Find the value of cos A if angle A is acute and sin A = 7/10
What is the sum of the 2 solutions of the equation x2 + 5x - 24 = 0?
(A) -24(B) -8(C) -5(D) 0(E) 5
Correct Answer: C
For which of the following values of a will there be exactly one real solution to the equation 2x2 - ax + 8 = 0?
（A）2 （B） 4 （C） 4 （D） 6 （E） 8
Correct Answer: E
Given the equation - x + 6y = 18, which of the following equations is perpendicular to the given equation?
（A） （B） （C） （D） y = -10x + 1 （E） y = 10x + 18
Correct Answer: D
More ACT Math Exam Questions
- 1What is the least common multiple of 3, 4a, 5b, and 6ab?
If , then n! =?
The percent P of a population that has completed 4 years of college is given by the function P(t) = -0.001t2 + 0.4t where t represents time, in years. What percent of the population have completed four years of college after 20 years, to the nearest tenth?
- 4Antoine bought a new electric guitar that cost $588.60 after 9% sales tax was added. What was the price of the guitar without tax?
- 5In the figure below, m ∠WYZ = 28° and bisects ∠ZYX. Which of the following is the measure of ∠XYM?