Find the reference angle for the given angle.-7.5°

A. 7.5°
B. 8°
C. 82.5°
D. 83°


Answer: A

Mathematics

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Find the limit L for the given function f, the point x0, and the positive number ?. Then find a number ? > 0 such that, for all x, f(x) = -5x + 9, x0 = -5, ? = 0.1

A. L = 34; ? = 0.03 B. L = 34; ? = 0.02 C. L = 16; ? = 0.02 D. L = -16; ? = 0.03

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Use logarithmic differentiation to find the derivative of y.y = 

A. (lnx - ln(x + 4))
B.
C. 2
D.

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Solve the problem.The March 1 unpaid balance in an account was $190. On March 7, a payment of $75 was made. The finance charge rate was 1.7% per month of the average daily balance. Find the new balance at the end of March.

A. $137.02 B. $116.70 C. $117.14 D. $117.20

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Choose the most reasonable unit of measure.Hammer length: 38  (mm, cm, m, km)

A. cm B. km C. m D. mm

Mathematics