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Schach [20]
3 years ago
10

Find the area of the shaded region. Use 3.14 for pi.

Mathematics
1 answer:
o-na [289]3 years ago
7 0

Answer:

50.88

Step-by-step explanation:

( 3.14 × (8/2)² ) / 2 = 25.12

{ 8 × (15-4) } / 2 = 44

( 15 × 8 ) - ( 25.12 + 44 ) = 50.88

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Find the coordinates of the y-intercept and x-intercepts of the following. (image!)
marissa [1.9K]

Answer:

Step-by-step explanation:

We can do this  a couple of ways. We can graph it -- see below. Or we can do the math.

Math

y = x^2 - 2x - 15

This trinomial factors into

y = (x - 5)(x + 3)

from which

x - 5= 0

x = 5

and

x + 3 = 0

x = - 3

The y intercept is the value obtained when all the xs on the right = 0

y = 0^2 - 2*0 - 15

y = - 15

<em>Answer</em>

  • x intercepts: (-3,0),(5,0)
  • y intercept: (0,-15)

The graph is below.

4 0
2 years ago
Find the area of the shaded regions. Give your answer as a completely simplified exact value in terms of pi (no approximations)
Kisachek [45]

Answer:

40π in^2

Step-by-step explanation:

360°/72°=5

so, each of the two shaded regions are 1/5 of the circle.

the formula for finding the area of a circle is πr^2, so:

area for one of the shaded regions:

1/5πr^2

1/5π(10)^2

1/5π100

20π in^2

this means that the area for one of the shaded regions is 20π. however, since there are two of them:

2(20π)=40π

so, the area of the shaded regions is 40πin^2

5 0
3 years ago
Are they simular and why​
S_A_V [24]

Answer:

YES

Step-by-step explanation:

because there the same shape but the right one is moved to the side a little bit

4 0
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iragen [17]

Answer: 0.9

Step-by-step explanation:

3 0
3 years ago
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Answer:

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Step-by-step explanation:

6 0
3 years ago
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