Answer:
sqrt(2^4) sqrt(5)
Step-by-step explanation:
sqrt(80)
sqrt(80) = sqrt(16*5)
We know that sqrt(ab) =sqrt(a) sqrt(b)
sqrt(16) sqrt(5)
sqrt(4*4) sqrt(5)
sqrt(2*2*2*2) sqrt(5)
sqrt(2^4) sqrt(5)
Shorter piece = x
Longer piece = 2x
x + 2x = 33
3x = 33
x = 11 feet
2x = 11 × 2
2x = 22 feet
So one piece will be 11 feet and the other will be 22 feet.
Hope this helps!
<h3>
Answer: 0</h3>
Explanation:
The single digits are {0,1,2,3,4,5,6,7,8,9}
So naturally 0 is the first thing to test.
The number 270 is a multiple of 9 because 9*30 = 270. The digits of 270 add to 2+7+0 = 9 showing that it's a multiple of 9. Refer to the "divisibility by 9 rule".
The next possible value of y will be 9 units higher than y = 0, so we go for y = 9. Meaning that 279 is also a multiple of 9 (because 2+7+9 = 18 is a multiple of 9).
