Solve the problem.Bill kept track of the number of hours he spent exercising each week. The results for four months are shown below. Find the mean number of hours Bill spent exercising per week. Round to the nearest hundredth.6.60 8.70 6.60 6.90 6.60 6.608.70 6.60 6.60 6.60 6.90 7.507.40 8.70 8.70 8.30 6.60 8.70
A. 7.41
B. 7.02
C. 7.84
D. 7.62
Answer: A
Mathematics
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Identify the numerical value and direction.-21
A. The value is -21 and the direction is to the left. B. The value is 21 and the direction is to the left. C. The value is 21 and the direction is to the right. D. The value is -21 and the direction is to the right
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Write interval notation.{x?-6 ? x ? -2}
A. [-6, -2) B. (-6, -2] C. (-6, -2) D. [-6, -2]
Mathematics
Use a calculator to find the function value to four decimal places.cos (-531°)
A. -0.9877 B. -0.7771 C. -0.1564 D. -0.9336
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Form a polynomial whose zeros and degree are given. Use a leading coefficient of 1. Zeros: -4, -1, 4, 5; degree 4
A. x4 + 24x2 + 80 B. x4 - 4x3 - 21x2 + 64x + 80 C. x4 + 4x3 - 21x2 - 64x + 80 D. x4 - 4x3 - 21x2 + 80x + 80
Mathematics