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]
3 years ago
5

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

Mathematics
1 answer:
12345 [234]3 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
Really need help with this problem
liq [111]

Answer:

29.24

Step-by-step explanation:

p= 27

b= 48

now finding the value of x,

tanx°= p/b

=27/48

=0.56

now,

x°= tan-¹ 0.56

= 29.24

8 0
2 years ago
A man jogs to the shop and back in half an hour on the way he jogs at 4m/s and on the way back he jogs at 5m/s ignoring time spe
pochemuha
Ratio 4:5
There are 9 total.
30 mins = 1800 secs. 
1800 divided by 9 = 200
200 secs = 3mins 20secs
200 is one "part" of the ratio, so multiply it by 4, then 5
800:1000
                           This is the important one
                                           V
13mins, 20secs: 16mins 40secs
Distance is speed x time,
16mins x 4 = 64
40 secs = 2/3
 x 4 = 1.6666
Distance to shop - 65.6m

5 0
3 years ago
Analyze the diagram below and answer the question that follows.
pshichka [43]

Answer:

A:sin (J) >cos (L)

Step-by-step explanation:

Hopefully this helps

7 0
2 years ago
The actual distance between parks is 24 miles On a map these parks are 8 inches apart How many miles are equal to one inch on th
vaieri [72.5K]

Each inch in the map is equivalent to 8 miles.

Explanation:

There is a distance of 24 miles between two parks. This 24 miles is represented by an 8-inch gap in the map.

So 8 inches on that particular map = 24 miles in real life.

To find the distance that an inch on the map represents we must divide both sides of the above equation. Since we need to calculate how much distance 1 inch represents we divide both the sides by 8 so that 8 inches on the map changes into 1 inch.

\frac{8}{8} inches on the map = \frac{24}{8} miles between the two parks in real life,

1 inch on that particular map = 3 miles in real life.

So each inch on the given map is equal to 8 miles in real life.

5 0
3 years ago
You have a set of 10 cards numbered 1 to 10. You choose a card at random. Event A is
Evgesh-ka [11]

Answer:

35% or 35/100

Step-by-step explanation:

Gage Millar, Algebra 2 tutor

Choosing a number LESS than (not equal to 8) is 7/10 (1,2,3,4,5,6,7)

Chosing an even number is 5/10 (2,4,6,8,10)

so just multiply 7/10 x 5/10 to get 35 over 100, or a 35% chance

6 0
2 years ago
Other questions:
  • Quadrilateral ABCD is inscribed in the circle. If m∠A = 95°, what also must be true?
    6·2 answers
  • How many license plates are possible consisting of 4 letters followed by 2 digits, if the first letter must be a C? Repetition i
    7·2 answers
  • HELP What is the sum of 1000x and 2000x
    11·2 answers
  • See geometry question above.
    9·1 answer
  • A researcher working in a Human Resources department was interested in gender and sales figures so he conducted a t-test. The me
    11·1 answer
  • Please help need answer
    5·1 answer
  • A family wants to rent a car to go on vacation company a charges $70.50 and $.14 per mile Company B charges $40.50 and $.10 per
    10·1 answer
  • Someone please help me, I’m begging! I will brainliest and everything!! 20 (points) too
    11·1 answer
  • I need help with this question can some please help me !
    10·1 answer
  • Consider the function f whose graph is shown below. Find f(-2)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!