Use implicit differentiation to find dy/dx and d2y/dx2.y2 - x2 = 9
A. 
= - 
; 
= 
B. 
= 
; 
= 
C. 
= 
; 
= 
D. 
= 
; 
= 
Answer: B
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Find the convergence set for the given power series. Hint: First find a formula for the nth term; then use the Absolute Ratio Test.1 + 9x + 
+ 
+ 
+ . . .
A. -9 ? x ? 9 B. -1 ? x ? 1 C. -1 < x < 1 D. All x
Find the x-intercepts of the function.f(x) = (x2 - 13x)2 + 14 (x2 - 13x) - 480
A. (-30, 0), (16, 0) B. (10, 0), (3, 0) C. (30, 0), (-16, 0) D. (-10, 0), (-3, 0), (2, 0), (-8, 0)
Decide if the expression is factored.8(m - 9) + n(m - 9)
A. Yes B. No
Solve the problem.The motion of a projectile that is fired at a 30° angle with the horizontal is given by x = v0
t, 
for t in 
Suppose a projectile is fired with an initial velocity of 350 feet per second at an angle of 30° with the horizontal. Find (a) the time when it strikes the ground and (b) the range (horizontal distance covered).
A. (a) 10.9 sec (b) 3315 ft B. (a) 5.5 sec (b) 1658 ft C. (a) 21.9 sec (b) 6631 ft D. (a) 18.9 sec (b) 3315 ft