All categories

3 years ago

Solve for x 21x+6help please ?

2 answers:

8 0

If it equats to 0, then you send the six to where it equats as zro for it to bevome -6. It looks like this.
21x=-6.
Then send the 21 multiplied with the x to the other side. This time, it will act as division. This will look like this.
x=-6/21.
This simply means that x=-6/21.
Hope this helps.

OLEGan [10]3 years ago

4 0

subtract 6 from the 21x+6. Then divide by 21. The answer is going to be -6/21

You might be interested in

The measure of two supplementary angels, s and t, are the ratio of 7:3. Find the value of s

Andrews [41]

7x+3x=180

10x=180

/10 /10

x=18

7x=s

7(18)=126

3x=t

3(18)=t

54=t

6 0

3 years ago

Read 2 more answers

A straight line passes through points (-1, 5) and (2, -4). What is the law of the function represented by this line?

bagirrra123 [75]

Answer:

y = -3x+2

Step-by-step explanation:

See attachment.

Find the slope:

Rise = (-4 - 5) = -9

Run = (2 - (-1)) = 3

Slope(Rise/Run) = -3

Find the y-intercept:

y = mx + b

y = -3x + b

5 = -3*(-1)+b [Use point (-1,5)

b = 2

====

y = -3x + 2

7 0

3 years ago

What is the equation of the line that passes through the points (0,4) and (3,-2)?

Nadusha1986 [10]

***NOTE: Please check that you wrote the numbers in the question/answer choices correctly. The answer to this problem doesn't match the answer choice. Thank you!

Remember that the slope intercept formula is:

y = mx + b

m is the slope

b is the y-intercept

First let's find the slope (m)

The formula to find slope using two points is

$\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

In this case...

$y_{2} =-2\\y_{1} =4\\x_{2} =3\\x_{1} =0$

^^^Plug these numbers into the formula for slope...

$\frac{-2-4}{3 - (0)}$

$\frac{-6}{3}$

-2

^^^This is your slope

Here is what we have so far for the slope intercept formula:

y = -2x + b

Now we must find b

To do that you must plug in a point the line goes through in the x and y of the equation, then solve for b

For this explanation we will use the point (0,4) although you could also do it with point (3, -2) and you should get the same answer

4 = -2(0) + b

4 = 0 + b

4 = b

NOTE: For this particular problem you wouldn't technically need to go through the steps above to find b. In this case one of the points given, (0, 4) is already the y-intercept of the line (b)

y = -2x + 4

Hope this helped!

~Just a girl in love with Shawn Mendes

5 0

3 years ago

Nevermind anyone know this answer???

Semenov [28]

Answer:

x = 6

Step-by-step explanation:

for SPECIAL RIGHT TRIANGLES specifically a 30°-60°-90° triangle.

The longest side is the hypotenuse. The longest side is twice the shortest side. Or the other way around, the shortest side is half the longest side.

Here the longest side (hypotenuse) is 12, so the shortest side is 6.

Also, since you seem to be trying to get this subject.

The long leg is the short leg× sqroot3.

OR the short leg is the long leg ÷ sqroot3. If you end up with a sqroot on the bottom of a fraction, you can't leave it like that. Times top and bottom by sqroot3/sqroot3 to fix it.

4 0

2 years ago

What is the answer to this math question please help thank you very much

NeX [460]

All the angles in a triangle= 180 degrees.

2x+5x+3x= 180

Combine like terms.

10x= 180

Divide by 10 into both sides.

x= 18

Now, plug that into <L.

3(18)= <L

<L= 54 degrees

I hope this helps!
~kaikers

5 0

3 years ago