Bluebook SAT Test SAT Exponents and Radicals Practice 8

Question 1

Which of the following equals (a⁴ × b⁶)^(1/2)?

Accepted Answer

a²b³

Answer

a²b²

Answer

a⁴b³

Answer

a³b²

Question 2

An exponential function is y = 3 × 2^x. What is the percent increase from x = 2 to x = 3?

Accepted Answer

100%

Answer

50%

Answer

150%

Answer

200%

Question 3

What is the value of 4^(3/2) + 8^(2/3)?

Accepted Answer

12

Answer

10

Answer

11

Answer

14

Question 4

Simplify: (3^n × 9^n) / 27^n

Accepted Answer

1

Answer

3^n

Answer

9^n

Answer

27^n

Question 5

Solve: √(2x − 3) = √(x + 7)

Accepted Answer

x = 10

Answer

x = 5

Answer

x = 8

Answer

x = 14

Question 6

What is the approximate value of 5^(1.5)?

Accepted Answer

11.18

Answer

7.07

Answer

9.66

Answer

12.50

Question 7

Which expression is equivalent to (√x + √y)²?

Accepted Answer

x + y + 2√(xy)

Answer

x + y

Answer

x + y + 2xy

Answer

x + y + √(xy)