Provide an appropriate response.
Why could (-10, -8) not be a solution of the system that is graphed?
What will be an ideal response?
The solution cannot have a negative value for either x or y.
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?Which of the following is true?(hint: n! = n(n - 1)(n - 2)...1) ?
A.
?
B.
?8! = 4!(4!)
C.
?3 is a factor of 7!
D.
?a and b
E.
?a and c
Find an equation of the circle satisfying the given conditions.Center at (0, -3), radius 
A. (x + 3)2 + y2 = 100 B. (x - 3)2 + y2 = 100 C. x2 + (y + 3)2 = 10 D. x2 + (y - 3)2 = 10
Round the numbers so that there is only one non-zero digit, and estimate the answer. Then perform the indicated operation to find the exact answer.91.5 - 9.25
A. estimate: 91; exact: 92.38 B. estimate: 81; exact: 82.25 C. estimate: 91; exact: 91.28 D. estimate: 81; exact: 82.35
Solve the problem.The sales tax rate in one state is 5.75%. How much tax will be charged on a purchase of 6 chairs at $63 apiece? Round your answer to the nearest cent.
A. $217.35 B. $21.74 C. $3.62 D. $66.62