3 years ago

2x + y = -4 2x + 3y = 4

Mathematics

1 answer:

kirill115 [55]3 years ago

7 0

Answer: x=4 ; y= -4

Step-by-step explanation:

2x + y = -4 .(-3)

2x + 3y = 4

-6x-3y=12

2x + 3y = 4

4x=16

x= 16

x=4

2x + 3y = 4

2.4+3y=4

8+3y=4

3y= -8+4

y= -4

You might be interested in

RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR

Scorpion4ik [409]

Answer:

Square

Got it correct on my test just now

4 0

3 years ago

H = (0.24)I^2Rt, solve for R.

boyakko [2]

Answer:

Step-by-step explanation:

3 0

3 years ago

Select all of the following functions that are quadratic.

wlad13 [49]

1st,2nd,3rd,4th that is your answer

7 0

2 years ago

2. Find the area and circumference of the circle to the right. 16.6 m

adoni [48]

Answer:

AREA:

$A=216.42m^2$

CIRCUMFERENCE:

$C=52.15m$

Step-by-step explanation:

The formula that is used to calculate the area of a circle is:

$A=\pi r^2$

Where "r" is the radius of the circle.

The formula for calculate the circumference of a circle is:

$C=2\pi r$

Where "r" is the radius of the circle.

Then, you need to find the radius. This is:

$r=\frac{16.6m}{2}=8.3m$

Substituting the radius, you get that the area and the circumference are:

AREA:

$A=\pi (8.3m)^2=216.42m^2$

CIRCUMFERENCE:

$C=2\pi (8.3m)=52.15m$

7 0

3 years ago

Read 2 more answers

Find / or Find1/8of1/9

Archy [21]

Answer:

1/72

Step-by-step explanation:

1/8 of 1/9

=1/8x1/9

=1/72

6 0

3 years ago

Read 2 more answers