X² = 17
To simplify this, you need to find the square root of x², which is x, and the square root of 17.
x = √17
Also remember that when you are using square root, the answer can be either positive or negative.
x = +/-√17 ≈ +/- 4.12
Answer:
27.91, 12, 58.33
Step-by-step explanation:
I did the khan academy
Assume total = x
12% of x = 36
→ 12% * x = 36
→ 0.12x = 36
→ x = 300
so the answer is 300
Step-by-step explanation:
the answer is in the image above
Answer:
Part 1) 
Part 2) 
Step-by-step explanation:
we know that
A cube has six equal square faces
A cross-section perpendicular to one face of the cube is equal to a square
see the attached figure to better understand the problem
Part 1) Find the area of the cross section
The area of the square is

where
b is the length side of the square
we have

substitute


Part 2) Find the perimeter of the cross section
The perimeter of the square is

where
b is the length side of the square
we have

substitute

