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4 years ago

What is the answer 7-2(3x+2)

Mathematics

2 answers:

melisa1 [442]4 years ago

8 0

Step-by-step explanation:

Do distributive property

7 - 6x - 4

notka56 [123]4 years ago

4 0

To begin, distribute the -2 to both the 3x and the 2, which would result in -6x-4. When added back into the original equation, you have 7-6x-4. 7-4 is 3, so the final answer is -6x+3.

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Write an equation in slope-intercept form for the line that passes through (5,0) and is perpendicular to the line described by y

natta225 [31]

For this case we have to;

We have that an equation in slope-intercept form is given by:

$y = mx + b$

Where:

m is the slope

b is the cut point with the y axis

Also, by definition, two lines are perpendicular when the product of their slopes is -1. That is: $m_ {1} * m_ {2} = - 1$

We have the line as data: $y_ {1} = \frac {-5} {2} x + 6$

Then $m_ {1} = \frac {-5} {2}$

We found $m_ {2}$ :

$m_ {1} * m_ {2} = - 1$

$\frac {-5} {2} * m_ {2} = - 1$

$m_ {2} = \frac {-1} {(\frac {-5} {2})}$

$m_ {2} = \frac {(2) (- 1)} {(- 5) (1)}$

$m_ {2} = \frac {2} {5}$

Thus, $y_ {2} = \frac {2} {5} x_ {2} + b_ {2}$

We must find $b_ {2}$ :

We know that $y_ {2}$ passes through the point $(x_ {2}, y_ {2}) = (5,0)$

We substitute the point in the equation of $y_ {2}$ :

$0 = \frac {2} {5} (5) + b_ {2}\\0 = 2 + b_ {2}\\b_ {2} = - 2$

Thus, $y_ {2} = \frac {2} {5} x_ {2} -2$

Then the equation in slope-intercept for the line that passes through (5,0) and is perpendicular to the line described by $y_ {1} = \frac {-5} {2} x_{1} + 6$ is: $y_ {2} = \frac {2} {5} x_ {2} -2$

Answer:

$y_ {2} = \frac {2} {5} x_ {2} -2$

7 0

3 years ago

Please helpppppppppppppp

TiliK225 [7]

I think the it would be some like y-8

8 0

3 years ago

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9. A 3D printer uses one spool of filament to produce 20 congruent solids. Suppose you want to produce similar solids that are 1

Evgesh-ka [11]

Answer:

15 figures

Step-by-step explanation:

To know with this, and knowing that each dimension is 10% longer, let's do a simple example assuming some random values.

Let's suppose that you have cylinder with a radius of 3 cm and height of 5 cm. The volume of this cylinder is:

V = π*(3)^2*5 = 45π cm^3

Now, if we raise the dimensions by 10%, the radius and height will be 3.3 and 5.5 respectively so, the new volume (V2) will be:

V2 = π*(3.3)^2*5.5 = 59.9π cm^3

So the ratio of both volumes is:

59.9π/45π = 1.331

This means that each new solid would have 1.331 times the volume of the original solid. Therefore, we can stablish a relation between the original figures and the new ones calling "x" the number of new figures so:

20 = 1.331x

solving for x:

x = 20/1.331

x = 15.03

You can round this to 15.

8 0

3 years ago

*<br> E<br> Which angle is an acute angle?

vodomira [7]

Answer:

angle COD is right answer

8 0

3 years ago

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Point H is the midpoint of FG. What is the value of y?

Delicious77 [7]

The value of y is 17/5.

<h3>What is Midpoint?</h3>

A midpoint is defined as in the middle of the line connecting two points a position known as a midpoint. A location in the middle of a line connecting the two points that are equally far from both points is the midpoint.

Let two points A (x₁, y₁) and B (x₂, y₂), the midpoint between A and B is given by,

M(x, y) = (x₁ + x₂)/2, (y₁ + y₂)/2

Given that H is the midpoint of FG

G(4x, 6y + 6), H(4, 15) and F(2y+2, 2x+4)

⇒ (4x+2y+2)/2 = 4 and (6y+6+2x+4)/2 = 15

⇒ (4x+2y+2) = 8 and (2x+6y+10) = 30

⇒ 4x+2y = 6 and 2x+6y = 20

⇒ 2x+y = 3 and x+3y = 10

⇒ x = 10 - 3y

Substitute the value of x into 2x+y = 3

⇒ 2(10 - 3y) +y = 3

⇒ 20 - 6y +y = 3

⇒ 5y = 17

⇒ y = 17/5

Learn more about the midpoint here :

brainly.com/question/5127660

#SPJ2

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1 year ago

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What is the answer 7-2(3x+2)​

What is the answer 7-2(3x+2)