I assume you mean x squared in the first equation
Because both are equal to y, they are equal to each other so x + 5 = x^2 +3
If we then move everything over to one side, we get x^2 - x - 2 = 0
Then factorise it to (x-2)(x+1) = 0
And solve both parts separately
x + 1 = 0
x = -1
x-2 = 0
x = 2
Sub both values into the simplest equation in this case y=x+5
to get y = 4 and y = 7
Answer:Volume = 108 cm ³
Explanation:For a square pyramid, the volume can be calculated as follows:
Volume =
* area of base * height
Volume =
* side² * height
We have:
side length = 6 cm
height = 9 cm
Therefore:
Volume =
* 36 * 9 = 108 cm ³
Hope this helps :)
The first statement is true, because the two negative signs cancel each other out. However, the second is false because any time you multiply a positive number by a negative number the product is always negative. Therefore 4x-6=-24
Answer:
$ -400
Step-by-step explanation:
Let's find each year's profits:
2010 = (-400)
2011 = (-200)
2012 = (200)
To find the total profits from 2010 - 2012, we will add all the values.
(-400) + (-200) + 200
(-600) + 200
200 - 600 = (-400)
$ -400
