-3x=y -9x-5y=-48 system of substitution

isocolese triangle

we know that the line connect a and b is the hyptonuse

so first find the hypotonuse length using the distance formula, call the length c

since it is an isocolese triangle, the lengths of the legs are the same

using pythagorean theorem,

in this case, a=b since isocolese triangle so we get

or

we can find c so we can find the distances

we know that if we draw 2 circles, each has center at a and b, and find where they intersect, we can the 2 possible locations for c

if a has center at (xa,ya) and b has center at (xb,yb), then we can solve where

and

intersect to find where they intersect

i'm not going to put an example because i have to go to class. i hope this explanation is enough

question

why are the following expressions not monomials?

1) 3cd^x

a. the variable is in the denominato

2) x+2w

c. the expression is not a product.

3) 3/h

a. the variable is in the denominator

4) ab^-1

c. the expression is not a product.

hope this !