An isosceles triangle contains three angles that measure 40°, x°, and y°. Which of the following CANNOT be true?
(A) x= y
(B) x= 50
(C) x– y= 60
(D) x= 70
(E) x= 100
The Correct Answer
Explanation
What is x, the second term in the geometric series 
+ x + 
+ 
+ ... ?
(Note: In a geometric series the ratio of any term to the following term is constant.)
(A)
(B)
(C)
(D)
(E)
Correct Answer: C
If 
,what is the value of a– b?
(A) 1(B) –1(C) 2(D) 
(E) 
Correct Answer: D
In ΔXYZ, 
Y is a right angle and Z measures less than 52°. Which of the following phrases best describes the measure of X?
(A) Greater than 38°(B) Equal to 38°(C) Equal to 45°(D) Equal to 142°(E) Less than 38°
Correct Answer: A
More ACT Math Exam Questions
- 1
For all x > 8,
= ? - 2A sensor records a piece of data every .0000000038 seconds. The sensor will record 100,000,000,000 pieces of data in how many seconds?
- 3In the real numbers, what is the solution of the equation 9x-4 = 273x + 2?
- 4In the standard coordinate plane, what is the distance between the points (5, 7) and (13, 11)?
- 5
If
, then n =