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Sunny_sXe [5.5K]
3 years ago
13

Tell whether the change is an increase or a decrease. Then find the percent of change. Round to the nearest percent.

Mathematics
2 answers:
Zina [86]3 years ago
7 0

Answer:

my psy is wet

Step-by-step explanation:

Gnoma [55]3 years ago
4 0

Answer:

The answer is 150%

Step-by-step explanation:

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A soft drink machine outputs a mean of 2323 ounces per cup. The machine's output is normally distributed with a standard deviati
viktelen [127]

Answer:

Area under the normal curve: 0.6915.

69.15% probability of putting less than 24 ounces in a cup.

Step-by-step explanation:

Problems of normally distributed samples are solved using 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.

In this problem, we have that:

\mu = 23, \sigma = 2

You have been asked to calculate the probability of putting less than 24 ounces in a cup.

pvalue of Z when X = 24. So

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

Z = \frac{24 - 23}{2}

Z = 0.5

Z = 0.5 has a pvalue of 0.6915

Area under the normal curve: 0.6915.

69.15% probability of putting less than 24 ounces in a cup.

5 0
3 years ago
Can you please help me with this? <br> 14 + 5(x + 3) - 7x
TEA [102]
Well first you have to do distributive property with the parenthesis, multiply 5 times x and 5 times 3 to get 5x and 15 now you have 14+5x+15-7x, now add common like terms(these are terms taht have the same number variable or both) so your common numbers will be 14 and 15, and 5x and -7x now add or subtract them to get -2x+29 now you have to set x by itself so set this binomial equal to 0 to get -2x+29=0 subtract the 29 from both sides and get -2x=-29 now divide 2 by both sides to get x=29/2

Hope this helps
4 0
3 years ago
Read 2 more answers
Is -2.2675 a irrational number?
bezimeni [28]
No because it has an ending it doesnt continue 

5 0
3 years ago
What is the function?
aleksley [76]

Answer:

c

Step-by-step explanation:

4 0
3 years ago
Write the following set in roster form and in set-builder notation.
Vlad1618 [11]

Answer:

Roster Form of M  = {-2, -1 , 0, 1}

Set Builder Form of M = {x : x is an integer and -3  < x  ≤ 1 }

Step-by-step explanation:

Roster Form: A set is said to be in roster form if each element of the set is written distinctly in the set with commas in between them.

Set Builder Form: A set is said to be in set builder form if all the set elements are represented by describing their properties.

Now, here M is the set of integers that are greater than -3 and less than or equal to 1.

So, by definition of the set forms,

Roster Form of M  = {-2, -1 , 0, 1}

Set Builder Form of M = {x : x is an integer and -3  < x  ≤ 1 }

4 0
4 years ago
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