Find all real numbers that satisfy the equation. Round approximate answers to 2 decimal places.
= 
A. 14
B. 28
C. 
D. 24.2
Answer: A
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Use trial and error to factor the trinomial, or state that the trinomial is prime.9z2 + 6z - 8
A. prime B. (9z - 2)(z + 4) C. (3z - 2)(3z + 4) D. (3z + 2)(3z - 4)
Factor completely. If unfactorable, indicate that the polynomial is prime.49 - (x + 4y)2
A. (7 + x + y)(7 - x - y) B. (7 + x + 4y)(7 - x - 4y) C. (7 + 4xy)(7 - 4xy) D. (7 + x - 4y)(7 - x - 4y)
Translate the problem to a system of equations; then solve using the elimination method.Walt made an extra $7000 last year from a part-time job. He invested part of the money at 9% APR and the rest at 8% APR. He made a total of $590 in interest. How much was invested at 8%?
A. $3500 B. $4000 C. $3000 D. $5000
Provide an appropriate response. A company can manufacture 4 cases of a product to make $13 profit, and it can manufacture 5 cases of the product to make $17 profit. Write the linear profit equation for this company.
A. y = 5x - 7 B. y = 4x + 9 C. y = 4x + 3 D. y = 4x - 3