Use scientific notation to solve the problem.Assume that the volume of the earth is 5 × 1014 cubic meters and the volume of a bacterium is 
cubic meters. If the earth could be filled with bacteria, how many would it contain?
A. 2.0 × 1030 bacteria
B. 5.0 × 10-31 bacteria
C. 5.0 × 1031 bacteria
D. 2.0 × 10-30 bacteria
Answer: A
Mathematics
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Solve the absolute value equation.|0.3x + 0.4| = 2
A. x = 0.667, 2 B. x = -5.333, 8 C. x = -2, -0.667 D. x = -8, 5.333
Mathematics
Solve the problem.The speed of a vehicle is inversely proportional to the time it takes to travel a fixed distance. If a vehicle travels a fixed distance at 30 miles per hour in 60 minutes, how fast must it travel to cover the same distance in 25 minutes?
A. 50 mph
B. 
mph
C. 
mph
D. 72 mph
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Find the slope of the line that goes through the given points.(7, 8), (6, -4)
A. - 10
B. 
C. - 
D. 12
Mathematics
Find the values of sec? and cot? if the point(-3,4) is on the terminal side of ?.
 figure 1.png)
Mathematics