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Kay [80]
3 years ago
7

I need help plzz I need the answer

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
3 0

Answer:

its d!

Step-by-step explanation:

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How do you write an equation in slope intercept form with the points (5,19) (-9,5)
Vika [28.1K]

Answer:

y=x+6

Step-by step

m = y2 - y1

     -----------

       x2 - x1

5 - 19 = -14

----------------

-9 - 5     -14

               =1

 b = y + x

= 5 + 1

= 6

5 0
3 years ago
The cost to produce a batch of granola bars is approximately Normally distributed with a mean of $7.19 and a standard deviation
Bumek [7]

Answer:

0.7780

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Population:

We have that \mu = 7.19, \sigma = 0.86

Sample of 12:

n = 12, s = \frac{0.86}{\sqrt{12}} = 0.2483

What is the probability that the mean cost will be more than $7.00?

This is 1 subtracted by the pvalue of Z when X = 7. So

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{7 - 7.19}{0.2483}

Z = -0.765

Z = -0.765 has a pvalue of 0.222

1 - 0.222 = 0.778

So the answer is 0.7780

6 0
3 years ago
Use the given conditions to write an equation for each line in point-slope form and slope-intercept form.
anyanavicka [17]

Answer:

(y - 0) =  \frac{1}{3} (x - 0)

y =  \frac{1}{3} x

7 0
3 years ago
Hello? i have a question.​
Vedmedyk [2.9K]

Answer:

whats your question

Step-by-step explanation:

4 0
3 years ago
Math help please? There are 12 more toy cars than toy trucks in a box with a total of 38 toy cars and toy trucks. How many toy t
dlinn [17]
Let, the number of toy trucks = x
Then, number of toy cars = (x + 12)

Now, we have: x + x+12 = 38
2x + 12 = 38
2x = 38 - 12
2x = 26
x = 26/2
x = 13

So, there are 13 toy trucks in total.

Hope this helps!
7 0
3 years ago
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