Find the reference angle of the given angle.

A.
B.
C.
D.

Answer: D

Mathematics

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Simplify.

A. 5r + 3s
B.
C. 3r + 5s
D.

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The pair of figures is similar. Find the missing side n. Round to the nearest tenth when necessary.

A. n = 57 cm B. n = 6.3 cm C. n = 1.4 cm D. n = 513 cm

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Mathematics

Use the square root property to solve the equation. x2 = 49

A. {±7} B. {24.5} C. {7} D. {±7i}

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Mathematics

The first several terms of a sequence are given. Find the indicated partial sum.2, -6, 10, -14, . . . ; S6 

A. 6 B. -10 C. 12 D. -12

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Mathematics