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erma4kov [3.2K]
3 years ago
5

Hi please help thank you i’ll give brainliest

Mathematics
1 answer:
Sergio [31]3 years ago
4 0

Answer:

ok so first start with 97 and 45 put together 57/97 and

Step-by-step explanation:

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Please please answer this correctly I have to finish this today as soon as possible
Simora [160]

Answer:

Step-by-step explanation:

Look at where -2 is on the x-axis (the left side of the horizontal line), and go another half a box in, that is -2.5. But then go down one box from there, and plot the point. that is (-2.5,-1).

Next go half a box to the right and two boxes up, and plot your point there. that is (.5,2).

8 0
3 years ago
Pls answer quickly if possible!​
Allisa [31]

Answer:

answer is B. 3 and 2

Step-by-step explanation:

source i have the answer sheet for this unit lol so can i get brainliest !!!

4 0
2 years ago
Read 2 more answers
PLS HELP ME ASAP FOR 14? (SHOW WORK!!!!) + LOTS OF POINTS!!!
vladimir1956 [14]
30% off $ 45 

<span>30% of $ 45 = (.3) (45) = $ 13.50 </span>

<span>30% off $ 45 = $ 45.00 - $ 13.50 = $ 31.50
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</span>
6 0
2 years ago
The exam scores for 200 students are normally distributed with a mean of 72 and a standard deviation of 10. Which answer choice
Paha777 [63]

Using the normal distribution, it is found that there are 68 students with scores between 72 and 82.

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

\mu = 72, \sigma = 10

The proportion of students with scores between 72 and 82 is the <u>p-value of Z when X = 82 subtracted by the p-value of Z when X = 72</u>.

X = 82:

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

Z = \frac{82 - 72}{10}

Z = 1

Z = 1 has a p-value of 0.84.

X = 72:

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

Z = \frac{72 - 72}{10}

Z = 0

Z = 0 has a p-value of 0.5.

0.84 - 0.5 = 0.34.

Out of 200 students, the number is given by:

0.34 x 200 = 68 students with scores between 72 and 82.

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

#SPJ1

6 0
2 years ago
High school play at least once were. This is 70% of the students at the school how many students are at the school
bogdanovich [222]
U just divide 70 and 45 and u get your answer
7 0
2 years ago
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