OK.... here we go....
The width is 8 less than the length, so that means: w = L - 8.
So, since the area of a rectangle is: A = L x W ...
Therefore, 48 = L(L - 8)...
48 = L^2 - 8L...
continuing from there .... you get width = 4 and length = 12
48 = 4 x 12 (and notice that the width is 8 less than the length)
Answer:
2. (1) 
3. (1) 
4. a) 
b) 
Step-by-step explanation:
Answer:
Boxes of pizza: 16
Sodas: 6
Step-by-step explanation:
Use system to solve:
x : boxes of pizza
y: soda
<em>x + y = 20</em>
<em>8x + 1.5y = 137</em>
<em />
Answer: Least value: 15 Greatest value: 30
Median:21, it's in the center of the box plot,
upper quartile: 17 lower quartile:27
IQR: 10
Step-by-step explanation
Answer:
The perpendicular line would be y = -2/3x - 9
The parallel line would be y = 3/2x + 21/2
Step-by-step explanation:
Since we have the slope of 3/2, we know the perpendicular slope will be -2/3. This is because perpendicular lines have opposite and reciprocal slopes. Now we can use that and the point in point-slope form to get the equation.
y - y1 = m(x - x1)
y + 3 = -2/3(x + 9)
y + 3 = -2/3x - 6
y = -2/3x - 9
For the parallel line we would use the same slope as the original (3/2) and also start with point-slope form.
y - y1 = m(x - x1)
y + 3 = 3/2(x + 9)
y + 3 = 3/2x + 27/2
y = 3/2x + 21/2
