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RUDIKE [14]
2 years ago
14

Marking brainlest if done in 5 mins

Mathematics
2 answers:
MA_775_DIABLO [31]2 years ago
8 0

Answer:

392in² would be my guess

Step-by-step explanation:

The area of the parallelogram is equal to,

A=bh

where b is base and h is the length of the height.

 Area of parallelogram = 14 inches× 10 inches = 140 in²

There are two parallelograms, the total area of two parallelograms is 280 in².

The area of the triangle is calculated Below

Area=BH/2

Area = (28 inches)-18 inches - 10 inches- / 2 = 112 in^{2}

Adding the areas we get --> 392in^{2}

Therefore the Answer will be 392in^{2}

Good Luck with your Assignment!

Have a great day!                                

Luden [163]2 years ago
7 0

Answer: The answer is 392 squared

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With a height of 68 ​in, Nelson was the shortest president of a particular club in the past century. The club presidents of the
Ivahew [28]

Answer:

a. The positive difference between Nelson's height and the population mean is: \\ \lvert 68-70.7 \rvert = \lvert 70.7-68 \rvert\;in = 2.7\;in.

b. The difference found in part (a) is 1.174 standard deviations from the mean (without taking into account if the height is above or below the mean).

c. Nelson's z-score: \\ z = -1.1739 \approx -1.174 (Nelson's height is <em>below</em> the population's mean 1.174 standard deviations units).

d. Nelson's height is <em>usual</em> since \\ -2 < -1.174 < 2.

Step-by-step explanation:

The key concept to answer this question is the z-score. A <em>z-score</em> "tells us" the distance from the population's mean of a raw score in <em>standard deviation</em> units. A <em>positive value</em> for a z-score indicates that the raw score is <em>above</em> the population mean, whereas a <em>negative value</em> tells us that the raw score is <em>below</em> the population mean. The formula to obtain this <em>z-score</em> is as follows:

\\ z = \frac{x - \mu}{\sigma} [1]

Where

\\ z is the <em>z-score</em>.

\\ \mu is the <em>population mean</em>.

\\ \sigma is the <em>population standard deviation</em>.

From the question, we have that:

  • Nelson's height is 68 in. In this case, the raw score is 68 in \\ x = 68 in.
  • \\ \mu = 70.7in.
  • \\ \sigma = 2.3in.

With all this information, we are ready to answer the next questions:

a. What is the positive difference between Nelson​'s height and the​ mean?

The positive difference between Nelson's height and the population mean is (taking the absolute value for this difference):

\\ \lvert 68-70.7 \rvert = \lvert 70.7-68 \rvert\;in = 2.7\;in.

That is, <em>the positive difference is 2.7 in</em>.

b. How many standard deviations is that​ [the difference found in part​ (a)]?

To find how many <em>standard deviations</em> is that, we need to divide that difference by the <em>population standard deviation</em>. That is:

\\ \frac{2.7\;in}{2.3\;in} \approx 1.1739 \approx 1.174

In words, the difference found in part (a) is 1.174 <em>standard deviations</em> from the mean. Notice that we are not taking into account here if the raw score, <em>x,</em> is <em>below</em> or <em>above</em> the mean.

c. Convert Nelson​'s height to a z score.

Using formula [1], we have

\\ z = \frac{x - \mu}{\sigma}

\\ z = \frac{68\;in - 70.7\;in}{2.3\;in}

\\ z = \frac{-2.7\;in}{2.3\;in}

\\ z = -1.1739 \approx -1.174

This z-score "tells us" that Nelson's height is <em>1.174 standard deviations</em> <em>below</em> the population mean (notice the negative symbol in the above result), i.e., Nelson's height is <em>below</em> the mean for heights in the club presidents of the past century 1.174 standard deviations units.

d. If we consider​ "usual" heights to be those that convert to z scores between minus2 and​ 2, is Nelson​'s height usual or​ unusual?

Carefully looking at Nelson's height, we notice that it is between those z-scores, because:

\\ -2 < z_{Nelson} < 2

\\ -2 < -1.174 < 2

Then, Nelson's height is <em>usual</em> according to that statement.  

7 0
3 years ago
Use Distributive Property to write an equivalent expressions 7(x+6)
malfutka [58]

Answer:

7x+42

Step-by-step explanation:

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3 years ago
Please help me ASAP! thank you ^-^ As part of a new advertising campaign, a beverage company wants to increase the dimensions of
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Answer:

B 137.32 cm³

Step-by-step explanation:

The original volume is

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V =108 pi cm^2 = 339.12

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r = 6.72 /2 =3.36

The height will increase by 1.12 so 12*1.12

V = pi ( 3.36)^2 ( 13.44)=476.4391834

The difference is

476.4391834 - 339.12 = 137.3191834

To the nearest hundredth

137.32

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Answer:

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Answer: What does the term 8t represent?

*) the price of the tickets

Step-by-step explanation:

4 0
3 years ago
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