Solve the system of equations using elimination.
What will be an ideal response?
x = 
, y = 
; x = - 
, y = 
; x = ,
, y = - 
; x = - 
, -y = 
Mathematics
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The sales tax 
, in dollars, I have to pay when I buy 
dollars worth of merchandise is given by
.
Identify the slope, and explain in practical terms its meaning in terms of percentages.
What will be an ideal response?
Mathematics
Find projv u.v = 2i - 2j - 4k, u = 12i - 5k
A. 
i - 
j - 
k
B. 
i - 
k
C. 
i - 
k
D. 
i - 
j - 
k
Mathematics
Solve the problem.Find the APY for an APR of 2.5% compounded semi-annually.
A. 2.5000% B. 2.5315% C. 2.5288% D. 2.5156% E. 2.5235%
Mathematics
Add a constant term to the expression to make it a perfect square.x2 - 
x
A. - 
B. - 
C. 
D. 
Mathematics