Use estimation to determine which calculation is incorrect.

A.

B.

C.

D.


Answer: A

Mathematics

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A. No mode B. $97 C. $44 D. $97 and $44

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Graph the function.y = 4 sin (2x + ?)

A.

B.

C.

D.

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Combine like terms.-14.5 + 9.1x - 9.4 - 5.4x

A. 3.7x - 5.1 B. 3.7x - 23.9 C. 4.7x - 23.9 D. -1.4x

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Find the simple interest and amount for the value of principal P, rate r per year, and time t.P = $7800, r = 5%, t = 4 years and 6 months

A. $18,866.25, $26,666.25 B. $1886.63, $5913.38 C. $188.66, $7988.66 D. $1886.63, $9686.63

Mathematics