against a wall forming a $$60^\circ$$ angle between the ground and the ladder. If the bottom of the ladder is $$30$$ feet away from the wall, how long is the ladder?
(A) $$30$$ feet
(B) $$40$$ feet
(C) $$50$$ feet
(D) $$60$$ feet
6- If $$A=$${$$1,\ 2,\ 4,\ 8,\ 16,\ 24$$} and $$B=$${$$1,\ 4,\ 12,\ 24,\ 32,\ 48$$}, how many elements are in $$A ∪ B$$ ?
(A) $$2$$
(B) $$3$$
(C) $$6$$
(D) $$9$$
7- Right triangle $$A\ B\ C$$ has two legs of lengths $$9$$ cm $$(A\ B)$$ and $$12$$ cm $$(A\ C)$$. What is the length of the third side $$(B\ C)$$?
(A) $$6$$ cm
(B) $$8$$ cm
(C) $$14$$ cm
(D) $$15$$ cm
8- If $$40\%$$ of a class are girls, and $$25\%$$ of girls play tennis, what percent of the class play tennis?
(A) $$10\%$$
(B) $$15\%$$
(C) $$20\%$$
(D) $$40\%$$
9- The area of a circle is less than $$64\ π$$. Which of the following can be the circumference of the circle?
(A) $$12\ π$$
(B) $$16\ π$$
(C) $$24\ π$$
(D) $$32\ π$$
10- Which of the following values for $$x$$ and $$y$$ satisfy the following system of equations?
\begin{cases}x\ +\ 4\ y=10\\5\ x\ +\ 10\ y=20\end{cases}
(A) $$x=3,\ y=2$$
(B) $$x=2,\ y\ -\ 3$$
(C) $$x=-\ 2,\ y=3$$
(D) $$x=3,\ y=-\ 2$$
11- If $$60\%$$ of $$A$$ is $$20\%$$ of $$B$$, then $$B$$ is what percent of $$A$$?
(A) $$3\%$$
(B) $$30\%$$
(C) $$200\%$$
(D) $$300\%$$
12- The price of a car was $$20,000$$ in $$2014$$, $$16,000$$ in $$2015$$ and $$12,800$$ in $$2016$$. What is the rate of depreciation of the price of car per year?
(A) $$15\%$$
(B) $$20\%$$
(C) $$25\%$$
(D) $$30\%$$
13- The price of a car was $$20,000$$ in $$2014$$, $$16,000$$ in $$2015$$ and $$12,800$$ in $$2016$$. What is the rate of depreciation of the price of car per year?
(A) $$81$$ cm$$^3$$
(B) $$162$$ cm$$^3$$
(C) $$243$$ cm$$^3$$
(D) $$729$$ cm$$^3$$
14- How many possible outfit combinations come from six shirts, three slacks, and five ties?
(A) $$15$$
(B) $$18$$
(C) $$30$$
(D) $$90$$
15- A bank is offering $$4.5\%$$ simple interest on a savings account. If you deposit $$8,000$$, how much interest will you earn in five years?
(A) $$360$$
(B) $$720$$
(C) $$1,800$$
(D) $$3,600$$
16- A line in the $$x\ y\ -$$plane passes through origin and has a slope of  $$\frac{1}{3}$$. Which of the following points lies on the line?
(A) $$(2,\ 1)$$
(B) $$(4,\ 1)$$
(C) $$(9,\ 3)$$
(D) $$(6,\ 3)$$
17- $$25$$ is What percent of $$20$$ ?
(A) $$20\%$$
(B) $$25\%$$
(C) $$125\%$$
(D) $$150\%$$
18- If the area of trapezoid is $$126$$ cm, what is the perimeter of the trapezoid? (A) $$12$$
(B) $$32$$
(C) $$46$$
(D) $$55$$
19- In five successive hours, a car travels $$40$$ km, $$45$$ km, $$50$$ km, $$35$$ km and $$55$$ km.
In the next five hours, it travels with an average speed of $$50$$ km per hour.
Find the total distance the car traveled in $$10$$ hours.
(A) $$425$$ km
(B) $$450$$ km
(C) $$475$$ km
(D) $$500$$ km
20- How long does a $$420\ –$$ miles trip take moving at $$50$$ miles per hour $$(m p h)$$?
(A) $$4$$ hours
(B) $$6$$ hours and $$24$$ minutes
(C) $$8$$ hours and $$24$$ minutes
(D) $$8$$ hours and $$30$$ minutes
21- In the $$x\ y\ -$$plane, the point $$(4,\ 3)$$ and $$(3,\ 2)$$ are on line $$A$$. Which of the following points could also be on line $$A$$? (Select one or more answer choices)
(A) $$(-\ 1,\ 2)$$
(B) $$(5,\ 7)$$
(C) $$(3,\ 4)$$
(D) $$(-\ 1,\ -\ 2)$$
22- Two third of $$18$$ is equal to $$\frac{2}{5}$$ of what number?
(A) $$12$$
(B) $$20$$
(C) $$30$$
(D) $$60$$
23- The marked price of a computer is $$D$$  dollar. Its price decreased by $$20\%$$ in January and later increased by $$10\%$$ in February.
What is the final price of the computer in $$D$$ dollar?
(A) $$0.80$$ $$D$$
(B) $$0.88$$ $$D$$
(C) $$0.90$$ $$D$$
(D) $$1.20$$ $$D$$
24- A $$40$$ shirt now selling for $$28$$ is discounted by what percent?
(A) $$20\%$$
(B) $$30\%$$
(C) $$40\%$$
(D) $$60\%$$

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25- Which of the following could be the product of two consecutive prime numbers?
