Use an integer to express the number.On a sunny day, the water temperature in the swimming pool rises 4 degrees.

A. 4
B. -4


Answer: A

Mathematics

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The number of desks in one row is . How many desks are there in a room of rows if they are arranged in a rectangular arrangement?

What will be an ideal response?

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Use a graphing calculator to solve the linear equation.-9x + 2 + 7x = -2x + 7

A. ? B. {-2} C. all real numbers D. {5}

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Use the appropriate sum or difference identity to write the given expression as a function of x alone.tan (x - 2?)

A. tan x
B.
C. -tan x
D.

Mathematics

Decide if the answer is reasonable or unreasonable by using front end to estimate the answer. If the exact answer is not reasonable, find the correct answer.80.1 ÷ 77.8 = 10.3

A. Unreasonable, should be 1.03 B. Unreasonable, should be 0.0103 C. Unreasonable, should be 0.103 D. Reasonable

Mathematics