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3 years ago

Can someone explain to me how to do division? And also long division since I’m bad at explaining

1 answer:

7 0

Divison is easy! all you have to do is know multiplication, like for example 8 divided by 4 = 2 .. because you can see 4x2 equals 8 so do it from the end to the beginning ( if that makes sense, i’m like really bad at explaining thing sorry )

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How to do Hypotenuse ?

Anon25 [30]

Answer:

pythagurom theorum

Step-by-step explanation:

$a^2 *b^2=c^2$

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3 years ago

Find slope of line with the points (-5,-4) and has a slope of -3/5

marishachu [46]

Answer:

-3/5

Step-by-step explanation:

The answer is already in your question. You're asking for the slope of a line with an already stated slope

6 0

3 years ago

Read 2 more answers

Which of the following are true about the function graphed above?

mafiozo [28]

The y intercept is (0,-5)
The maximum is at (3,4)
There are two real solutions (roots)

4 0

3 years ago

Each morning, Joey leaves his house at 7:25 A.M. It takes Joey 10 minutes to walk to the bus stop. Joey rides the bus for 50 min

Akimi4 [234]

Answer:

8:30 AM

Step-by-step explanation:

10 minutes from 7:25 is 7:35, add 50 minutes and then that's 8:25. Add another five minutes, and then the time is 8:30

5 0

3 years ago

Farmers know that driving heavy equipment on wet soil compresses the soil and injures future crops. Here are data on the "penetr

Sonja [21]

Answer:

Step-by-step explanation:

Given that;

Compressed Soil 2.85 2.66 3 2.82 2.76 2.81 2.78 3.08 2.94 2.86 3.08 2.82 2.78 2.98 3.00 2.78 2.96 2.90 3.18 3.16

Intermediate Soil 3.17 3.37 3.1 3.40 3.38 3.14 3.18 3.26 2.96 3.02 3.54 3.36 3.18 3.12 3.86 2.92 3.46 3.44 3.62 4.26

Compressed soil intermediate soil

Mean 2.907 3.286

SD 0.1414 0.2377

Here we have,

$\bar x_1 =3.286\\ \bar x_2 =2.907\\s_1 =0.2377\\ s_2 =0.1414\\n_1=19\\n_2=20$

The pooled Standard deviation

$s_p=\sqrt{\frac{(n_1-1)s_1^2(n_2-1)s_2^2}{n_1+n_2-2} } \\\\=0.1943$

So standard error for difference in population mean is

$s_{\bar x_1 - \bar x_2} = \sqrt{\frac{s_p^2}{n_1}+\frac{s_p^2}{n_2} } \\\\=0.0623$

by inputting the values we get 0.0623

Degree of freedom for t is

df = 19 + 20 - 2 = 37,

so t-critical value is 2.715.

So required confidence interval for

$\mu_{1} - \mu_{2}$ will be

$( \bar x_1 - \bar x_2) \pm t_{critical}*s_{\bar x_1 - \bar x_2}$

$=0.3793 \pm2.715*0.063\\\\=0.3793\pm0.1690$

So required confidence interval is (0.2103 , 0.5483).

6 0

3 years ago