(A) $$2$$
(B) $$10$$
(C) $$14$$
(D) $$15$$
26- Which of the following lists shows the fractions in order from least to greatest?
$$\frac{3}{4},\ \frac{2}{7},\ \frac{3}{8},\ \frac{5}{11}$$
(A) $$\frac{3}{8},\ \frac{2}{7},\ \frac{3}{4},\ \frac{5}{11}$$
(B) $$\frac{2}{7},\ \frac{5}{11},\ \frac{3}{8},\ \frac{3}{4}$$
(C) $$\frac{2}{7},\ \frac{3}{8},\ \frac{5}{11},\ \frac{3}{4}$$
(D) $$\frac{3}{8},\ \frac{2}{7},\ \frac {5}{11},\ \frac{3}{4}$$
27- A boat sails $$40$$ miles south and then $$30$$ miles east. How far is the boat from its start point?
(A) $$45$$ miles
(B) $$50$$ miles
(C) $$60$$ miles
(D) $$70$$ miles
28- The ratio of boys and girls in a class is $$4:7$$. If there are $$44$$ students in the class, how many more boys should be enrolled to make the ratio $$1:1$$?
(A) $$8$$
(B) $$10$$
(C) $$12$$
(D) $$16$$
29- Sophia purchased a sofa for $$530.40$$. The sofa is regularly priced at $$624$$. What was the percent discount Sophia received on the sofa?
(A) $$12\%$$
(B) $$15\%$$
(C) $$20\%$$
(D) $$35\%$$
30- The score of Emma was half as that of Ava and the score of Mia was twice that of Ava. If the score of Mia was $$60$$, what is the score of Emma?
(A) $$12$$
(B) $$15$$
(C) $$20$$
(D) $$30$$
31- A bag contains $$18$$ balls: two green, five black, eight blue, a brown, a red and one white.
If $$17$$ balls are removed from the bag at random, what is the probability that a brown ball has been removed?
(A) $$\frac{1}{9}$$
(B) $$\frac{ 1}{6}$$
(C)  $$\frac{16}{17}$$
(D) $$\frac{17}{18}$$
32- The average of five consecutive numbers is $$38$$. What is the smallest number?
(A) $$38$$
(B) $$36$$
(C) $$34$$
(D) $$12$$
33- How many tiles of $$8$$ cm$$^2$$ is needed to cover a floor of dimension $$6$$ cm by $$24$$ cm?
(A) $$6$$
(B) $$12$$
(C) $$18$$
(D) $$24$$
34- A rope weighs $$600$$ grams per meter of length. What is the weight in kilograms of $$12.2$$ meters of this rope? ($$1$$ kilograms $$= 1000$$ grams)
(A) $$0.0732$$
(B) $$0.732$$
(C) $$7.32$$
(D) $$73.20$$
35- A chemical solution contains $$4\%$$ alcohol. If there is $$24$$ ml of alcohol, what is the volume of the solution?
(A) $$240$$ ml
(B) $$480$$ ml
(C) $$600$$ ml
(D) $$1200$$ ml
36- The average weight of $$18$$ girls in a class is $$60$$ kg and the average weight of $$32$$ boys in the same class is $$62$$ kg. What is the average weight of all the $$50$$ students in that class?
(A) $$60$$
(B) $$61.28$$
(C) $$61.68$$
(D) $$62.90$$
37- Which of the following numbers is NOT a solution of the inequality $$2\ x\ -\ 5\ ≥\ 3\ x\ -\ 1$$?
(A) $$-\ 2$$
(B) $$-\ 4$$
(C) $$-\ 5$$
(D) $$-\ 8$$
38- If the following equations are true, what is the value of $$x$$?
$$a=\sqrt{3}$$
$$4\ a=\sqrt{4\ x}$$
(A) $$2$$
(B) $$3$$
(C) $$6$$
(D) $$12$$
39- The surface area of a cylinder is $$150\ π$$ cm$$^2$$. If its height is $$10$$ cm, what is the radius of the cylinder?
(A) $$13$$ cm
(B) $$11$$ cm
(C) $$15$$ cm
(D) $$5$$ cm
40- In $$1999$$, the average worker's income increased $$2,000$$ per year starting from $$24,000$$ annual salary.
Which equation represents income greater than average? ($$I =$$ income, $$x =$$ number of years after $$1999$$)
(A) $$I\ >\ 2000\ x\ +\ 24000$$
(B) $$I\ >\ –\ 2000\ x\ +\ 24000$$
(C)  $$I\ <\ –\ 2000\ x\ +\ 24000$$
(D) $$I\ <\ 2000\ x\ –\ 24000$$
41- If the function $$g(x)$$ has three distinct zeros, which of the following could represent the graph of $$g(x)$$?
(A) (B) (C) (D) 42- If $$60\%$$ of $$x$$ equal to $$30\%$$ of $$20$$, then what is the value of $$(x\ +\ 5)^2$$ ?
(A) $$25.25$$
(B) $$26$$
(C) $$26.01$$
(D) $$225$$
43- In the $$x\ y\ -$$plane, the point $$(4,\ 3)$$ and $$(3,\ 2)$$ are on line $$A$$. Which of the following equations of lines is parallel to line $$A$$?
(A) $$y=3\ x$$
(B) $$y=10$$
(C) $$y=\frac{x}{2}$$
(D) $$y=x$$
44- In the following equation when $$z$$ is divided by $$3$$, what is the effect on $$x$$?
$$x=\frac{8\ y\ +\frac{r}{r\ +\ 1}}{\frac{6}{z}}$$
(A) $$x$$ is divided by $$2$$
(B) $$x$$ is divided by $$3$$
(C) $$x$$ does not change
(D) $$x$$ is multiplied by $$3$$
45- A boat sails $$40$$ miles south and then $$30$$ miles east. How far is the boat from its start point?
