Find the slope of the line tangent to the curve at x.y = -7x2 + 5x; x = 11
A. -363
B. -149
C. -99
D. -124
Answer: B
Mathematics
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Find the derivative.f(x) = 3x4 + 7x3 - 8
A. 3x3 + 7x2 B. 12x4 + 21x3 - 8 C. 12x3 + 21x2 - 8 D. 12x3 + 21x2
Mathematics
Solve the system by the addition method.x2 + y2 = 44x2 + 16y2 = 64
A. {(0, 4), (0, -4)} B. {(4, 0), (-4, 0)} C. {(0, 2), (0, -2)} D. {(2, 0), (-2, 0)}
Mathematics
Solve the formula for the specified variable.
+ 
= c for b
A. b = 
B. b = 
C. b = 
- a
D. b = ac - 
Mathematics
Factor completely.98x2 - 112xy + 32y2
A. 2(7x - 4y)2 B. 2(49x2 - 56xy + 16y) C. 2(7x + 4y)(7x - 4y) D. (14x - 8y)(7x - 4y)
Mathematics