Find the exact value of the trigonometric function.cos

A. -
B. -
C.
D.

Answer: D

Mathematics

Solve by the substitution method. x + 6y = 367x + 7y = 42

A. (-6, 0) B. (36, 42) C. (0, 6) D. (1, 5)

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Mathematics

Give the quadrant containing the point in the graph. If a point is on an axis, name the axis.

A. QIII B. x-axis C. QII D. QI

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Mathematics

Find an equivalent equation in rectangular coordinates.r - 3 sin ? = 3 cos ?

A. - 3y = 3x
B. x² + y² - 3y = 3x
C. x² + y² + 3y = 3x
D. x² + y² = 0

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Mathematics

Find a simplified difference quotient for the function.f(x) = x3 + x

A. 2x3 + 3x2 + 3xh + h2 + 1 B. 2x3 + 3x2 + 3xh + h2 C. 3x2 + 3xh + h2 + h D. 3x2 + 3xh + h2 + 1

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Mathematics