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soldier1979 [14.2K]
3 years ago
10

Please answer CORRECTLY !!! Will mark brainliest !!!!!

Mathematics
1 answer:
NemiM [27]3 years ago
7 0

Answer:

  9

Step-by-step explanation:

Locate the point marked 3 on the axis marked y. Follow the horizontal line to the right until it meets the blue line representing g(x). From that point, follow the vertical line down to the x-axis to see the x-coordinate: 9.

  x = 9 . . . for g(x) = 3

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100 points! explain well for brainliest
Dima020 [189]

Answer:

A

Step-by-step explanation:

Remember that the formula for the area of a triangle is:

A=\frac{1}{2}bh

In this case, our base will be the distance from the origin point (0, 0) to (x₁, y₁).

Our height will be the distance from the origin point (0, 0) to (x₂, y₂).

So, let's find each of the distances using the distance formula:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2

BASE:

Let's let (x₁, y₁) be itself and let's let (0, 0) be (x₂, y₂). Substitute this into the distance formula. This yields:

d=\sqrt{{(0-x_1)^2+(0-y_1)^2

Simplify:

d=\sqrt{(-x)^2+(-y)^2

We can remove the negative:

d=\sqrt{((-1)x_1)^2+((-1)y_1)^2

d=\sqrt{x_1\!^2+y_1\!^2}

And this is the length of our base.

HEIGHT:

Let' let (0, 0) be (x₁, y₁) and (x₂, y₂) be itself. Substitute them into our distance formula:

d=\sqrt{(x_2-0)^2+(y_2-0)^2

Simplify. So, our height is:

d=\sqrt{(x_2)^2+(y_2)^2

Therefore, substitute the base and the height for b and h in our equation yields:

A=\frac{1}{2}(\sqrt{(x_1)^2+(y_1)^2)}(\sqrt{(x_2)^2+(y_2)^2})

We can combine the square roots by multiplying. So:

A=\frac{1}{2}\sqrt{(x_1\!^2+y_1\!^2)(x_2 \!^2+y_2\!^2)

The answer choice that represents this is A.

So, our answer is A.

And we're done!

5 0
4 years ago
Read 2 more answers
The area of a right triangle is 36 square
stepan [7]
Base is 12 and height is 24
3 0
3 years ago
Read 2 more answers
I don’t understand any of this and its dude tomorrow someone help ;)
faltersainse [42]
You should get the app "photomath" that'll help you out alot!!!
6 0
3 years ago
Can someone tell me what is...............<br> sike I lied here have 100 points
bixtya [17]

Answer:

What is 9+10? It's 19

Step-by-step explanation:

Omg, thank you so much again!!!

You're da best!!!

6 0
2 years ago
Read 2 more answers
The area of a bulletin board is 55 ft2. The length is nine feet less than four times the width. Find the length and the width, i
galben [10]

Answer:

The length and width are 11ft and 5ft respectively

Step-by-step explanation:

let the

length = L

Width = W

Area = LW = 55

The length is nine feet less than four times the width

L = 4W - 9

W (4W - 9) = 55

4W^2 - 9W -55 = 0

4W^2 - 20W + 11W - 55 = 0

4W(W - 5) + 11(W - 5) = 0

(W - 5)(4W + 11) = 0

W - 5 = 0 , 4W + 11=0

W = 5 or  - 11/4

since the width cannot be negative, W = 5

LW = 55

L = 55/5

L = 11

The length and width are 11ft and 5ft respectively.

7 0
3 years ago
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