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3 years ago

Please help, will mark brainliest

Mathematics

1 answer:

kogti [31]3 years ago

6 0

Answer:

Step-by-step explanation:

⇒the slope is constant so the relationship will be linear

⇒the slope equal = (35-21)/(5-3)=7

<u>(y-21)=7(x-3)</u>

I hope this help

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The diagram shows. LOOK AT THE PIC.<br>pls help me.

Reptile [31]

Answer:

The perimeter of the shaded region is 267.8 m ( approximately)

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

8.52 The heights of 2-year-old children are normally distributed with a mean of 32 inches and a standard deviation of 1.5 inches

sweet [91]

Answer:

Heights of 29.5 and below could be a problem.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

The heights of 2-year-old children are normally distributed with a mean of 32 inches and a standard deviation of 1.5 inches.

This means that $\mu = 32, \sigma = 1.5$

There may be a problem when a child is in the top or bottom 5% of heights. Determine the heights of 2-year-old children that could be a problem.

Heights at the 5th percentile and below. The 5th percentile is X when Z has a p-value of 0.05, so X when Z = -1.645. Thus

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

$-1.645 = \frac{X - 32}{1.5}$

$X - 32 = -1.645*1.5$

$X = 29.5$

Heights of 29.5 and below could be a problem.

4 0

3 years ago

Austin earns $9.75 an hour at a part-time job, and earns $12 each time mowing lawns in the neighborhood. They graph the amount o

kaheart [24]

Answer:

$7.25 at part-time job

$9.00 every time lawn mowed

so he would get 33.33 day so we will just say 33 times to get 300 dollars if he gets $9 for mowing. And 41.37 hours to get $300 and he would have to use x and y graph to find the boundary line.

Step-by-step explanation:

4 0

3 years ago

Brian rides his bicycle 24 miles in 2 hours. Write a ratio of Brain's miles per hour. Use the ratio from #1 to determine how far

Sati [7]

Answer:Ratio in miles per hour is 12 miles per hour.

Distance travelled is 60miles

Step-by-step explanation:

Speed=distance/time taken

24/2=12miles per hour

Therefore, distance travelled in 5 hours is 12*5=60miles

6 0

4 years ago

The record for the most rolls of wrapping paper sold for the school fundraiser is 593. Let w be the number of rolls of wrapping

astra-53 [7]

Answer:

w ≤ 593

Step-by-step explanation:

Missing option;

w ≥ 593

w > 593

w ≤ 593

593 < w

Explanation:

w ≥ 593 No

Number of wrapping paper sold never be more than 593.

w > 593 no

Number of wrapping paper sold never be more than 593.

w ≤ 593 yes

Number of wrapping paper sold will be equal or less than 593.

5 0

3 years ago