(A) $$45$$ miles
(B) $$50$$ miles
(C) $$60$$ miles
(D) $$70$$ miles
46- For what real value of $$x$$ is the equation below true?
$$x^3\ -\ 6\ x^2\ +\ 3\ x\ -\ 18=0$$
(A) $$2$$
(B) $$4$$
(C) $$5$$
(D) $$6$$
47- If $$f(x)=3^x$$ and $$g(x)=log_3\ x$$, which of the following expressions is equal to $$f(3\ g(p))$$?
(A) $$3\ P$$
(B) $$3^p$$
(C) $$p^3$$
(D) $$p^9$$
48- The cost of using a car is $$0.35$$ per minutes. Which of the following equations represents the total cost $$c$$, in dollars, for $$h$$ hours of using the car?
(A) $$c=\frac{60\ h}{035}$$
(B) $$c=\frac{0.35}{60\ h}$$
(C) $$c=0.35 (60\ h)$$
(D) $$c=60\ h\ +\ 0.35$$
49- Mary’s average score after $$4$$ tests is $$90$$. What score on the $$5$$ th test would bring Mary’s average up to exactly $$92$$?
(A) $$102$$
(B) $$100$$
(C) $$98$$
(D) $$94$$
50- The equation $$x^2=5\ x\ -\ 4$$  has how many distinct real solutions?
(A) $$0$$
(B) $$1$$
(C) $$2$$
(D) $$3$$
51- If $$y = 4\ a\ b\ +\ 3\ b^3$$, what is y when $$a = 2$$ and $$b = 3$$?
(A) $$24$$
(B) $$31$$
(C) $$36$$
(D) $$105$$
52- If $$f(x) = 5\ +\ x$$ and $$g(x) =\ –\ x^2\ –\ 1\ –\ 2\ x$$, then find $$(g\ –\ f)\ (x)$$?
(A) $$x^2\ –\ 3\ x\ –\ 6$$
(B) $$x^2\ –\ 3\ x\ +\ 6$$
(C) $$–\ x^2\ –\ 3\ x\ +\ 6$$
(D) $$–\ x^2\ –\ 3\ x\ –\ 6$$
53- $$x$$ is $$y\%$$ of what number?
(A) $$\frac{100\ x}{y}$$
(B) $$\frac{100\ y}{x}$$
(C) $$\frac{x}{100\ y}$$
(D) $$\frac{y}{100\ x}$$
54- In the $$x\ y\ -$$plane, the line determined by the points $$(6,\ m)$$ and $$(m,\ 12)$$ passes through the origin.
Which of the following could be the value of $$m$$?
(A) $$\sqrt{6}$$
(B) $$12$$
(C) $$6\ \sqrt{2}$$
(D) $$9$$
55- A function $$g(3)=5$$ and $$g(5)=4$$. A function $$f(5)=2$$ and $$f(4)=6$$. What is the value of $$f(g(5))$$?
(A) $$5$$
(B) $$6$$
(C) $$7$$
(D) $$8$$
56- Which of the following points lies on the line $$2\ x\ +\ 4\ y = 10$$?
(A) $$(2,\ 1)$$
(B) $$(–\ 1,\ 3)$$
(C) $$(–\ 2,\ 2)$$
(D) $$(2,\ 2)$$
57- Point $$A$$ lies on the line with equation $$y\ -\ 3=2\ (x\ +\ 5)$$. If the x-coordinate of $$A$$ is $$8$$, what is the $$y\ -$$coordinate of $$A$$?
(A) $$14$$
(B) $$16$$
(C) $$22$$
(D) $$29$$
58- If $$|a|\ <\ 1$$, then which of the following is true? $$(b\ >\ 0)$$?
I.              $$–\ b\ <\ b\ a\ <\ b$$
II.             $$-\ a\ <\ a^2\ <\ a$$  if  $$a\ <\ 0$$
III.            $$-\ 5\ <\ 2\ a\ -\ 3\ <\ -\ 1$$
(A) I only
(B) III only
(C) I and III only
(D) I, II and III
59- In the equation above, if $$c$$ is negative and $$d$$ is positive, which of the following must be true?
$$\frac{c\ -\ d}{c}=a$$
(A) $$a\ <\ 1$$
(B) $$a=0$$
(C) $$a\ >\ 1$$
(D) $$a\ <\ -\ 1$$
60- If $$f(x)=2\ x^3\ +\ 5\ x^2\ +\ 2\ x$$ and $$g(x)=-\ 2$$, what is the value of $$f(g(x))$$ ?
