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Natasha_Volkova [10]
3 years ago
6

Can someone please help me with this?

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
8 0

Answer:

12

Step-by-step explanation:

idk just a guess

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Write an equation of the line that passes through the given point and is perpendicular to the given line.
topjm [15]

Answer:

y = - 3x - 22

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = \frac{1}{3} x + 1 ← is in slope- intercept form

with slope m = \frac{1}{3}

Given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{\frac{1}{3} } = - 3 , then

y = - 3x + c ← is the partial equation

To find c substitute (- 6, - 4) into the partial equation

- 4 = 18 + c ⇒ c = - 4 - 18 = - 22

y = - 3x - 22 ← equation of perpendicular line

6 0
3 years ago
Jorge needs to reflect a figure across the line y= -4 Which statements are correct regarding steps he could take to complete the
Serjik [45]

Answer:

see below. × signifies a wrong choice; → signifies a correct one

Step-by-step explanation:

× Jorge should graph in the vertical line with values of –4 for the line of reflection. (The line of reflection is horizontal.)

→ Jorge could count how far each pre-image point is from the line of reflection along the perpendicular from the point to the line of reflection.

× Jorge could count how far each vertex of the figure is from the y-axis and count the same distance on the other side. (He could do this pointless exercise, but it has no relation to the problem. The y-axis (x=0) is not the line of reflection.)

→ Jorge will not move any point that lies on the line of reflection. (All points on the line of reflection are reflected to themselves.)

→ Jorge could check his work by seeing if each segment joining a pre-image point with its image has the midpoint on the line of reflection. (This is what is meant by "line of reflection.")

× Jorge could check his work by making sure that the image has the same orientation as the original. (A reflected image as an orientation opposite that of the original, a fact you see every time you look in a mirror.)

8 0
3 years ago
Read 2 more answers
You dive 21 feet from the surface of a lake in 7 seconds. What is the mean change in your position in feet per second?
Alexxandr [17]

Answer:

Unit rate: 21feet / 7seconds = 3 feet per second.

3 feet per second * 5 seconds = 15 feet

21 feet + 15 feet =36 feet

You are 36 feet from the surface.  

Step-by-step explanation:

5 0
3 years ago
Lana needs 38 inches of rope She cuts a piece of rope that measures 36 inches. What is her percent error to the nearest whole pe
attashe74 [19]

Answer:

About 5%

Step-by-step explanation:

7 0
3 years ago
HELP PRECALC NEED IN PROOF FORM
Vinil7 [7]

Hello, please consider the following.

We know the following, right ?

(\forall a, b \in \mathbb{R}) \left( sin(a+b)=sin(a)sin(b)+cos(a)cos(b) \right)

So, here, it gives.

Asin(\omega t+\phi)=Asin(\phi){\sf \bf sin(\omega t)}+Acos(\phi){\sf \bf cos(\omega t)}\\\\=c_2{\sf \bf sin(\omega t)}+c_1{\sf \bf cos(\omega t)}\\\\\text{ *** where }c_2=Asin(\phi) \text{ and } c_1=Acos(\phi) \text{ ***}

Do not hesitate if you need further explanation.

5 0
4 years ago
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