Given:
19, 180, 181
To be able to determine if the given lengths form a right triangle, the following condition must be met:

Let's check.
a.) At a = 19, b = 180, c = 181

Therefore, the given lengths could form a right triangle at a = 19, b = 180 and c = 181.
The answer is yes.
It just happened to be that we got the right answer on the first try, you must also examine at a = 180, b = 181, c = 19 and a = 181, b = 19, c = 180 if the first try didn't meet the right condition.
If you failed to get, then the given lengths could not form a right triangle. The answer would be no.
Answer:
<h2>31.25% or 1/16 of her test</h2>
Step-by-step explanation:
Step one:
given
let the total amount of her test be x
we are told that she complete 1/8x test in 2/5 of an hour
hence she completed 1/8x in 0.4 hours
let us find the rate at which she completes are test
rate= 1/8x/0.4
convert the numerator to decimal number for easy computation
rate= 0.125x/0.4
rate=0.3125x per hour
Step two:
Hence 1 hour she can finish 0.3125x *1
=0.3125x
She can finish 31.25 % of her test in 1 hour
or 1/16 of her test
Slop: m=y2-y1/x2-x1
m=3-1/3-(-2)
m=2/5
Substitute (3,3) into the formula y=mx+b
3= 2/5•3+b
9/5=b
So y=2/5x+ 9/5
Answer:
X=3/2 or 1.732
Step-by-step explanation:
X^2-4+1=0
Combine like terms
-4 + 1 = -3
X^2-3=0
add 3 to both sides
X^2= 3
X= 3/2