Answer:
B. (1,5) and (5.25, 3.94)
Step-by-step explanation:
The answer is where the 2 equations intersect.
We need to solve the following system of equations:
y = -x^2 + 6x
4y = 21 - x
From the second equation:
x = 21 - 4y
Plug this into the first equation:
y = -(21 - 4y)^2 + 6(21 - 4y)
y = -(441 - 168y + 16y^2)+ 126 - 24y
y = -441 + 168y - 16y^2 + 126 - 24y
16y^2 + y - 168y + 24y + 441 - 126 = 0
16y^2 - 143y + 315 = 0
y = [-(-143) +/- sqrt ((-143)^2 - 4 * 16 * 315)]/ (2*16)
y = 5, 3.938
When y = 5:
x = 21 - 4(5) = 1
When y = 3.938
x = 21 - 4(3.938) = 5.25.
We know that the point is in Q II. Thus, the x-coordinate of this point will be negative and the y-coordinate will be positive.
The y-coordinate is essentially given, and is y=4.
Imagine drawing a vertical line thru x=-2. This line will intersect y=4 at (-2,4).
The coordinates of the point are (-2, -4).
Cual es la formula de un octaedro
<span>1/6 (12C + 24) + 1/3(12 c - 3) =
12 c/ 6 + 4 +12c / 3 - 1 =
2c +4 + 4 c -1
6c +3 </span>
Bria: 145 centimeters
Jayleen: 1.5 meters
I'm going to convert Jayleen's into centimeters:
1 meter has 100 centimeters
1.5 x 100 = 150 centimeters
so,
Bria:145 centimeters
Jayleen: 150 centimeters
So, Jayleen bought more fabric
