Answer: 
Required theorem:
Pythagorean theorem = 
In other words, one side length squared + another side length squared = the middle lined squared.
Step-by-step explanation:

We can only have a positive distance so your final answer is :

Answer:
2:1
Step-by-step explanation:
The USA has 46 gold medals.
Russia has 24 gold medals.
Your ratio is 46:24.
Simplifying this, you get about 2:1, and that is your answer.
I hope this helped, and if this did please mark this as brainliest! Thank you, and have a good day!
Answer:
A lot
Step-by-step explanation:
Does this girl not have a credit card
Answer:
2x(3+1)
Step-by-step explanation:
Answer:
b. -x + y = 0
Step-by-step explanation:
<u />
<u>Direct variation</u>:
Direct variation means "y varies directly as x”:

where k is the (non-zero) constant of variation.
To determine which of the given equations represents a direct variation, isolate y for each and compare with the <u>direct variation equation</u>.
<u>Equation a</u>

This is not a direct variation equation as there is an addition of -2.
<u>Equation b</u>


This is a direct variation equation where the constant of variation is 1.
<u>Equation c</u>


This is not a direct variation equation as y is <u>inversely proportional</u> to x.
<u>Equation d</u>

This equation does not include the variable x, and so is therefore not a direct variation equation.