Home ACT Math ACT English PE Exam CPA IELTS Contact Us

Home->ACT Math

The centers of 3 identically sized circles lie on the diameter of a larger circle, as shown in the figure below. Each of the 4 circles is tangent to 2 other circles, as shown. If the circumference of each small circle is 8π inches, what is the circumference of the largest circle, in inches? image

(A)16π

(B) 24π

(C) 48π

(D) 64π

(E) 144π

The Correct Answer

If 3(2x - 1) = 11x + 27, then x = ?

(A)-6 (B) -2 (C) 2 (D) 6 (E) 7

Correct Answer: A

The perimeter of a square is 36 inches. What is the area of the square, in square inches?

(F) 6 (G) 9 (H) 18 (J) 36 (K) 81

Correct Answer: K

In the complex numbers, where , the conjugate of any value a + bi is abi.What is the result when you multiply 2 + 7i by its conjugate?

(A) 45(B) –45(C) 45i(D) 53(E) 53i

Correct Answer: D

More ACT Math Exam Questions