Find the equation of the tangent line to the curve when x has the given value.f(x) = 5x2 + x; x = -4
A. y = 
+ 
B. y = 13x - 16
C. y = - 
+ 
D. y = -39x - 80
Answer: D
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Solve the problem. Unless stated otherwise, assume that the projectile flight is ideal, that the launch angle is measured from the horizontal, and that the projectile is launched from the origin over a horizontal surfaceAn ideal projectile is launched from the origin at an angle of ? radians to the horizontal and an initial speed of 
Find the position function r(t) for this projectile.
A. r(t) = (175t sin ? - 16t2)i + (175t cos ?)j B. r(t) = (175t sin ?)i + (175t cos ? - 16t2)j C. r(t) = (175t cos ? - 32t2)i + (175t sin ?)j D. r(t) = (175t cos ?)i + (175t sin ? - 16t2)j
Solve using the division principle.3b = -45
A. 1 B. 48 C. -15 D. -48
Fill in the blank using the word product, sum, quotient, or difference.The formula sin ? sin ? = 
[cos (? - ?) - cos (? + ?)] can be used to change a 
of two sines into the 
of two cosine expressions.
A. product, sum B. quotient, sum C. product, difference D. quotient, difference
Provide an appropriate response.If y = 
, use logarithmic differentiation to find y'.
What will be an ideal response?