Provide an appropriate response.Solve the system of equations using the addition method: 3x - 5y = 52x + 3y = 16
A. dependent; no solution
B. (10, 5)
C. inconsistent; no solution
D. (5, 2)
Answer: D
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Factor the special products, which are the sum or difference of two perfect cubes.125s3 + 27t3
A. (5s + 3t)(25s2 - 15st + 9t2) B. (5s + 3t)(25s2 + 15st + 9t2) C. (5s - 3t)(25s2 - 15st + 9t2) D. (6s + 3t)(25s2 + 9t2)
Divide.(4r3 - 3r2 - 8r - 4) ÷ (r - 2)
A. 4r2 + 5r +
B. 4r2 + 5r + 2
C. r2 + 2r + 5
D. 4r2 - 5r - 2
Solve the problem.A retired couple has $130,000 to invest to obtain annual income. They want some of it invested in safe Certificates of Deposit yielding 5%. The rest they want to invest in AA bonds yielding 12% per year. How much should they invest in each to realize exactly $12,100 per year?
A. $80,000 at 12% and $50,000 at 5% B. $90,000 at 12% and $40,000 at 5% C. $80,000 at 5% and $50,000 at 12% D. $70,000 at 5% and $60,000 at 12%
Multiply.(7x)(3x4)(x2)
A. 21x6 B. 10x6 C. 21x7 D. 11x7