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
Alborosie
3 years ago
5

Solve the simultaneous equations j-k= 2 and j2 + 2k=8. Give the answer in three decimal places.

Mathematics
2 answers:
vagabundo [1.1K]3 years ago
7 0

Answer:

j=2.606, j=-4.606 and k=0.606, k=-6.606

Step-by-step explanation:

First step is to merge the formulas so that you are left with one combined equation with only one variable. Let's go for j, so we won't have to fiddle with the quadratic term:

First we convert j-k=2 to k=j-2, then we plug in this value for k in the other equation:

j² + 2(j-2) = 8

j² +2j -4 = 8

j² + 2j -12 = 0

This we can solve using the quadratic formula:

j = (-2 ± √(2²-4·1·-12) ) / 2

= (-2 ± √52)/2

= -1 ± √13

So j ≈ 2.6056 or j≈-4.6056

k can be found by subtracting 2.

Vika [28.1K]3 years ago
4 0

Answer:

Step-by-step explanation:

hello :

here is an solution :

You might be interested in
The sum of four consecutive numbers is 34. Which is the largest of these numbers?
Zolol [24]

Answer:

ITS 10 TRUST ME

Step-by-step explanation:

4 0
2 years ago
In order to solve the following equation John add -x to both sides of the equation.
Goshia [24]
3x = x + 17
Add -x to both sides
2x = 17

On the left side, you have 2x.
Answer choice C is your answer.

Have an awesome day! :)

- Your friendly Helper-in-Training
7 0
3 years ago
25 points:)<br><br> question 2-3
Furkat [3]

Answer:

2) r=73

Step-by-step explanation:

all 4 sided shapes add up to 360.

so 90+90=180

180+107=287

360-287=73

so r=73

4 0
3 years ago
A=2x+6xz <br> a=2x+6xz<br> for x
Dennis_Churaev [7]
So I guess we are solving for x here :)
So here is my work...
a=2x+6xz
Basically I think it would be
a=6xz+2x

WAIT WAIT NO I'M WRONG FORGIVE ME!

It's  x=a/2(1+3z)
5 0
3 years ago
Read 2 more answers
THIS IS A K12 QUESTION WILL GIVE BRAINLIEST NEED ANSWER NOW!!!! For which distributions is the median the best measure of the ce
vampirchik [111]

Answer:

B

Step-by-step explanation:

A, C, and D can be a possibility but they are not exactly at the middle. B is the only one that shows a slightly triangular shape, which you can see the middle that shows the best measure of the center.

Hope this helped!

5 0
3 years ago
Read 2 more answers
Other questions:
  • A triangle has a base of 52/3 in. and a height of 3 in. what is the area of the triangle
    14·1 answer
  • An exterior angle measure of a regular polygon is given. Find the number of its sides and the measure of each interior angle. 60
    10·2 answers
  • Does 76.8 or 76.9 round up to 77?
    14·1 answer
  • F(x) at its minimum
    8·1 answer
  • Notebooks are on sale 10 notebooks for 3.00$ Mrs. Day wants to purchase some with her 24.00$. How many notebooks can she purchas
    9·2 answers
  • Please help me with this problem !! i keep trying but i keep getting the wrong answer
    11·1 answer
  • Using traditional methods, it takes 9696 hours to receive a basic flying license. A new license training method using Computer A
    15·1 answer
  • Please help meeeeeee
    15·2 answers
  • Calculator
    15·2 answers
  • Help me pleaseeeeeeeeee
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!