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3 years ago

Will give brainless answer and 17 points

Mathematics

2 answers:

weqwewe [10]3 years ago

6 0

They are overlap by multiply
the set 3,9, cause they are congurent

larisa [96]3 years ago

6 0

Answer:

they are overlap by multiply

the set 3,9, cause they are congurent

Step-by-step explanation:

You might be interested in

Pia needs 2/3 yard of fabric to cover a bench. Which amount of fabric is greater than

Fudgin [204]

Answer:

5/6 and 7/9

Step-by-step explanation:

A and D are less than 2/3 so B and C is correct.

Hope this helps plz mark brainliest :D

6 0

3 years ago

I’m pretty sure the answer is a ?

irina [24]

I believe that it’s B

7 0

3 years ago

The accompanying data on x = current density (mA/cm2) and y = rate of deposition (m/min)μ appeared in a recent study.

gtnhenbr [62]

Answer:

a) $r=\frac{4(333)-(200)(5.37)}{\sqrt{[4(12000) -(200)^2][4(9.3501) -(5.37)^2]}}=0.9857$

The correlation coefficient for this case is very near to 1 so then we can ensure that we have linear correlation between the two variables

b) $m=\frac{64.5}{2000}=0.03225$

Now we can find the means for x and y like this:

$\bar x= \frac{\sum x_i}{n}=\frac{200}{4}=50$

$\bar y= \frac{\sum y_i}{n}=\frac{5.37}{4}=1.3425$

$b=\bar y -m \bar x=1.3425-(0.03225*50)=-0.27$

So the line would be given by:

$y=0.3225 x -0.27$

Step-by-step explanation:

Part a

The correlation coeffcient is given by this formula:

$r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}$

For our case we have this:

n=4 $\sum x = 200, \sum y = 5.37, \sum xy = 333, \sum x^2 =12000, \sum y^2 =9.3501$

$r=\frac{4(333)-(200)(5.37)}{\sqrt{[4(12000) -(200)^2][4(9.3501) -(5.37)^2]}}=0.9857$

The correlation coefficient for this case is very near to 1 so then we can ensure that we have linear correlation between the two variables

Part b

$m=\frac{S_{xy}}{S_{xx}}$

Where:

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}$

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}$

With these we can find the sums:

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}=12000-\frac{200^2}{4}=2000$

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i){n}}=333-\frac{200*5.37}{4}=64.5$

And the slope would be:

$m=\frac{64.5}{2000}=0.03225$

Now we can find the means for x and y like this:

$\bar x= \frac{\sum x_i}{n}=\frac{200}{4}=50$

$\bar y= \frac{\sum y_i}{n}=\frac{5.37}{4}=1.3425$

And we can find the intercept using this:

$b=\bar y -m \bar x=1.3425-(0.03225*50)=-0.27$

So the line would be given by:

$y=0.3225 x -0.27$

4 0

3 years ago

100 + 100 X (58 divided by 1000)

anastassius [24]

Step-by-step explanation:

$= 100 + 100 \times ( \frac{58}{1000} ) \\ = 100 + 5.8 \\ = 105.8 \: ans.$

8 0

3 years ago

Read 2 more answers

HELP NEEDED ASAP.....NO LINKS AND NO TROLLING

sveticcg [70]

Answer: I won't bother explaining cause you only want the answer

Step-by-step explanation:

page 1
Shift: a type of translation that moves the graph without changing its scale or shape or direction.

moving, location or points, rising, running (the last two are subjective I think there are better answers)

page 2 (right to left in rows)

y, adds

y, subtracts

x, adds

x, subtracts

Page 3

up 3, down 3, left 3, right 3

page 4

y = (x-2)^2 - 1

y = (x+1)^2 +3

8 0

3 years ago