Add or subtract. Then simplify. If a denominator has two or more factors (other than monomials), leave it in factored form. Express the answer using the denominator of the first fraction when applicable.
+ 
A. 
B. 
C. 
D. 
Answer: D
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Work the application and answer with a complete sentence.In a biology experiment, a scientist collected 6409 mosquitoes in a rural field and 2174 mosquitoes in an urban area. How many mosquitoes did she collect in all?
A. She collected 5272 mosquitoes in all. B. She collected 8583 mosquitoes in all. C. She collected 8236 mosquitoes in all. D. She collected 4235 mosquitoes in all.
Provide an appropriate response.The payoff table for three possible courses of action A1, A2, and A3 is given below.pi?A1xi?A2xi?A3xi?.3$70$40$50.2$100$120$110.1$160$140$90.4$80$140$160Which course of action will produce the largest expected value? What is it?
What will be an ideal response?
Determine if the graph is symmetric with respect to x-axis, y-axis, and/or the origin.
A. Origin B. y-axis C. x-axis D. x-axis, origin
Answer the question.Paul's last four paychecks have been $925.99, 
, 
, and 
. What is the average amount for these paychecks?
A. $1050.02 B. $1030.22 C. $1000.20 D. $1020.36