Answer:
38 feet
Step-by-step explanation:
P(x) = ℓ(x) + ℓ(x) + w(x) + w(x)
= x + x + (4x - 1) + (4x - 1)
= (x + x + 4x + 4x) + (-1 -1)
= 10x - 2
P(4) = 10(4) -2 = 38
The perimeter is 38 feet when the length is 4 feet long, so Cho will need to
cover 38 feet with garden stones.
Answer:
c) 1.2 mm, 1.6 mm, 2 mm
Step-by-step explanation:
In order to find which sides equal a right triangle, you need to use the Pythagorean Theorem:
Set up the equation with the first numbers. The two shorter sides (legs) are A and B, and the longest side (hypotenuse) is C.
=
Since the two sides are not equal, the first option is not a right triangle.
When you follow these steps with the remaining three options, you'll find that the third option (C) makes a right triangle.
Hope this helps, have a nice day!