Answer:
125%
Step-by-step explanation:
this is because the difference is 25% so b is 125% more than a
X2+12x+11=0
x2+12x+(12/2)^2-(12/2)^2+11=0
(x+6)^2-36+11=0
(x+6)^2=25
(x+6)=+-5
x= +5-6 or -5-6
= -1 or- 11
Answer:
Length: 6 m
Width: 4 m
Step-by-step explanation:
Area: 24 ![m^{2}](https://tex.z-dn.net/?f=m%5E%7B2%7D)
Width: 2L - 8 m
Length: ?
Formula: A = W * L
Replace the variables:
24 = (2L - 8) * L
24 = 2
- 8L
0 = 2
- 8L - 24
or
2
- 8L - 24 = 0
Solve; if you don't know how to solve it using this method, let me know. It's the expression ![Ax^{2} +Bx+C](https://tex.z-dn.net/?f=Ax%5E%7B2%7D%20%2BBx%2BC)
1. ![2 (\frac{(2L^2 - 8L - 24)}{2})](https://tex.z-dn.net/?f=2%20%28%5Cfrac%7B%282L%5E2%20-%208L%20-%2024%29%7D%7B2%7D%29)
2. ![\frac{(2L)^2 - 8(2L) - 48}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B%282L%29%5E2%20-%208%282L%29%20-%2048%7D%7B2%7D)
3. ![\frac{(2L - 12)(2L + 4)}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B%282L%20-%2012%29%282L%20%2B%204%29%7D%7B2%7D)
4. ![2(\frac{(L - 6)(2L + 4)}{2})](https://tex.z-dn.net/?f=2%28%5Cfrac%7B%28L%20-%206%29%282L%20%2B%204%29%7D%7B2%7D%29)
5. (L-6) (2L+4)
6. L-6 = 0 AND 2L+4 = 0
L - 6 =0
L = 6
---------------------------------
2L = -4
L = ![\frac{-4}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B-4%7D%7B2%7D)
L = -2
Since the length cannot be negative, the only real value is 6.
Area: 24 ![m^{2}](https://tex.z-dn.net/?f=m%5E%7B2%7D)
Width: 2L - 8 m
Length: 6 m
Calculate width:
W = 2L - 8
W = 2(6) - 8
W = 12 - 8
W = 4 m
Answer:
e = 7.5
Step-by-step explanation:
Hi,
15 = e/0.5
You need to find what e equals. To do that, you need e all by itself. So to get e by itself in this equation, you need to multiply by 1/2 (same thing as 0.5). 15 x 0.5 is equal to 7.5.
To check your work, 7.5/0.5 is equal to 15.
So you know it's correct.
I hope this helps you :)