## If 2 is a solution of the equation x^{2} + kx + 12 = 0, what does k equal?

(A)-12

(B) -8

(C) -2

(D) 6

(E) 8

The Correct Answer

Which of the following statements is NOT true about the arithmetic sequence 16, 11, 6, 1, … ?

（A）The fifth term is -4. （B） The sum of the first 5 terms is 30. （C） The seventh term is -12. （D） The common difference of consecutive integers is -5. （E） The sum of the first 7 terms is 7.

**Correct Answer: C**

If the solutions to the equation (x + a)(x + b) = 0 are x = 8 and x = -, then a + b = ?

（A）-13 （B） -12 （C） -6.5 （D） 6.5 （E） 12

**Correct Answer: C**

What is the area, in square inches, of a circle with a diameter equal to 12 inches?

（A）144 （B） 36 （C） 12π （D） 36π （E） 144π

**Correct Answer: D**

### More ACT Math Exam Questions

- 1A circle in the standard (x, y) coordinate plane has center (-4,5) and radius 5 units. Which of the following equations represents this circle?
- 2Which of the following comprises all of the values of x for which ?
- 3Steve is going to buy an ice-cream sundae. He first must choose 1 of 3 possible ice-cream flavors. Next, he must choose 1 of 2 types of syrup. Finally, he must choose 1 of 6 kinds of candy toppings. Given these conditions, how many different kinds of sundaes could Steve possibly order?
- 4In the standard (x, y) coordinate plane, the center of the circle shown below lies on the y-axis at y = 3. If the circle is also tangent to the x-axis, then what is the equation of the circle?
- 5A guide wire for a telephone tower makes an angle of 50° with the level ground and is 14 meters from the base of the tower. How many meters long is the guide wire?