3 years ago

How many vertices does a cube have

Mathematics

2 answers:

Phoenix [80]3 years ago

5 0

A cube has 8 vertices

PolarNik [594]3 years ago

4 0

A cube has 8
A square has 4

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Step-by-step explanation:

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Can a trapezoid have congruent diagonals?

Maslowich

Answer:

Yes

Step-by-step explanation:

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3 years ago

Cindy can type 65 words per minute. David can type 75 words per minute. In 7 minutes, how many more words can David type than Ci

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Answer:

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Hope this helped!

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3 years ago

Approximately 18% of the population of California is 70 years or older. In a random sample of 4, what is the provability for 3 o

Semmy [17]

Answer:

The correct response will be "0.01913".

Step-by-step explanation:

According to the question,

p - P(70 years or older)

= 0.18

n = 4

X = no. of individuals who are older than 70 years

Now,

∴ $P(X=r)=n_C_r \ p^r(1-p)^{n-r}$

∴ $P(X=3)=4_C_3(0.18)^3(1-0.18)^{4-3}$

$=4\times (0.18)^3(0.82)^1$

$=0.01913$

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3 years ago