Find an equation for the line tangent to the curve at the point defined by the given value of t.x = t, y = , t = 8

A. y = x
B. y = - x
C. y = x + 2
D. y = - x - 2


Answer: C

Mathematics

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Solve.Jim can run 5 miles per hour on level ground on a still day. One windy day, he runs 10 miles with the wind, and in the same amount of time runs 6 miles against the wind. What is the rate of the wind?

A. 1 mph
B. 2 mph
C. 20 mph
D. 5 mph

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Find the cofactor of the indicated element.a12

A. -9 B. 9 C. 6 D. -19

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Solve the inequality. Give your answer using interval notation.3 +  > 4

A. No solution
B.
C.  ? 
D.  ? 

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Find the exact value of  without using a calculator.

A. 5 B. 2.5 C. 1.25 D. 2 E. 3

Mathematics