Answer:
DBE = 33
Step-by-step explanation:
add 23 + 27 = 50
subtract 50 from 83
equals 33
Answer:
12.5 pi or 39.26990
Step-by-step explanation:
First we can find the radius, which is half the diameter, 5 feet. To find the area of a semi-circle we would find the area of the circle and then divide by 2:
![\frac{\pi r^2}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Cpi%20r%5E2%7D%7B2%7D)
We can substitute what we have:
![\frac{25\pi }{2}](https://tex.z-dn.net/?f=%5Cfrac%7B25%5Cpi%20%7D%7B2%7D)
This gives us:
12.5 pi or 39.26990(Not sure what format you need it in)
84 days will pay before they both do their chores again on the same day.
<span>
<span>
</span><span><span>
Ross mows the lawn
<span> Annie bathes the dog </span>
</span>
<span>
12 x
1 =
12 21 x 1 = 21
</span>
<span>
12 x 2 = 24 21 x 2 = 42
</span>
<span>
12 x 3 = 36 21 x 3 = 63
</span>
<span>
12 x 4 = 48 21 x 4 = 84
</span>
<span>
12 x 5 = 60
21 x 5 = 105
</span>
<span>
12 x 6 = 72 21 x 6 = 126
</span>
<span>
12 x 7 =
84 21 x 7 = 147
</span>
<span>
12 x 8 = 96 21 x 8 = 168
</span>
<span>
12 x 9 = 108 21 x 9 = 189
</span>
<span>
12 x 10 = 120 21 x 10 = 210
</span></span></span>