Math & Science ACT Workuot

(Marvins-Underground-K-12) #1

  1. If the first four terms of a geometric sequence are 10, 15, 22.5, and 33.75, what is the fifth term in the sequence?


A. 35
B. 50.625
C. 56.25
D. 70.625
E. 75


  1. The total surface area of a cube is 54 square inches. What is the volume, in cubic inches, of the cube?


F.              9
G. 18
H. 27
J. 81
K. 729


  1. In the figure below, a region of a circle with a radius of 5 is shown shaded. The area of the shaded region is 15π. What is the measure
    of the central angle of the shaded region?


A. 72°

B. 144°

C. 215°

D. 216°

E. 315°


  1. Which of the following equations represents the graph of a circle with center (2,−6) and radius 4 coordinate units in the standard (x,y)
    coordinate plane?


F. (x   −   2)^2    +   (y  +   6)^2    =   4
G. (x + 2)^2 + (y − 6)^2 = 4
H. (x − 2)^2 + (y − 6)^2 = 16
J. (x − 2)^2 + (y + 6)^2 = 16
K. (x + 2)^2 + (y − 6)^2 = 16


  1. In ΔXYZ, the value of X is 53°, the value of Y is 88°, and the length of YZ is 11 inches. Which of the following is an expression for
    the length, in inches, of XZ?


(Note:  The law of  sines   states  that    for any triangle,   the ratios  of  the lengths of  the sides   to  the sines   of  the angles  opposite    those   sides
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