Solve the problem.The graph below shows the rate of natural gas usage (in therms per day) in one household for a 30-day period. Estimate the total number of therms used during this period. Use left endpoints and rectangles with widths of 3 days.
A. 147 therms
B. 159 therms
C. 136 therms
D. 165 therms
Answer: B
Mathematics
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Determine the letters or numbers.Break 110001011001011100100 into groups of seven digits and write as lower case letters.
A. bed B. bad C. arm D. cue
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Solve the problem.Find the mass of a sphere of radius 8 if 
k a constant.
A. 64k? B. 512k? C. 4096k? D. 8192k?
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Find the equation of the ellipse satisfying the given conditions. The center is at the origin.End of minor axis (5, 0), vertex (0, 6)
A. 
+ 
= 10
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Find the requested measurement. Use ? ? 3.14 and round your answer to the nearest hundredth.Find the area.
A. 17.90 mi2 B. 102.02 mi2 C. 35.80 mi2 D. 25.50 mi2
Mathematics