Answer:
[-8,8]
Step-by-step explanation:
Just use the Pythagorean Theorem
(9 +x)^2 = 15^2 + x^2
x^2 + 18x + 81 = 225 + x^2
18x = 144
x = 8
So the three sides of the triangle are
15, 8 and 17
Answer:
13 and 15
Step-by-step explanation:
13 and 15 are consecutive odd numbers and
13 + 15 = 28
Answer:
It takes 6 men 3 days to lay the foundations of a building of size 30m^2
.
On one site they have to lay the foundations of a building of size 50m2 and it needs to be completed in 2 days.
How many men will they need?
Step-by-step explanation:
One board is 31.5 inches long. all the boards together is 157.5 inches long
