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250 degrees out of 360 degrees

250/360  x  660 = ......... people

Add 2^nd and 3rd

7x + 9z = 11

Multiply 1st by 2  and add to 2nd

10x +5z=0          mutiply red by -10/7 and add to green    

-10/7 (9z)+5z = -10/7 (11)    solve for z

z = 2

Plug z value into 2nd equation      and     3rd equation

2x - 2y = 4                                                 5x -2y = -11         add these two equations

7x = - 7    

x = - 1

Now sub in the values of z and x into any of the equations to compute z

2(- 1) + 2y +3(2) = 10

y = 3

v = 42

w =20

x =87

y =31 degrees.

-3y < -18x-21

y > 6x+7          because there is no = sign,  the graph  does not include the line ....

                            y >   means above the line

                      so the top left choice

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Can't seem to insert a newline inside the <pre> </pre>  tags.

And now I can't even edit my first response.

Anyway, here's a screenshot of my answer taken from the preview:

Solve by any method:

4x-y+z=-5

2x+2y+3z=10

5x-2y+6z=1

*edit* formatting got messed up (even though it looked fine in preview...)

THAT's dipping pretty deep, Melody !      Virtually all answers using pi are then approximations and not 'equal to' unless expressed in terms of pi....a large majority of answers on this forum are rounded and thus approximations despite the = sign   etc.....

20 sin 60 = JK = 20 sqrt3/2

(20 sqrt 3 /2)^2   + JL^2 = 20^2

JL = 10

1/2 (10)(20 sqrt(3)/2)  = area in units²

d = 502 * 2^2016.

(k,n) = (2,4).

yes

no?

100 + .6x  =   30 + .8x     solve for 'x'     the number of miles to make them equal

A   multiply the y coordinates by -1     the x's remain the same

B   multiply the x coordinates from answer A  by -1

C   what do YOU think?

20 c 2 = 190 ways to select 2 numbers

1 16

2 15

3 14

4 13

5 12

6 11

7 10

8 9                  8 ways to add to 17     8 out of 190 = 8 /190 = 4/95

Find diameter of the cylinder

  via pythag theorem

     d² + 21² =   29²

      ^{d = 20}

d=20    then r = 10      now you can sub into the given equation   

            volume = pi r²  h     cm³

a = k/b²

 9 = k / 4²

k = 144

a = 144 / 3²  

a = 16

matthew is a bot

Multiply it out....   bottom choice

it would be 7.5

1. You can take f(z) = z + 4 - 6i.

2. The real part of z is 1/4.

Are there any steps?

It is actually 66, but thank you!