Solve the problem.The force in newtons needed to stretch a certain spring x centimeters from its resting position is given by the polynomial function 
where 8 is the spring constant. Find the force needed to stretch the spring 6 centimeters.
A. 288 newtons
B. 96 newtons
C. 36 newtons
D. 48 newtons
Answer: A
Mathematics
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Use implicit differentiation to find dy/dx.xy + x + y = x2y2
A. 
B. 
C. 
D. 
Mathematics
Factor the trinomial.36 - 13x + x2
A. (x - 4)(x - 9) B. (x - 4)(x + 9) C. (x - 36)(x - 1) D. (x + 4)(x + 9)
Mathematics
Find the maximum profit P (in dollars) given that
?
?
A. $40,050 B. $13,350 C. $27,000 D. $26,700 E. $27,150
Mathematics
Solve the problem.The owner of a video store has determined that the profits P of the store are approximately given by 
where x is the number of videos rented daily. Find the maximum profit to the nearest dollar.
A. $625 B. $1250 C. $1312 D. $687
Mathematics