Add or subtract as indicated. Express the answer as a single polynomial in standard form.(x2 + 1) - (4x2 + 7) + (x2 + x - 8)
A. -2x2 + x - 14
B. -2x2 + 8x - 7
C. -4x2 + x - 14
D. -3x2 + x - 14
Answer: A
Mathematics
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A. 
B. 
C. 
D. 
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Find the decimal equivalent of the fraction.
A. 0.15
B. 0.
C. 0.
D. 0.1
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Use an integer to express the number.On a sunny day, the water temperature in the swimming pool rises 9 degrees.
A. -9 B. 9
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Solve the problem.A rumor is spread at an elementary school with 1200 students according to the model 
where N is the number of students who have heard the rumor and d is the number of days that have elapsed since the rumor began. How many days must elapse for 500 to have heard the rumor?
Fill in the blank(s) with the appropriate word(s).
Mathematics