The total worldwide box-office receipts for a long-running movie are approximated by the function 
, where 
is measured in millions of dollars and x is the number of years since the movie's release. How fast are the total receipts changing 1 yr, 3
yr, and 5 yr after its release?
?
A. 
, 
, 
B. 
, 
, 
C. 
, 
, 
D. 
, 
, 
E. 
, 
, 
Answer: E
Mathematics
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Calculate the derivative of the function. Then find the value of the derivative as specified.
t =3 if r = 
A. 
= 
; 
t =3
= 
B. 
= - 
; 
t =3
= - 
C. 
= 
; 
t =3
= 
D. 
= - 
; 
t =3
= - 
Mathematics
Given p is true, q is true, and r is false, find the truth value of the statement.(~p ? ~q) ? (p ? ~r)
A. False B. True
Mathematics
Find the equation of a line passing through the given points. Solve the equation for y.(9, -57) and (-2, 9)
A. y = - 
x - 
B. y = -6x - 3
C. y = 6x - 111
D. y = 
x - 
Mathematics
Write as an equivalent addition statement. (Do not evaluate.)-23 - 20
A. -43 B. 20 + (-23) C. -23 + (-20) D. -23 + 20
Mathematics