1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alexxx [7]
3 years ago
12

Check attachment for picture but please help with extraneous solution:

Mathematics
2 answers:
Firlakuza [10]3 years ago
6 0
It's C.!!!!!!!!!!!!!
Alinara [238K]3 years ago
3 0
It is going to be c ok your welcome
You might be interested in
Mr. James McWhinney, president of Daniel-James Financial Services, believes there is a relationship between the number of client
vlada-n [284]

Answer:

\sum_{i=1}^n x_i = 334

\sum_{i=1}^n y_i =611

\sum_{i=1}^n x^2_i =13970

\sum_{i=1}^n y^2_i =51581

\sum_{i=1}^n x_i y_i =26584

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}=13970-\frac{334^2}{10}=2814.4

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}=26584-\frac{334*611}{10}=6176.6

And the slope would be:

m=\frac{6176.6}{2814.4}=2.195

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

\bar x= \frac{\sum x_i}{n}=\frac{334}{10}=33.4

\bar y= \frac{\sum y_i}{n}=\frac{611}{10}=61.1

And we can find the intercept using this:

b=\bar y -m \bar x=61.1-(2.195*33.4)=-12.213

So the line would be given by:

y=2.195 x -12.213

Step-by-step explanation:

The data given on this case is:

x: 14,12,20,16,46,23,48,50,55,50

y: 24,24,28,30,80,30,90,85,120,110

For this case we need to calculate the slope with the following formula:

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}

So we can find the sums like this:

\sum_{i=1}^n x_i = 334

\sum_{i=1}^n y_i =611

\sum_{i=1}^n x^2_i =13970

\sum_{i=1}^n y^2_i =51581

\sum_{i=1}^n x_i y_i =26584

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}=13970-\frac{334^2}{10}=2814.4

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}=26584-\frac{334*611}{10}=6176.6

And the slope would be:

m=\frac{6176.6}{2814.4}=2.195

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

\bar x= \frac{\sum x_i}{n}=\frac{334}{10}=33.4

\bar y= \frac{\sum y_i}{n}=\frac{611}{10}=61.1

And we can find the intercept using this:

b=\bar y -m \bar x=61.1-(2.195*33.4)=-12.213

So the line would be given by:

y=2.195 x -12.213

5 0
3 years ago
Please see attached picture.
Sati [7]

Answer:

B

Step-by-step explanation:

the arc length is calculated as

arc = circumference of circle × fraction of circle

     = 2πr × \frac{90}{360}

     = 2π × 16 × \frac{1}{4}

     = 32π × \frac{1}{4}

     = \frac{32\pi }{4}

     = 8π ft

3 0
1 year ago
What is the constant of variation in the equation
Agata [3.3K]
The constant in this equation is 1/3 because it's a number
3 0
3 years ago
The equation of a line is y = 1.5x − 2. What are its slope and y-intercept?
miv72 [106K]

Answer:

The slope is 1.5 and the y intercept is -2

Step-by-step explanation:

y = 1.5x -2

This is in the form y = mx+b where m is the slope and b is the y intercept

The slope is 1.5 and the y intercept is -2

3 0
3 years ago
Chloe, Hannah and George are fundraising to cover their expenses to go on an educational trip They wash cars at community hall a
PtichkaEL [24]

Chloe, Hannah and George shared the money in the ratio 2:3:4

Let x be the amount shared

Chloe share amount = 2x

Hannah's share amount = 3x

George's share amount = 4x

Given , Georges share is $452

So 4x = 452

Divide by 4 on both sides

x= 113

Chloe share amount = 2x = 2(113)= 226

Hannah's share amount = 3x = 3(113) = 339

Total amount they raised = 226 + 339 + 452 = $1017

3 0
2 years ago
Read 2 more answers
Other questions:
  • Divide. -3 3/4 divided by 3
    6·1 answer
  • Help me with this please
    13·1 answer
  • Given h(x) = -x - 5, find h(0)​
    15·2 answers
  • In △ABC, point M is the midpoint of AB , point D∈ AC so that AD:DC=2:5. If AABC=56 yd2, find ABMC, AAMD, and ACMD.
    6·1 answer
  • Peter kim wanted to buy a new car.To help finance the purchase he decided to sell his organic markets bond in the secondary mark
    12·1 answer
  • Jaden carried her receipt for the doctor visit to the cashier. The amount billed was $112 she has $29 copay how much will she be
    8·1 answer
  • Sam plans to walk his dog a distance of a mileHe walks 3/8 of a mile and stop and get a bottle of waterThen he walks 1/8 of a mi
    11·1 answer
  • Use the discriminant to determine the nature of the roots of the following equation.
    10·1 answer
  • Please help me out, I will give you brainlest when it gives me the option to.
    14·1 answer
  • A bag has 30 towels numbered 1 to 30. What's the ratio for odds to evens?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!