Answer:
its also again 40
Step-by-step explanation:
its L angle
Answer:
Step-by-step explanation:
To the nearest 1d.p=3.9
To the nearest hundredth=3.87
L = w - 5
2*l + 2*w = 26
2*(w - 5) + 2*w = 26
2w - 10 + 2w = 26
4w = 36
w = 9
l = w - 5
l = 9 - 5
l = 4
Final Answer:
The rectangle is 4cm long and 9cm wide.
Hope I helped :)
<h3>
Answer: Choice A</h3>
Explanation:
The square root undoes the squaring operation.
Think of a square that is 1 ft by 1 ft. Its area would be 1*1 = 1 sq ft.
Now imagine you told your friend "the area is 1 sq ft" and you didn't relay the side lengths. Your friend would use the square root to find the side length is 1 ft.
I'm not sure why your teacher is using plus minus notation when that is not correct. Saying 
is not true. The result of a square root is simply one value only. If your teacher meant 
, then it would be a true statement; however, there's no need to involve negative numbers for this problem.
6. The answer is A. 3 - 3x
7. The answer is C. -30
8. The answer is B. -11
9. Believe the answer is B. 7xy
10. The answer is A. 48
