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bekas [8.4K]
3 years ago
7

Cos(-25°) = cos25° really need help with this

Mathematics
1 answer:
kolezko [41]3 years ago
8 0
Cos25=cos_rad(((5*pi)/36)) is your answer.
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There are 3 bones in a cat for every 4 bones in a dog. The cat has 240 bones. How many bones does the dog have?
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the dog has 320 bones :)

Step-by-step explanation:

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If Clarie bikes at an average speed of 7
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2 years ago
Solve.
Serhud [2]

Answer:

Step-by-step explanation:

12.9 + 10.2x = 35.1

10.2x = 35.1 - 12.9

10.2x = 22.2

x = 22.2/10.2

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What is the volume of a hemisphere with a radius of 26.7 m, rounded to the nearest tenth of a cubic meter?
attashe74 [19]

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39,865.1m^3

Step-by-step explanation:

a hemisphere is half a sphere.

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V=\frac{4\pi r^3}{3}

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Since the radius is:

r=26.7m

substituting this into the formula for volume:

V=\frac{4\pi (26.7m)^3}{3} \\\\V=\frac{4(3.1416)(19,034.163m^3)}{3} \\\\V=79,730.12m^3

this is the volume of the total sphere, thus the volume of a hemisphere is:

\frac{V}{2}=\frac{79,730.12m^3}{2}\\  =39,865.06m^3

rounding to the nearest tenth:

39,865.1m^3

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3 years ago
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x=\frac{33}{7}

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Therefore, we have:

\frac{11}{11+x}=\frac{14}{20},\\14(11+x)=20\cdot 11,\\11+x=\frac{20\cdot 11}{14},\\x=\frac{110}{7}-11=\boxed{\frac{33}{7}}

3 0
3 years ago
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