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
ElenaW [278]
2 years ago
13

Help help help and help

Mathematics
1 answer:
Alexus [3.1K]2 years ago
6 0

Answer:

x= 8.5 and y= 2

Step-by-step explanation:

You might be interested in
The following data are the distances between 20 retail stores and a large distribution center. The distances are in miles.
Free_Kalibri [48]

Answer:

1191.4 ; 34.5

Step-by-step explanation:

Given the data:

29; 37; 38; 40; 58; 67; 68; 69; 76; 86; 87; 95; 96; 96; 99; 106; 112; 127; 145; 150

The sample variance and standard deviation can be obtained thus :

Σ(X - m)² / (n - 1)

Where, m = mean of the sample

n = sample size

The standard deviation equals, sqrt(variance )

Using a calculator:

The variance, σ² ;

Mean = Σx / n = 1681 / 20 = 84.05

(x -m)^2

[(29-84.05)^2 + (37-84.05)^2 + (38-84.05)^2 + (40-84.05)^2 + (58-84.05)^2 + (67-84.05)^2 + (68-84.05)^2 + (69-84.05)^2 + (76-84.05)^2 + (86-84.05)^2 + (87-84.05)^2 + (95-84.05)^2 + (96-84.05)^2 + (96-84.05)^2 + (99-84.05)^2 + (106-84.05)^2 + (112-84.05)^2 + (127-84.05)^2 + (145-84.05)^2 + (150-84.05)^2] / 19

22636.95 / 19

= 1191.4184 = 1191.42

Standard deviation = sqrt( Variance)

Standard deviation = sqrt(1191.4184)

Standard deviation = 34.516929 = 34.52

4 0
3 years ago
Find the slope of the line whose equation is 8y = 4 - 3x.
Sidana [21]
The slope is 3
whatever is in front of the x is the slope

5 0
3 years ago
Read 2 more answers
Which situation could be represented by the equation - 30+30 = 0?
Shalnov [3]

Answer:

"Donna loaned $30 to her brother. He then paid her back $30 the next day" is the correct situation

8 0
2 years ago
St<br>Question 1<br>Calculate the derivative of y = f(x) = 3 x(4x + 7)<br>Your answer:<br><br>​
kondor19780726 [428]

Answer:

\frac{dy}{dx} = 24 x + 21

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given that the function

      y = f(x) = 3 x ( 4 x + 7)

     y  = 3 x ( 4 x + 7)  

    y = 12 x² + 21 x ..(i)

Differentiating equation (i) with respective to 'x' , we get

\frac{dy}{dx} = 12 (2x) +21 (1)

\frac{dy}{dx} = 24 x + 21

6 0
2 years ago
What is the supplement of 164 degrees?
Margaret [11]
Supplements add up to 180°
so just subtract 164 from 180

 180
<u>-164
</u>   16

3 0
3 years ago
Read 2 more answers
Other questions:
  • The goals against average (A) for a professional hockey goalie is determined using the formula A = 60 a equals 60 left-parenthes
    9·2 answers
  • You have 800 quarter inch long beads if u use them to make all 16 bracelets what will be the rage of beads per bracelet
    9·2 answers
  • If f(a) = 12, what is the value of a?
    10·1 answer
  • Find g(x), where g(x) is the reflection across the x-axis of f(x)=x.
    13·2 answers
  • I need help with number 17 please, and show work. I keep getting different answers. <br><br> 1
    9·1 answer
  • -2y-4=4(y-1) how do i solve this?
    13·1 answer
  • PLEASEEE HELPPPP!!! I NEED HELP
    5·2 answers
  • Solve for xx. Round to the nearest tenth, if necessary. ​
    5·2 answers
  • Britney bought 2 apples, 5 bananas, and 8 oranges at the grocery store.
    7·2 answers
  • What is the area of this shape?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!