The trapezoid below is divided into 2 triangles and 1 rectangle. Lengths are given in centimeters. What is the combined area, in square centimeters, of the 2 shaded triangles?
The ratio of three sides of a triangle is 16:19:28. If the length of the short side of a similar triangle is 20, what is the length of the longest side of the similar triangle?
(A)29 (B)31 (C)32 (D)33 (E)35
Correct Answer: E
The number of fish, p, a small pond can sustain varies inversely with the square root of the amount of predators, q, in the pond. If a pond with 49 predators can sustain a population of 800 fish, how many fish could a pond with 100 predators sustain?
（A）560 （B） 600 （C） 650 （D） 1,600 （E） 2,000
Correct Answer: A
Which of the following expressions represents the product xy, if x = 4a3 and y = -3a5 + b?
（A）a3 + b （B） a5 + b （C） -12a8 + 4a3b （D） -12a15 + 4a3b （E） -243a15 + 4a3b
Correct Answer: C
More ACT Math Exam Questions
What is the value of 4 + 3x – y when x = 3 and y = -1?
- 2If x = -3 and y = 2, then x3y + xy3 = ?
- 3Which of the following is (are) equivalent to the mathematical operation a(b - c) for all real numbers a, b, and c? I. ca - ba II. ab - ac III. (b - c)a
- 4A line in the standard (x, y) coordinate plane has a slope of and passes through points (3,4) and (t,-2). What is the value of t?
Which of the following trigonometric functions has an amplitude of 3?
(Note: the amplitude of a trigonometric function is the nonnegative difference between the maximum and minimum values of the function.)