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?
Mathematics
Use a graphing calculator to solve the linear equation.-9x + 2 + 7x = -2x + 7
A. ? B. {-2} C. all real numbers D. {5}
Mathematics
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