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Agata [3.3K]
3 years ago
11

What is 3w(2+4x-5+y)

Mathematics
1 answer:
Mkey [24]3 years ago
3 0

Answer:

-9w+12wx+3wy

Step-by-step explanation:

just distribute 3w through the parentheses

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Which statement is true about the marginal frequencies
Tcecarenko [31]

Answer:

D

Step-by-step explanation:

If U add up all the people who played sports and all the 10th graders u will get 191 and 97 and it just said I got it right

3 0
3 years ago
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Which of these figures has rational symmetry?
Nana76 [90]

Answer:

a is the answer parallelogram is a rotational symmetry

4 0
3 years ago
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The number of typing errors made by a typist has a Poisson distribution with an average of seven errors per page. If more than s
Aleks [24]

Answer:

0.599  is the probability that a randomly selected page does not need to be retyped.

Step-by-step explanation:

We are given the following in the question:

The number of typing errors made by a typist has a Poisson distribution.

\lambda  =7

The probability is given by:

P(X =k) = \displaystyle\frac{\lambda^k e^{-\lambda}}{k!}\\\\ \lambda \text{ is the mean of the distribution}

We have to find the probability that a  randomly selected page does not need to be retyped

P(less than or equal to 7 mistakes in a page)

P( x \leq 7) = P(x =1) + P(x=1) +...+ P(x=6) + P(x = 7)\\\\= \displaystyle\frac{7^0 e^{-7}}{0!} + \displaystyle\frac{7^1 e^{-7}}{1!} +...+ \displaystyle\frac{7^6 e^{-7}}{6!} + \displaystyle\frac{7^7 e^{-7}}{7!} \\\\= 0.59871\approx 0.599

Thus, 0.599  is the probability that a randomly selected page does not need to be retyped.

4 0
3 years ago
10) Which has the lowest price per ounce?<br><br>please refer to the chart above &lt;3​
melisa1 [442]

Answer:

The lowest price per once is: "Don's store" $ 0.101

Step-by-step explanation:

You have to apply a 3 way rule

so:

1) 60 oz ----- $6.50

1 oz    ----- =(1 oz X $6.50)/ 60

                = $0.108

2) 54 oz ----- $5.50

    1 oz    ----- =(1 oz X $5.50)/ 54

                = $0.101

3) 48 oz ----- $5.61

      1 oz    ----- =(1 oz X $5.61)/ 48

                = $0.116

4) 40 oz ----- $4.50

      1 oz    ----- =(1 oz X $4.50)/ 40

                = $0.112

Greetings

8 0
3 years ago
Simplify the radical expression: √20+6√5
PolarNik [594]
<span>√20 + 6√5
= </span><span>√(4 * 5) + 6√5
= 2</span><span>√5 + 6√5
= </span>√5 (2 + 6)
= 8√5

Hope it helps
6 0
3 years ago
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