Solve.Mark's typing speed is 79 words per minute. How many words can he type in 56 minutes?
A. 4324 words
B. 135 words
C. 4424 words
D. 4434 words
Answer: C
Mathematics
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Solve by the substitution method. 3x - 13 = -y2x + 9y = -8
A. {(-5, -2)} B. {(-5, 2)} C. {(5, 2)} D. {(5, -2)}
Mathematics
Find the exact value of x.cos-1 x = csc-1 
A. 
B. 
C. 
D. 
Mathematics
Replace the polar equation with an equivalent Cartesian equation.r2 + 2r2 sin ? cos ? = 100
A. x + y = ±10 B. x2 + 3y2 = 100 C. x2 + y2 = 100 D. x + y = 10
Mathematics
Solve for x in the proportion. If possible, reduce the known fraction first.
= 
A. x = 6 B. x = 3 C. x = 4 D. x = 5
Mathematics