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Scilla [17]
2 years ago
5

6x 2 - 3x - 30 mathematics?

Mathematics
1 answer:
Mandarinka [93]2 years ago
8 0

<u>Answer:</u>

3 (2x-5)(x+2)

<u>Step-by-step explanation:</u>

We are given the following quadratic expression:

6x^2-3x-30

and we are to solve this by factorizing.

For that, we will take 3 as a common and factorize the rest of the expression.

6x^2-3x-30

3(2x^2-x-10)

Findinf factors of (2x^2-x-10) such that when multiplied they give a product of -20 and when added they give a result of -1:

3(2x^2+4x-5x-10)\\\\3((2x(x+2)-5(x+2))\\\\3(2x-5)(x+2)

Therefore, the factors of the given expression 6x^2-3x-30 are 3(2x-5)(x+2).

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Find the distance between the points (-7, -6) and (-3, 0).
FrozenT [24]

Answer:

7.21 unit

Step-by-step explanation:

distance= √[(-7+3)^2 + (-6-0)^2]

= 7.21 unit

5 0
3 years ago
Find the coordinates of the vertices of the triangle if it’s rotated 270° counterclockwise.
Scilla [17]

If these coordinates are rotated 270° counterclockwise, the resulting coordinates will be;

<em>X' = (3, -1)</em>

<em>Y' = (2, -2)</em>

<em>Z' = (-1, -3)</em>

<h3>Rotation of coordinates</h3>

If the coordinates (x, y) is rotated 270° counterclockwise, the resulting coordinate point will be;

(x, y) - > (y, -x)

From the given triangles, the coordinate points are expressed as

<em>X = (1, 3)</em>

<em>Y = (2, 2)</em>

<em>Z = (3, -1)</em>

If these coordinates are rotated 270° counterclockwise, the resulting coordinates will be;

<em>X' = (3, -1)</em>

<em>Y' = (2, -2)</em>

<em>Z' = (-1, -3)</em>

Learn more on rotation here: brainly.com/question/26249005

#SPJ1

4 0
2 years ago
8/10 lies _____ on number line.
Andre45 [30]

8/10 = 0.8

Therefore, 0.8 (8/10) is put on the number line shown below.

3 0
3 years ago
Find the value of x.
tino4ka555 [31]

Answer:

107

Step-by-step explanation:

x=180-73

x=107

hope it helps

6 0
2 years ago
The length of a rectangle is 3 meters greater than 2 times the width. The perimeter of the rectangle is 30 meters.What is the le
faust18 [17]

Answer:

11 meters

Step-by-step explanation:

Lets say that  w = width of the rectangle, to start. If the length of the rectangle is 3 meters greater than 2 times the width, the length of the rectangle is equal to 3 + 2w.  

The perimeter of the rectangle is 2 * length of rectangle + 2 * width of the rectangle. With the perimeter being equal to 30 and width being w and length being 2w+3:

The perimeter of the rectangle is 2(w) + 2(2w+3) = 30.  

We first need to find out w first, which will give us the width of the rectangle. Taking it step by step, we get:

2w + 4w + 6 = 30

6w + 6= 30

6w = 24 which is done by subtracting both sides by 6 to put the variables on one side and the values on the other side

w = 4 which is done by dividing 6 on both sides

Ultimately, this gets width to be 4 meters. Now that we found the width, we need to plug w = 4 into the equation we set up for length which is 2w+3.

That being said, the ANSWER is:

length of rectangle = 2(4)+3 = 11 meters

Hope this helps! :)

4 0
3 years ago
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