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nika2105 [10]
3 years ago
8

Help plz, its calculating area of a cricle​

Mathematics
2 answers:
kiruha [24]3 years ago
7 0

Answer:

1. 1385.44

2. 2463.01

Masteriza [31]3 years ago
6 0

Answer:

1. 1,385.442 , 2. 2,463.009  , 3. 7,542.964  , 4. 346.361

Step-by-step explanation:

pls mark brainiest!

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F(x)=-1/2(x-2)^2-4 <br> Graph the function
telo118 [61]

Answer:

  see below

Step-by-step explanation:

The function is written in vertex form. It has a negative vertical scale factor, so you know ...

  • the vertex is (2, -4)
  • the vertical scale factor is 1/2
  • the parabola opens downward

Vertex form is ...

  f(x) = a(x -h)^2 +k . . . . . . . . . . vertical scale factor "a", vertex (h, k)

__

Since you know the vertex and scale factor, you can plot some points on the graph. I find it convenient to think in terms of units either side of the vertex. These are values of x that would make (x-2)^2 be 1^2, 2^2, 3^2, 4^2 and so on. The vertical scale factor of -1/2 tells you that the y-differences for these points will be -1/2, -4/2, -9/2, -16/2 from the vertex. Then we have ...

  vertex: (2, -4)

  1 unit either side of the vertex: (1, -4.5), (3, -4.5)

  2 units either side of the vertex: (0, -6), (4, -6)

  3 units either side of the vertex: (-1, -8.5), (5, -8.5)

  4 units either side of the vertex: (-2, -12), (6, -12)

You can plot these points and draw a smooth curve through them. Or, you can let a graphing calculator do it. The result will be similar to that shown below.

6 0
3 years ago
3tenths - 3 twentieth​
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Answer:

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Step-by-step explanation:

Given expression

3 tenths- 3 twentieth

⇒

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Therefore value of given expression is 0.15

7 0
3 years ago
Find the missing side lengths. Leave your answer as radicals in simplest form.
inn [45]

Answer:

Solution given:

b=9 base side of isosceles triangle

a=\sqrt{9²+9²}=9\sqrt{2}

7 0
3 years ago
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