Find the derivative.y = 4 cos 2x
A. 2 sin 2x
B. -8 sin 2x
C. 8 sin 2x
D. -4 sin 2x
Answer: B
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Determine the coordinates of the focus and the equation of the directrix of the parabola.y2 - 16x = 0
A. F(4, 0), x = 4 B. F(0, 4), y = -4 C. F(4, 0), y = -4 D. F(4, 0), x = -4
Provide an appropriate response.The control center was suddenly unable to track the satellite when it reached a distance of 128,615 miles from the earth's surface. Write this whole number in word form.
A. One hundred twenty-eight thousand, six hundred fifteen B. Six hundred fifteen thousand, one hundred twenty-eight C. One hundred twenty thousand, eighty-six hundred, fifteen D. One hundred twenty-eight million, six hundred fifteen
Simplify the expression.5x + 8x
A. 26x B. 13x2 C. 40x D. 13x
What term of the arithmetic sequence is the given number?
, 
, 
, . . . ; 
A. 24 B. 25 C. 23 D. 21