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Sonbull [250]
3 years ago
8

Work out the area of this semi circle

Mathematics
2 answers:
Phantasy [73]3 years ago
8 0

Answer:

15.71

Step-by-step explanation:

10*3.142=31.42

31.42/2=

15.71

Serhud [2]3 years ago
7 0

Answer:

39.28cm^2

Step-by-step explanation:

area of the circle = 3.142 × radius^2

= 3.142 × 5^2

= 78.55cm^2

area of the semi circle = 1/2 × 78.55

= 39.28cm^2

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3 years ago
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Solve for the following inequality: -7x - 15 <20
gregori [183]

Answer:

x>-5/7

Step-by-step explanation:

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Help please ...........<br>number 13, 14, 15<br>​
AfilCa [17]

Answer:

13.  108 inches

14.  not similar (sides have different ratios)

15.  68

Step-by-step explanation:

13. You have two relationships between length and width:

  2L + 2W = 336 . . . . . the perimeter is 336 inches

  L/W = 9/5 . . . . . . . . . .the ratio of length to width is 9/5

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  5/9L = W

Now we can substitute that into the first equation to get ...

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Multiplying by 9 gives us ...

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And dividing by 28 gives ...

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14. Shortest to longest, the ratios of sides are 6 : 8 : 9 and 2 : 4 : 5. There is no value that will multiply the first ratio to give the second ratio. For example, multiplying by 1/3 gives ...

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Similar triangles have the same side ratios. These do not, so they are not similar triangles.

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15. MP is a midsegment of triangle JKL and parallel to base JL. A midsegment is half the length of the parallel base. Then JL is twice as long as MP. JL is 68 units long.

3 0
3 years ago
Hello, please help thank youu!!
uranmaximum [27]

Answer:

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(16\frac{1}{2}) + <u>(10 ÷ </u>\frac{1}{2}<u>)</u>

<u>(16</u>\frac{1}{2}<u>) + (20)</u>

36 \frac{1}{2}

7 0
3 years ago
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kumpel [21]

Answer:

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Step-by-step explanation:

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This does not factor into anything very nice.

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3 years ago
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