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
Dafna11 [192]
3 years ago
15

Solve the system by using elementary row operations on the equations. Follow the systematic elimination procedure.

Mathematics
1 answer:
Natali5045456 [20]3 years ago
4 0

Answer:

Step-by-step explanation:

The given equation is expressed as

x1 + 2x2 = -24- - - - - - - - --1

x1 + 7x2 = -11- - - - - - - --2

We would eliminate x1 by subtracting equation 2 from equation 1. It becomes

- 5x2 = - 13

Dividing both sides of the equation by - 5, it becomes

- 5x2/- 5 = - 13/- 5

x2 = 13/5

Substituting x2 = 13/5 into equation 2, it becomes

x1 + 7 × 13/5 = -11

x1 + 91/5 = - 11

x1 = - 11 - 91/5

x1 = - 146/5

You might be interested in
Help please :) (asap)
ryzh [129]

x^2 - x - 6= 0

(x - 3) ( x + 2) = 0

Equating

x - 3 = 0

x = 3

x+ 2= 0

x = -2

4 0
3 years ago
Read 2 more answers
Is 3/8 equivalent to 12/24
Ghella [55]
No because 3 x 4 = 12 and 8 x 4 ≠ 24
4 0
2 years ago
If BAC = 320°, what is the measure of BC?
melisa1 [442]

Answer:

BC = 40º

BMC = 40º

Step-by-step explanation: Since the measure the major and minor arcs add up to 360º, just subtract 320 from 360 to find BC which is 40º. <BMC is also 40º because the measure of the arc is equal to its corresponding angle.

3 0
3 years ago
NEED HELP FAST! What is the value of x?<br> A. 6<br> B. 6sqrt3<br> C. 12<br> D. 12sqrt3
Nimfa-mama [501]

Answer:

x = 6√3 is the correct answer of this question ...plz mark my answer as brainlist plzzzz vote me

6 0
3 years ago
Question is below. 20 characters
erastova [34]

Answer:

Step-by-step explanation:

g(x) = x+4

g(8) = 8+4 = 12

4 0
3 years ago
Other questions:
  • Which property is demonstrated by the equation            8+(9+3)=(8+9)+3.           The choices are commutative property of add
    6·2 answers
  • What is the value of \dfrac{x^2}{y^4}
    14·2 answers
  • Express x in terms of y for the linear equation 2/3X + 4Y = -7
    7·1 answer
  • . Una persona desea realizar una pintura para su próxima exposición en donde esta tenga tres colores fluorescentes y dos colores
    7·1 answer
  • 4) The cost C, in dollars, for Domino's Pizza delivered depends on the number p, of pizzas ordered.
    12·1 answer
  • Pleasee pleaseee help me so I can not get in trouble because my grades
    10·2 answers
  • Help please <br><br><br><br> Show two different ways to factor<br> -2x - 10
    5·1 answer
  • Please help me with this I'll give brainliest to best answer!
    6·1 answer
  • Find the diameter of the object. 6 cm
    10·2 answers
  • Helppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!