Find the perimeter of the triangle.a scalene triangle whose sides are 6.8 ft, 12.5 ft, and 5.5 ft
A. 23.8 ft
B. 24.8 ft
C. 25.8 ft
D. 18.7 ft
Answer: B
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A hypothesis test is to be performed. State the null and alternative hypotheses.Last month the mean waiting time at a bank was 8.4 minutes. The manager has installed a new computer system and claims that people will no longer have to wait as long.
A. Null hypothesis: mean waiting time < 8.4 minutes Alternative hypothesis: mean waiting time = 8.4 minutes B. Null hypothesis: mean waiting time = 8.4 minutes Alternative hypothesis: mean waiting time < 8.4 minutes C. Null hypothesis: mean waiting time > 8.4 minutes Alternative hypothesis: mean waiting time < 8.4 minutes D. Null hypothesis: mean waiting time = 8.4 minutes Alternative hypothesis: mean waiting time ? 8.4 minutes
Find the focus and directrix of the parabola.y2 - 24x = 0
A. (6, 0); x = 6 B. (6, 0); x = -6 C. (0, 6); y = -6 D. (6, 0); y = -6
Perform the indicated operation. Write the answer in scientific notation.(8.81 × 10-3) ? (6.79 × 10-3) Give the answer to three significant digits.
A. 6.0 × 109 B. 5.98 × 109 C. 5.98 × 10-5 D. 6.0 × 10-5
Use a calculator to approximate the expression. Write your answer in scientific notation, and round to the nearest tenth as needed.
A. 7.2 × 108 B. 6.8 × 106 C. 7.6 × 108 D. 7.2 × 106