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Kay [80]
3 years ago
6

Find the volume of a regular triangular pyramid if it has height h=12 cm, base edge b=10 cm and height of the triangular base hb

≈ 8.7 cm.
Mathematics
1 answer:
zzz [600]3 years ago
8 0

Answer:

it's 174

Step-by-step explanation:

Area of the base is .5 * 10 * 8.7 = 43.5

 

Volume = (1/3) * 43.5 * 12 = 174

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Simplify: sec(θ) sin(θ) cot(θ)
krek1111 [17]

We have to simplify

sec(θ) sin(θ) cot(θ)

Now first of all let's simplify these separately , using reciprocal identities.

Sec(θ) = 1/cos(θ)

Sin(θ) is already simplified

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Let's plug these values in the expression

sec(θ) sin(θ) cot(θ)

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sin cancels out with sin and cos cancels out with cos

So , answer comes out to be

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3 years ago
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Lady_Fox [76]
There are a lot of things that are equivalent to 16/81.

16/81 = 0.197530864

Or we can keep multiplying 2 to the numerator and denominator:

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3 years ago
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What is 1/8 - 7/8 ? ( its a fraction)
kap26 [50]

Answer:

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Step-by-step explanation:

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In a class no of girls is 11 more than the no of boys .If the total no.of students in the class is 55 how many are girls?
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Answer: There are 33 girls in the class

Step-by-step explanation:

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So the answer would be 7/30 because 3/5 + 1/6 = 23/30 and you add 7 to that and get 30 well that’s what I believe hope this helped
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