Find the product.(3x - 7)(3x + 7)
A. 9x2- 42x - 49
B. 9x2 - 49
C. 9x2 + 42x - 49
D. 3x2 + 42x - 49
Answer: B
Mathematics
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Find the derivative.s = t6 cos t - 12t sin t - 12 cos t
A. 
= - t6 sin t + 6t5 cos t - 12t cos t
B. 
= - t6 sin t + 6t5 cos t - 12t cos t - 24 sin t
C. 
= - 6t5 sin t - 12 cos t + 12 sin t
D. 
= t6 sin t - 6t5 cos t + 12t cos t
Mathematics
Solve the equation for the indicated variable.
+ 
= 
for S (mirror equation)
A. S = 
B. S = 
C. S = 
D. S = 
Mathematics
Multiply.(8x4y)(-4x6y5)
A. -32x10y5 B. -32x10y6 C. -32x24y5 D. 32x10y5
Mathematics
Graph the line having slope m and containing the given point. Do not find the equation of the line.m = - 
, (4, 5)
A. 
B. 
C. 
D. 
Mathematics