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katrin2010 [14]
3 years ago
6

What is an equation of the line that passes through the points (3, 0) and (6, -1)

Mathematics
2 answers:
prohojiy [21]3 years ago
4 0

Answer:

<u>(Note: This is assuming that the answer can be in any format.)</u>

<u></u>y - 0 = -\frac{1}{3} (x - 3)<u></u>

Step-by-step explanation:

When given at least two points, you can find write an equation using the point-slope formula: y - y_1 = m (x - x_1). The x_1 and y_1 are the x and y values from one point that need to be substituted in to make an equation, as well as the m which represents the slope.

Find the slope by using the slope formula \frac{y_2 - y_1}{x_2 - x_1} and the two points given:

\frac{-1-0}{6-3}

\frac{-1}{3}

So, the slope is -\frac{1}{3}.

Next, choose a point (in this case, I chose (3,0)) and substitute its x and y values into x_1 and y_1 respectively, and also substitute  -\frac{1}{3} for m. This forms an equation of a line in point-slope formula:

y - 0 = -\frac{1}{3} (x - 3)

Shalnov [3]3 years ago
3 0
Y= -1/3x + 1

Please mark BRAINLEST!!

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Given that (ax^2 + bx + 3) (x+d) = x^3 + 6x^2 + 11x + 12, it asks a + 2b - d = ?
astraxan [27]

Answer:

a+2b-d=1, 3, 5, 7

Step-by-step explanation:

(ax^2+bx+3)(x+d)

ax^3+bx^2+3x+adx^2+bdx+3d

ax^3+bx^2+adx^2+3x+bdx+3d=x^3+6x^2+11x+12

ax^3=x^3, a=1

bx^2+adx^2=6x^2

x^2(b+ad)=6x^2

b+ad=6

b+(1)d=6

b+d=6

------------

3x+bdx=11x

x(3+bd)=11x

3+bd=11

-----------------

b=6-d

3+(6-d)d=11

3+6d-d^2=11

3-11+6d-d^2=0

-8+6d-d^2=0

d^2-6d+8=0

factor out,

(d-4)(d-2)=0

zero property,

d-4=0, d-2=0

d=0+4=4,

d=0+2=2

b=6-4=2,

b=6-2=4.

------------------

a+2b-d=1+2(2)-2=1+4-2=5-2=3

-------------------

a+2(4)-4=1+8-4=9-4=5

-----------------------

a+2(2)-4=1+4-4=5-4=1

-----------------------

a+2(4)-2=1+8-2=9-2=7

5 0
3 years ago
Read 2 more answers
A butterfly starts at 20 m and changes -16m ?
miskamm [114]

Answer:

it is at 4 meters

Step-by-step explanation:

20 - 16 = 4

Hope this helps!

Maybe brainliest?

4 0
3 years ago
For the equation, complete the solution. 7x + y = −18
Alex777 [14]

Answer:

x= - 18/7 - 1/7y, y

or if you are solving for y= -18-7x, x

( SEE OTHER IMAGE)

Step-by-step explanation:

See image below:)

8 0
3 years ago
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Which equation can be used to find the volume of a sphere that has a radius of 9 miles?
Licemer1 [7]
V=(4/3)pir^3

r=9
V=(4/3)pi9^3
V=12pi243
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6 0
3 years ago
Given that sin theta = 1/4, 0
GaryK [48]
Answer: cos(Θ) = (√15) / 4

Explanation:

The question states:

1) sin(Θ) = 1/4

2) 0 < Θ < π / 2

3) find cos(Θ)

This is how you solve it.

1) Use the fundamental identity (in this part I use α instead of Θ, just for facility of wirting the symbols, but they mean the same for the case).

(cos \alpha )^2 + (sin \alpha )^2 =1

2) From which you can find:

(cos \alpha )^2 = 1 - (sin \alpha )^2

3) Replace sin(α) with 1/4

=> (cos \alpha )^2 = 1 - (1/4)^2 = 1 - 1/16 = 15/16

=> cos \alpha =+/- \sqrt{15/16} = +/- (\sqrt{15} )/4

4) Given that the angle is in the first quadrant, you know that cosine is positive and the final answer is:

cos(Θ) = \sqrt{15} /4.

And that is the answer.
6 0
3 years ago
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