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timofeeve [1]
3 years ago
11

Can somebody please help me? I don't understand this!

Mathematics
1 answer:
Xelga [282]3 years ago
5 0
Use the base of the triangle as the diameter, which in this case is 16, divide it by 2, which is 8, and then square it, which is 64, and multiply by Pi (64 times Pi is 200.96) so you can find the area of the whole circle which is 200.96ft^2. Since this is an equilateral triangle, the height might be 16, so using the area of a triangle, A=BH times 1/2, We multiply 16 by 16 which is 256. 256 times 1/2 is 128. So the area of the triangle will be 128ft^2. We then subtract our areas, 200.96-128 which is 72.96. Then therefore the area of the circle will be 72.96ft^2. I may be wrong, but this is what I think.
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A structure covering a sports practice field has the shape of half of a cylinder, as shown. What is the total surface area of th
hoa [83]

wait i dont know why it wont let me comment or see comments but wheres the picture?

3 0
2 years ago
A segment with endpoints A (3, 4) and C (5, 11) is partitioned by a point B such that AB and BC form a 2:3 ratio. Find B.
Dima020 [189]

Answer:

(3.8, 6.8)

Step-by-step explanation:

Point B:

Has coordinates (x,y)

AB and BC form a 2:3 ratio.

This means that:

B - A = \frac{2}{2+3}(C - A)

B - A = \frac{2}{5}(C - A)

We apply this both for the x-coordinate and for the y-coordinate.

x-coordinate:

x-coordinate of A: 3

x-coordinate of C: 5

x-coordinate of B: x

B - A = \frac{2}{5}(C - A)

x - 3 = \frac{2}{5}(5 - 3)

x - 3 = \frac{4}{5}

x = 0.8 + 3 = 3.8

y-coordinate:

y-coordinate of A: 4

y-coordinate of C: 11

y-coordinate of B: y

B - A = \frac{2}{5}(C - A)

y - 4 = \frac{2}{5}(11 - 4)

y - 4 = \frac{14}{5}

y = 2.8 + 4 = 6.8

Thus the correct answer is:

(3.8, 6.8)

7 0
3 years ago
Read 2 more answers
Please show your work
Effectus [21]
Here hope this help the solution is X= -2 and y=9

4 0
2 years ago
A book costs $ 25.Marilyn bought the book during a sale 15% discount. How much did she pay for the book
blondinia [14]
The price of the discount is $25 x 0.15 = $3.75
The price of the book with discount is $25 - $3.75 = $21.25

5 0
3 years ago
Write the slope-intercept form of the equation of each line. X-3y=6
Alecsey [184]
<span>x -3y=6
3y = x - 6
  y = x/3 - 2

answer
</span>slope-intercept form of the equation:  y = x/3 - 2
4 0
3 years ago
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