(A) $$36$$
(B) $$32$$
(C) $$24$$
(D) $$0$$
 1- Choice C is correct The correct answer is $$2\ x^2\ -\ 4\ x\ +\ 4$$The correct answer is In order to figure out what the equation of the graph is, fist find the vertex. From the graph we can determine that the vertex is at $$(1,\ 2)$$. We can use vertex form to solve for the equation of this graph. Recall vertex form, $$y=a\ (x\ -\ h)^2\ +\ k$$, where $$h$$ is the $$x$$ coordinate of the vertex, and $$k$$ is the $$y$$ coordinate of the vertex. Plugging in our values, you get $$y=a\ (x\ -\ 1)^2\ +\ 2$$To solve for $$a$$, we need to pick $$a$$ point on the graph and plug it into the equation.Let’s pick $$(-\ 1,\ 10)$$. $$10=a\ (-\ 1\ -\ 1)^2\ +\ 2\ →\ 10=a\ (-\ 2)^2\ +\ 2\ →\ 10=4\ a\ +\ 2$$$$8=4\ a\ →\ a=2$$ Now the equation is : $$y=2\ (x\ -\ 1)^2\ +\ 2$$Let’s expand this, $$y=2\ (x^2\ -\ 2\ x\ +\ 1)\ +\ 2\ →\ y=2\ x^2\ -\ 4\ x\ +\ 2\ +\ 2\ →\ y=2\ x^2\ -\ 4\ x\ +\ 4$$The equation in Choice C is the same. 2- Choice B is correct The correct answer is $$7\ ≤\ x\ ≤\ 13$$$$|x\ -\ 10|\ ≤\ 3\ →\ -\ 3\ ≤\ x\ -\ 10\ ≤\ 3\ →\ -\ 3\ +\ 10\ ≤\ x\ -\ 10\ +\ 10\ ≤\ 3\ +\ 10\ →\ 7\ ≤\ x\ ≤\ 13$$ 3- Choice D is correct The correct answer is {$$5,\ 11$$}The union of $$A$$ and $$B$$ is: $$A∪B=$${$$1,\ 2,\ 3,\ 4,\ 5,\ 6,\ 11,\ 15$$}The intersection of $$(A∪B)$$ and $$C$$ is: $$(A∪B)∩C=$${$$5,\ 11$$} 4- Choice C is correct The correct answer is $$7$$ Adding $$6$$ to each side of the inequality $$4\ n\ -\ 3\ ≥\ 1$$ yields the inequality $$4\ n\ +\ 3\ ≥\ 7$$. Therefore, the least possible value of $$4\ n\ +\ 3$$ is $$7$$. 5- Choice D is correct The correct answer is $$60$$ feetThe relationship among all sides of special right triangle $$30^\circ\ -\ 60^\circ\ -\ 90^\circ$$ is provided in this triangle: In this triangle, the opposite side of $$30^\circ$$ angle is half of the hypotenuse. Draw the shape of this question: The ladder is the hypotenuse. Therefore, the ladder is $$60$$ ft. 6- Choice D is correct The correct answer is $$9$$The union of $$A$$ and $$B$$ is: $$A∪B=$${$$1,\ 2,\ 4,\ 8,\ 12,\ 16,\ 24,\ 32,\ 48$$}. There are $$9$$  elements in $$A∪B$$. 7- Choice D is correct The correct answer is $$15$$ cmUse Pythagorean Theorem: $$a^2\ +\ b^2=c^2$$. $$9^2\ +\ 12^2 = c^2 ⇒ 81\ +\ 144=c^2 ⇒ 225=c^2\ ⇒c=15$$ 8- Choice A is correct The correct answer is $$10\%$$The percent of girls playing tennis is: $$40\%\ ×\ 25\% = 0.40\ ×\ 0.25 = 0.10 = 10\%$$ 9- Choice B is correct The correct answer is $$16\ π$$Area of the circle is less than $$16\ π$$. Use the formula of areas of circles. Area $$= π\ r^2 ⇒ 64\ π\ >\ π\ r^2\ ⇒ 64\ >\ r^2⇒ r\ <\ 8$$Radius of the circle is less than $$8$$. Let’s put $$8$$ for the radius. Now, use the circumference formula: Circumference $$=2\ π\ r=2\ π\ (8)=16\ π$$Since the radius of the circle is less than $$8$$. Then, the circumference of the circle must be less than $$16\ π$$. Only choice $$A$$ is less than $$16\ π$$. 10- Choice C is correct The correct answer is $$x=-\ 2,\ y=3$$\begin{cases}x\ +\ 4\ y=10\\5\ x\ +\ 10\ y=20\end{cases} → Multiply the top equation by $$-\ 5$$ then,\begin{cases}-\ 5\ x\ -\ 20\ y=-\ 50\\5\ x\ +\ 10\ y=20\end{cases} → Add two equations. $$-\ 10\ y=-\ 30\ →\ y=3$$ , plug in the value of $$y$$ into the first equation: $$x\ +\ 4\ y=10\ →\ x\ +\ 4\ (3)=10\ →\ x\ +\ 12=10$$Subtract $$12$$ from both sides of the equation. Then: $$x\ +\ 12=10\ →\ x=-\ 2$$ 11- Choice D is correct The correct answer is $$300\%$$Write the equation and solve for $$B: 0.60\ A = 0.20\ B$$, divide both sides by $$0.20$$, then:$$\frac{0.60}{0.20}$$ $$A=B$$, therefore: $$B=3\ A$$, and $$B$$ is $$3$$ times of $$A$$ or it’s $$300\%$$ of $$A$$. 