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
Andru [333]
3 years ago
13

Solve the system using the elimination method.

Mathematics
1 answer:
seraphim [82]3 years ago
3 0

Answer:

Step-by-step explanation:

3x + 2y - z = 8

-3x + 4y + 5z = -14

6y + 4z = -6

3x + 2y - z = 8

-3x + 9y - 12z = 42

11y - 13z = 50

6y + 4z = -6

66y  - 78z = 300

-66y - 44z =  66

-122z = 366

z = -3

3x + 2y + 3 = 8

3x + 2y = 5

-3x + 4y -15 = -14

-3x + 4y = 1

3x + 2y = 5

-3x + 4y = 1

6y = 6

y = 1

3x + 2 + 3 = 8

3x + 5 = 8

3x = 3

x = 1

x=1, y = 1, z = -3

You might be interested in
2(3 – 8y)
Hoochie [10]

Answer:

21

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The distance that an object covered in time was measured and recorded in the table below.True/False: The distance covered is dir
Sedaia [141]

Answer:

true

Step-by-step explanation:

did the test

5 0
3 years ago
A large nest of recently hatched bald eagles is located at the top of the Eiffel Tower (which is 324 meters tall) and is attract
Mariulka [41]

9514 1404 393

Answer:

  80.5°

Step-by-step explanation:

The applicable trig function is the tangent.

  Tan = Opposite/Adjacent

In this scenario, the side opposite the angle is the tower height, 324 m. The side adjacent is the distance to the tower, 54 m. Then the angle α is related by ...

  tan(α) = 324/54

The value of the angle with this tangent is found using the arctangent function:

  α = arctan(324/54) ≈ 80.5°

She should set her binoculars to 80.5°.

6 0
2 years ago
What is the square number of 13 27 81 21 43 48 23 39 45
Setler [38]

The given numbers are 13, 27, 81, 21,43, 48,23,39,45.

Square number is that number which is a perfect square means if you multiply a number by itself the number you obtained is a perfect square i.e it's square root is a natural number.

√13=not a natural number

√27=√3×√3×√3=3√3=irrational number

√81=√9×√9=9=a natural number

√21=not a natural number

√43=not a natural number

√48=4√3=not a natural number

√23=not a natural number

√39=not a natural number

√45=3√5=not a natural number

So, out of following numbers 13 27 81 21 43 48 23 39 45→81 is the only square number.

8 0
3 years ago
Read 2 more answers
You roll a single die numbered from 1 to 6. What are the odds of rolling a 3
vodomira [7]

Answer:

1/6

Step-by-step explanation:

there are 6 numbers on a die, and only one of them is 3.

so you would get 1/6 (because only one number out of 6 is 3)

8 0
3 years ago
Other questions:
  • Simplify 8x + 10y + 9x - 3y by identifying and combining like terms. A. 17x + 13y B.24y C.17x+7 D.17x + 7y
    10·2 answers
  • A triangular prism has the same number of face true/false
    7·1 answer
  • Circle A has a radius of 2.0 cm. Find the radius of circle A dialated by 9.6
    6·1 answer
  • What are these two questions please help
    13·1 answer
  • I need help im stuck on this please I will be thankful​
    6·2 answers
  • A 90 % confidence interval for the average salary of all CEOs in the electronics industry was constructed using the results of a
    15·1 answer
  • Evaluate the expression 2v^3•v^0
    11·1 answer
  • Please click on the image and answer me ​
    15·2 answers
  • The ratio of boys to girls in a class is 7:9
    12·1 answer
  • Question 2. I have another question on my feed. Please help me solve!!!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!