Use the method of matrix inverses to solve the system.
A. x = -6, y = 9
B. x = -4, y = 5
C. x = 0, y = 12
D. x = 4, y = -2
E. x = -2, y = 8
Answer: B
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Factor the trinomial.n2 + 4n - 60
A. (n - 60)(n + 1) B. (n - 10)(n - 6) C. (n - 10)(n + 6) D. (n + 10)(n - 6)
Provide an appropriate response.The perimeter of a square depends on the length of its side.(a)Write a function p(l) for the perimeter of a square when the length of its side is l.(b)What is the domain of this function out of context?(c)What is the domain of this function in the given context?(d)Find p(x), p(2x) and p(3x).(e)What happens to the perimeter of a square when the side is scaled by a factor s? Describe using an equation.
What will be an ideal response?
Solve.John owns a hotdog stand. His profit is represented by the equation 
with P being profits and x the number of hotdogs sold. What is the most he can earn?
A. $91 B. $36 C. $73 D. $79
Find the next three terms of the arithmetic sequence.3, 9, 15, 21, . . .
A. 21, 27, 33 B. 27, 39, 45 C. 27, 34, 40 D. 27, 33, 39