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3 years ago

Help help help help help help

Mathematics

2 answers:

jeka57 [31]3 years ago

5 0

Answer:

the simplified answer is y= 63/8

TiliK225 [7]3 years ago

4 0

Answer:

y=63/8

Step-by-step explanation:

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Write a scenario that could work for the following line of best fit y= x + 1 explain the slope and Intercept in this context

puteri [66]

A kid has $1 and he receives $1 everyday after doing his homework. So the initial money that he has is the y-intercept and the money that he receives everyday is the slope.

Hope this helps :)

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4 years ago

What is the square root of 9?

Elza [17]

The square root of nine is three.

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3 years ago

Read 2 more answers

A particular battery claims to have a mean life of 400 hours with a standard deviation of 30 hours. Approximately what percent o

Svetach [21]

Using the normal distribution, it is found that 25.14% of the batteries will last more than 420 hours.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean $\mu$ and standard deviation $\sigma$ is given by:

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

The z-score measures how many standard deviations the measure is above or below the mean.

Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

In this problem, we have that the mean and the standard deviation are given, respectively, by:

$\mu = 400, \sigma = 30$ .

The proportion of the batteries will last more than 420 hours is <u>one subtracted by the p-value of Z when X = 420</u>, hence:

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

$Z = \frac{420 - 400}{30}$

Z = 0.67

Z = 0.67 has a p-value of 0.7486.

1 - 0.7486 = 0.2514.

0.2514 = 25.14% of the batteries will last more than 420 hours.

More can be learned about the normal distribution at brainly.com/question/24663213

#SPJ1

3 0

2 years ago

Sonia is standing 20 centimeters from the door.brice is standing 20 meters from the door.who is standing further from the door

Sever21 [200]

Hello!

Brice is standing further away from the door, because 20 metres are greater than 20 centimetres.

A lot greater, actually, because 20 metres = 2,000 centimetres.

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3 years ago

A 12 ounce bottle of cleaner cost $3.74 a 16 ounce bottle of cleaner cost $5.34 which bottle would be the best spot which cost l

Valentin [98]

Answer:

12 ounce bottle

Step-by-step explanation:

12 x 3 = 36

16 x 5 = 80

So, that means the 12 ounce bottle is cheaper. :)

5 0

4 years ago