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Ira Lisetskai [31]
3 years ago
15

HELP HELP HELO HELP!!!!!!!!

Mathematics
1 answer:
uysha [10]3 years ago
5 0

U NEED HELP OK DONT ORRY PLOICE ITS ON ITS WAT !!

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Item 5<br> Evaluate the expression.<br><br> |12(16−63)|
USPshnik [31]
564 is the answer here you go
6 0
4 years ago
Urgent help please :)
avanturin [10]

Answer:

7w

Step-by-step explanation:

2w^2-4w+9

w^2-w+2-4+9

w+7

7w

8 0
4 years ago
A 15​-foot wall measures 5.25 inches on a scale drawing. In the​ drawing, a second wall is 9 inches long. Estimate the actual le
laila [671]

Answer:

6 ft

Step-by-step explanation:

8 0
4 years ago
The time taken to complete a motorcycle race is normally distributed, with an average time (µ) of 2.5 hours and a standard devia
torisob [31]

Using the normal distribution, there is a 0.5398 = 53.98% probability that a randomly selected cyclist will take at least 2.45 hours to complete the race.

<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.

The mean and the standard deviation are given, respectively, by:

\mu = 2.5, \sigma = 0.5

The probability that a randomly selected cyclist will take at least 2.45 hours to complete the race is <u>one subtracted by the p-value of Z when X = 2.45</u>, hence:

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

Z = \frac{2.45 - 2.5}{0.5}

Z = -0.1

Z = -0.1 has a p-value of 0.4602.

1 - 0.4602 = 0.5398.

0.5398 = 53.98% probability that a randomly selected cyclist will take at least 2.45 hours to complete the race.

More can be learned about the normal distribution at brainly.com/question/4079902

#SPJ1

3 0
2 years ago
Can I get some help with part b?
Nastasia [14]

Answer:

1 sig figs = 1st number is a non zero number and all following numbers are zero (if no decimal point present)

if decimal point is present then it can be 0.x where the x can be any number but nothing can come after it

Step-by-step explanation:

7 0
3 years ago
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