Find the product and write the result in standard form.-2i(7i - 4)
A. 8i - 14i2
B. -14 + 8i
C. 14 + 8i
D. 8i + 14i2
Answer: C
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Solve the problem.A conical tank is resting on its apex. The height of the tank is 
, and the radius of its top is 
. The tank is full of gasoline weighing
How much work will it take to pump the gasoline to the top? Give your answer to the nearest ft ? lb.
A. 412,240 ft ? lb B. 137,413 ft ? lb C. 11,130,474 ft ? lb D. 15,268 ft ? lb
Simplify using order of operations.28 ÷ (-7) - 4 ÷ (-2)
A. -6 B. 6 C. 2 D. -2
Write the algebraic expression described. Simplify if possible.A 52-centimeter piece of rope is cut into two pieces. If one piece is z centimeters long, express the other length as an algebraic expression in z.
A. (z + 52) cm B. (z - 52) cm C. (52 - 2z) cm D. (52 - z) cm
Find the domain and range of the function graphed.
A. domain: (-?, ?); range: (-?, ?) B. domain: (-?, ?); range: (-?, -1) ? (-1 ?) C. domain: {-1}; range: (-?, ?) D. domain: (-?, -1) ? (-1, ?); range: (-?, ?)