12- Choice B is correct The correct answer is $$20\%$$Use this formula: Percent of Change $$\frac{New Value\ -\ Old Value}{Old Value}\ ×\ 100\%$$ $$\frac{16000\ -\ 20000}{20000}\ ×\ 100\%=20\%$$ and $$\frac{12800\ -\ 16000}{16000}\ ×\ 100\%=20\%$$ 13- Choice D is correct The correct answer is $$729$$ cm$$^3$$If the length of the box is $$27$$, then the width of the box is one third of it, $$9$$, and the height of the box is $$3$$ (one third of the width). The volume of the box is: $$V =$$ lwh $$= (27)\ (9)\ (3) = 729$$ 14- Choice D is correct The correct answer is $$90$$To find the number of possible outfit combinations, multiply number of options for each factor: $$6\ ×\ 3\ ×\ 5=90$$ 15- Choice C is correct The correct answer is $$1,800$$Use simple interest formula: $$I=$$prt $$(I =$$ interest,p $$=$$ principal,$$r =$$ rate,$$t =$$ time$$)$$$$I=(8,000)\ (0.045)\ (5)=1,800$$ 16- Choice C is correct The correct answer is $$(9,\ 3)$$First, find the equation of the line. All lines through the origin are of the form $$y=m\ x$$, so the equation is $$y=\frac{1}{3}\ x$$. Of the given choices, only choice $$C\ (9,\ 3)$$, satisfies this equation: $$y=\frac{1}{3}\ x\ →\ 3=\frac{1}{3}\ (9)=3$$ 17- Choice C is correct The correct answer is $$125\%$$Use percent formula: part $$=\frac{percent}{100}\ ×$$ whole $$25= \frac{percent}{100}\ ×\ 20 \ ⇒\ 25= \frac{percent\ ×\ 20}{100}\ ⇒\ 25=\frac{percent\ ×\ 2}{10}$$, multiply both sides by $$10$$.$$250=$$percent $$×\ 2$$, divide both sides by $$2$$. 125=percent 18- Choice C is correct The correct answer is $$46$$The area of the trapezoid is: Area$$=\frac{1}{2}\ h\ (b_1\ +\ b_2 )=\frac{1}{2}\ (x)\ (13\ +\ 8)=126\ →\ 10.5\ x\ =126\ →\ x=12$$. $$y=\sqrt{5^2\ +\ 12^2 }=\sqrt{25\ +\ 144}=\sqrt{169}=13$$The perimeter of the trapezoid is: $$12\ +\ 13\ +\ 8\ +\ 13=46$$ 19- Choice C is correct The correct answer is $$475$$ kmAdd the first $$5$$ numbers. $$40\ +\ 45\ +\ 50\ +\ 35\ +\ 55 = 225$$To find the distance traveled in the next $$5$$ hours, multiply the average by number of hours.Distance $$=$$ Average $$×$$ Rate $$= 50\ ×\ 5 = 250$$. Add both numbers. $$250\ +\ 225 = 475$$ 20- Choice C is correct The correct answer is $$8$$ hours and $$24$$ minutesUse distance formula: Distance $$=$$ Rate $$×$$ time $$⇒ 420 = 50\ ×\ T$$, divide both sides by $$50.\frac{ 420} { 50} = T ⇒ T = 8.4$$ hours. Change hours to minutes for the decimal part. $$0.4$$ hours $$= 0.4\ ×\ 60 = 24$$ minutes. 21- Choice D is correct The correct answer is $$(-\ 1,\ -\ 2)$$The equation of a line is in the form of $$y=m\ x\ +\ b$$, where $$m$$ is the slope of the line and $$b$$ is the $$y\ -$$intercept of the line. Two points $$(4,\ 3)$$ and $$(3,\ 2)$$ are on line $$A$$. Therefore, the slope of the line $$A$$ is: slope of line $$A=\frac{y_2\ -\ y_1}{x_2\ -\ x_1} = \frac{2\ -\ 3}{3\ -\ 4}=\frac{-\ 1}{-\ 1}=1$$The slope of line $$A$$ is $$1$$. Thus, the formula of the line $$A$$ is: $$y=m\ x\ +\ b=x\ +\ b$$, choose a point and plug in the values of $$x$$ and $$y$$ in the equation to solve for $$b$$. Let’s choose point $$(4,\ 3)$$. Then:$$y=x\ +\ b\ →\ 3=4\ +\ b\ →\ b=3 \ -\ 4=-\ 1$$The equation of line $$A$$ is: $$y=x\ -\ 1$$. Now, let’s review the choices provided:$$A.$$        $$(-\ 1,\ 2) y=x\ -\ 1\ →\ 2=-\ 1\ -\ 1=-\ 2$$                     This is not true.$$B.$$        $$(5,\ 7) y=x\ -\ 1\ →\ 7=5\ -\ 1=4$$                                This is not true.$$C.$$        $$(3,\ 4) y=x\ -\ 1\ →\ 4=3 \ -\ 1=2$$                               This is not true. $$D.$$        $$(-\ 1,\ -\ 2) y=x\ -\ 1\ →\ -\ 2=-\ 1\ -\ 1=-\ 2$$              This is true! 22- Choice C is correct The correct answer is $$30$$Let $$x$$ be the number. Write the equation and solve for $$x$$. $$\frac{2}{3}\ ×\ 18= \frac{2}{5} .\ x\ ⇒\frac{2\ ×\ 18}{3}=\frac{2\ x}{5}$$ , use cross multiplication to solve for $$x$$.$$5\ ×\ 36=2\ x\ ×\ 3\ ⇒180=6\ x\ ⇒\ x=30$$ 23- Choice B is correct The correct answer is $$0.88$$ $$D$$To find the discount, multiply the number by $$(100\%\ –$$ rate of discount$$)$$.Therefore, for the first discount we get: $$(D)\ (100\% \ –\ 20\%) = (D)\ (0.80) = 0.80\ D$$For increase of $$10\%: (0.85\ D)\ (100\%\ +\ 10\%) = (0.85\ D)\ (1.10) = 0.88\ D = 88\%$$ of $$D$$ 24- Choice B is correct The correct answer is $$30\%$$Use the formula for Percent of Change $$\frac{New \ Value\ -\ Old\ Value}{Old\ Value}\ ×\ 100\%$$ $$\frac{28\ -\ 40}{40}\ ×\ 100\%= –\ 30\%$$ (Negative sign here means that the new price is less than old price). 