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Allushta [10]
2 years ago
6

Which expression represents the volume of this prism?

Mathematics
2 answers:
Mila [183]2 years ago
8 0

We know for any prism the volume formula is

\\ \tt\hookrightarrow Area\:of\:base\times Height

  • Area of base=1×2=2units

Volume:-

\\ \tt\hookrightarrow 2(8)units^3

Ronch [10]2 years ago
4 0

Answer:

  • Option A

Step-by-step explanation:

<u>We know that:</u>

  • Volume of prism: L x B x H
  • W = 8 units
  • L = 2 units
  • H = 1 unit

<u>Solution:</u>

  • L x W x H
  • => 2 x 8 x 1
  • => 2 x 8
  • => 16 units³

Looking at the options, we can see that our result matches with Option A.

Hence, Option A is correct.

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According to a 2010 study conducted by the Toronto-based social media analytics firm Sysomos, 71% of all tweets get no reaction.
klemol [59]

Answer:

a) the expected number of tweets with no reaction is 71 tweets

b) the variance is 20.59 tweets² ( ≈ 21 tweets )and the standard deviation is

4.537 tweets (≈ 5 tweets)

Step-by-step explanation:

we can use the binomial probability distribution

P(x, N, p ) = N!/[(N-x)!x!] * p^x * (1-p)^(N-x)

where

x = number of successful events

N = population total

p = probability for success for every individual and independent event

P = probability for x successful events

in our case p = 71% = 71/100 (probability of a tweet without reaction) , N = 100 tweets

a) the expected number of tweets

E(x) = N* p = 100 tweets * 71/100 = 71 tweets

b) the variance is

V(x) = N * p * (1-p)

V = 100 * 71/100 * (1-71/100) = 71* 29/100 = 20.59 tweets² ( units of variance are [N²] )

the standard deviation is

s = √V = √20.59 tweets² = 4.537 tweets

6 0
3 years ago
1/3 of a number is 12 less than the number itself
natulia [17]
Let "x" be a substitute for "a number"

1/3(x)=x-12    Multiply by 3
x=3x-36         Get n onto the same side of the equation
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x=18

That's your answer.
5 0
3 years ago
A circle has a radius of 11 inches and a central angle AOB that measures 45°. What is the area of sector AOB? Use 3.14 for pi an
Vesna [10]
The answer is A from what my teacher taught me
7 0
3 years ago
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If 2x-y equals 120, what are the values of x and y?
krek1111 [17]
X=60 and y=20
x and y can be many things that answers the question to 120
5 0
3 years ago
Read 2 more answers
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xenn [34]

Answer:

Fist off composite numbers are whole numbers. And they have at least 3 factors.

Step-by-step explanation:

For example the number 6.

1 X 6= 6

2 X 3= 6

3 X 2= 6

6 X  1=6

It has 4 factors. The factors are 1,2,3,6.

Hope this helped :)

3 0
3 years ago
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