Solve the problem.The model of a building has the shape of a rectangular solid. The height is represented by x inches. The base of the model is square and the volume of the model is 
Express the area of the model's base in terms of x.
A. x2 - 400 square inches
B. (x + 20)(x - 20) square inches
C. (x - 20)2 square inches
D. 40x square inches
Answer: C
Mathematics
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Add or subtract as indicated.-66.44 - 111.72
A. -178.16 B. 178.16 C. 45.28 D. -45.28
Mathematics
Determine whether the relation is or is not a function.
A. Function B. Not a function
Mathematics
Write an equivalent numerical expression and evaluate.8 added to the sum of -15 and 12
A. 8 + [(-15) + 12]; 5 B. 8 + 12 - 15; 19 C. -8 - 15 - 12; -35 D. 8 + 15 + 12; 35
Mathematics
Factor completely. If the polynomial is prime, so state.60x3 - 55x2 + 10x
A. x(20x - 5)(3x - 2) B. x(4x - 1)(15x - 10) C. 5(4x2 - 1)(3x - 2) D. 5x(4x - 1)(3x - 2)
Mathematics