Which of the following is a possible solution for x in terms of k for the equation 
?
(F) 
(G) 
(H) 
(J) 
(K) 
A 25-foot ladder stands against a vertical wall at an angle of ndegrees with the ground. If , how far is the base of the ladder from the wall?
(A) 12(B) 13(C) 14(D) 15(E) 16
Correct Answer: D
To increase the mean of 5 numbers by 3, by how much would the sum of the 5 numbers need to increase?
（A）3 （B） 6 （C） 9 （D） 15 （E） 18
Correct Answer: D
The measure of the sum of the interior angles of a regular n-sided polygon is (n - 2)180°. A regular octagon is shown below. What is the measure of the designated angle?
(A) 135° (B) 144° (C) 200° (D) 225° (E) 315°
Correct Answer: D
More ACT Math Exam Questions
- 1Two contractors bid on a job to build a brick wall in a yard. Contractor A charges a flat fee of $1,600 plus $2 per brick. Contractor B charges a flat fee of $400 plus $8 per brick. If x represents the number of bricks in the wall, which of the following equations could be solved to determine the number of bricks which would make B's charge to build the wall equal to A's charge?
- 2On an xy-graph, three corners of a parallelogram are located at (3, 3), (4, – 4), and (–2, –1). Which of the following points could be the remaining corner?
- 3
What is a possible value of xif
? - 4
The length, in inches, of a box is 3 inches less than twice its width, in inches. Which of the following gives the length, l inches, in terms of the width, w inches, of the box?
- 5
If f(x) = 7x2 - 9x + 4, then f(-3) = ?