S(p)= 5(12)= $60
D(p)= 120-4(12)= $72
Answer:
C. (0,-3)
Step-by-step explanation:
y = 2x - 3
We only need to focus on "- 3" because it represents "b" of the equation y = mx + b.
Since it is a y intercept, the coordinate must be at the y axis.
So,
x = 0
y = -3
(0,-3)
Answer:
180 cm
Step-by-step explanation:
2(3*10) = 60
3*12 = 24
1/2(12*8) * 2 = 96
formula for a triangle is 1/2 b h
Answer:
Step-by-step explanation:
By the Pythagorean Theorem
27^2=16^2+x^2
x^2=27^2-16^2
x^2=473
x=21.7 ( to nearest tenth)
Answer:
(8, 11)
Step-by-step explanation:
The 2-point form of the equation of a line is useful for the one where only points are given.
y = (y2 -y1)/(x2 -x1)(x -x1) +y1
y = (3 -1)/(4 -3)(x -3) +1
y = 2(x -3) +1
We can equate this to the expression for y in the given equation.
x +3 = 2(x -3) +1
x +3 = 2x -5 . . . . . . eliminate parentheses
8 = x . . . . . . . . . . . . add 5-x
Using the given equation, we can find y:
y = x +3 = 8 +3
y = 11
The solution to the system is (x, y) = (8, 11).