All categories

4 years ago

What is 3x+3y=-9 in slope intercept form

Mathematics

1 answer:

lukranit [14]4 years ago

8 0

Answer:

y = -x -3

Step-by-step explanation:

The slope intercept form is

y = mx+b where m is the slope and b is the y intercept

3x+3y = -9

Subtract 3x from each side

3x-3x+3y = -3x-9

3y = -3x-9

Divide each side by 3

3y/3 = -3x/3 -9/3

y = -x -3

You might be interested in

F the price of a pair of shoes is $35.00 before tax, and tax is 20%, what will the final price of the pair of shoes be?

azamat

Answer:

$42

Step-by-step explanation:

35·0.20=7

tax is $7

35+7=42

the final price is $42

5 0

3 years ago

Write each of the following as a function of theta.<br> 1.) sin(pi/4 - theta) 2.) tan(theta+30°)

Paladinen [302]

Step-by-step explanation:

Let x represent theta.

$\sin( \frac{\pi}{4} - x )$

Using the angle addition trig formula,

$\sin(x - y) = \sin(x) \cos(y) - \cos(x) \sin(y)$

$\sin( \frac{\pi}{4} ) \cos(x) - \cos( \frac{\pi}{4} ) \sin(x)$

$( \frac{ \sqrt{2} }{2}) \cos(x) - (\frac{ \sqrt{2} }{2} )\sin(x)$

Multiply one side at a time

Replace theta with x , the answer is

$\frac{ \sqrt{2} \cos(x) }{2} - \frac{ \sin(x) \sqrt{2} }{2}$

2. Convert 30 degrees into radian

$\frac{30}{1} \times \frac{\pi}{180} = \frac{\pi}{6}$

Using tangent formula,

$\tan(x + y) = \frac{ \tan(x) + \tan(y) }{1 - \tan(x) \tan(y) }$

$\frac{ \tan(x) + \tan( \frac{\pi}{6} ) }{1 - \tan(x) \tan( \frac{\pi}{6} ) }$

Tan if pi/6 is sqr root of 3/3

$\frac{ \tan(x) + ( \frac{ \sqrt{3} }{3} ) }{1 - \tan(x) (\frac{ \sqrt{3} }{3} ) }$

Since my phone about to die if you later simplify that,

you'll get

$\frac{(3 \tan(x) + \sqrt{3} )(3 + \sqrt{3} \tan(x) }{3(3 - \tan {}^{2} (x) }$

Replace theta with X.

4 0

3 years ago

To complete this assignment, you must choose a listening selection from Section 1: Basic Musical Concepts (any of the classes fr

bija089 [108]

Answer:

Please see the attached file for the complete answer.

Step-by-step explanation:

Download pdf

7 0

4 years ago

Constant rate of change help!

Nadusha1986 [10]

All I know is the first one is -0.8 ft/min

6 0

3 years ago

Simplify (-5) + (-4) +(7)

MAXImum [283]

Answer:

Lol, isn't that just -2?

Step-by-step explanation:

I think you can just add those up.

7 0

3 years ago

Read 2 more answers