Simplify the expression. Write the result using positive exponents only.r-7
A. - 
B. -r7
C. r1/7
D. 
Answer: D
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Determine whether or not the graph is a graph of a function of x.
A. Function B. Not a function
Solve the rational inequality and graph the solution set on a real number line. Express the solution set in interval notation.
? 0
A. (-?, 5]
B. (-?, 4) or [5, ?)
C. (4, 5]
D. [4, 5]
Determine whether the relation is a function. Give the domain and range for the relation.{(-9, -3), (8, 4), (-5, 5), (-5, -4)}
A. function; domain: {-5, 8, -9}; range: {5, 4, -3, -4} B. not a function; domain: {5, 4, -3, -4}; range: {-5, 8, -9} C. function; domain: {5, 4, -3, -4}; range: {-5, 8, -9} D. not a function; domain: {-5, 8, -9}; range: {5, 4, -3, -4}
Perform the indicated operation.356.7 + 0.24 + 34.54 + 17.9
A. 409.38 B. 409.39 C. 410.38 D. 409.48