Solve by the substitution method. If the system is inconsistent or dependent, say so.7x + 9y = 563x - 5y = 24
A. No solution
B. (7, 1)
C. (8, 1)
D. (8, 0)
Answer: D
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Solve.A company that manufactures outdoor rocking chairs makes a daily profit p according to the equation 
where p is measured in dollars and x is the number of rocking chairs made per day. Find the number of rocking chairs that must be made each day to produce a zero profit for the company. Round your answer to the nearest whole number.
A. 2041 rocking chairs or 2459 rocking chairs per day B. 20 rocking chairs or 25 rocking chairs per day C. 45 rocking chairs or 50 rocking chairs per day D. 25 rocking chairs per day
Find the perimeter. Use 3.14 for ?.
A. 42.98 in. B. 31.99 in. C. 49.98 in. D. 38.99 in.
Find a rectangular equation for the plane curve defined by the parametric equations.x = 2t - 1, y = t2 + 2; -4 ? t ? 4
A. y = 
x2 + 
x + 
; for x in -9 ? x ? 7
B. y = 
x2 + 1; for x in -6 ? x ? 4
C. y = x2 + 1; for x in -2 ? x ? 2
D. y = - 
x + 30; for x in -6 ? x ? 4
Find the foci of the hyperbola.y = ±
A. (0, 2
) and (0, -2
)
B. (0, 2
) and (0, -2
)
C. (2
, 0) and (-2
, 0)
D. (
, 0) and (-
, 0)