Decide whether the composite functions, f ? g and g ? f, are equal to x.f(x) = , g(x) = x

A. Yes, yes
B. No, no
C. Yes, no
D. No, yes


Answer: B

Mathematics

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Use percents, percent equations, and/or percent proportions to solve the application.A community college raises its tuition from $330 per course to  per course. What is the percent increase? Round to the nearest tenth of a percent, if necessary.

A.

93.3%

B.
6.3%

C. 6.7%
D.
93.7%

Mathematics

Divide.0.388 ÷ 97

A. 0.004 B. 0.0039 C. 0.005 D. 0.003

Mathematics

Convert the given equation to a rectangular equation.r = 

A. x2 - 6y - 9 = 0 B. y2 - 6x - 9 = 0 C. y2 + 6x - 9 = 0 D. x2 + 6y + 9 = 0

Mathematics

Let x be a number. Translate the English phrase or sentence into a mathematical expression.  55 decreased by a number

A. 55 - x B. 55 ÷ x C. x - 55 D. 55 + x

Mathematics