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3 years ago

DRAW AN AREA MODEL WITH THIS EQUATION PEOPLE LITERALLY JUST SOLVE THE MULTIPICATION

Mathematics

2 answers:

Iteru [2.4K]3 years ago

7 0

Answer:

You need four squares.

On the top left square, you put the number 20 over it, and the number 30 to its left. Put the number 600 in the square.

Next, the bottom left square. But the number 4 on the left side of the square, and put the number 80 in the square.

Now, the top right box. put the number 8 over it, and fill it with the number 240.

Last, fill the bottom right square with the number 32.

Andrew [12]3 years ago

6 0

Answer:

Draw a rectangle with one side equal to 28 and the longer side equal to 34

Step-by-step explanation:

Draw a rectangle

On the small line, make it equal to 28

On the longer lines make it equal to 34

You might be interested in

Suppose that administrators at a large urban high school want to gain a better understanding of the prevalence of bullying withi

boyakko [2]

Answer:

lower limit =0.261

upper limit =0.369

Step-by-step explanation:

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

Description in words of the parameter p

$p$ represent the real population proportion of people that have experienced bullying

X= 63 people in the random sample that have experienced bullying

n=200 is the sample size required

$\hat p=\frac{63}{200}=0.315$ represent the estimated proportion of people that have experienced bullying

$z_{\alpha/2}$ represent the critical value for the margin of error

The population proportion have the following distribution

$p \sim N(p,\sqrt{\frac{p(1-p)}{n}})$

Numerical estimate for p

In order to estimate a proportion we use this formula:

$\hat p =\frac{X}{n}$ where X represent the number of people with a characteristic and n the total sample size selected.

$\hat p=\frac{63}{200}=0.315$ represent the estimated proportion of people that they were planning to pursue a graduate degree

Confidence interval

The confidence interval for a proportion is given by this formula

$\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}$

For the 90% confidence interval the value of $\alpha=1-0.90=0.1$ and $\alpha/2=0.05$ , with that value we can find the quantile required for the interval in the normal standard distribution.

$z_{\alpha/2}=1.64$

And replacing into the confidence interval formula we got:

$0.315 - 1.64 \sqrt{\frac{0.315(1-0.315)}{200}}=0.261$

$0.315 - 1.64 \sqrt{\frac{0.315(1-0.315)}{200}}=0.369$

And the 90% confidence interval would be given (0.261;0.369).

We are confident at 90% that the true proportion of people that they were planning to pursue a graduate degree is between (0.261;0.369).

lower limit =0.261

upper limit =0.369

5 0

3 years ago

1) Find the measure of ∠θ. Round to one decimal place.

I am Lyosha [343]

Answer/Step-by-step explanation:

Reference angle = θ

Opposite side = 11.9

Adjacent side = 10

Applying the trigonometric ratio, TOA, we have:

Tan θ = opp/adj

Tan θ = 11.9/10

θ = tan^{-1}(11.9/10)

θ = 49.9584509° ≈ 50.0° (to one d.p)

Apply pythagorean theorem to find AB:

Thus:

AB = √(11.9² + 10²)

AB = √241.61

AB ≈ 15.5 (to 1 d.p)

3 0

3 years ago

An archeologist used the functions below to model the changing populations of two ancient cities as they grew in size. Compare t

Lyrx [107]

Answer:

The answer is "6.3 and 5.25"

Step-by-step explanation:

Please find the complete question in the attached file.

Throghout the question the calculated points are:

$(0,0) , \ \ (40,252) \\(0,0) , \ \ (40,210) \\$

Formula for Calculating slope:

$M=\frac{y_2-y_1}{x_2-x_1}$

For First point slope:

$M=\frac{252-0}{40-0}=\frac{252}{40}= 6.3 \ \frac{people}{mi^2}$

For second point slope: $M=\frac{210-0}{40-0}=\frac{210}{40}=\frac{21}{4}= 5.25 \ \frac{people}{mi^2}$

8 0

2 years ago

(-34) to the power of -7

mr_godi [17]

Answer:

-1/52523350144

decimal form:

-1.90391511*10^11

Step-by-step explanation:

6 0

3 years ago

Sara has rs. 836 with her. she gives 9/11 of this to her sister. out of the remaining money, she gives rs. 38 to her brother. sh

Minchanka [31]

The original amount Sara has left is 172/209

The calculation can be done as follows

Let y represent the amount left

9/11 × 836

= 7524/11

= 110

Y can be calculated as follows

Y + 38 +110= 836

148 + Y= 836

Y= 836 - 148

Y= 688

Therefore the fraction is

688/836

= 172/209

Hence the fraction of the original amount left is 172/209

Please see the link below for more information
brainly.com/question/16850300?referrer=searchResults

#SPJ1

5 0

1 year ago

DRAW AN AREA MODEL WITH THIS EQUATION PEOPLE LITERALLY JUST SOLVE THE MULTIPICATION ​

DRAW AN AREA MODEL WITH THIS EQUATION PEOPLE LITERALLY JUST SOLVE THE MULTIPICATION