Simplify the expression.
÷ 
A. 
B. (z - 1)(z + 2)
C. 
D. 
Answer: D
Mathematics
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Solve the problem. Use 3.14 as the approximate value of ?. Round to the nearest tenth unless instructed otherwise.A cylindrical drain pipe is 5 in. across the top and about 11 in. high. How many cubic inches of water could it hold?
A. 863.5 in.3 B. 431.8 in.3 C. 215.9 in.3 D. 345.4 in.3
Mathematics
Find an equation of variation in which the following are true.y varies directly as x and inversely as z, and y = 10 when x = 2 and z = 4.
A. y = 
B. y = 23xz
C. y = 
D. y = 
Mathematics
Perform the indicated operations.
? 
A. 
B. 
C. 
D. 
Mathematics
Evaluate the expression.
A. 6
B. 0
C. 1
D. 
Mathematics