Please help, I've been working on this for 30 min now...

Mathematics

1 answer:

MaRussiya [10]3 years ago

3 0

Step 1: Y is equal to $\frac{3}{4}x + 2$ so where ever you see a y in the equation 3x - 4y = -5 replace it with $\frac{3}{4}x + 2$

3x - 4( $\frac{3}{4}x + 2$ ) = -5

Now all your variables are x and you can solve for x

Step 2: Distribute for to the numbers in the parentheses

3x - 3x - 8 = -5

Step 3: Combine like terms

0x - 8 = -5

0x = 3

Step 4: Isolate x

0x/0 = 3/0

3/0 is undefined

^^^ This means that there is no answer

If you look at the graph below you can see that these lines are parallel and therefore have no intersection point

Hope this helped!

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Factored form with it’s solution x^2 + 2x -3 =0

Maru [420]

Answer:

(x + 3) (x - 1

Step-by-step explanation:

here's your solution

=> x^2 + 2x - 3

=>. By using middle term split

=> x^2 + 3x - x - 3

=> taking common

=> x( x + 3) - 1(x + 3)

=> (x + 3) (x - 1)

Hope it helps

3 0

3 years ago

Three security cameras were mounted at the corners of a triangular parking lot. Camera 1 was 106 ft from camera 2, which was 133

Harrizon [31]

Correct Answer:
Option C. Camera 2

The greatest angle is always opposite to the side measure greater in length. So first we find the greatest side.

The distance between cameras is:

Camera 1 and Camera 2 : 106 feet
Camera 2 and Camera 3 : 133 feet
Camera 1 and Camera 3 : 151 feet

So the largest side of the triangle is the side between camera 1 and camera 3. So the camera opposite to this side will have to cover to greatest angle. The camera opposite to this side is Camera 2. This scenario is also shown in figure below.

Therefore, Camera 2 had to cover the greatest angle.