Add.7x8 - 6x3 + 2x2 + 9 and 9x7 + 4x3 - 5x
A. 7x8 + 9x7+ 2x3 + 2x2 - 5x + 9
B. 16x8 - 10x3 + 2x2 - 5x + 9
C. 16x8- 2x3 + 2x2 - 5x + 9
D. 7x8 + 9x7- 2x3 + 2x2 - 5x + 9
Answer: D
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The following table shows the population, in millions, of a certain town in the given year.
1985198719891991
2397221320461877?
A. Calculate the average rate of change in population from 1987 to 1989. (Be careful to get the sign right.)B. Explain in practical terms the meaning of the number you calculated in part A.C. Use averaging to estimate the population in 1988.
What will be an ideal response?
Solve.The temperature was 61°F in the morning, but it dropped 19°F in the afternoon and another 5°F in the evening. What was the temperature in the evening?
A. 37°F B. -47°F C. -37°F D. 47°F
Solve by factoring.6n2 + 24n = 0
A. - 4 B. 0 C. - 4, 24 D. - 4, 0
Solve and simplify.
? x = 33
A. 50 B. 13 C. 33 D. 22