All categories

3 years ago

Is (4,2) a solution of the system y=x-2 and y=3x+4

Mathematics

2 answers:

Fed [463]3 years ago

5 0

Answer:

The answer to your question is No, it is not a solution

Step-by-step explanation:

Data

Point (4, 2)

y = x - 2 Equation l

y = 3x + 4 Equation ll

-Solve the system by equality

x - 2 = 3x + 4

-Solve for x

x - 3x = 4 + 2

- 2x = 6

-Result

x = 6/-2

x = -3

-Find y

y = -3 - 2

-Result

y = -5

The solution to this system is (-3, -5), (4,2) is not a solution.

babunello [35]3 years ago

4 0

Answer:

False

Step-by-step explanation:

y=x-2 y=3x+4

Substitute the point into both equations and see if it is true

2=4-2

2=2 true

and

2=3*4+4

2 = 12+4

2 =16

False

It is not a solution

You might be interested in

157 29 Marks

AlekseyPX

Complete question :

Put these fraction in order of size smallest to largest : 7/10, 2/3, 4/5, 11/15

Answer:

2/3, 7/10, 11/ 15, 4 /5

Step-by-step explanation:

In other to make solving the question easier, we can convert the fractions to decimal in other to make comparison easier :

7/10 = 0.7

2/3 = 0.667

4 /5 = 0.8

11 /15 = 0.733

Using the placement or how the numbers will appear to the right of a number line ;

0.667, 0.7, 0.733, 0.8

Thus we have :

2/3, 7/10, 11/ 15, 4 /5

3 0

3 years ago

Tri-Star Industries employs electrical, plumbing, and air conditioning technicians. Their home office is made up of three square

Molodets [167]

Answer:

6084 $\text{ft}^2$ .

Step-by-step explanation:

Please find the attachment.

We have been given that the home-office of Tri-star industries is made up of three square buildings, one for each department, with a triangular atrium in the middle. The area of the Plumbing building is 5,184 $\text{ft}^2$ and the area of the A/C building is 900 $\text{ft}^2$ .

We know that area of square is square of its side length. Since all building are squares, so to find the area of electrical building, we will use Pythagoras theorem.

$a^2+b^2=c^2$