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
Vinil7 [7]
3 years ago
12

Solve the following system of equations by using the inverse of a matrix.

Mathematics
1 answer:
Zepler [3.9K]3 years ago
6 0

Answer:

(x, y, z) = (-8,4,-2)

Step-by-step explanation:

.......................................

You might be interested in
Please help me with 1,2,3,4,5,6,7,8,9 tell me how u get it and the answer please I really need help
NNADVOKAT [17]

Answer:

1) x = 15

Step-by-step explanation:

We use the Pythagorean thm for these questions. Where a and b are the legs (So order doesn't matter), and where c is the hypotenuse

1)

a² + b² = c²

9² + 12² = x²

81 + 144 = x²

x² = 225

You square root each side so you can get rid of the exponent on x.

\sqrt{x^2} =\sqrt{225}

x = 15

8 0
3 years ago
PLEASE HELP ME! find the measure of each numbered angle. pls
zzz [600]

Answer: <em>∠1 = 37.5°; ∠2 = 37.5°; ∠3 = 133°.</em>

Step-by-step explanation:

<em>∠1 = ∠2 = (180° - 105°) ÷ 2 = 37.5°</em>

<em>∠3 = 180° - 23° - 24° = 133°</em>

3 0
2 years ago
How could you use the Distributive Property to rewrite the expression −(8 + 12)?
guajiro [1.7K]

Answer:

-20

Step-by-step explanation:

-8-12=-20

8 0
3 years ago
Read 2 more answers
Prescription for marilyn jones
sattari [20]

Answer:

The pharmacy should give Marilyn 135 tablets to fill the isoniazid for 45 days

Step-by-step explanation:

Marilyn has to take isoniazid 100 milligrams tablet 3 times a day which means three tablets a day.

The pharmacy has to provide the tablets for 45 days

So,

Total tablets that will be provided by the pharmacy are:

45*3 = 135 tablets ..

4 0
3 years ago
The perimeter of a rectangle is 12cm the area is 5cm square what is the length of the sides
Helen [10]

Answer:

???

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • DEFG is an isosceles trapezoid. Find the measure of E.
    5·2 answers
  • A sequence is defined recursively by the formula f(n + 1) = f(n) + 3 . The first term of the sequence is –4. What is the next te
    14·1 answer
  • A bulldozer could carry 1/5 of a ton of sand. If a park needed 4 tons of sand, how many loads would the bulldozer need to carry?
    14·2 answers
  • 6x + y = -39 <br> 3x + 2y = -15 <br><br> elimination using multiplication
    10·1 answer
  • Tyreese is using algebra tiles to solve the equation below.
    8·2 answers
  • Tia cut a 4 meter 8 centimeter wire into 10 equal pieces what is the answer
    7·1 answer
  • Solve the following equation algebraically show the steps: <br><br><br> n/3 -5 = 5
    14·1 answer
  • Which of the following is an example of simple harmonic motion?
    12·1 answer
  • If right answer good review
    9·2 answers
  • Seven more than one fourth of a number is one less than one third of a number
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!