Evaluate the expression, if possible.815/4

A. 2187
B. 6561
C. 19,683
D. 243

Answer: D

Mathematics

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Translate the sentence to an equation using the variable x. Then solve the equation.4 times a number equals 10 less than 5 times the number.

A. 4x = 5x - 10; 10
B. 4x - 10 = 5x; - 10
C. 4x = 10 - 5x; 
D. 4x = 10 - 5; 

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Mathematics

Express the number in terms of i.-

A. -5i
B. 5i
C.  i
D. - i

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Mathematics

Find a formula for the inverse of the function described below.32° Fahrenheit = 0° Celsius. A function that converts temperatures in Celsius to those in Fahrenheit is   .

A. f-1(x) = x + 32
B. f-1(x) = x + 32
C. f-1(x) = (x + 32)
D. f-1(x) = (x - 32)

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Mathematics

Find a polynomial that represents the area of the figure.

A. 21s7
B. 21s12
C. s12
D. s7

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Mathematics