Answer:
96
Step-by-step explanation:
Answer:

Step-by-step explanation:
Pythagorean Theorem:

where a and b = legs and c = hypotenuse
we are given a leg and the hypotenuse so we plug in what we have into the formula
now we solve for b
step 1 subtract 20^2 from each side

finally we want to get rid of the exponent on the b
to do so we take the square root of each side

we're left with b = 21
Note: They Pythagorean theorem only works with right triangles
Answer:
scatter plot 3
Step-by-step explanation:
No correlation exists when there is no relationship between two variables. For example there is no relationship between the x-axis to the y-axis while the other plots has noticeable linear correlation.
Answer:

Step-by-step explanation:
we have

step 1
Eliminate the parenthesis

The symbol of the term 3x is incorrect, must be positive instead of negative
so

Group terms that contain the same variable

Combine like terms
