Use the product-to-sum formulas to rewrite the product as a sum or difference.
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A. ?
B. ?
C. ?
D. ?
E. ?
Answer: D
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Rewrite the series using the new index j as indicated.
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Set up the percent proportion for the application problem. Do not try to solve for any unknowns.11% of the baby salmon shipped from a hatchery do not arrive healthy. Of 4200 salmon shipped, how many do not arrive healthy?
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Write the sentence as an equation. Let the variable x represent the number.When 4 times a number is subtracted from 7 times the number, the result is 33.
A. 4x(7 - x) = 33 B. 4(x - 7) = 33x C. 4x + 11x = 33 D. 7x - 4x = 33
Add the polynomials. Assume all variable exponents represent whole numbers.(-8x7 - 5x6 + 2x5 + 2) + (5x7 - 8x6 + 6x5 + 5)
A. 13x7 - 3x6 + 4x5 + 7 B. 13x7 - 3x6 + 4x5 + 3 C. -3x7 - 3x6 + 4x5 + 3 D. -3x7 - 13x6 + 8x5 + 7