Unit Test

Question 1

Which function has a simplified base of 4?

Revolt · Accepted Answer

C: f(x) = 4

Question 2

Which is equivalent to ?

Revolt · Accepted Answer

C: 9

Question 3

Which is equivalent to ?

Revolt · Accepted Answer

A: RootIndex 4 StartRoot 16 EndRoot Superscript 3 x

Question 4

Which expression is equivalent to ?

Revolt · Accepted Answer

D: 3

Question 5

The area of a square room in square units can be represented by 169x2y4. What is the perimeter of the room?

Revolt · Accepted Answer

D: 52|x|y2 units

Question 6

A scientist has 100 milligrams of a radioactive element. The amount of radioactive element remaining after t days can be determined using the equation . After three days, the scientist receives a second shipment of 100 milligrams of the same element. The equation used to represent the amount of shipment 2 remaining after t days is . After any time, t, the mass of the element remaining in shipment 1 is what percentage of the mass of the element remaining in shipment 2?

Revolt · Accepted Answer

B: 81.2%

Question 7

What is the simplified form of the following expression?

Revolt · Accepted Answer

A: 10|a5b5|

Question 8

A science teacher told his students that the expression represents the area in square units of the contaminated square region in their activity. What is the width of the region in simplest form?

Revolt · Accepted Answer

B: units

Question 9

A biologist begins working with a sample containing 20,000 bacteria. The population size doubles every 10 days according to the equation , where t represents the number of days. After seven days the biologist begins working with a second sample of 20,000 bacteria. The equation used to represent the population of sample 2 after t days is . Which of the following is an equivalent form of the equation for the population of sample 2?

Revolt · Accepted Answer

D: mc006-6.jpg

Question 10

Combine these radicals.

Revolt · Accepted Answer

C:

Unit Test Answers

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