The sum of 2fifteens and 10 fifteens​

answer: 4/5

step-by-step explanation:

2/15 + 10/15=12/15=4/5

easy right?

answer:

24.5m

step-by-step explanation:

i know there is an easier way to do but i am gonna show you a way that i can remember best.

first you want to find the height and base. of a square, that is isn't to hard since the height is equal the base.

so, squareroot 300.

which is about 17.3

now we are gonna do the pythagorean theorem.

a^2 + b^2 = c^2

so replace a and b with 17.3

17.3^2 + 17.3^2 = c^2

okay, so now square 17.3-- oh look, we already have it.

300 + 300 = c^2  

300 + 300 = 600 (which now we need to squareroot 600 to get our c alone.

squareroot of 600= 24.5

so it is 24.5m