(-3)^2+8(-3)-7
9-24-7
= -22
Your answer is -22.
Answer: -120
<em>Hope this helps!!</em>
Answer:
The step 4 and 5 describe the errors Stephen made.
Step-by-step explanation:
Given : Stephen evaluated . His work is shown below.
To find : Which two statements describe the errors Stephen made?
Solution :
Step 1 -
Step 2 -
Step 3 -
Step 4 -
Error is the step as 4 sign is negative.
So correct step is
Step 5 -
Error is the step as there is 4 in place of 3.
So correct step is
The step 4 and 5 describe the errors Stephen made.
The area of a regular octagon is:
A = a * P / 2, where a is an apothem and P is a perimeter.
P = 8 * 8 m = 64 m
A = 9.7 m * 64 m / 2
A = 620.8 / 2 m²
A = 310.4 m²
Answer:
The area of a regular octagon is 310.4 m².
Hope this helps!
The perimeter is 123 ft. Because 29 plus 41 plus 24 plus 12 plus 17 equals 123. You add all of the numbers on the outside to get perimeter.
The Area is 781 ft. Because you have to split the shape into normals shapes like two rectangles and then multiply the outside numbers so
17 times 29 equals 493 and 24 times 12 equals 288. 493 plus 288 equals 781 which is the area