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3 years ago

Ew Mathematics i am just filling up the space

Mathematics

1 answer:

kykrilka [37]3 years ago

7 0

Answer:

For starters for the angles to be complementary they have to be 90 degrees

and angle ECD is a 52 degree angle. Next, you would need to subtract 52 degrees from 90 degrees and get an answer of 38 degrees. Making DCF a 38 degree angle.

Step-by-step explanation:

You might be interested in

3.1(g-7)-1=5.2 what is G

dimulka [17.4K]

Answer:

g=9

Step-by-step explanation:

Add 1 to both sides of the equation t get 3.1(g-7)=6.2

Then divide both sides by 3.1 to get g-7=2

Then add 7 to both sides to get g=9

4 0

3 years ago

Find the distance between (-6,4) and (-2,1)

zhannawk [14.2K]

Answer:

$d=2.65$

Step-by-step explanation:

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

Simply plug in your 2 coordinates into the formula to find distance <em>d</em>:

$d=\sqrt{(-2-(-6))^2-(1-4)^2}$

$d=\sqrt{(-2+6))^2-(-3)^2}$

$d=\sqrt{(4)^2-9}$

$d=\sqrt{16-9}$

$d=\sqrt{7}$

$d=2.65$

4 0

3 years ago

I need help if you do it you can have brainest

Ne4ueva [31]

9514 1404 393

Answer:

see below

Step-by-step explanation:

Starting from the point-slope equation ...

y -y1 = m(x -x1)

Solving for y gives ...

y = mx +(y1 -m·x1)

So, the slope-intercept form equation is fairly easily found:

y = mx +b . . . . where m = m, and b = y1-m·x1

This is the equation we have used for 'b' in the attached spreadsheet.

Of course, the formula for slope is ...

m = (y2 -y1)/(x2 -x1)

This is the equation we have used for 'm' in the attached spreadsheet. For all problems, we have used the first point. (It doesn't matter which point you use if there are two of them.)

The second attachment is the Google Sheets spreadsheet saved in ODS format. Most spreadsheet programs should be able to open that so you can see the formulas, if you're interested. (The gray values of m are computed using the two points. The unshaded values of m are entered by hand.)

_____

I'll write a couple of equations in each group so you can see how the spreadsheet numbers relate:

y = mx +b

1. y = 2x -7

3. y = 2/3x +4

8. y = 1/3x -5

9. y = -5/2x +4