Answer:
comment what you want the rest of the word problem so I can answer ok.
It should be supplementary angles theorem. 6 and 3 must add to 180 degrees to make a straight line.
To find the length, divide the area by the width:
Length = 20.5 / 2.5 = 8.2 cm
Answer:
7a+2a=9a
Step-by-step explanation:
You distribute the a to each of the numbers in the parenthesis. Which means that you multiply. You should be left with a 7a+2a. Then since 7+2=9, your answer is 9a. So answer 1 is correct because they do these exact steps.
Surface Area of Cube = width^2 * 6 (sides of the cube)
Therefore, (3.5)^2 * 6 =
73.5 [whatever units]^2
