The answer is going to be 6. hope that helped
Answer:
2x^2-6x-4
Step-by-step explanation:
(7x2 + 4x - 9)
-(5x2 + 10x - 5)
=
7x^2-5x^2=2x^2
4x-10x=-6x
-9-(-5)=-4
thus, your answer is 2x^2-6x-4
Answer:
<em>The unit rate for the price to the length of the fabric will be $8 per meter.</em>
Step-by-step explanation:
The two points on the graph of the line are: (1, 8) and (3, 24)
For finding the unit rate for the price to the length of the fabric, we just need to find the slope of that line.
Formula for finding the slope is: , where and are two given points.
Here, and
So, the slope of the line will be:
Thus, the unit rate for the price to the length of the fabric will be $8 per meter.
15 * 0 = -36 + a is your first expression
Solve the equation to find.
Add 36
(15 * 0) + 36 = a
0 + 36 = a
36 = a
Your second equation
24 * 8 * 0 = 36 - b
Add 36
(24 * 8 * 0) + 36 = b
36 = b
36 is the answer
width= 7m
Step-by-step explanation:
Area= L×W
L= (x+8)m
W=8m
105m²= (x+8)m × (x)m
105m²= x² + 8x
-x² - 8x + 105= 0
(x-7) (x+15) = 0
x= 7 x= -15
x=width = 7m