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3 years ago

Need help doing this

Mathematics

1 answer:

Natali [406]3 years ago

8 0

Answer:

A. -2

B. -10

Step-by-step explanation:

The slope of a perpendicular line will be the negative reciprocal of the slope of the given line:

-1/(1/2) = -2 . . . . slope of the perpendicular line

The y-intercept will let the given point satisfy the equation ...

y = -2x +b

2 = -2(-6) +b

-10 = b . . . . . . . subtract 12. This is the y-intercept.

_____

The graph shows the two lines and the points they go through.

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Makovka662 [10]

Answer:

Step-by-step explanation:

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7 0

2 years ago

Can someone help me with number five ???

exis [7]

Hey there! This is gonna actually be surprisingly simple even though it looks confusing!

Since the scale is perfectly balanced (it's completely flat because the weights are equal) you can use an = sign.

There are 3 cubes which weigh 9 ounces so 3 times 9 is 27 so on the left side you can put down a 27. Then there are 7 circles so so 7x can represent this. So that belongs on the left side as well SO for the left sides we can write this
27 + 7x = _______

Now for the right side. There are 5 cubes so 5 times 9 ounces is 45 so that belongs on the left. And then there is one cube so we can just right x. SO for the right side (combined with the other parts we know looks like this.
27 + 7x = 45 + x

NOW for the solving!
<span>27 + 7x = 45 + x
</span>subtract x from both sides
27 + 6x = 45
subtract 27 from both sides
6x = 18
then divide 6 from both sides
x = 3

So the circles are 3 ounces!!!!

I hope that helps! And feel free to ask me any questions!!

- mathwizzard3

5 0

3 years ago

What is the first step that you have to do in order to solve the proportion: ? 8.5 26y = 3 y = 3(26) 3(y) = 1(26)

leva [86]

Answer:

$3(y)=1(26)$

Step-by-step explanation:

Please consider the complete question.

What is the first step that you have to do in order to solve the proportion: one-third equals the fraction y over 26?

We can represent our given information in an equation as:

$\frac{1}{3}=\frac{y}{26}$

To solve our given equation, we need to cross multiply our equation as:

$3(y)=1(26)$

Therefore, the 1st step to solve the equation would be $3(y)=1(26)$ .

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3 years ago

You are attending a college night. There is a different school in each classroom. Of the schools in attendance 30% had a sports

elixir [45]

Answer:

0.10

Step-by-step explanation:

Technically it's 0.12 but I only say this because they rounded by from 58 to 60 in their question

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2 years ago

Yoshi is painting a large wall in the park. He measures the wall and finds that the dimensions are 4 m by 20 m. Yoshi has a can

-BARSIC- [3]

No. The area of a square/rectangle is length * height, and 4 * 20 is 80m^2. Because Yoshi has a can of paint that can cover 81m^2, and 81m^2 > 80m^2, Yoshi does NOT need to buy more paint.

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3 years ago