Factor the expression.x2 + 20x
A. x2(1 + 20x)
B. x(x2 + 20)
C. x(x + 20)
D. No common factor
Answer: C
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Solve the problem.The population (in hundred thousands) for the Colonial United States in ten-year increments for the years 1700-1780 is given in the table. (Source: 1998 Information Please Almanac)
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State whether the data can be more accurately modeled using an exponential function or a logarithmic function. Using a graphing utility, find a model for population (in
hundred thousands) as a function of decades since 1700. What will be an ideal response?
Write the statement as an inequality.y is greater than -45
A. y ? -45 B. y ? -45 C. y > -45 D. y < -45
Add or subtract as indicated. Simplify, if necessary.
+ 
A. 
B. 
C. 
D. 1
Provide an appropriate response.A shipment of 20 digital cameras contains two that are defective. A random sample of three is selected and tested. Let X be the random variable associated with the number of defective cameras in a sample. Find the probability distribution of X and the expected number of defective cameras in a sample.
What will be an ideal response?