All categories

3 years ago

How tp find the regression line y on x find out.

Mathematics

1 answer:

dalvyx [7]3 years ago

6 0

Answer:

y=-0.514x+5.8

Step-by-step explanation:

You might be interested in

Diagonal AC divides the trapezoid ABCD (with bases AD and BC , AD>BC) into two similar triangles, △ABC and △DCA. Find AC if B

dedylja [7]

Answer:

AC= 6 cm

Step-by-step explanation:

It is given that ABCD is a trapezoid

Also AC divides the trapezoid into two similar triangles

ΔABC≈ΔDCA

The ratio of corresponding sides of similar triangles are equal, so we have

$\frac{AB}{CD} =\frac{BC}{AC} =\frac{AC}{AD}$

now we can take

$\frac{BC}{AC} =\frac{AC}{AD}$

$\frac{4}{AC} =\frac{AC}{9}$ ( since BC=4 and AD= 9)

now we cross multiply

$4(9)=AC^{2}$

$AC^{2}=36$

$AC=\sqrt{36}$ (taking square root )

AC= 6 cm

8 0

4 years ago

Read 2 more answers

Amaia purchased two blouses for $12.50 each and a skirt for $11.25. The sales tax rate is 8.5%. How much total sales tax will Am

Svetach [21]

Answer:

Sales Tax: $3.08

Step-by-step explanation:

When you add the price of the items up it totals $36.25. To find the sales tax you need to take 8.5% and turn it into a decimal which is 0.085. You need to take this decimal 0.085 and multiply by $36.25 which will give you $3.08 for sales tax.

3 0

3 years ago

The table shows the age, in years, of employees in a company.

joja [24]

Answer:

a) The modal class for this case represent the class with the highest frequency

And for this case would be $24$ with the highest frequency 8

b) $\bar X = \frac{19*3 + 21*2 + 23*7 +25*8}{3+2+7+8} =23$

Step-by-step explanation:

Part a

The modal class for this case represent the class with the highest frequency

And for this case would be $24$ with the highest frequency 8

Part b

For this case we need to find the mid point of each interval:

Interval Midpoint Frequency

18-20 19 3

20-22 21 2

22-24 23 7

24-26 25 8

And we can find the sample mean with this formula:

$\bar X = \frac{\sum_{i=1}^n f_i x_i}{n}$

And replacing we got:

$\bar X = \frac{19*3 + 21*2 + 23*7 +25*8}{3+2+7+8} =23$

4 0

3 years ago

Please help with this!!! 8 points!!!

Leviafan [203]

Answer:

Step-by-step explanation:

6 0

3 years ago

There are 30 students in a class. Which equations represent the situation if the number of boys

aalyn [17]

Step-by-step explanation:

A. b x 30 = 7E. b x 7 =30C. b = 30 + 7

3 0

3 years ago

How tp find the regression line y on x find out.​

How tp find the regression line y on x find out.