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3 years ago

What is 12(6+9m) simplified

Mathematics

2 answers:

Korvikt [17]3 years ago

7 0

Answer: the answer would be 12(15m)

Step-by-step explanation:

12 x (6 + 9)

(6 + 9) = 15

15 x 12

12(15m)

Alex3 years ago

5 0

Answer:

12(6+9m)

therefore we multiple the 12 by the numbers in the blaket

72+10m

that's the correct answer

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24 - 3 1/3<br> please help!!

strojnjashka [21]

20 and 2/3 is correct, I think

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3 years ago

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zzz [600]

Answer:

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Step-by-step explanation:

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3 years ago

Suppose you want to eat lunch at a popular restaurant. The restaurant does not take reservations, so there is usually a waiting

grin007 [14]

Answer:

a) $z_1 =\frac{20-19}{4} =0.25$

$z_2 =\frac{15-19}{4} =-1$

And we can use the complement rule and we got:

$P(z>0.25)=1-P(z$

$P(z>-1)=1-P(z$

And replacing we got:

$P(X >20| X>15)= \frac{0.401}{0.841}= 0.477$

b) $z_1 =\frac{20-19}{4} =0.25$

$z_2 =\frac{18-19}{4} =-0.25$

And we can use the complement rule and we got:

$P(z>0.25)=1-P(z$

$P(z>-0.25)=1-P(z$

And replacing we got:

$P(X >20| X>18)= \frac{0.401}{0.599}= 0.669$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the length of time waiting to be seated of a population, and for this case we know the distribution for X is given by:

$X \sim N(19,4.0)$

Where $\mu=19$ and $\sigma=4.0$

Part a

For this cae we want to find this probability:

$P(X >20| X>15)$

And if we use the conditional probability formula we got:

$P(X >20| X>15)= \frac{P(X >20 \cap X>15)}{P(X>15)}=\frac{P(X>20)}{P(X>15)}$

We can solve the problem using the z score formula given by:

$z = \frac{x-\mu}{\sigma}$

$z_1 =\frac{20-19}{4} =0.25$

$z_2 =\frac{15-19}{4} =-1$

And we can use the complement rule and we got:

$P(z>0.25)=1-P(z$

$P(z>-1)=1-P(z$

And replacing we got:

$P(X >20| X>15)= \frac{0.401}{0.841}= 0.477$

Part b

$P(X >20| X>18)= \frac{P(X >20 \cap X>18)}{P(X>18)}=\frac{P(X>20)}{P(X>18)}$

We can solve the problem using the z score formula given by:

$z = \frac{x-\mu}{\sigma}$

$z_1 =\frac{20-19}{4} =0.25$

$z_2 =\frac{18-19}{4} =-0.25$

And we can use the complement rule and we got:

$P(z>0.25)=1-P(z$

$P(z>-0.25)=1-P(z$

And replacing we got:

$P(X >20| X>18)= \frac{0.401}{0.599}= 0.669$

5 0

4 years ago

At a mall food court, the first 18 orders for the day are given below.

aliina [53]

let's focus solely on fried chicken.

So,

18 orders (18 customers) = 4 fried chickens

1 order = ( 4 ÷ 18 )

225 orders (225 customers) = ( 4 ÷ 18 ) × 225

= 50 fried chickens

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3 years ago

Which of these canadian provinces is locate furthest east <br><br> answer is Quebec

qwelly [4]

Newfoundland and Labrador, and Quebec are the provinces located further east.

<h3>Provinces in Canada:</h3>

Canada is a country located in North America. This country is divided into 10 provinces each with cities and towns. Some of these provinces are:

Nova Scotia
Prince
Newfoundland and labrador
Quebec
Alberta

<h3>Which provinces are located further east?</h3>

In the eastern region of Canada, the provinces are:

Newfoundland and labrador
Quebec
Ontario

From these, Newfoundland and Quebec are the ones located further east as shown on the map.

Learn more about Canada in: brainly.com/question/784505

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3 years ago