Factor completely. If the polynomial is prime, state this.25y4 - 81
A. Prime
B. (5y2 + 9)2
C. (5y2 + 9)(5y2 - 9)
D. (5y2 - 9)2
Answer: C
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Divide.-20 ÷ (0.5)
A. -0.4 B. 4 C. -40 D. -4
Write the following as an algebraic expression. Simplify if possible.Subtract 6x + 10 from 4x - 8.
A. -2x - 2 B. 10x + 2 C. 2x + 18 D. -2x - 18
The snow pack at a certain ski resort at the beginning of ski season averages 23". After that it grows at a rate on average of 3.4 per day until the end of the season.
(a) What is the snowpack on the fourth day of the season? What is it on the 10th day? (b) Write an equation expressing the snowpack, S, in terms of the day, d, of the ski season. (c) What is the slope of the line this equation represents? (d) What should be the expected snowpack on the 31st day of the season?
Solve the problem.The product of a number and 4 less than the number is 21. Find the number.
A. -3 or 7 B. -8 or 2 C. -7 or 3 D. -2 or 8