Solve the problem. Use the correct number of significant digits.Assume that the volume of Earth is5.0 × 1014 cubic meters and the volume of a bacterium is2.5 × 10-16 cubic meters. If Earth could be filled with bacteria, how many would it contain?
A. 2.0 × 1030 bacteria
B. 2.0 × 10-30 bacteria
C. 5.0 × 1031 bacteria
D. 5.0 × 10-31 bacteria
Answer: A
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Make a bar graph using the given frequencies.The frequency distribution indicates the height in feet of persons in a group of 135 people. 
A. 
B. 
C. 
D. 
Answer the question.For f(x) = 3x + 9 and g(x) = 4
, what is the domain of f?g?
A. 
B. 
C. 
D. All real numbers
Solve the problem.Use determinants to determine whether the points (-2, 6), (0, 1), and (3, -8) are collinear.
A. Yes B. No
Solve the problem.Chi is assigned to construct a triangle with the measure b of the base and the measure h of the height differing by no more than 0.2 centimeters. Express the relationship between b and h as an inequality involving absolute value.
Fill in the blank(s) with the appropriate word(s).