Find the slope of the polar curve at the indicated point.r = 7(1 + cos?), ? = 
A. -2
B. 0
C. 3
D. 
Answer: B
Mathematics
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Calculate the flux of the field F across the closed plane curve C.F = (x+y)i + xyj; the curve C is the closed counterclockwise path around the rectangle with vertices at 
and 
A. 
B. 
C. - 
D. 30
Mathematics
Find the exact value of the product.cos 45° cos 15°
A. 
B. 
C. 
D. 
Mathematics
Use completing the square to rewrite the equation in one of the standard forms for a conic and identify the conic.5x2 - 7y2 - 10x + 56y - 142 = 0
A. (x - 4)2 + (y - 1)2 = 35; circle
B. (x - 1)2 + (y - 4)2 = 35; circle
C. 
+ 
= 1; ellipse
D. 
- 
= 1; hyperbola
Mathematics
Find the quotient and the remainder.x2 + 10x + 16 divided by x + 4
A. x + 6; remainder 8 B. x + 6; remainder -8 C. x + 7; remainder 0 D. x + 6; remainder 0
Mathematics