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Brrunno [24]
3 years ago
9

What is the slope of -12x-3y=21

Mathematics
2 answers:
Tresset [83]3 years ago
5 0

Answer:

-4

Step-by-step explanation:

-12x-3y=21

We need to solve the equation for y to get it in slope intercept form

Add 12x to each side

-12x+12x-3y=12x+21

-3y = 12x+21

Divide each side by -3

-3y/-3 = 12x/-3 +21/-3

y = -4x -7

This is in slope intercept form (y = mx+b  where m is the slope and b is the y intercept)

-4 is the slope and -7 is the y intercept

podryga [215]3 years ago
4 0
-4
first you add 12x to both sides so it cancels out on the left
divide the whole equation by -3 to get y by itself and put the equation in y=mx+b form
y=-4x -7
-4 is the slope
You might be interested in
An open rectangular wooden box measures
Nitella [24]

Answer:

  • 1300 cm³

Step-by-step explanation:

Internal dimensions of the box will be smaller considering the thickness of the wood:

  • 21 - 1 = 20 cm
  • 11 - 1 = 10 cm
  • 7 - 0.5 = 6.5 cm  (open top)

<u>The volume is now:</u>

  • 20*10*6.5 = 1300 cm³
5 0
4 years ago
How do solve 4v-13-10v=12-24v+5
yaroslaw [1]
You get all the v's on one side by adding 24v to both sides
4v-13-10v = 12-24v +5
+24v +24v
And then you would get
4v-13-10v+24v = 12+5
Then combine like terms
18v-13=17
Then you would get v alone by adding 13 to both sides
18v-13= 17
+13 +13
That would give you
18v=30
Then divide both sides by 18 to get your final answer
18v = 30
/18 /18
Your final answer is...
V=1.66
7 0
3 years ago
Read 2 more answers
2x2-4? that is my question
Luden [163]
It’s 0,, use PEMDAS you welcome
8 0
3 years ago
Can someone explain if I am wrong?
snow_lady [41]

Answer:

Step-by-step explanation:

A. (b - 10)(b + 10) = 180

b^{2}-100 = 180

b^{2}= 280

b = \sqrt{280}

b = 2\sqrt{70}

Your A is correct.

B. 2\sqrt{70} - 10 = c

c = 6.733200531 = 6.73  Try rounding to 3 significant figures.

C. 2\sqrt{70} + 10 = d

d = 26.73320053 = 26.7

You are correct in all 3 answers. Perhaps you should try rounding to 3 significant figures for your c and d values.

I hope this helps!! ^-^

8 0
3 years ago
Read 2 more answers
I need answer! Thank you!
kirill [66]

Answer:

2/3

Step-by-step explanation:

1, 2,4, 6

so that’s 4 numbers out of 6 so 4/6, 2/3

5 0
3 years ago
Read 2 more answers
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