Solve the problem.Assume that the sales of a certain appliance dealer are approximated by a linear function. Suppose that sales were $7500 in 2007 and $56,500 in 2012. Let x = 0 represent 2007. Find the equation giving yearly sales y.
A. S(x) = 9800x + 56,500
B. S(x) = 49,000x + 7500
C. S(x) = 49,000x + 56,500
D. S(x) = 9800x + 7500
Answer: D
Mathematics
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Use reduction formulas to evaluate the integral.
A. - 
sin 4x cos2 4x + 
+ 
sin 8x + C
B. - 
sin 4x cos3 4x + 
+ 
sin 8x + C
C. - 
sin 4x cos3 4x + 
+ 
cos 8x + C
D. - 
sin 4x cos3 4x + 
+ 
sin 8x + C
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Multiply the conjugates.(3
- 2
)(3
+ 2
)
A. 37
B. 53 + 12
C. 53
D. 11
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Find projwv.
; 
A. - 
i - 
j
B. - 
i - 
j
C. - 
i + 
j
D. - 
i - 
j
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Evaluate.If f(x) = 2x + 10 and g(x) = x2 + 3, evaluate 
(2).
A. 98
B. 21
C. 
D. 2
Mathematics