Determine the reference angle for the given angle.? = 

A.
B.
C.
D.

Answer: D

Mathematics

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Find the center and radius of the sphere.x2 + y2 + z2 - 4x - 12y - 10z = -49

A. C(2, 6, 5), a = 16 B. C(-2, -6, -5), a = 4 C. C(-2, -6, -5), a = 16 D. C(2, 6, 5), a = 4

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Mathematics

The function f is one-to-one. Find its inverse.f(x) = 7x - 8

A. f-1(x) =  - 8
B. f-1(x) =  + 8
C. f-1(x) = 
D. f-1(x) = 

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Solve.Find the simple interest when: Principal = $1488, Rate = 22%, Time = 8 months.

A. $2618.88 B. $327.36 C. $218.24 D. $26,188.80

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Mathematics

Solve the system of equations.  x - y + 5z = -25x = 0  x + 5y  = 10

A. {(0, 2, -2)} B. {(0, 0, 2)} C. {(0, 2, 0)} D. {(2, 0, 0)}

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Mathematics