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
r-ruslan [8.4K]
4 years ago
5

Solve this system: 2x+5y+z=3 x-3y+2z=2 -x+2y-3z=-7

Mathematics
1 answer:
12345 [234]4 years ago
4 0

Answer:

x= -3

y= 1

z= 4

Step-by-step explanation:

Please see the attached pictures for the full solution.

*I evaluated the determinants using Sarrus' rule (see last picture):

∆= aei +bfg +cdh -gec -hfa -idb

*The symbol '∆' (delta) is usually used to denote a determinant.

You might be interested in
Joe purchased a tray of 48 petunias to plant in his garden. The graph shows points representing the number of flowers left to pl
Dovator [93]
From the graph, we can say that the system can be represented by a linear function. A linear function has a standard form of:

y = mx + b where m is the slope and b is the y-intercept.

From the image, b would have a value of 48. The slope can be calculated as follows:

slope = ( 48 - 36 ) / (0 - 1) = -12

The equation can be written as:

y = -12x +48
or
12x + y = 48
6 0
4 years ago
Read 2 more answers
What is a force of attraction between an object and the earth due to gravity?
nasty-shy [4]

Newton's law of gravitation says that the force due to gravitation between two objects with masses m₁ and m₁ is given by the formula

F=G\dfrac{m_1m_2}{r^2}

Where r is the distance between the objects, and G is the gravitational constant (about 6.674×10⁻¹¹ m³⋅kg⁻¹⋅s⁻²)

3 0
3 years ago
Help with math I need, do not understand I do (yoda speech) lol.
lisov135 [29]
It’s the purple one!
7 0
3 years ago
Read 2 more answers
Hey! i’ll give brainliest please help.
marta [7]

Answer:

I think Darius I is the correct answer.

6 0
3 years ago
Kevin is 3 years older than Daniel. Two years ago, Kevin was 4 times as old as Daniel. How old is Kevin now?
GuDViN [60]
Let k and d be the Kevin's age and the Daniel's age;
We have the equation:
k = 3 + d;
k - 2 = 4( d - 2 );
We have 3 + d -  2 = 4d - 8;
Then, d + 1 = 4d - 8;
9 = 3d;
d = 3.
Finally, k = 6 years.












6 0
3 years ago
Read 2 more answers
Other questions:
  • 36 minus 20 minus 32 times 1/4
    8·2 answers
  • The school day consists of six block classes with each being 60 minutes long. Lunch is 25 minutes. Transfer time between classes
    14·2 answers
  • Solve for z.<br><br> z/4 −2<br> = 2<br><br><br> z =
    5·1 answer
  • Solve this problem 9=1+8×-8​
    6·2 answers
  • Find the value of -9-6-(-8).<br> A)7<br> B)-7<br> C)-11<br> D)11
    11·1 answer
  • Jane is going to fence in her backyard. she has purchased a 100 feet of fencing and knows that she wants to fence in a rectangul
    15·1 answer
  • There are 600 adults at the beach 2 3rds of them r men how many r women/
    6·1 answer
  • -2(2x-5)=-74 show all work pleaseeeee 15 points!
    8·2 answers
  • What’s the solution to the equation
    8·1 answer
  • Please answer who ever answers first and correct will get brainliest
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!