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masha68 [24]
3 years ago
10

How do you sketch and label a trapezoid that has an area of 100 cm2

Mathematics
2 answers:
kirill115 [55]3 years ago
8 0

Answer:

if you want to sketch the trapezoid you will also need other dimensions like height and the length of the parallel sides

Nastasia [14]3 years ago
6 0
You need more lengths of the sides to be able to sketch it perfect. hope this helps have a blessed day
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It’s simple I swear!!! what is the square root of 25 times the square root of 9
goldenfox [79]

Answer:

15

Step-by-step explanation:

1st multiply the numbers: 25 × 9 = 225

2nd factor the number: 225 = √15^2

3rd apply radical rule: √15^2 = 15

Hope I helped :)

6 0
3 years ago
Read 2 more answers
Write the number for one million six hundred thousand .
shtirl [24]

Answer:

1,600,000

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Need your help asap trying to get 100%
marta [7]

Answer:

if he sells 12 every 8 months, supposing the trend continues, in 34 months he’ll sell...

12(properties) = 8 months

12/8 = 1 month

1 month = 1.5(properties)

2 months = 3 properties

(since 1.5 properties is unrealistic, but it helps in the math, to find for one month)

so for 34 months he’ll sell...

1.5*34 = 51 properties

4 0
3 years ago
A sample of eight workers in a clothing manufacturing company gave the following figures for the amount of time(in minutes) need
lilavasa [31]

Answer:

10.108 < \mu < 13.892    

Step-by-step explanation:

1) Previous concepts

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".

\bar X represent the sample mean for the sample  

\mu population mean (variable of interest)

s represent the sample standard deviation

n represent the sample size  

We have the following distribution for the random variable:

X \sim N(\mu , \sigma=0.45)

And by the central theorem we know that the distribution for the sample mean is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

2) Confidence interval

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

In order to calculate the mean and the sample deviation we can use the following formulas:  

\bar X= \sum_{i=1}^n \frac{x_i}{n} (2)  

s=\sqrt{\frac{\sum_{i=1}^n (x_i-\bar X)}{n-1}} (3)  

The mean calculated for this case is \bar X=12

The sample deviation calculated s=2.268

In order to calculate the critical value t_{\alpha/2} we need to find first the degrees of freedom, given by:

df=n-1=8-1=7

Since the Confidence is 0.95 or 95%, the value of \alpha=0.05 and \alpha/2 =0.025, and we can use excel, a calculator or a tabel to find the critical value. The excel command would be: "=-T.INV(0.025,7)".And we see that t_{\alpha/2}=2.36

Now we have everything in order to replace into formula (1):

12-2.36\frac{2.268}{\sqrt{8}}=10.108    

12+2.36\frac{2.268}{\sqrt{8}}=13.892

So on this case the 95% confidence interval would be given by (10.108;13.892)

10.108 < \mu < 13.892    

7 0
3 years ago
Find the length of each model. Then find the scale factor. (Pictures attached #3/#4)
max2010maxim [7]

12 cm for the first one and 11.6 for the second.


Unrelated to the question, that house around number 3 gives me nostalgia of elementary school :)

6 0
3 years ago
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