State whether the given pair of expressions are like terms. If they are like terms, add them.4x7, 5x7, -7x7
A. Yes; 2x21
B. No
C. Yes; 2x7
D. Yes; -140x7
Answer: C
Mathematics
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Solve the problem.Find the volume interior to the inverted catenary kiln (an oven used to fire pottery) shown in the figure. Give an exact answer in terms of logarithms. 
A. 7(3 ln(3 + 
) - 
)
B. 14(3 ln(3 + 
) + 
)
C. 42 ln(3 + 
) - 
D. 14(3 ln(3 + 
) - 
)
Mathematics
Translate expression to a word phrase.
bc
What will be an ideal response?
Mathematics
Write the fraction and mixed number as a percent.
A. 720% B. 0.72% C. 72% D. 7.2%
Mathematics
Solve the problem.The period of vibration P for a pendulum varies directly as the square root of the length L. If the period of vibration is 2.5 sec when the length is 25 inches, what is the period when 
inches?
A. 3 sec B. 1.125 sec C. 3.5 sec D. 3.25 sec
Mathematics