Solve.A contractor finds that it takes Julie 11 hours to construct a wall of a certain size. It takes Leann 8 hours to construct the same wall. How long would it take if they worked together?
A. 1 hr
B. 
hr
C. 19 hr
D. 4
hr
Answer: D
Mathematics
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Find the point(s) at which the given function equals its average value on the given interval.f(x) = 
; [0, 12]
A. 6
B. 5
C. 
D. 7
Mathematics
If the following defines a one-to-one function, find its inverse. If not, write "Not one-to-one." 
A. Not one-to-one
B. 
C. 
D. 
Mathematics
Provide an appropriate response.If $4,200 is invested at an annual rate of 5.4% compounded monthly for 10 years, find the compound amount.
What will be an ideal response?
Mathematics
Perform the division and write the answer without using negative exponents.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics