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3 years ago

Help ASAP please!!!!!!!!!

Mathematics

2 answers:

Mademuasel [1]3 years ago

5 0

Answer: answer true

Step-by-step explanation:

See the format you can check the x axis and y axis then add that to the piecewise. Happy to help!

bagirrra123 [75]3 years ago

4 0

Answer:

pls just give me these points my account got hacked and I have -47 points when I had 570

Step-by-step explanation:

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Over the past year, your friend Maura has been saving up for an epic road trip to travel across the country this summer. Her goa

Misha Larkins [42]

"Give an example of a sound financial decision Maura might make to support this goal. Why is it sound?"

She could choose to carefully budget her trip and avoid overspending at all costs. This prevents going into debt. She should also save up extra money in the event of an emergency.

Then give an example of a poor financial decision Maura might make considering her goal. Why is it a poor decision?

Not having a plan would be a poor decision on her part. She could end up spending too much and not realize how much money she has left.

I hope I helped!

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3 years ago

The difference between an observational study and an experiment is that

spin [16.1K]

explanation:

In an observational study, we measure or survey members of a sample without trying to affect them. In a controlled experiment, we assign people or things to groups and apply some treatment to one of the groups, while the other group does not receive the treatment

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3 years ago

Ken ordered 4/5 of a ton of sand. He wants to recieve 1/3 now and 2/3 later. What fraction of a ton of sand should he recieve no

gizmo_the_mogwai [7]

4/15 of the sand. Multiply 4/5 by 1/3.

3 0

3 years ago

he blood platelet counts of a group of women have a bell-shaped distribution with a mean of 247.3 and a standard deviation of 6

Ulleksa [173]

Answer:

The approximate percentage of women with platelet counts within 3 standard deviations of the mean is 99.7%.

Step-by-step explanation:

We are given that the blood platelet counts of a group of women have a bell-shaped distribution with a mean of 247.3 and a standard deviation of 60.7.

Let X = the blood platelet counts of a group of women

The z-score probability distribution for the normal distribution is given by;

Z = $\frac{X-\mu}{\sigma}$ ~ N(0,1)

where, $\mu$ = population mean = 247.3

$\sigma$ = standard deviation = 60.7

Now, according to the empirical rule;

68% of the data values lie within one standard deviation of the mean.

95% of the data values lie within two standard deviations of the mean.

99.7% of the data values lie within three standard deviations of the mean.

Since it is stated that we have to calculate the approximate percentage of women with platelet counts within 3 standard deviations of the mean, or between 65.2 and 429.4, i.e;

z-score for 65.2 = $\frac{X-\mu}{\sigma}$

= $\frac{65.2-247.3}{60.7}$ = -3

z-score for 429.4 = $\frac{X-\mu}{\sigma}$

= $\frac{429.4-247.3}{60.7}$ = 3

So, it means that the approximate percentage of women with platelet counts within 3 standard deviations of the mean is 99.7%.

4 0

3 years ago

What is the apothem of the regular octagon below?

nadezda [96]

Uhh 450 if my calculator is doing it right

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3 years ago