Answer:
Width is 14 ft, length is 28 ft
Step-by-step explanation:
We know that the length is twice as long as the width. This can be represented by L=2W.
The equation to solve this is 84=W+W+L+L. We can replace both the L variables with 2W, since that is what L equals.
84=W+W+2W+2W. We simplifiy to get 84=6W. We divide 84 by 6 and get W=14.
Now that we know the width, finding the length is easier. L=2(14). L=28 ft.
To check our math we can do 28+28+14+14. 56+28=84 ft.
Therefore, the width is 14 ft and the length is 28 ft.
Step-by-step explanation:
1. 3x+5+4x-1
7x+4
2. 5x-3-2x+1
3x-2
3. -7x+4-5x-12
-12x-8
4. 4x-10-5x-2
-x-12
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Answer:
1.
2. Required factors: (x - 10) (x - 13)
x = 10, x = 13
Step-by-step explanation:
1.
Graph is intersecting x-axis at points (5, 0) & (11, 0)
Hence, x = 5 & x = 11 are zeroes of the function.
So, (x - 5) & (x - 11) are factors of the quadratic function:
Therefore, required function is:
2.
Plug y = 0
So, x - 10 = 0, x - 13 =0
x = 10, x = 13
Answer:
x = 6
y=4
Step-by-step explanation:
11x=66
x = 6
y=4