Answer:

Step-by-step explanation:
We have to find the sum of two numbers following the steps as described in the question.
The question is in the form of fill in the blanks.
Now, the given sum is
=
=
=
=
(Answer)
Answer:
3x(3x + 2)
Step-by-step explanation:
(4x2 - 2x) - (-5x2 - 8x)
= 4x2 - 2x + 5x2 + 8x.
= 4x2 + 5x2 - 2x + 8x.
= 9x2 + 6x.
= 3x(3x + 2).
I hope it is right.
Answer:
546
Step-by-step explanation:
Surface Area = 2(lw + lh + wh)
plug in 21 10.5 and 2.5
Answer:
I think −
4
⁴ − 5
²
Step-by-step explanation:
I might be wrong.
Answer: Line of best fit refers to a line through a scatter plot of data points that best expresses the relationship between those points. A straight line will result from a simple linear regression analysis of two or more independent variables.
Step-by-step explanation: