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3 years ago

3x − 6y = –6 x = 2 solve using substitution.

Mathematics

1 answer:

nordsb [41]3 years ago

3 0

Answer:

y=2

Step-by-step explanation:

First, you substitute x with 2.

3(2)-6y=(-6)

Then, you multiply:

6-6y=(-6)

Next, you subtract 6 from -6. So, the first 6 gets crossed out because of inverse of operation.

-6y=-12

Finally, you divide -6 to both sides of the equation to get y=2

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you are preparing breakfast platters for teacher appreciation week you are serving an equal number of muffins and bagels the muf

Maurinko [17]

Answer:

Step-by-step explanation:

The LCD of 6 and 4 is 12.

6: 6, 12

4: 4, 8, 12

6 0

3 years ago

If A(3,4) and B(10,4) are the end points of a diameter of circle "O", what is the area of the circle O

ikadub [295]

Answer:

$\large\boxed{\dfrac{49\pi}{4}}$

Step-by-step explanation:

The formula of an area of a circle:

$A=\pi r^2$

r - radius

We have the endpoints of a diameter of a circle.

The formula of a distance between two points:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Substitute the coordinates of the given points A(3, 4) and B(10, 4):

$d=\sqrt{(10-3)^2+(4-4)^2}=\sqrt{7^2+0^2}=\sqrt{7^2}=7$

Therefore we have the length of the diameter: d = 7

We know: d = 2r. Therefore

$r=\dfrac{7}{2}$

Substitute to the formula of an area:

$A=\pi\left(\dfrac{7}{2}\right)^2=\dfrac{49\pi}{4}$

There is no such answer in the answers to choose.

Apparently you have some error in the coordinates of the endpoints.

8 0

3 years ago

I need help now I’m stuck!

trapecia [35]

Whats the question?

6 0

3 years ago

Read 2 more answers

What is the simplified form of the following expression? (n5)(n2)

Hatshy [7]

In exponent multiplication, When the bases are the same you ADD the power so it is n^7

5 0

3 years ago

Help asap please !! Thank you soooo much t who ever helps.

PSYCHO15rus [73]

A) 2 2/9

The answer would of course be positive because two negatives make a positive.

It would only be 6 4/9 if you added when here it states the obvious for you to subtract.

Hope this helped PLEASE MARK BRAINLIEST!!

6 0

3 years ago