Answer:
y=4
Step-by-step explanation:
Answer:
5x-y
Step-by-step explanation:
=2x + 7y + 2x - 8y + x
=2x+2x+x+7y- 8y
=5x-y
hey friend hope it's help you...
Amount of dresses you could make with material and how many marbles can fit into a container.
Answer:
Step-by-step explanation:
Given is the hexagonal pyramid.
We know the radius of the base is same as its side.
<u>Find the base area:</u>
- A = 3√3/2a²
- A = 3√3/2*6² = 54√3
<u>Given the height and radius, find the side of the lateral triangular faces:</u>
Each of 6 triangles have sides 10, 10 and 6 units.
<u>Find the area using heron's formula:</u>
- s = P/2 = (10*2 + 6)/2 = 13
- s - a = s - b = 13 - 10 = 3
- s - c = 13 - 6 = 7
<u>Total surface area:</u>
Correct choice is B