MATHEMATICS MIDDLE SCHOOL

Someone please solve & explain

Answers

Answer 1

Answer:

Answer:

y+20 = 9(x+2)

Step-by-step explanation:

The slope that passes through the points is

m = (y2-y1)/(x2-x1)

= (79- -20)/ (9--2)

= (79+20)/(9+2)

= 99/11

= 9

We can use point slope form to write an equation. It says to use the first point.

y-y1 = m(x-x1)

y--20 = 9(x--2)

y+20 = 9(x+2)

Related Questions

Can someone plz help meWhat is the surface area of the figure? A. 408 ft2 B. 458 ft2 C. 545 ft2 D. 720 ft2
Which of the following are equivalent ratios?15 to 20 6 to 8 8 to 12 9 to 12
Where was 5/6 of a pie. Joe ate 1/6 of the pie. How much of the whole pie was left?
A plumber has a copper pipe 0.9 meter long. He cuts the pipe into 4 equal pieces. Find the length of each piece of meters. Rounds your answer to the nearest tenth of a meter.
The widths of two similar rectangles are 25 ft. and 20 ft. What is the ratio of the perimeters?

The set of the consecutive odd numbers 1, 3, 5, 7, ... , N has a sum of 400. How many numbers are in the set?

Answers

Well, we could try adding up odd numbers, and look to see when we reach 400. But I'm hoping to find an easier way.

First of all ... I'm not sure this will help, but let's stop and notice it anyway ...
An odd number of odd numbers (like 1, 3, 5) add up to an odd number, but
an even number of odd numbers (like 1,3,5,7) add up to an even number.
So if the sum is going to be exactly 400, then there will have to be an even
number of items in the set.

Now, let's put down an even number of odd numbers to work with,and see
what we can notice about them:

   1, 3, 5, 7, 9, 11, 13, 15 .

Number of items in the set . . . 8
Sum of all the items in the set . . . 64

Hmmm. That's interesting. 64 happens to be the square of 8 .
Do you think that might be all there is to it ?

Let's check it out:

Even-numbered lists of odd numbers:

1, 3    Items = 2, Sum = 4
1, 3, 5, 7    Items = 4, Sum = 16
1, 3, 5, 7, 9, 11    Items = 6, Sum = 36
1, 3, 5, 7, 9, 11, 13, 15 . . Items = 8, Sum = 64 .

Amazing ! The sum is always the square of the number of items in the set !

For a sum of 400 ... which just happens to be the square of 20,
we just need the first 20 consecutive odd numbers.

I slogged through it on my calculator, and it's true.

I never knew this before. It seems to be something valuable
to keep in my tool-box (and cherish always).

Why it is not reasonable to say that 4.23 is less than 4.135

Answers

It is not reasonable to say that 4.23 is less than 4.135,
because 4.23 is more than 4.135.

Because if you think without the decimal points then see which one is greater.

hope this helps

You are assigned 32 math exercises for homework. You complete 87.5% of these before dinner. How many do you have left to do after dinner?

Answers

32(87.5)
28.000
32-28=
4
4 homeworks you still need to do.

Answer:

Step-by-step explanation:

sup

hey

good evenin

good afternoon

wat up brah

How to find the surface area of a trapizoid formula, maybe walkthrough if possible?

Answers

Trust me, it's really easy!
break apart the shape (In 3D, I assume.) there should be 6 breaks apart. The top, bottom, and four sides. After you find the area, (Base x Base x Height for the 4 sides, and Side x Side for the top and the bottom of the figure.) Then you add all of them up, and there's the surface area! If you need more help, message me, I'd be glad to help.

Yesterday, Annie walked 9/10 mile to her friends house. Together, they walked 1/3 mile to the library. Which is the best estimate for how far Annie walked yesterday?