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
Nadusha1986 [10]
3 years ago
6

What is the value of the x varlable in the solution to the following system of equations?

Mathematics
2 answers:
BigorU [14]3 years ago
8 0
Do elimination
2x + y = 3
x - y = 3
Add these
3x = 6
X = 2
Plug in 2 for x
4(2) + 2y = 6
8 + 2y = 6
2y = -2
X = 2, y = -1
Komok [63]3 years ago
6 0

Answer:

-1

Step-by-step explanation:

You might be interested in
Determine the values of c so that the following functions represent joint probability distributions of the random variables X an
Anna11 [10]

Answer:

The joint probility density will be c = 1/36

The joint probability distribution will be c = 1/15

Step-by-step explanation:

For step by step explanation see the pucture attached

7 0
3 years ago
Read 2 more answers
The capacity of a beamer is 0.1 liter. convert this to milliliters
Vladimir [108]

A milliliter is a thousandth of a liter. 1,000 milliliters (mL) are in a liter. So, multiply 0.1 by a thousand to find the answer. The answer is 100.

3 0
3 years ago
Given the position of the particle, what the position(s) of the particle when it’s at rest
choli [55]

The position function of a particle is given by:

X\mleft(t\mright)=\frac{2}{3}t^3-\frac{9}{2}t^2-18t

The velocity function is the derivative of the position:

\begin{gathered} V(t)=\frac{2}{3}(3t^2)-\frac{9}{2}(2t)-18 \\ \text{Simplifying:} \\ V(t)=2t^2-9t-18 \end{gathered}

The particle will be at rest when the velocity is 0, thus we solve the equation:

2t^2-9t-18=0

The coefficients of this equation are: a = 2, b = -9, c = -18

Solve by using the formula:

t=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}

Substituting:

\begin{gathered} t=\frac{9\pm\sqrt[]{81-4(2)(-18)}}{2(2)} \\ t=\frac{9\pm\sqrt[]{81+144}}{4} \\ t=\frac{9\pm\sqrt[]{225}}{4} \\ t=\frac{9\pm15}{4} \end{gathered}

We have two possible answers:

\begin{gathered} t=\frac{9+15}{4}=6 \\ t=\frac{9-15}{4}=-\frac{3}{2} \end{gathered}

We only accept the positive answer because the time cannot be negative.

Now calculate the position for t = 6:

undefined

6 0
1 year ago
Please answer these three or at least two of them thank you<br> 1. =<br> 2. =<br> 3. =
Andrew [12]

Answer:

1 conductors

2 insulators

3.Modern turnout jackets and pants are made of fire resistant fabrics (mainly Aramids such as Nomex and Kevlar) or polybenzimidazole (PBI).

5 0
3 years ago
What is the sum of 9+10 (;
garri49 [273]

Answer:

19 or 21.

Step-by-step explanation:

I swear.

5 + 5 = 10

10 + 5 = 15

15 + 4 = 19

________________

9 + 9 = 18

18 + 10 = 28

28 - 5 = 23

There are two nines so

23 - 2 = 21

6 0
3 years ago
Other questions:
  • Someone help me, please
    13·1 answer
  • The cost to repair a car after a collision was $2,700. The automobile insurance policy paid the entire bill except for a $675 de
    11·1 answer
  • SHOW ALL WORK STEP BY STEP !!
    13·1 answer
  • Graph the system by using technology. Which is the x-coordinate of the solution?
    6·1 answer
  • Given f(x)=7x-9 and g(x) =x^2, choose the expression for (f*g)(x)
    11·1 answer
  • What is the least common multiple of 6 and 9?<br><br><br> 3<br><br> 18<br><br> 36<br><br> 54
    6·1 answer
  • MacKenzie surveys 80 of her classmates and finds that 65% of them like sports. She also finds that 75% of her 64 relatives like
    7·2 answers
  • Need help will mark brainliest...
    7·1 answer
  • why is sin(90 degrees) = 1. I know that that is the answer you get when you plug it into a calculator. I need an explanation as
    13·1 answer
  • Using the function f(x) = 32 * (3/4)z, evaluate the following mentally.<br> f(3) =
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!