Graph the circle.(x + 4)2 + y2 = 25
A. 
B. 
C. 
D. 
Answer: C
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Write one or more inequalities that describe the set of points.The half-space consisting of the points behind the yz-plane
A. x ? 0 B. y ? 0, z ? 0 C. y < 0, z < 0 D. x < 0
Simplify the rational expression.
A. 7x - 1
B. 
C. 7x2 - 30
D. 
Answer the question.In the first game last week a baseball player had 0 hits in src="https://sciemce.com/media/4/ppg__tttt0706190920__f1q51g6.jpg" alt="" style="vertical-align: -4.0px;" /> Which measure of central tendency would be best to use to find her average?
A. Median
B. Mode
C. Mean
D. Weighted mean
at bat. In the second game she went 
and in the third game she had 
in 
at bat. In the double header the next day she was 
and
Solve the problem.When a radioactive substance decays, the number N of grams remaining from an initial mass N0 (in grams) is given by 
where n is the number of half-lives for which the substance has decayed. Given that the half-life for tritium is 15 years, find the rate in (grams/half-life) at which a 91-gram initial mass of radioactive tritium decays after 48 years.
A. -9.9 g/half-life B. -6.86 g/half-life C. -3.62 g/half-life D. -63.07 g/half-life