Quiz about Rev_ ReV Accel

Question 1

Which Expression is equivalent to $$\frac{7^8}{7^2}$$

Accepted Answer

$$7^6$$

Answer

$$7^2$$

Answer

$$7^4$$

Answer

$$7^{10}$$

Question 2

Select all expressions that are equivalent to $$\left(0.8^3\right)^4$$

Accepted Answer

$$0.8^{12}$$

Accepted Answer

$$\left(0.8^2\right)^6$$

Answer

$$0.8^7$$

Answer

$$\left(0.4^2\ x\ 0.4^6\right)$$

Question 3

There are about 2.54 centimeters in 1 inch. About how many are there in 6 inches?

Accepted Answer

15.24

Answer

2.36

Answer

2.54

Answer

13.22

Question 4

Diane fish tank contains 100 gallons of salt water, About how many liters does the tank hold?

1 gal = 3.79L

Accepted Answer

379

Answer

26

Answer

38

Answer

264

Question 5

Five times a number plus fifty -four and five tenths is equal to one hundred ninety -nine and five tenths. What is the number.

Accepted Answer

29

Answer

9

Answer

51

Answer

150

Question 6

Leah goes to the mall and purchases 4 books with the same price. She is also purchases chocolate caramel milkshake for $ 6.93 . Leah spent $ 75.40 in all. Write an equation to determine the price of each book.

Accepted Answer

4x + 6.93 = 75.40

Answer

4x +75 . 40 = 6.93

Answer

6.93 x + 4 = 75.40

Answer

75.40x - 4 =6.93

Question 7

Apply the Law of Exponent to write the equivalent expression of $$-3a^4b^6\ \ \cdot\ \ \left(-\ 5a^3b^2\right)$$

Accepted Answer

$$15a^7b^8$$

Answer

$$-8a^7b^8$$

Answer

$$-8a^{12\ }b^{12}$$

Answer

$$15a^{12}b^{12}$$

Question 8

What is the solution to the equation? $$0.25\left(2x-5\right)\ =\ \frac{3}{4}x\ -\ 2\ \frac{1}{4}$$

Accepted Answer

x = 4

Answer

x = - 11

Answer

x = 5 . 5

Answer

x = 29

Question 9

Which expression is equivalent to $$\left(4x\ -1\right)\ \left(\ -3.4x\right)$$

Accepted Answer

$$-13.6x^2\ +\ 3.4x$$

Answer

$$-13.6x\ \ -1\ $$

Answer

$$-13.6x^2\ +1$$

Answer

$$-13.6x^{2\ }-3.4x$$

Question 10

What is the solution of the inequality $$1.5\ x\ \ -\ 8.3\ \le\ 7.2$$

Accepted Answer

$$x\le9$$

Answer

$$x\le4$$

Answer

$$x\ge-9$$

Answer

$$x\ge-4$$

Question 11

Which expression is equivalent to the given expression. $$\left(-\frac{1}{4}x\ \right)\left(\frac{1}{2}x\ -\frac{3}{4}\right)$$

Accepted Answer

$$-\frac{1}{8}x^2\ +\ \frac{3}{16}x$$

Answer

$$-\frac{1}{8}x^2\ +1$$

Answer

$$-\frac{1}{8}x\ +\frac{3}{16}$$

Answer

$$-\frac{1}{8}x^2\ +\ \frac{3}{4}x$$

Question 12

Sita rented a canoe. The equation y = 15x +25 represented the cost in dollars , y, of renting a canoe for x hours. Select all of the true statements.

Accepted Answer

The slope is 15 ; it means the initial cost of renting the canoe increases $15 each hour.

Accepted Answer

The y-intercept is 25; It means the initial cost of renting the canoe is $25

Answer

The slope is 15: it means the initial cost of renting the canoe is $15.

Answer

The slope is 25 ; it means the total cost of renting the canoe increases $25 each hour.

Rev_ ReV Accel

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