Choose the letter that best answers the question.
Question.54. The perimeter of triangle BCD is 14. What is its area?
A. 8
B. 10
C. 12
D. 20
E. 24
Answer: (d)
Question.55. What is the slope of the line that contains the points (1, 3) and (4, -3)?
A. -2
B. -0.5
C. 1
D. 2
E. 3
Answer: (a)
Question.56. The price of corn rose 20% two years ago and 15% last year. What is the combined percent increase in price?
A. 5%
B. 17.5%
C. 25%
D. 35%
E. 38%
Answer: (e)
Question.57. Solve: 161/2 + x1/3
A. 4+3√x
B. 8+3x
C. 4-x3
D. 8-x3
E. 4-3√x
Answer: (a)
Question.58. Find x+y
-3x-2y=14
4y+5x=10
A. 8
B. 10
C. 12
D. 24
E. 36
Answer: (c)
Question.59. What is the minimum value of the function f(x)=x2+2?
A. 1
B. -2
C. 2
D. -3
E. 3
Answer: (c)
Question.60. A copy machine can create 18 copies in 30 seconds. How many copies will it create in 215 seconds?
A.126
B.129
C.134
D.139
E.146
Answer: (b)