Simplify the expression by combining like terms, if possible.-8(4x + 5y) + 10(8x + 5y)
A. -72xy
B. 48x + 5y + 5
C. 48x + 10y
D. -4x + 10y
Answer: C
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Identify the type of surface represented by the given equation. y2 + z2 = 10
A.
| Paraboloid |
B.
| Cylinder |
C.
| Ellipsoid |
D.
| Parabolic cylinder |
Solve the problem.If a rocket is propelled upward from ground level, its height in meters after t seconds is given by 
During what interval of time will the rocket be higher than 117.6 m?
A. 3 < t < 4 B. 4 < t < 6 C. 0 < t < 3 D. 6 < t < 7
Give the inverse operation for the statement. Then write a function f for the given statement and a function g for its inverse operation.Divide x by 7 and then add 14 to the result.
A. Subtract 14 from x and multiply the result by 7; f(x) = 
+ 14; g(x) = 7(x - 14)
B. Subtract 14 from x and divide the result by 7; f(x) = 
+ 14; g(x) = 
C. Subtract 7 from x and multiply the result by 14; f(x) = 
+ 7; g(x) = 14(x - 7)
D. Subtract 7 from x and divide the result by 14; f(x) = 
+ 7; g(x) = 
Perform the indicated operation. Assume that all variables are nonnegative.
+ 
A. 49
B. 2
C. 7
D. 