Perform the operation indicated. Simplify. + 

A.
B.
C.
D. 5x + 3


Answer: B

Mathematics

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Solve the problem. Round results to an appropriate number of significant digits.A fire is sighted due west of lookout A. The bearing of the fire from lookout B,  due south of A, is  How far is the fire from B (to the nearest tenth of a mile)?

A. 20.9 mi B. 18.9 mi C. 21.9 mi D. 19.9 mi

Mathematics

Solve the problem. Round rates to the nearest tenth of a percent as necessary, amounts to the nearest dollar, and time to the nearest day.A $2000 note is signed, for 30 days, at a discount rate of 9%. Find the proceeds.

A. $1985.21 B. $1820.00 C. $1985.00 D. $2000.00

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Which method should be used to solve the system? Explain your answer, including a description of the first step. x2 - 7y2 = 910x2 + 9y2 = 100

What will be an ideal response?

Mathematics

Find the area of a circle with radius 3.8 ft. Use and round to the nearest tenth.

A. 181.4
B. 45.3
C. 11.9
D. 23.9

Mathematics