Find the product. Assume all variables have non-negative values.(
+ 
)(
- 
)
A. m - n
B. m - 2
+ n
C. m2 - n2
D. m + n
Answer: A
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Express the English phrase using an algebraic expression.Seven times the sum of a number and -3
A. 7x - (-3) B. 7+ x + (-3) C. 7x + (-3) D. 7(x + (-3))
Find the probability.The table lists the eight possible blood types. Also given is the percent of the U.S. population having that type.
Let E be the event that a randomly selected person in the U. S. has type B blood. Let F be the event that a randomly selected person in the U. S. has RH-positive blood.Find P(F|E).
A. 0.818 B. 0.340 C. 0.720 D. 0.107
Add or subtract as indicated. Write the answer in simplest form. 
- 
A. - 
B. 
C. - 
D. 
Solve the problem.The population P, in thousands, of Prairie Grove is given by P = 
, where t is the time, in months. Determine the interval on which the population was greater than or equal to 40 thousand.
A. [5.474, ?) B. [0.658, 6.842] C. [0.526, 5.474] D. (-?, ?)