Translate the statement into an equation. Let x represent the unknown number. DO NOT SOLVE.Four times a number added to 9 times the number equals 39.
A. 4x - 9x = 39
B. 4(x + 9) = 39x
C. 4x(9 + x) = 39
D. 4x + 9x = 39
Answer: D
Mathematics
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A. R = {3, 5, 13, 16} B. R = {2, 19} C. R = {2, 7, 10, 19} D. R = {3, 5, 13, 16, 2, 7, 10, 19} E. R = {3, 16}
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Find the limit, if it exists.
A. -1 B. 1 C. 0 D. Does not exist
Mathematics
Find the polar equation of the given rectangular equation.y2 = 16x
A. r2 = 16 csc ? cot ? B. r = 16 csc ? cot ? C. r = 16 sec ? tan ? D. r2 = 16 sec ? tan ?
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Suppose that the functions f and g and their derivatives with respect to x have the following values at the given values of x. Find the derivative with respect to x of the given combination at the given value of x.
1/f2(x), x = 4
A. 
B. - 
C. 
D. - 
Mathematics