The lengths of 2 sides are not given in the polygon below. If each angle between adjacent sides measures 90°, then, in meters, what is the perimeter of the polygon?
(F) 75
(G) 90
(H) 95
(J) 400
(K) 450
What is the equation for a line that intersects the origin and is perpendicular to 2x– 4y= 13?
(A) y= –2(B) y= 2x(C) y= –2x(D) 
(E) 
Correct Answer: C
In the standard (x,y) coordinate plane below, the base of a right triangle lies along the x-axis and is bisected by the y-axis. The vertex of the angle opposite the base is on the graph of the parabolic function f(x) = 2x2 - 4. Let b represent any value of x such that -
< x < 0. Which of the following is an expression in terms of b for the area, in square coordinate units, of any such right triangle?
(A) 4b4 - 16b2 + 16 (B) 4b3 - 8b (C) 2b3 - 4b (D) 2b2 + b - 4 (E) b2 - 4b + 4
Correct Answer: C
What is the value of x if x2– 5x– 14 = 0 and x> 0?
(F) 2(G) 4(H) 5(J) 7(K) 9
Correct Answer: J
More ACT Math Exam Questions
- 1
The kinetic energy, KE, of an object travelling at v velocity can be modeled by the equation KE =
mv2, where m
is the mass of the object. If an object is moving at a velocity of 9,
and it has a kinetic energy of 120, about how great is the object's
mass? - 2If the lengths of the sides of the triangle below are shown in inches, how many inches long is side
?
- 3
A recent survey of book critics asked 30 critics how many stars out of a possible 5 they gave to a recent novel from a popular author. The 30 critics' responses are summarized by the histogram below.
To the nearest hundredth, what is the average star review for the 30 reviews?
- 4
If pq+ 12 = 3p+ pr,and q– r= 7, what is the value of p?
- 5
If
, then n=