Perform the indicated operations.
- 
+ 7
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.At time t ? 0, the velocity of a body moving along the s-axis is 
When is the body moving backward?
A. t > 4 B. 0 ? t < 4 C. 1 < t < 4 D. 0 ? t < 1
Solve.2(2z - 5) = 3(z + 2)
A. -2 B. 16 C. 4 D. -4
Solve.Linda invests $25,000 for one year. Part is invested at 5%, another part at 6%, and the rest at 8%. The total income from all 3 investments is $1600. The income from the 5% and 6% investments is the same as the income from the 8% investment. Find the amount invested at each rate.
A. At 5%: $5000; at 6%: $10,000; at 8%: $10,000 B. At 5%: $8000; at 6%: $10,000; at 8%: $7000 C. At 5%: $10,000; at 6%: $10,000; at 8%: $5000 D. At 5%: $10,000; at 6%: $5000; at 8%: $10,000
Determine whether the equation defines y as a function of x. y = 6x2 - 4x + 7
A. function B. not a function