Answer:
-1 2/3
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
The pythagorean theorem states that

So 
You would then do

Because a square root is the opposite of a square.

because 20 * 20 = 400
Answer:
Circle/ellipse/rectangle
Step-by-step explanation:
Answer:
1/3
Step-by-step explanation:
1 rise
3 run
36, 43, 50, 57, 64
36 and 64 are two standard deviations out, so the empirical rule tells us 95% of scores will fall here with a normal distribution