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
anyanavicka [17]
3 years ago
9

Find the equation of the line that is perpendicular to y=3y-x=7 and contains the point (2,-1).

Mathematics
1 answer:
a_sh-v [17]3 years ago
3 0
First you want to get it into standard form. which would mean you get the x of the side of the y and divide everything by the y's coefficient in this case 3.

3y-x=a

3y=x+a

y=1/3x+a

Now your going to want to turn this into a perpendicular li e which means you flip the coefficient and make it negitive

y=-3x+a

then we fill in the points.

-1=-3(2)+a

Solve

-1=-6+a

-1+6=a

5=a

Now put it in standard form.

y=-3x+5
You might be interested in
Please help me out! And show your work :)) <3
8_murik_8 [283]

Answer:

mbnmf mkvdv dlbj fbljkf mgmbv m

Step-by-step explanation:

vk gmb flkmvfvv

3 0
3 years ago
Read 2 more answers
Help me plz bruh i need this doneeeee
NARA [144]
Answer 2. You just have to find wants similar and put it out front and then leave wants left in parentheses
5 0
3 years ago
Read 2 more answers
Punctele O, A, B, C sunt coliniare în această ordine, iar segmentele OA, AB și BC au lungimile exprimate în cm, prin numere natu
julia-pushkina [17]

Răspuns:

a) OC = 18cm

b) MN = 6cm

Explicație pas cu pas:

Găsiți diagrama la întrebarea atașată.

a) Din diagramă se poate observa că OC = OA + AB + AC

OC = 2n + 2n + 2 + 2n + 4

OC = 6n + 6

Următorul este să obțineți valoarea lui n:

OM = OA + AM

Să obținem segmentul AM;

Deoarece M este segmentul mijlociu al AC, atunci;

AM = AC / 2

AM = AB + BC / 2

AM = 2n + 2 + 2n + 4/2

AM = 4n + 6/2

AM = 2n + 3

Din moment ce OM = OA + AM

OM = 2n + 2n + 3

OM = 4n + 3

Dat fiind OM = 11

11 = 4n + 3

4n = 11-3

4n = 8

n = 2

Următorul pas este să calculați OC;

OC = 6n + 6

OC = 6 (2) + 6

OC = 18

Prin urmare, lungimea segmentului OC este de 18 cm

b) Această întrebare ne cere să găsim segmentul de linie MN.

Din diagramă, MN = AM - AN

Deoarece AM = 2n + 3 din întrebarea 1;

AM = 2 (2) +3

AM = 4 + 3

AM = 7

Acum, să obținem AN:

Din diagramă, AN = ON-OA și ON = OB / 2

AN = OB / 2 - OA

AN = (2n + 2n + 2) / 2 - 2n

AN = 4n + 2/2 - 2n

AN = 2n + 1 - 2n

AN = 2n-2n + 1

AN = 1

De la MN = AM - AN

MN = 7 - 1

MN = 6cm

Prin urmare, distanța dintre N, mijlocul segmentului OB și punctul M este de 6cm

6 0
3 years ago
Math quiz please help me out ASAP
Nastasia [14]

Answer:

The coordinates of point c: (7,5)

The coordinates of point D:(8,1)

3 0
3 years ago
Pls help math problem is hard
vazorg [7]

Answer:

Reflect over y axis and go 7 units down.

Step-by-step explanation:

It will match the triangles.

7 0
3 years ago
Other questions:
  • What is the surface area of the rectangular pyramid below?
    11·2 answers
  • Answer the following: GCF of 20 & 32 GCF of 45 & 75
    11·2 answers
  • Help plz asap !!!!!!!
    7·2 answers
  • 1. Could the number 0000 appear in a table of random digits? How likely is this?
    7·2 answers
  • The probability of a student taking both Spanish class and art class is 9/100 . The probability of a student taking art class is
    11·1 answer
  • How many factor pairs does 24 have? explain ​
    14·2 answers
  • While in Europe, if you drive 123 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per lite
    10·2 answers
  • Chrissy ate 10% of the Christmas cookies. If she ate 6 cookies, how many Christmas cookies were left?
    10·1 answer
  • Do all three pls I’ll give the brain award
    7·2 answers
  • Look at the image, can someone check this plz?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!