Answer:
4√2 or 5.66
Step-by-step explanation:
x² + x² = 8²
=> 2x² = 64
=> x² = 32
=> x = √32 = 4√2 or 5.66
Need to find:
- Perimeter of new square formed?

Solution:
- Side of smaller square = 3cm.
- Side of Bigger square = 9cm

Using formula:
- Perimeter of square = 4 × side

<u>Perimeter of smaller </u><u>square:</u>
⟹ 4 × 3
⟹ 12 cm

<u>Perimeter of Bigger square:</u>
⟹ 4 × 9
⟹ 36cm

Perimeter of new square = Perimeter of Bigger square - Perimeter of smaller square
⟹ 36 - 12
⟹ 24 cm

∴ Perimeter of new square formed is 24 cm.
The given formula above, y = -x, is a sample of a function. A function is an equation that would give only one value of y for every value of x. This is the same as saying that exactly one output is set by each input. If we take x = -1, the value of y is 1 and nothing else.
It's a cube so x should also equal 6