Tell if the square root is rational, irrational, or not a real number. If the square root is rational, find the exact value; if the square root is irrational, write the approximate value rounded to two decimal places.
A. irrational; 
B. rational; 
C. rational; 
D. not a real number
Answer: B
Mathematics
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Use a CAS integration utility to evaluate the triple integral of the given function over the specified solid region.
over the rectangular solid 
, 
, 
A. - 3840
B. - 
C. - 1280
D. - 640
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Evaluate the algebraic expression for the given values of the variables.8 + x ÷ 1 + y, for x = 3, y = 10
A. 13 B. 12 C. 21 D. 20
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Perform the operation. Write the answer as a fraction in lowest terms.
- 
A. 0
B. 2
C. 
D. 
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Solve the system using the inverse that is given for the coefficient matrix.
?
A. {(-48, -60, -22)} B. {(-6, 0, 0)} C. {(-32, 40, -18)} D. {(-22, 34, -18)}
Mathematics