## What is the minimum value of 9 cos x?

(A)–9

(B)–2

(C)0

(D)2

(E)9

The Correct Answer

Explanation

A function *f*(*x*) is defined as even if and only if *f*(*x*) = *f*(-*x*) for all real values of *x*. Which one of the following graphs represents an even function *f*(*x*)?

(F) (G) (H) (J) (K)

**Correct Answer: F**

What is the largest integer value of t that satisfies the inequality ?

（A）30 （B） 19 （C） 18 （D） 10 （E） 8

**Correct Answer: B**

The circle below has an area of 64π cm^{2}. A central angle with measure 24° intercepts minor arc . What is the length of minor arc , in centimeters?

(F) π (G) π (H) (J) π (K) 192π

**Correct Answer: H**

### More ACT Math Exam Questions

- 1The sum of twice a smaller number and three times a larger number is 49. The larger of the two numbers exceeds four times the smaller number by 7. If x is the smaller number, which equation below determines the correct value of x?
- 2
In rectangle ABCD below, is 16 inches long and is 12 inches long. Points E, F, and G are the midpoints of , and respectively. What is the perimeter, in inches, of pentagon CDEFG?

- 3A sample of 300 jellybeans was removed from a barrel of jellybeans. All
of the jellybeans in the barrel are one of four colors: red, orange,
green, and purple. For the sample, the number of jellybeans of each
color is shown in the table below.
Color Number of jellybeans red 75 4Which real number satisfies (3 ^{x})(9) = 27^{2}?- 5If -1 < a < 0, -3 < b < -4, and c = a - b, then which of the following statements is true?