Answer:
The correct option is;
C. 52.2 × 4.4 × 2 + 47.8 × 4.4 × 2
Step-by-step explanation:
The area of the square frame is the area of the inner square subtracted from the area of the outer square
Which gives;
52.2² - 47.8² = 440
Therefore;
Option A. 52.2² - 47.8² is a correct way of finding the area of the square frame
Option B. 2 × ((52.2×2.2) + (47.8×2.2)) = 440, is a correct way of finding the area of the square frame
Option C. 52.2 × 4.4 × 2 + 47.8 × 4.4 × 2 = 880, is not a correct way of finding the area of the square frame
The error is the thickness is 2.2 not 4.4
Option D. 100×(52.2 - 47.8) = (52.2 + 47.8) × (52.2 - 47.8) = 52.2² - 47.8² = 440, is a correct way of finding the area of the square frame
Answer:
5%
Step-by-step explanation:
so basically we know in 3 years she spent 390 dollars
so 390 divided by 3 is 130
so all we need to do is find this:
130 is what percent of 2600
so the final answer is 5%
37
Step-by-step explanation:
21 + 16
HOPE THIS HELPS!
Answer:
<h2>22
<em> </em><em>feet</em><em> </em><em>below</em></h2>
Step-by-step explanation:
<h2>Total down 20+9=29</h2><h2>Total up =7</h2><h2>Net = 29-7=22feet</h2>
Answer: x = 483
21 times 23 is 483
483/21 = 23
Step-by-step explanation:
