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faust18 [17]
2 years ago
9

What is the value of X

Mathematics
1 answer:
sashaice [31]2 years ago
3 0

Answer:

x = 7

Step-by-step explanation:

=> 9/72 = 3x-20/56

=> 9×45/72 = 3x-20

=> 27/3 = x

=> x = 7

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Someone please help me. Thank you!
Marysya12 [62]

Answer:

y = -1/2x

Step-by-step explanation:

Okay, so you probably heard of the slope-intercept form, y = mx + b. We have to use that formula to create a line that goes through (2,1), because thats the bisector.

Let's have our point start at the origin, (0,0). This you make our equation of y=mx+b   <u>into</u>   y = mx + 0. Since it's 0, let's just <em>drop</em> it out of our equation.

So now for slope. Rise/Run is what we're going to use to create our slope. Since we started at the origin, our slope is going to be negative. We can go down one over two from the origin to get to points (2,1) so why can't that be our slope? We're rising -1, and running 2, making our slope -1/2. In the equation, it would be y= -1/2x + 0, which can be simplified into y = -1/2x

It's a lot of writing and explaining, so I hope this helps! Try asking your teacher just to make sure it's correct.

3 0
2 years ago
A box can be filled completely using 9 layers of 11 units cubes. What is the volume of the box?
mote1985 [20]

The volume of the box is 99 unit cubes.

<h3>What is the volume of the box?
</h3>

A cube is a three-dimensional object that has six faces, twelve edges and eight vertices. The length, width and height of a cube usually has equal dimensions. The volume of the box is a function of the dimension of the cubes in it and the number of layers.

Volume of a box = number of layers x amount of units

9 x 11 - 99 unit cubes

To learn more about the volume of a cuboid, please check: brainly.com/question/26406747

#SPJ1

6 0
2 years ago
Which system of equations is graphed below? On a coordinate plane, a line goes through (0, 1) and (4, negative 2) and another go
natulia [17]

Answer:

The correct option is (B)

(B) x-y = 6 , 3x+4y = 4

Step-by-step explanation:

As we can see in the graph given below, both lines intersect at (4, -2), which should be the solution of given equations:

Find the values of x and y for (B);

x - y = 6 ⇒ (i)

3x + 4y = 4 ⇒ (ii)

Lets consider equation (i)

x - y = 6

x = 6 + y

Substitute in equation (ii)

3(6+y) + 4y = 4

18 + 3y + 4y = 4

7y = -14

y = -2

Substitute in equation (i)

x - (-2) = 6

x + 2 = 6

x = 6 - 2

x = 4

As solution of part C is also (4, -2), it represents the graph

You can also find the (x, y) for other options the similar way, which will show you they don't have the same value

4 0
3 years ago
Read 2 more answers
The equation of a parabola is (y−3)2=20(x+1) .
True [87]

ANSWER

x =  - 6

EXPLANATION

The given parabola has equation:

{(y - 3)}^{2}  = 20 {(x + 1)}^{2}

This parabola opens in the direction of the positive x-axis.

This can be rewritten as:

{(y - 3)}^{2}  = 4(5) {(x + 1)}^{2}

The vertex is (-1,3)

The directrix of this parabola is

x =  - 1 - 5

x =  - 6

6 0
2 years ago
Read 2 more answers
How Much Weight Does An Average 17 Year Old Bench
maxonik [38]
It should be 185 pounds. Have a GREAT day!!!!! :)
8 0
3 years ago
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