When 
, which of the following must be true?
(F) -12 < x < -3
(G) -3 < x < 0
(H) 0 < x < 3
(J) 3 < x < 4
(K) 4 < x
What value must be added to 9x2 - 30x in order to complete the square (that is, make it a perfect square trinomial)?
（A）-5 （B） 5 （C） 9 （D） 25 （E） 45
Correct Answer: D
The circumference of a circle is 50 inches. How many inches long is its radius?
(F) 
(G) 
(H) 
(J) 50π
(K) 100π
Correct Answer: F
A rectangular solid consisting of 18 smaller cubes that are identical is positioned in the standard (x,y,z) coordinate system, as shown below. Vertex M has coordinates of (-1,3,0) and point O on the y-axis has coordinates of (0,3,0). What are the coordinates of vertex N?
(F) (3,0, 2) (G) (2,2, 0) (H) (3,0,-1) (J) (0,2, 2) (K) (2,0, 2)
Correct Answer: K
More ACT Math Exam Questions
- 1What is the value of the expression (y - x)3 when x = 5 and y = 1?
- 2For all
is equivalent to: - 3A 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?
- 4On 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?
- 5
In cubic meters, what is the volume of a large cube whose edges each measure 6 meters in length?