What is the determinant of the matrix 
?
(F) 0
(G) 12
(H) |0|
(J) |6|
(K) |12|
In the circle below, radius 
has a length of 10 meters, and central angle ∠AOB measures 30°. What is the area, in square meters, of shaded sector AOB?
（A）
（B） 
（C） 
（D） 
（E） 
Correct Answer: E
(4x4 y4)4 is equivalent to:
（A）xy （B） 16x8 y8 （C） 16x16 y16 （D） 256x8 y8 （E） 256x16 y16
Correct Answer: E
Lines 
and 
intersect at point V on line 
, as shown in the figure below. The measures of 2 angles are given in terms of a, in degrees. What is the measure of 
XVZ in degrees?
（A）30 （B） 90 （C） 120 （D） 150 （E） 180
Correct Answer: C
More ACT Math Exam Questions
- 1Which of the following expressions is equivalent to 2a + 4b + 6c?
- 2
What is the sum of the 2 solutions of the equation x2 + 5x - 24 = 0?
- 3
In the following figure, the circle centered at nhas a radius of 4. What is the area of the shaded region?
- 4
If a + 3b = 27 and a - 3b = 9, then b = ?
- 5
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?
