Evaluate the expression for the given replacement values.z2 for z = 0.8
A. 1.6
B. 0.16
C. 6.4
D. 0.64
Answer: D
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Use your calculator to perform each calculation and observe the answers. Use inductive reasoning to determine which statement is true. 
; 
; 
; 
A. An even root of a negative number can be either positive or negative. B. An even root of a negative number is undefined. C. An even root of a negative number is negative. D. An even root of a negative number is positive.
Write the fraction as a decimal using the bar notation.
A. 0.
B. 0.
C. 0.
D. 0.
Solve the problem.The charges for renting a moving van are $65 for the first 50 miles and $4 for each additional mile. Assume that a fraction of a mile is rounded up. (i) Determine the cost of driving the van 86 miles. (ii) Find a symbolic representation for a function f that computes the cost of driving the van x miles, where 
(Hint: express f as a piecewise-constant function.)
A. $209;
f(x) = 
B. $209;
f(x) = 
C. $609;
f(x) = 
D. $5734;
f(x) = 
Multiply and simplify. Assume that all variables represent positive real numbers.(11
)2
A. 121
B. 11y2
C. 121y2
D. 121y