Write using radical notation. Then, simplify, if possible.(25y14)1/2
A. 5y14
B. 5y7
C. 
D. 5
Answer: B
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Use roster notation to write the set.The natural-number multiples of 7 greater than 20 and less than 106
A. {28, 35, ..., 105} B. {20, 106} C. {21, 28, 35, ..., 105} D. {21, 35, ..., 105}
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
For the given functions f and g, find the requested function and state its domain. Write the domain in interval notation.f(x) = 8x - 2; g(x) = 3x - 4;
Find f - g.
A. (f - g)(x) = 5x - 6; (-?, 
) ? (
, ?)
B. (f - g)(x) = -5x - 2; (-?, ?)
C. (f - g)(x) = 11x - 6; (-?, 1) ? (1, ?)
D. (f - g)(x) = 5x + 2; (-?, ?)
Solve the problem.A computer manufacturer has three outlet stores that sell its four computer systems. The following table shows the numbers of systems sold by the three stores in July.
The prices of the systems are: $1200 for System 1, $1500 for System 2, $1600 for System 3, and $2000 for System 4. Write the information from the table as a 4 x 3 matrix B. Write a row matrix A for which the entries represent the prices for the systems. If 
find c13 . What does this entry of C represent?
A. c13 = 130,000. c13 represents the total sales at Store 3 in July. B. c13 = 150,000. c13 represents the sales of System 3 at all stores in July. C. c13 = 160,000. c13 represents the total sales at Store 1 in July. D. c13 = 170,000. c13 represents the total sales at Store 3 in July.