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Whitepunk [10]
3 years ago
15

Have sum points ;) ;) ;) ;) ;) ;) ;)

Mathematics
2 answers:
julsineya [31]3 years ago
6 0

Answer:

ay thanks 4 the fr3e points

Step-by-step explanation:

Have a good day bro cya)

OleMash [197]3 years ago
5 0
Ahh thank you so much !! <3
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Your company manufactures hot water heaters. The life spans of your product are known to be normally distributed with a mean of
Oksana_A [137]

Answer:

You should claim 10.5325 years on your warranty.

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 = 13, \sigma = 1.5

Want's to replace no more than 5% of the products.

This means that the warranty should be 5th percentile, that is, the value of X when Z has a pvalue of 0.05. So X when Z = -1.645.

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

-1.645 = \frac{X - 13}{1.5}

X - 13 = -1.645*1.5

X = 10.5325

You should claim 10.5325 years on your warranty.

6 0
3 years ago
Plz tell the answers in the correct order​
Nimfa-mama [501]

Answer:

a) 120°

Step-by-step explanation:

i think this is the right answer

7 0
3 years ago
The sum of two numbers is five. If n is used to represent the smaller number, translate "three less than two times the larger nu
mojhsa [17]
I think that the answer is four because it makes much more sense but five is not greater than five or less than five so I don’t know. Try four though sorry if it’s wrong though.
7 0
3 years ago
Help Please.<br><br> If 7m - 3 = 53. What is the value of 11m + 2?
Pachacha [2.7K]

Answer:

90.

Step-by-step explanation:

7m - 3 = 53

m would be 8 because 56 - 3 = 53.

11m + 2 equals 90 because 11 times 8 (8 is m) is 88, which added by two is 90.

4 0
3 years ago
Raul's pet store has a play area that can fit up to 30 cats and dogs. His son is allergic to cats so the pet store never has mor
a_sh-v [17]

Answer:

Step-by-step explanation:

Let :

C = number of cats

D = number of dogs

Raul's pet store has a play area that can fit up to 30 cats and dogs.

C + D = 30

The pet store never has more than 8 cats in the play areas.

<h2>C < 9</h2>

(there can never be 9 or more cats)

As or the number of dogs :

C + D = 30

C = 30 - D

Since we know that C < 9. To get the number of dogs allowed, we just plug in 30 - D for C.

30 - D < 9

30 - 9 < D

or

<h2>D > 21</h2>

(dogs have to be 22 or more)

5 0
1 year ago
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