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
Fittoniya [83]
3 years ago
15

In triangle ABC, the size of angle B is 4 times the size of angle A, and the size of angle C is 6°

Mathematics
1 answer:
amid [387]3 years ago
4 0

Answer:

<A = 18.6 Degree

<B =74.4 Degree

<C = 87 Degree

Step-by-step explanation:

Sum of all the angles of triangle is 180

as given ,

<A = ?

<B = 4<A

<C = 5 <A - 6

As per rule ,

<A + <B +<C = 180

<A + 4 <A + 5<A - 6 = 180

10 <A - 6 = 180

10 <A = 180 + 6

<A = 186 / 10

<A = 18.6 Degree

Hence ,

< B =  4 X (18.6)

< B = 74.4 Degree

and

<C = 5 (18.6) - 6

<C = 87 Degree

PROOF

<A + <B + <C = 180

18.6 + 74.4 + 87 = 180

180 = 180

You might be interested in
State the domain and range of each relation.
adelina 88 [10]

Answer:

Yes It is function.

Step-by-step explanation:

Domain= { 3,4,6 }

Range = { 5 }

6 0
2 years ago
Please help ASAP!!
marta [7]

Answer:

D. NM=12; mK=70°

Step-by-step explanation:

KN≈KM so they have the same 55° and then

180°-55°-55°=70° and

6*2=12

3 0
3 years ago
Choose all that apply :)
Veronika [31]

Answer:

1  Multiply the first equation by -1 then add the equations together

3. Multiply the second equation by -1 then add the equations together

4. Multiply the first equation by -2 then add the equations together

5. Multiply the first equation by 2 the second by -1 then add the equations together

Step-by-step explanation:

x+y = 7

2x+y = 5


1  Multiply the first equation by -1 then add the equations together

-x+-y = -7

2x+y = 5

---------------

x    =-2   then solve for y


2.  Multiply the second equation by -1 first equation by -1 then add the equations together

-x+-y = -7

-2x-y = -5

---------------

-3x -2y = -12

Still have both variables


3. Multiply the second equation by -1 then add the equations together

x+y = 7

-2x-y =- 5

----------------------

-x = 2


4. Multiply the first equation by -2 then add the equations together

-2x+-2y = -14

2x+y = 5

--------------

    -y = -9


5. Multiply the first equation by 2 the second by -1 then add the equations together

2x+2y = 14

-2x-y = -5

--------------

y = 9

7 0
3 years ago
Fiona deposits $4,000 at the end of each year in an account earning 2.15% interest, compounded annually. What is the future valu
7nadin3 [17]
The formula of the future value of annuity ordinary
Fv=pmt [(1+r)^(n)-1)÷r]
Fv future value
Pmt payment per year 4000
R interest rate 0.0215
N time 5 years

Fv=4,000×(((1+0.0215)^(5)−1)÷(0.0215))
fv=20,878.69
7 0
3 years ago
What is 1 + 1 will give brainliest
Alexxandr [17]

Answer:

2

Step-by-step explanation:

Jk its window

4 0
2 years ago
Read 2 more answers
Other questions:
  • Please help i don't know the answer to number 11
    8·1 answer
  • What is the sum of 87 and 234252464375675647
    15·2 answers
  • Find the value of y-<br> y^2=169
    5·2 answers
  • What does the equation x^2+y^2=14 represent?
    12·1 answer
  • If 4 out of 20 people have pets in their home, what percent is this?​
    13·2 answers
  • Will someone help me?
    15·2 answers
  • Estimate 31,969 divided by
    14·1 answer
  • HELP PLSSS!!! NO LINKS!!!
    15·1 answer
  • Helpp!! ill give brainliest! just explain a little at least
    12·1 answer
  • Which table represents a nonlinear function?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!