Answer:
A and B
Step-by-step explanation:
we would like to solve the following equation:

to do so isolate -x to the left hand side and change its sign:

simplify addition:

square both sides:

simplify square of the right hand side:

use (a-b)²=a²-2ab+b² to expand the left hand side:

swap the equation:

isolate the right hand side expression to the left hand side and change every sign:

simplify:

rewrite the middle term as 13x-2x:

factor out x:

factor out -2:

group:

by <em>Zero</em><em> </em><em>product</em><em> </em><em>property</em> we obtain:

solve for x:

to check for extraneous solutions we can define the domain of equation recall that a square root of a function is always greater than or equal to 0 therefore

solve the inequality for x:

since 2 and -13 is less than 5 both solutions are valid for x hence,

and we're done!
Step-by-step explanation:
you multiply both sides by the same factor, so that the main message or information, the ratio, stays the same :
3:6 × 2/2 = 6:12
3:6 × 1/3 / 1/3 = 1:2
3:6 × 4/3 / 4/3 = 4:8
3:6 × 100/100 = 300:600
so, these are all equivalent ratios. and there are infinitely more, as you can see.
Answer:
a, c, d, f for sure has a hypotenuse but id-k if e would count
Step-by-step explanation: