Answer:
A. A = 7x
B. S = x^2 +4x + 21
C. T = A + S
Step-by-step explanation:
A.
B.
- S = A1 + A2 + A3
- S = x^2 + 4x + 21
C.
The values are related by the total area, T = L x W
L = (7+x), W = (4+x)
- T = (7+x)(4+x)
- T =x^2 + 11x + 21
Remember that total area we found? If we add the area of the big rectangle and the sum of the other (smaller) rectangles we get the total! Dont believe me?
- A + S = 7x + x^2 + 4x + 21
- A + S = T = x^2 + 11x + 21
Answer:
5√2
Step-by-step explanation:
This triangle is a 45 - 45- -90 triangle which is a special trig triangle. This triangle has side lengths which are always the lengths or a a multiple of 1 - 1 - √2.
Since the side length which is longest is 10, this corresponds to the side length √2. Look for a number which when multiplied with √2 gives 10.
√2*√50 = √100 = 10.
The triangle has scaled up the parent triangle by a factor of √50. This means the other sides are 1*√50 = √50 = 5√2
This simplifies to 5√2 since √50 = √25*√2 = 5√2.
Step-by-step explanation:
I think 360-175 iam not sure
Answer:
8-x meters
Step-by-step explanation:
Both 64 and x^2 are perfect squares, since 64=(8)^2 and x^2=(x)^2.
Additionally, 16x is twice the product of the roots of 64 and x^2, since 16x=2(8)(x).
So we can use h the square of a difference pattern to factor:
a^2-2(a)(b)+b^2=(a-b)^2
In this case, a=8 and b=x:
(8)^2-2(8)(x)+(x)^2=(8-x)^2
In conclusion...
64-16x+x^2=(8-x)^2
So the side length of the square is 8-x meters.
Answer:
wasn't sure of what you wanted.
Step-by-step explanation: