All categories

2 years ago

A rotation a figure around a fixed point called the center of ____.

Mathematics

1 answer:

Irina-Kira [14]2 years ago

4 0

Answer:

A rotation ____on the coordinate plane________ a figure around a fixed point called the center of

___rotation_____________.

You might be interested in

What is the quadratic formula song?

tiny-mole [99]

Step-by-step explanation:

pop goes the weasel is quadratic formula song

7 0

2 years ago

The perimeter of two triangles are 15 and 25. The area of the smaller triangle is 36. If the triangles are similar, what is the

DanielleElmas [232]

Answer:

Step-by-step explanation:

Set up a ratio problem

15/25 = 36/x

15x = 900

x = 60

6 0

2 years ago

Which equations represent the line that is parallel to 3x − 4y = 7 and passes through the point (−4, −2)? Select two options.

Elanso [62]

Answer:

2 and 5

Step-by-step explanation:

The slope-intercept form of a line is y=mx-b where m is slope and b is y-intercept.

The point-slope form of a line is y-y1=m(x-x1) where m is the slope and (x1,y1) is a point on the line.

The standard form a line is ax+by=c.

So anyways parallel lines have the same slope.

So if we are looking for a line parallel to 3x-4y=7 then we need to know the slope of this line so we can find the slope of our parallel line.

3x-4y=7

Goal: Put into slope-intercept form

3x-4y=7

Subtract 3x on both sides:

-4y=-3x+7

Divide both sides by -4:

$y=\frac{-3}{-4}x+\frac{7}{-4}$

Simplify:

$y=\frac{3}{4}x+\frac{-7}{4}$

So the slope of this line is 3/4. So our line that is parallel to this one will have this same slope.

So we know our line should be in the form of $y=\frac{3}{4}x+b$ .

To find b we will use the point that is suppose to be on our new line here which is (x,y)=(-4,-2).

So plugging this in to solve for b now:

$-2=\frac{3}{4}(-4)+b$

$-2=-3+b$

$3-2=b$

$b=1$

so the equation of our line in slope-intercept form is $y=\frac{3}{4}x+1$

So that isn't option 1 because the slope is different. That was the only option that was in slope-intercept form.

The standard form of a line is ax+by=c and we have 2 options that look like that.

So let's rearrange the line that we just found into that form.

$y=\frac{3}{4}x+1$

Clear the fractions because we only want integer coefficients by multiplying both sides by 4.

This gives us:

$4y=3x+4$

Subtract 3x on both sides:

$-3x+4y=4$

I don't see this option either.

Multiply both sides by -1:

$3x-4y=-4$

I do see this as a option. So far the only option that works is 2.

Let's look at point slope form now.

We had the point that our line went through was (x1,y1)=(-4,-2) and the slope,m, was 3/4 (we found this earlier).

y-y1=m(x-x1)

Plug in like so:

y-(-2)=3/4(x-(-4))

y+2=3/4 (x+4)

So option 5 looks good too.

7 0

3 years ago

Read 2 more answers

Ben's date of birth is a prime number between 15 and 25. This number has 57 as a multiple.What date is Ben's birthday?Write the

Serggg [28]

Hope this answer helps you! Please make it the brainiest answer if it does! :)

7 0

3 years ago

Pls help with this question

katrin2010 [14]

Answer:

We aren't going to do all your homework for you. That's why no one is answering. If you have one specific question, I can help

Step-by-step explanation:

. No one is going to do this whole assignment/homework.

3 0

3 years ago

A rotation ____________ a figure around a fixed point called the center of ________________.

A rotation a figure around a fixed point called the center of ____.