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Gemiola [76]
3 years ago
12

18+17+16+15+14+13+12+11+10 what is the answer​

Mathematics
1 answer:
telo118 [61]3 years ago
4 0
Answer to the math question is:
126
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What does x equal if 6-4x=7x-9x-4
Licemer1 [7]

x= 5

Slove for x by simplifying both sides of the equation, then isolating the variable

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3 years ago
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Below is the step-by-step solution to the prob-
MakcuM [25]

Answer:

Step-by-step explanation:

-4 + 4x = -pq

Add 4 to both sides

4x = -pq + 4

Divide both sides by 4

x = \frac{-pq + 4}{4}

3 0
3 years ago
What is the domain of y = cos θ?
Tpy6a [65]

Domain are all the possible x values of a function. When you look at a cosine graph you can see that it goes on into infinity in the x or horizontal direction. This means that all x values are included in cosine. Because of this the domain is:

all real numbers

or

(-∞,∞)

^^^ It can be written both ways

Hope this helped! Let me know if there is anything else I can do!

7 0
3 years ago
A package of 6 pairs of insulated costs ​$38.94. What is the unit price of the pairs of ​?
barxatty [35]

The <em><u>CORRECT</u></em> answer is:

$6.49 per pair

Step-by-step explanation:

38.94 divided by 6 = 6.49

6.49 <== <u><em>Add</em></u> the "$" symbol <=== $6.49

3 0
3 years ago
A consensus forecast is the average of a large number of individual analysts' forecasts. Suppose the individual forecasts for a
zaharov [31]

Answer:

a) P(X>3.5)=P(\frac{X-\mu}{\sigma}>\frac{3.5-\mu}{\sigma})=P(Z>\frac{3.5-5}{1.2})=P(z>-1.25)

And we can find this probability using the complement rule:

P(z>-1.25)=1-P(z

b) P(X

And we can find this probability uing the normal standard table:

P(z

c) P(3.5

And we can find this probability with this difference:

P(-1.25

And in order to find these probabilities we can use tables for the normal standard distribution, excel or a calculator.  

P(-1.25

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".  

Part a

Let X the random variable that represent the variable of interest of a population, and for this case we know the distribution for X is given by:

X \sim N(5,1.2)  

Where \mu=5 and \sigma=1.2

We are interested on this probability

P(X>3.5)

And the best way to solve this problem is using the normal standard distribution and the z score given by:

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

If we apply this formula to our probability we got this:

P(X>3.5)=P(\frac{X-\mu}{\sigma}>\frac{3.5-\mu}{\sigma})=P(Z>\frac{3.5-5}{1.2})=P(z>-1.25)

And we can find this probability using the complement rule:

P(z>-1.25)=1-P(z

Part b

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

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

If we apply this formula to our probability we got this:

P(X

And we can find this probability uing the normal standard table:

P(z

Part c

P(3.5

And we can find this probability with this difference:

P(-1.25

And in order to find these probabilities we can use tables for the normal standard distribution, excel or a calculator.  

P(-1.25

3 0
3 years ago
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