Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 8
D. 
Answer: A
Mathematics
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Provide an appropriate answer.Let A = 
and B = 
. Show that A(A + B) = A2 + AB. Show all your work.
What will be an ideal response?
Mathematics
Find the exact circumference of the circle in terms of ?.
A. 4? km B. 16.2? km C. 8.1? km D. 64.01? km
Mathematics
Solve.Find the simple interest when: Principal = $8900, Rate = 9%, Time = 
years.
A. $2603.25 B. $801.00 C. $8010.00 D. $26,032.50
Mathematics
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. What are Mr. Cameron's expected concert earning?
A. $300,000 B. $360,000 C. $60,000 D. $218,400
Mathematics