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
marin [14]
3 years ago
8

For the point P (-17,25) and Q(-10,30), fins the distance d(P,Q) and the coordinates of the midpoint M of the segment PQ.

Mathematics
1 answer:
Nonamiya [84]3 years ago
3 0

Answer:

Distance = 8.6

M = (-13.5,27.5)

Step-by-step explanation:

Distance = \sqrt{(x_{2 }- x_{1 })^2 + (y_{2 }- y_{1 })^2

= \sqrt{(-10_ }- (-17)_{ })^2 + (30_{ }- 25_{ })^2

= \sqrt{(-10_{ }+ 17_{ })^2 + 5^2_

= \sqrt{7^2+5^2}

= \sqrt{49+25}

= \sqrt{74}

= 8.6

Midpoint = (\frac{x_{2}+x_{1}}{2};\frac{y_{2}+y_{1}}{2})

= (-10+(-17)) ÷ 2 ; (30+25) ÷ 2

= -27 ÷2 ; 55 ÷ 2

= -13.5, 27.5

You might be interested in
Fake Question So It Doesnt Get Taken Down, What is 40992981x9977, Real Question, How do I change my pfp?
DedPeter [7]

go to where the bell is and where it says "ask question" and then do you see your little icon thingy? right there, click it.  hit edit profile. and then

it shoulld say this

Edit your profile

Preferences

Send info to email

Password

Your email

Profile picture

hit profile picture and boom it says upload and all that

7 0
3 years ago
Read 2 more answers
Please help WILL GET REPORTED IF ANSWERS NONSENSE FOR POINTS I am really struggling and need help It is a lot of points so try a
Anton [14]

Answer:

301.59

Step-by-step explanation:

your answer was almost right you just forgot to multiply by 9

4 0
4 years ago
A particle moving in a planar force field has a position vector x that satisfies x'=Ax. The 2×2 matrix A has eigenvalues 4 and 2
andrey2020 [161]

Answer:

The required position of the particle at time t is: x(t)=\begin{bmatrix}-7.5e^{4t}+1.5e^{2t}\\2.5e^{4t}-1.5e^{2t}\end{bmatrix}

Step-by-step explanation:

Consider the provided matrix.

v_1=\begin{bmatrix}-3\\1 \end{bmatrix}

v_2=\begin{bmatrix}-1\\1 \end{bmatrix}

\lambda_1=4, \lambda_2=2

The general solution of the equation x'=Ax

x(t)=c_1v_1e^{\lambda_1t}+c_2v_2e^{\lambda_2t}

Substitute the respective values we get:

x(t)=c_1\begin{bmatrix}-3\\1 \end{bmatrix}e^{4t}+c_2\begin{bmatrix}-1\\1 \end{bmatrix}e^{2t}

x(t)=\begin{bmatrix}-3c_1e^{4t}-c_2e^{2t}\\c_1e^{4t}+c_2e^{2t} \end{bmatrix}

Substitute initial condition x(0)=\begin{bmatrix}-6\\1 \end{bmatrix}

\begin{bmatrix}-3c_1-c_2\\c_1+c_2 \end{bmatrix}=\begin{bmatrix}-6\\1 \end{bmatrix}

Reduce matrix to reduced row echelon form.

\begin{bmatrix} 1& 0 & \frac{5}{2}\\ 0& 1 & \frac{-3}{2}\end{bmatrix}

Therefore, c_1=2.5,c_2=1.5

Thus, the general solution of the equation x'=Ax

x(t)=2.5\begin{bmatrix}-3\\1\end{bmatrix}e^{4t}-1.5\begin{bmatrix}-1\\1 \end{bmatrix}e^{2t}

x(t)=\begin{bmatrix}-7.5e^{4t}+1.5e^{2t}\\2.5e^{4t}-1.5e^{2t}\end{bmatrix}

The required position of the particle at time t is: x(t)=\begin{bmatrix}-7.5e^{4t}+1.5e^{2t}\\2.5e^{4t}-1.5e^{2t}\end{bmatrix}

6 0
3 years ago
24.Jill has $800 and is spending $30 per week. Gill has $150 and is saving $20
attashe74 [19]
Jill and Gill will have the same amount of money in week 13, they will both have $410.
5 0
3 years ago
Read 2 more answers
Thea scored an average of 13 points per game in her first 5 basketball games. In her 6th game, the average changed to 17 points
sammy [17]
Average of 5 games = 13
Total of 5 games = 13 x 5 = 65

Average of 6 games = 17
Total of 6 games = 102

6th game = 102 - 65 = 37

---------------------------------------------------------------------
Answer: Her score for the 6th game as 37.
---------------------------------------------------------------------
6 0
3 years ago
Other questions:
  • 12(x-360)=120 solve for x
    15·2 answers
  • How to rewrite an expressions with negative exponents so that the exponent is positive?
    13·1 answer
  • Hi everyone! I need help with this bonus question on this assignment does anyone know this?
    6·1 answer
  • Ayayay! I am stuck again :) <br><br> Can someone help me out please?
    14·1 answer
  • Circumference involves u its or squate units
    5·1 answer
  • 1)A system of equations is shown below:
    11·2 answers
  • Karl's Kayaks rents kayaks for $25 plus $39 per hour. You do not want to spend more than $185. For
    6·1 answer
  • Plz help y’all plz I do anythinv
    12·1 answer
  • Which two of the following are not characteristics of surveys?
    8·1 answer
  • Find the equation of the line The line has a slope of 1.3 and passes through the point (-2.3, -3.2)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!