Question 1

When the expression (x + 2)² + 4(x + 2) + 3 is rewritten as the product of two binomials, the result is

Accepted Answer

(x + 5)(x + 3)

Answer

(x + 2)(x + 2)

Answer

(x + 6)(x + 1)

Answer

(x + 3)(x + 1)

Question 2

Perry invested in property that cost him $1500. Five years later it was worth $3000, and 10 years from his original purchase, it was worth $6000. Assuming the growth rate remains the same, which type of function could he create to find the value of his investment 30 years from his original purchase?

30

linear function

quadratic function

trigonometric function

exponential function

Accepted Answer

exponential function

Answer

linear function

Answer

quadratic function

Answer

trigonometric function

Question 3

If (a³+ 27) + (a + 3)(a²+ ma + 9), then m equals

Accepted Answer

-3

Answer

-9

Answer

6

Answer

3

Question 4

If cos θ = - 3/4and θ is in Quadrant III, then sin θ is equivalent to

Accepted Answer

- $\frac{\sqrt{7}}{4}$

Answer

- $\frac{\sqrt{7}}{4}$

Answer

$\frac{\sqrt{7}}{4}$

Answer

$\frac{\sqrt{7}}{4}$

Question 5

A veterinary pharmaceutical company plans to test a new drug to treat a common intestinal infection among puppies. The puppies are randomly assigned to two equal groups. Half of the puppies will receive the drug, and the other half will receive a placebo. The veterinarians monitor the puppies. This is an example of which study method?

Accepted Answer

controlled experiment

Answer

survey

Answer

observational study

Answer

census

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