Find the reference angle for the given angle.407°

A. 137°
B. 47°
C. 43°
D. 133°


Answer: B

Mathematics

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Evaluate the derivative at the given value of x.y = -3x2 + 5x; x = 7

A. -22 B. -147 C. -7 D. -37

Mathematics

Use Pythagorean identities to find the indicated function value.tan ? = -6, 90° < ? < 180°; find sec ?

A. -7
B. -5
C. -
D. -

Mathematics

Determine the degree and the coefficient of the monomial.40k2m2

A. Degree 4, coefficient 40 B. Degree 2, coefficient 0 C. Degree 2, coefficient 1 D. Degree 40, coefficient 40

Mathematics

Solve the exponential equation. 4x + 4 = 46 - x 

A. 0 B. 256 C. 2 D. 1

Mathematics