25- Choice D is correct The correct answer is $$15$$Some of prime numbers are: $$2,\ 3,\ 5,\ 7,\ 11,\ 13$$. Find the product of two consecutive prime numbers: $$2\ ×\ 3 = 6$$ (not in the options), $$3\ ×\ 5 = 15$$ (bingo!), $$5\ ×\ 7 = 35$$ (not in the options)$$7\ ×\ 11 = 77$$ (not in the options) 26- Choice C is correct The correct answer is $$\frac{2}{7},\ \frac{3}{8},\ \frac{5}{11},\ \frac{3}{4}$$Let’s compare each fraction: $$\frac{2}{7}\ <\ \frac{3}{8}\ <\ \frac{5}{11}\ <\ \frac{3}{4}$$ Only choice C provides the right order. 27- Choice B is correct The correct answer is $$50$$ milesUse the information provided in the question to draw the shape.Use Pythagorean Theorem: $$a^2\ +\ b^2=c^2$$ $$40^2\ +\ 30^2=c^2 \ ⇒\ 1600\ +\ 900= c^2 ⇒ 2500=c^2 \ ⇒ \ c=50$$ 28- Choice C is correct The correct answer is $$12$$The ratio of boy to girls is $$4:7$$. Therefore, there are $$4$$ boys out of $$11$$ students. To find the answer, first divide the total number of students by $$11$$, then multiply the result by $$4$$. $$44\ ÷\ 11=4\ ⇒\ 4\ ×\ 4=16$$. There are $$16$$ boys and $$28\ (44\ –\ 16)$$ girls. So, $$12$$ more boys should be enrolled to make the ratio $$1:1$$ 29- Choice B is correct The correct answer is $$15\%$$The question is this: $$530.40$$ is what percent of $$624$$? Use percent formula: part  $$=$$ $$\frac{ percent}{100}\ ×$$ whole. $$530.40=$$$$\frac{ percent}{100}\ ×\ 624 ⇒ 530.40= \frac{percent \ ×\ 624}{100}\ ⇒\ 53040 =$$ percent $$×\ 624\ ⇒$$ percent $$= \frac{53040}{624}=85$$ $$530.40$$ is $$85\%$$ of $$624$$. Therefore, the discount is: $$100\%\ –\ 85\%=15\%$$ 30- Choice B is correct The correct answer is $$15$$If the score of Mia was $$60$$, therefore the score of Ava is $$30$$. Since, the score of Emma was half as that of Ava, therefore, the score of Emma is $$15$$. 31- Choice D is correct The correct answer is $$\frac{17}{18}$$If $$17$$ balls are removed from the bag at random, there will be one ball in the bag. The probability of choosing a brown ball is $$1$$ out of $$18$$. Therefore, the probability of not choosing a brown ball is $$17$$ out of $$18$$ and the probability of having not a brown ball after removing $$17$$ balls is the same. 32- Choice B is correct The correct answer is $$36$$Let $$x$$ be the smallest number. Then, these are the numbers: $$x,\ x\ +\ 1,\ x\ +\ 2,\ x\ +\ 3,\ x \ +\ 4$$average $$=\frac{sum\ of\ terms}{number\ of\ terms} ⇒ 38=\frac{x\ +\ (x\ +\ 1)\ +\ (x\ +\ 2)\ +\ (x\ +\ 3)\ +\ (x\ +\ 4)}{5}\ ⇒\ 38= \frac{5\ x\ +\ 10}{5}\ ⇒\ 190=5\ x\ +\ 10\ ⇒\ 180=5\ x\ ⇒ x=36$$ 33- Choice C is correct The correct answer is $$18$$The area of the floor is: $$6$$ cm $$×\ 24$$ cm $$= 144$$ cm$$^2$$The number of tiles needed $$= 144\ ÷\ 8 = 18$$ 34- Choice C is correct The correct answer is $$7.32$$The weight of $$12.2$$ meters of this rope is: $$12.2\ ×\ 600$$ g$$=7,320$$ g$$1$$ kg $$= 1,000$$ g, therefore, $$7,320$$ g $$÷\ 1000=7.32$$ kg 35- Choice C is correct The correct answer is $$600$$ ml$$4\%$$ of the volume of the solution is alcohol. Let $$x$$ be the volume of the solution. Then: $$4\%$$ of $$x=24$$ ml $$⇒ 0.04\ x=24\ ⇒\ x\ =24\ ÷\ 0.04=600$$ 36- Choice B is correct The correct answer is $$61.28$$average $$=\frac{sum\ of\ terms}{number\ of\ terms}$$The sum of the weight of all girls is: $$18\ ×\ 60=1080$$ kgThe sum of the weight of all boys is: $$32\ ×\ 62=1984$$ kgThe sum of the weight of all students is: $$1080\ +\ 1984=3064$$ kgaverage$$=\frac{3064}{50}=61.28$$ 37- Choice A is correct The correct answer is $$-\ 2$$Subtracting $$2\ x$$ and adding $$5$$ to both sides of $$2\ x\ -\ 5\ ≥\ 3\ x\ -\ 1$$ gives $$-\ 4\ ≥\ x$$. Therefore, $$x$$ is a solution to $$2\ x\ -\ 5\ ≥\ 3\ x\ -\ 1$$ if and only if $$x$$ is less than or equal to $$-\ 4$$ and $$x$$ is NOT a solution to $$2\ x\ -\ 5\ ≥\ 3\ x\ -\ 1$$ if and only if $$x$$ is greater than $$-\ 4$$. Of the choices given, only $$-\ 2$$ is greater than $$-\ 4$$ and, therefore, cannot be a value of $$x$$. 