Find dy.y = sin(4x2)
A. -8x cos(4x2) dx
B. 8 cos(4x2) dx
C. 8x cos(4x2) dx
D. -8 cos(4x2) dx
Answer: C
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Write the equation of the graph in its final position.The graph of y = x2 is vertically stretched by a factor of 4, and the resulting graph is reflected across the x-axis.
A. y = 4(x - 4)x2 B. y = -4x2 C. y = (x - 4)2 D. y = 4x2
Write the product using exponential notation.5 ? 5 ? 5 ? 5
A. 45 B. 20 C. 52 D. 54
Multiply.8x3(-9x5 + 9x4)
A. -72x8 + 9x4 B. -72x8 - 72x7 C. -72x8 + 72x7 D. -72x2 + 72x
Solve the problem.An object is thrown upward from the top of a 
building with an initial velocity of 48 feet per second. The height h of the object after t seconds is given by the quadratic equation 
When will the object hit the ground?
A. -2 sec B. 5 sec C. 2 sec D. 160 sec