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
Len [333]
3 years ago
11

Solve the system of equations.

Mathematics
2 answers:
Viefleur [7K]3 years ago
6 0
The value of y is -2. Also, x= 4, z=0.
barxatty [35]3 years ago
3 0
Pick 1 value to eliminate in 2 equations
let's eliminate z

add last equation  to first one

2x+3y-z=2
<u>x-3y+z=10 +</u>
3x+0y+0z=12

3x=12
x=4
that's nice
sub that in last 2 equations and minus 4 from both sides

y-z=-2
-3y+z=6
add them

y-z=-2
<u>-3y+z=6 +</u>
-2y+0z=4

-2y=4
divide -2
y=-2


y=-2
You might be interested in
Help is in 1 minute<br> !!!!!!!!!!!!!!!!!!!!!!!!!!
grin007 [14]
The answer to this question is A
6 0
2 years ago
Find the length of the unknown side. Round your answer to the nearest tenth.
Paraphin [41]

Answer:

<em>The correct option is:  11.5</em>

Step-by-step explanation:

Suppose, the length of the unknown side is  x

So, here the length of hypotenuse is 14 and the lengths of other two sides are 8 and x.

As the given triangle is right angle triangle, so <u>using Pythagorean theorem</u>, we will get.........

8^2+x^2= 14^2\\ \\ 64+x^2=196\\ \\ x^2=196-64=132\\ \\ x=\sqrt{132}=11.489...\approx 11.5

<em>(Rounded to the nearest tenth)</em>

So, the length of the unknown side is 11.5

6 0
3 years ago
Read 2 more answers
Please help me on #18, don't know how to do the question.
svetlana [45]

Option B) Determine the volume of the cake V= πr²h and divide that amount by 18

<u>Step-by-step explanation:</u>

  • It is given that, the birthday cake is in the shape of the cylinder.
  • Therefore, to find the entire volume of the cake, the volume of the cylinder formula is used.

<u>The volume of the cylinder is given by,</u>

Volume of the birthday cake = πr²h

After that, it was asked to find the volume of each piece of the cake.

In this case, the birthday cake is cut into 18 pieces.

We already know the total volume of the birthday cake which is πr²h.

In order to find the volume of each piece of cut cake, the total volume must be divided by the number of parts it has been cut into pieces.

Here, the whole part of the cake is 1.

The number of parts it has been divided after it is made into pieces = 18 parts.

Therefore, the volume of the birthday cake must be divided by 18 to get the volume of each piece of cake.

Option B) Determine the volume of the cake V= πr²h and divide that amount by 18 is correct.

8 0
3 years ago
How many pounds are in 3/4 of a ton?
alexandr402 [8]
The answer is 1,500 pounds are in 3/4 of a ton.
Hope this helps.
7 0
4 years ago
Read 2 more answers
What is 2/3+1/2 equal to
Ahat [919]
2/3 + 1/2 is 7/6
Hope this helps!
5 0
3 years ago
Read 2 more answers
Other questions:
  • Plzzzzzzzzzzzzzzzzz help me
    10·1 answer
  • What the answer to this question
    6·1 answer
  • Please help me asap!!
    15·1 answer
  • Find the equation of the line containing (2, -5) and (6, 3).
    12·1 answer
  • Which linear function represents the line given by the point-slope equation y +7=(x + 6)?
    9·1 answer
  • Can someone explain this question?I know the answer is t=0 but don't know why:(
    11·2 answers
  • A new version of the Medical College Admissions Test (MCAT) was introduced in spring 2015 and is intended to shift the focus fro
    15·1 answer
  • What is the missing number? 17- =8​
    7·1 answer
  • Y=4x-2, y=x+3 the solution to the system of equation
    5·1 answer
  • Write the possible combinations of coins that could make $3.55
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!