Solve the system by graphing. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. infinitely many solutions; {
y + x = 6} or {
x = -y}
B. no solution; ?
C. {(1, 5)}
D. {(1, 1)}
Answer: B
Mathematics
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Solve.
= 
A. 0, 30 B. -60 C. 0, 60 D. -30
Mathematics
Simplify the expression and combine like terms.4y + 5(3 - 8y)
A. -4y + 15 B. -36y + 15 C. 44y - 15 D. 36y - 15
Mathematics
For the function f, use composition of functions to show that f-1 is as given.
, 
What will be an ideal response?
Mathematics
Write a general formula to describe the variation.The surface area S of a right circular cone varies directly as the radius r times the square root of the sum of the squares of the base radius r and the height h. The constant of proportionality is ?.
A. S = ?r
B. S = ?r
C. S = ?
D. S = ?r
Mathematics