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kompoz [17]
3 years ago
15

263/4 plz answer thank you

Mathematics
2 answers:
mr_godi [17]3 years ago
6 0

Answer:

65.75

Step-by-step explanation:

All you do is divide.

zheka24 [161]3 years ago
3 0

Answer:

65.75

Step-by-step explanation:

Please give me Brainlest!

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What times what =13?
patriot [66]

Answer:

1x13 :-)

1 x 13 = 13

8 0
3 years ago
Read 2 more answers
It takes peter 3/5 of an hour to paint one room. How long will it take for him to paint three rooms?
rosijanka [135]

Answer:

1 4/5 hours

Step-by-step explanation:

3/5 x 3 = 9/5 or 1 4/5

6 0
2 years ago
A puppy’s circular water bowl has a radius of 14 cm. Identify the two true statements.
avanturin [10]

Answer:

the diameter is 28 centimeters and the area is 97.4 centimeters

Step-by-step explanation:

the diameter is just the radius plus the radius so its 28

and i just solved for the area and got 97.4

6 0
3 years ago
Researchers at a pharmaceutical company have found that the effective time duration of a safe dosage of pain relief drug is norm
FrozenT [24]

Answer:

a) P(1

b) P(X

Step-by-step explanation:

1) 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".  

2) Part a

Let X the random variable that represent the duration of a safe dosage of pain relief drug, and for this case we know the distribution for X is given by:

X \sim N(1.5,0.8)  

Where \mu=1.5 and \sigma=0.8

We are interested on this probability

P(1

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(1

And we can find this probability on this way:

P(-0.625

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

P(-0.625

3) 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 on this way:

P(z

6 0
3 years ago
HELP ME PLEASE.......
lesantik [10]
First and the fourth
8 0
3 years ago
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