Find the square root if it is a real number, or state that the expression is not a real number.- 
A. -13
B. 13
C. not a real number
D. -84
Answer: A
Mathematics
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Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = (7x + 3)x
A. ln (7x + 3) + 
B. (7x + 3)x
C. (7x + 3)x
D. x ln (7x + 3)
Mathematics
Find the average rate of change for the function between the given values.f(x) = x3 + x2 - 8x - 7; from 0 to 2
A. -2
B. - 
C. -28
D. 
Mathematics
Find all the factors of the number.42
A. 1, 2, 3, 6, 7, 14, 28, 42 B. 7, 6, 14, 42 C. 1, 2, 3, 6, 7, 14, 21, 42 D. 1, 7, 6, 42
Mathematics
Find the product.(3x + 1)(x + 10)
A. 3x2 + 30x + 10 B. x2 + 10x + 31 C. x2 + 31x + 30 D. 3x2 + 31x + 10
Mathematics