Solve.The relationship between  and  degrees of measuring temperature is linear. Find an equation relating  and  if  corresponds to 

style="vertical-align: -4.0px;" /> and  corresponds to  Use the equation to find the Celsius measure of 



A. C = F - ;   °C
B. C = F - 10;   °C
C. C = F - 80; -  °C
D. C = F + ;   °C

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Answer: A

Mathematics

Find the absolute and relative errors.The true distance from your home to your office is 34.8 miles but your odometer reads 35.9 miles.

A. absolute error: 1.1 miles relative error: 3.2% B. absolute error: -1.1 miles relative error: -3.2% C. absolute error: 1.1 miles relative error: 3.1% D. absolute error: 1.1 miles relative error: 0.3%

Use the graph of the function f(x) to locate the local extrema and identify the intervals where the function is concave up and concave down.

A. Local minimum at x = 1; local maximum at x =-1; concave down on (0, ?); concave up on (-?, 0) B. Local maximum at x = 1; local minimum at x =-1; concave up on (0, ?); concave down on (-?, 0) C. Local maximum at x = 1; local minimum at x =-1; concave up on (-?, ?) D. Local minimum at x = 1; local maximum at x =-1; concave up on (0, ?); concave down on (-?, 0)

For the pair of functions, perform the indicated operation.f(x) = , g(x) = Find (f ? g)(x).

A. (2x + 5)(25x - 16)
B. (2x + 5)(5x - 4)
C. ()()
D. (5x - 4)()

Find the constant of proportionality k, and write the linear function relating the two variables.Suppose that y varies directly with x. When x = 6, then y = 54.

A. k = 48; y = x + 48
B. k = 6;y = 6x
C. k = ; y = x
D. k = 9; y = 9x