Find the slope of the curve for the given value of x.y = x2 + 5x, x = 4
A. slope is 
B. slope is 13
C. slope is - 
D. slope is -39
Answer: B
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Solve the problem.Which of the following [A), B), C), or D)] can never be a negative number?
A. the median of a data set B. the mean of a data set C. the maximum value of a data set D. the standard deviation of a data set E. all of these can be negative numbers.
Combine like terms.-8z - (-3z)
A. -11z B. -5z C. 5z D. -5z2
Write a word name for the number in the sentence.The control center was suddenly unable to track the satellite when it reached a distance of 128,615 miles from the earth's surface.
A. One hundred twenty thousand, eighty-six hundred, fifteen B. Six hundred fifteen thousand, one hundred twenty-eight C. One hundred twenty-eight thousand, six hundred fifteen D. One hundred twenty-eight million, six hundred fifteen
Find the perimeter. Use 3.14 for ? when needed.
A. 20.56 cm B. 6.28 cm C. 12.56 cm D. 16.56 cm