38- Choice D is correct The correct answer is $$12$$Given the two equations, substitute the numerical value of a into the second equation to solve for . $$a=\sqrt{3},\ 4\ a=\sqrt{4\ x}$$Substituting the numerical value for a into the equation with $$x$$ is as follows.$$4(\sqrt{3})=\sqrt{4x},$$ From here, distribute the $$4$$. $$4\sqrt{3}=\sqrt{4x}$$Now square both side of the equation.$$(4\sqrt{3})^2=(\sqrt{4x})^2$$Remember to square both terms within the parentheses. Also, recall that squaring a square root sign cancels them out. $$4^2 \sqrt{3}^2=4\ x,\ 16\ (3)=4\ x,\ 48=4\ x,\ x=12$$ 39- Choice D is correct The correct answer is $$5$$ cmFormula for the Surface area of a cylinder is: $$S\ A=2\ π\ r^2\ +\ 2\ π\ r\ h\ →\ 150\ π=2\ π\ r^2\ +\ 2\ π\ r\ (10)\ →r^2\ +\ 10\ r\ -\ 75=0\ →\ (r\ +\ 15)\ (r\ -\ 5)=0\ →\ r=5$$ or $$r=-\ 15$$ (unacceptable) 40- Choice A is correct The correct answer is $$I\ >\ 2000\ x\ +\ 24000$$Let $$x$$ be the number of years. Therefore, $$2,000$$ per year equals $$2000\ x$$. starting from $$24,000$$ annual salary means you should add that amount to $$2000\ x$$. Income more than that is: $$I\ >\ 2000\ x\ +\ 24000$$ 41- Choice C is correct A zero of a function corresponds to an $$x\ -$$intercept of the graph of the function in the $$x\ y\ -$$plane. Therefore, the graph of the function $$g(x)$$, which has three distinct zeros, must have three $$x\ -$$intercepts. Only the graph in choice $$C$$ has three $$x\ -$$intercepts. 42- Choice D is correct The correct answer is $$225$$$$0.6\ x=(0.3)\ ×\ 20\ →\ x=10\ →\ (x\ +\ 5)^2=(15)^2=225$$ 43- Choice D is correct The correct answer is $$y=x$$The slop of line $$A$$ is: $$m=\frac{y_2\ -\ y_1}{x_2\ -\ x_1 }=\frac{3\ -\ 2}{4\ -\ 3}=1$$Parallel lines have the same slope and only choice $$D\ (y=x)$$ has slope of $$1$$. 44- Choice B is correct The correct answer is $$x$$ is divided by $$3$$Replace $$z$$ by $$\frac{z}{3}$$ and simplify.$$x_1=\frac{8\ y\ +\frac{r}{r\ +\ 1}}{\frac{6}{\frac{z}{3}}}$$$$=\frac{8\ y\ +\ \frac{r}{r\ +\ 1}}{\frac{3\ ×\ 6}{z}}$$$$=\frac{8\ y+\frac{r}{r\ +\ 1}}{3\ ×\ \frac{6}{z}}$$$$=\frac{1}{3}$$$$×\frac{8\ y\ + \frac{r}{r\ +\ 1}}{\frac{6}{z}}=\frac{x}{3}$$When $$z$$ is divided by $$3,\ x$$ is also divided by $$3$$. 45- Choice B is correct The correct answer is $$50$$ milesUse the information provided in the question to draw the shape.Use Pythagorean Theorem: $$a^2\ +\ b^ 2 = c^ 2$$$$40^2\ +\ 30^2 = c^ 2\ ⇒\ 1600\ +\ 900 = c^2\ ⇒\ 2500 = c^ 2\ ⇒\ c = 50$$ 46- Choice D is correct The correct answer is$$6$$The four$$-$$term polynomial expression can be factored completely, by grouping, as follows: $$(x^3\ -\ 6\ x^2 )\ +\ (3\ x\ -\ 18)=0$$$$x^2\ (x\ -\ 6)\ +\ 3\ (x\ -\ 6)=0$$ $$(x\ -\ 6)\ (x^2\ +\ 3)=0$$By the zero$$-$$product property, set each factor of the polynomial equal to $$0$$ and solve each resulting equation for $$x$$. This gives $$x=6$$ or $$x=±\ i\sqrt{3}$$, respectively. Because the equation the question asks for the real value of $$x$$ that satisfies the equation, The correct answer is $$6$$. 47- Choice C is correct The correct answer is$$p^3$$To solve for $$f\ (3\ g(P))$$, first, find $$3\ g(p)$$. $$g(x)=\log_3$$ $$x\ →\ g(p)=\log_3\ p\ →\ 3\ g(p)=3\ \log_3\ p=\log_3\ p^3$$Now, find $$f\ (3\ g(p)): f\ (x)=3^x\ →\ f\ (\log_3\ p^3 )=3^{\log_3\ p^3}$$Logarithms and exponentials with the same base cancel each other. This is true because logarithms and exponentials are inverse operations. Then: $$f\ (\log_3\ p^3 )=3^(\log_3\ p^3 )=p^3$$ 48- Choice C is correct The correct answer is $$c=0.35 (60\ h)$$$$0.35$$ per minute to use car. This per-minute rate can be converted to the hourly rate using the conversion $$1$$ hour $$= 60$$ minutes, as shown below.$$\frac{0.35}{minute}\ ×\ \frac{60\ minutes}{1\ hours}=\frac{(0.35\ ×\ 60)}{hour}$$Thus, the car costs$$(0.35\ ×\ 60)$$ per hour.Therefore, the cost c, in dollars, for $$h$$ hours of use is $$c=(0.35\ ×\ 60)h$$,Which is equivalent to $$c=0.35\ (60\ h)$$ 49- Choice B is correct The correct answer is $$100$$The best way to deal with changing averages is to use the sum. Use the old average to figure out the total of the first $$4$$ scores: Sum of first $$4$$ scores: $$(4)\ (90)=360$$Use the new average to figure out the total she needs after the 5th score: Sum of $$5$$ score: $$(5)\ (92)=460$$To get her sum from $$360$$ to $$460$$, Mary needs to score $$460\ -\ 360=100$$. 