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ch4aika [34]
3 years ago
12

In circle E with m DEF 36 and DE = 3 units find area of

Mathematics
1 answer:
deff fn [24]3 years ago
4 0

Answer:

A ≈ 2.83 units²

Step-by-step explanation:

The area (A) of the sector is calculated as

A = area of circle × fraction of circle

   = πr² × \frac{36}{360}

   = π × 3² × \frac{1}{10}

    = \frac{9\pi }{10}

   ≈ 2.83 units² ( to the nearest hundredth )

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alexandr1967 [171]

Answer:

3).

- 4y = 8x \\  \frac{y}{x}  =  \frac{8}{ - 4}  \\  \frac{y}{x} =  - 2 \\ y =  - 2x \\ hence \: constant \: is \:  - 2

4).

y \alpha x \\ y = kx \\ where \: k \: is \: the \: constant \: of \: proportionality \\ when \: y = 24 \: and \: x = 8 \\ substitute \: in \: y = kx \\ 24 = 8k \\ k =  \frac{24}{8}  \\ k = 3 \\ value \: of \: constant = 3

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5).

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7 0
3 years ago
A printing company charges $42 plus $0.05 per page. Another company just charges $0.08 per page. How many pages are in an order
Nookie1986 [14]
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3 years ago
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Answer:

Center: (-1,8)

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The graph is attached.

Step-by-step explanation:

The equation of the circle has the form:

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Where (h,k) is the  point of the center of the circle and r is the radius of the circle.

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(x +1)^{2}+(y-8)^{2}=1

 Therefore:

h=-1

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 Then, the center is (-1,8) and radius is 1.

You can graph the circle with its center at the (-1,8) and a radius of 1 as you can see in the figure attached.

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