Solve the system by the addition method.x2 + y2 = 64x2 - y2 = 64
A. {(8, 0), (-8, 0)}
B. {(0, 8)}
C. {(0, 8), (0, -8)}
D. {(8, 0)}
Answer: A
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Solve the problem.A block hanging from a spring is free to oscillate. If a 1-kg block attached to the spring is given a downward velocity 
from a 
above its resting position, then at any time t in seconds its position in meters is given by 
Find the maximum distance that the block travels from its resting position.
A. 2 
m
B. 1.13 m
C. 2.26 m
D. 
m
Provide an appropriate response.Solve the following inequality: 3 - 2(x - 5) < 5(2x - 3) + 4
Fill in the blank(s) with the appropriate word(s).
Solve the problem. Round rates to the nearest tenth of a percent and dollar amounts to the nearest cent.A local dealer sells baseballs for $25 each. If $8.89 is the cost, what is the percent of markup on the selling price?
A. 13.8% B. 60.8% C. 64.4% D. 39.2%
Solve the problem.The half-life of a radioactive element is 130 days, but your sample will not be useful to you after 80% of the radioactive nuclei originally present have disintegrated. About how many days can you use the sample?
A. 312 B. 297 C. 302 D. 287