50- Choice C is correct The correct answer is $$2$$To solve a quadratic equation, put it in the $$a\ x^2\ +\ b\ x\ +\ c=0$$ form, factor the left side, and set each factor equal to $$0$$ separately to get the two solutions. To solve $$x^2=5\ x\ -\ 4$$ , first, rewrite it as $$x^2\ -\ 5\ x\ +\ 4=0$$. Then factor the left side: $$x^2\ -\ 5\ x\ +\ 4 =0$$ , $$(x\ -\ 4)\ (x\ -\ 1)=0$$$$x=1$$ Or $$x=4$$, There are two solutions for the equation. 51- Choice D is correct The correct answer is $$105$$$$y = 4\ a\ b\ +\ 3\ b^3$$. Plug in the values of a and b in the equation: $$a = 2$$ and $$b = 3$$$$y = 4\ (2)\ (3)\ +\ 3\ (3)^3 = 24\ +\ 3\ (27) = 24\ +\ 81 = 105$$ 52- Choice D is correct The correct answer is $$–\ x^2\ –\ 3\ x\ –\ 6$$$$(g\ –\ f)\ (x) = g(x)\ –\ f(x) = (–\ x^2\ –\ 1\ –\ 2\ x)\ –\ (5\ +\ x)$$$$–\ x^2\ –\ 1\ –\ 2\ x\ –\ 5\ –\ x = –\ x^2\ –\ 3\ x\ –\ 6$$ 53- Choice A is correct The correct answer is $$\frac{100\ x}{y}$$Let the number be $$A$$. Then: $$x=y\%\ ×\ A$$. Solve for $$A.\ x=\frac{y}{100}\ ×\ A$$Multiply both sides by $$\frac{100}{y}: x\ ×\ \frac{100}{y}=\frac{y}{100}\ ×\ \frac{100}{y}\ ×\ A\ →\ A=\frac{100\ x}{y}$$ 54- Choice C is correct The correct answer is $$6\ \sqrt{2}$$The line passes through the origin, $$(6,\ m)$$ and $$(m,\ 12)$$.Any two of these points can be used to find the slope of the line. Since the line passes through $$(0,\ 0)$$ and $$(6,\ m)$$, the slope of the line is equal to $$\frac{m\ -\ 0}{6\ -\ 0}=\frac{m}{6}$$. Similarly, since the line passes through $$(0,\ 0)$$ and $$(m,\ 12)$$, the slope of the line is equal to $$\frac{12\ -\ 0}{m\ -\ 0}=\frac{12}{m}$$. Since each expression gives the slope of the same line, it must be true that $$\frac{m}{6}=\frac{12}{m}$$ Using cross multiplication gives $$\frac{m}{6}=\frac{12}{m}\ →\ m^2=72\ →\ m=±\sqrt{72}=±\sqrt{36×2}=±\sqrt{36}\ ×\ \sqrt{2}=±6\ \sqrt{2}$$ 55- Choice B is correct The correct answer is $$6$$It is given that $$g(5)=4$$. Therefore, to find the value of f$$(g(5))$$, then $$f(g(5))=f(4)=6$$ 56- Choice B is correct The correct answer is $$(–\ 1,\ 3)$$Plug in each pair of number in the equation:A.              $$(2,\ 1):$$ $$2\ (2)\ +\ 4\ (1) = 8$$                Nope!B.              $$(–\ 1,\ 3):$$ $$2\ (–\ 1)\ +\ 4\ (3) = 10$$      Bingo!C.              $$(–\ 2,\ 2):$$ $$2\ (–\ 2)\ +\ 4\ (2) = 4$$        Nope!D.              $$(2,\ 2):$$ $$2\ (2)\ +\ 4\ (2) = 12$$               Nope! 57- Choice D is correct The correct answer is $$29$$Here we can substitute $$8$$ for $$x$$ in the equation. Thus, $$y\ -\ 3=2\ (8\ +\ 5),\ y\ -\ 3=26$$Adding $$3$$ to both side of the equation: $$y=26\ +\ 3 ,\ y=29$$ 58- Choice C is correct The correct answer is I and III onlyLet’s review the options: $$I. |a|\ <\ 1\ →\ -\ 1\ <\ a\ <\ 1$$Multiply all sides by $$b$$. Since, $$b\ >\ 0\ →\ -\ b\ <\ b\ a\ <\ b$$II. Since, $$-\ 1\ <\ a\ <\ 1$$,and $$a\ <\ 0\ →\ -\ a\ >\ a^2\ >\ a$$ (plug in $$-\frac{1}{2}$$, and check!)III. $$-\ 1\ <\ a\ < \ 1$$,multiply all sides by $$2$$,then: $$-\ 2\ <\ 2\ a\ <\ 2$$,subtract $$3$$ from all sides,then: $$-\ 2\ -\ 3\ <\ 2\ a\ -\ 3\ <\ 2\ -\ 3\ →\ -\ 5\ <\ 2\ a\ -\ 3\ <\ -\ 1$$I and III are correct. 59- Choice C is correct The correct answer is $$a\ >\ 1$$The equation can be rewritten as $$c\ -\ d=a\ c\ →$$(divide both sides by $$c$$) $$1\ -\ \frac{d}{c}=a$$, since $$c\ <\ 0$$ and $$d\ >\ 0$$, the value of $$-\ \frac{d}{c}$$ is positive. Therefore, $$1$$ plus $$a$$ positive number is positive. $$a$$ must be greater than $$1$$. $$a\ >\ 1$$ 60- Choice D is correct The correct answer is $$0$$$$g(x)=-\ 2,$$ then $$f(g(x) )= f\ (-\ 2)=2\ (-\ 2)^3\ +\ 5\ (-\ 2)^2\ +\ 2\ (-\ 2)= -\ 16 \ +\ 20\ -\ 4=0$$

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