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Fynjy0 [20]
3 years ago
14

the movie shop sells posters for $7 dvd for $15 and cd for $9 write an expression to represent the total cost for 2 posters d dv

d and c cds
Mathematics
1 answer:
Nat2105 [25]3 years ago
3 0
Try (7x2)+d+c
I hope this helped?
If not maybe, 14+d+c?
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n200080 [17]

Answer:

30

Step-by-step explanation:

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Amanda has an envelope that is 2 1/4 inches tall. The envelope is 4 1/3 times as long as it is tall. How long is her envelope?
Sidana [21]

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its 2 1/2 its width

Step-by-step explanation:

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The acceleration of an object due to gravity is 32 feet per second squared. What is acceleration due to gravity in inches per se
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Matt and Ryan are playing an exciting round of Rock Paper Scissors: The Collectible Card Game. Matt is convinced that Rock can b
kiruha [24]

Using the hypergeometric distribution, there is a 0.1786 = 17.86% probability that Ryan beats Matt in a landslide by choosing 3 Paper cards in a row.

<h3>What is the hypergeometric distribution formula?</h3>

The formula is:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}

C_{n,x} = \frac{n!}{x!(n-x)!}

The parameters are:

  • x is the number of successes.
  • N is the size of the population.
  • n is the size of the sample.
  • k is the total number of desired outcomes.

For this problem, we have that Ryan will win if he takes 3 Paper cards from a set of 8(5 paper and 3 scissors), hence the parameters are given as follows:

N = 8, k = 5, n = 3, x = 3.

Hence the probability is given by:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}

P(X = 3) = h(3,8,3,5) = \frac{C_{5,3}C_{3,0}}{C_{8,3}} = 0.1786

0.1786 = 17.86% probability that Ryan beats Matt in a landslide by choosing 3 Paper cards in a row.

More can be learned about the hypergeometric distribution at brainly.com/question/24826394

#SPJ1

4 0
1 year ago
What's the amount of the vega's March bill?
zzz [600]

Answer:

1,000 + 50= 1,050

400 + 15= 430

15 x 2 = 30

Their bill would be 1,050 + 430= 11480


Step-by-step explanation:


6 0
3 years ago
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