Use a special product formula to simplify.(5x4 + 4y4)(5x4 - 4y4)
A. 25x8 - 16y8
B. 25x8 - 20x4y4 - 16y8
C. 5x8 - 16y8
D. 25x8 + 16y8
Answer: A
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Provide an appropriate response.2x - 5 = 5 + 7x - 3Is this a linear equation?
A. Yes B. No
Factor.b6 - 1
A. (b3 + 1)(b3 - 1) B. (b2 + 1)(b4 - b2 + 1) C. (b + 1)(b - 1)(b2 + b + 1)(b2 - b + 1) D. (b + 1)(b - 1)(b4 + b2 + 1)
Solve the problem.Helen Weller invested $13,000 in an account that pays 10% simple interest. How much additional money must be invested in an account that pays 13% simple interest so that the average return on the two investments amounts to 11%?
A. $13,000 B. $10,000 C. $9000 D. $6500
Use the discriminant to determine what type of solutions exist for the quadratic equation. Do not solve the equation.
A. nonreal complex numbers, complex conjugates B. rational, unequal C. irrational, unequal D. rational, equal E. irrational, equal