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Pavel [41]
4 years ago
8

(c-4)d distributive property

Mathematics
1 answer:
aliina [53]4 years ago
4 0

You get (c-4)d = cd - 4d.

You have to "distribute" the d to the c and the 4.

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You have a bag full of apples. There are 8 Jonathan (red), 4 Granny Smith (green), and 5 Golden Delicious (yellow) apples in the
vredina [299]

Answer:

Step-by-step explanation:

There are 8 Jonathan (red), 4 Granny Smith (green), and 5 Golden Delicious (yellow) apples in the bag.

a) Select 3 apples with replacement. Find the probability that all there are green.

  • Given that we are taking all apples with replacement, the probability of getting a green apples remains the same in all 3 trials. Therefore the probability here is computed as:

  • = (Number of green apples/Total apples)
  • = (4/17)^3
  • = 0.0130

Therefore 0.0130 is the required probability here.

b) Select 3 apples with replacement. Find the probability that none are red

Probability that none are red is computed here as:

  • = (Number of non red apples/Total apples)
  • = (9/17)^3
  • = 0.14838

Therefore 0.14838 is the required probability here

c) Select 4 apples with replacement. Find the probability that you get at least 2 red apples

  • Probability that we get at least 2 red apples when 4 apples are drawn is computed here as:
  • = 1 - (Probability that no red apple is taken out when 4 apples are taken out + Probability that 1 red apple is taken out when 4 apples are taken out)
  • = 1 - 8C0 x 9C4 + 8C1 x 9C3 / 17C4
  • = 1 - 0.3353
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Therefore 0.6647 is the required probability here

d) Select 2 apples with replacement. Find the probability that the second apple is yellow given that the first apple is red.

  • Given that the first apple is red, we are left with 16 apples out of which 5 are yellow. Therefore the required probability here is computed as:
  • = 5/16
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Therefore 0.3125 is the required probability here

3 0
3 years ago
Suzy found the difference of x and 4 and then divided by 2. Write an algebraic expression to represent this word phrase.
gtnhenbr [62]

Answer: \dfrac{(x-4)}{2}

Step-by-step explanation:

In algebra , We use algebraic expression to represent word phrase.

For example : 7 is added to p is written as " 7+p "

-8 is multiplied by p  is written as " -8p "

The statement : Suzy found the difference of x and 4 and then divided by 2.

First we express the difference of x and 4 as (x-4)

Then, we express entire statement : "difference of x and 4 and then divided by 2" =\dfrac{(x-4)}{2}

Hence, the algebraic expression to represent this word phrase:  \dfrac{(x-4)}{2}

4 0
4 years ago
What is y = -2x - 9 I am confused
gizmo_the_mogwai [7]

Answer:

its a line on the graph. point at (0,-9) and you move down 2 and 1 to the right and repeat To continue the line start at (0,-9) again and move up to and 1 to the left and repeat. Did that answer your question?

Step-by-step explanation:

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myrzilka [38]
C is the correct answer I believe

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