3 years ago

What is the minimum number of triangular faces a pyramid has to have?

1 answer:

5 0

There are four triangles in a pyramid with a square or rectangle base and five triangles in a pyramid with a triangular base.

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dangina [55]

Answer:

Step-by-step explanation:

It being whole numbers and decimals

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3 years ago

goldenfox [79]

Dimensions please? Hahaha :')

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3 years ago

Soloha48 [4]

Answer:

Step-by-step explanation:

Given

$P_1=$ Probability of clearing exam in 1 st attempt=0.5

$P_2=$ Probability of clearing exam in 2 nd attempt=0.7

$P_3=$ Probability of clearing exam in 3 rd attempt=0.8

Probability that she passes the exam $=P(1 st\ attempt)+P(1\ fail)\cdot P(2\ pass)+P(1\ fail)\cdot P(2\ fail)\cdot P(3 rd pass)$

$P=0.5+0.5\times 0.7+0.5\times 0.3\times 0.8=0.97$

(b)P(Pass qualification on 2nd try|passes qualification)

P(Pass qualification on 2nd try|passes qualification) $=\frac{P(fail\ on\ 1 )\cdot P(pass\ in\ 2nd)}{P(passes)}$

P(Pass qualification on 2nd try|passes qualification) $=\frac{0.5\times 0.7}{0.97}=0.3608$

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3 years ago

tatiyna

Answer:

w is the variable

Step-by-step explanation:

the letters you see next to the numbers the variable.

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2 years ago

irakobra [83]

Step-by-step explanation:

it think it will help you

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3 years ago