Solve the problem.A random sample of 30 high school students is selected. Each student is asked how much time he or she spent watching television during the previous week. The following times (in hours) are obtained: 10, 18, 12, 15, 12, 10, 12, 11, 9, 15, 13, 11, 11, 10, 13, 12, 9, 9, 14, 11, 9, 11, 18, 13, 10, 14, 10, 13, 12, 11Construct a frequency distribution for the data.
What will be an ideal response?
Mathematics
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Solve the problem. Round your answer to the nearest hundredth.A conveyor ramp carries heavy equipment up to an elevated platform. If the ramp starts at ground level 125 ft from the base of the platform and the angle of elevation is 20°, how long is the ramp?
A. 117.46 ft B. 365.48 ft C. 45.50 ft D. 133.02 ft
Mathematics
Factor by grouping.10x2 + 15x + 8x + 12
A. (5x - 4)(2x - 3) B. (10x + 4)(x + 3) C. (10x - 4)(x - 3) D. (5x + 4)(2x + 3)
Mathematics
Multiply. Write the answer in simplest form.
? 0 ? 
A. 0
B. 
C. 
D. undefined
Mathematics
Find the indicated term of the arithmetic sequence.Given an arithmetic sequence with d = -4 and a4 = -22, find a20.
A. 90 B. -86 C. -90 D. 86
Mathematics