Solve the equation.2r + 2 = 20

A. 16
B. 20
C. 8
D. 9

Answer: D

Mathematics

Simplify by factoring.2

A. 2
B. 23
C. 9
D. 46

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Mathematics

Write in exponential form.-3 = log4

A. 4⁶⁴ = 3
B. ³ = 4
C. 4^-3 =
D. 3⁴ =

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Mathematics

Find the exact value of the expression. Do not use a calculator.sin (-2?) + cos

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

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Mathematics

Simplify the decimal expression.18.89(0.008)

A. 0.25112 B. 1.25112 C. 0.26112 D. 0.15112

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Mathematics