Answer:
x = 3 and 7
There are two true solutions.
Step-by-step explanation:
To solve 
, use inverse operations by squaring both sides of the equal sign.
The quadratic expression can be factored into binomials and set equal to 0 by the zero product property to find x.
(x - 3) ( x - 7) = 0
x-3 = 0 so x=3
x-7 = 0 so x=7
Now check each solution into the original equation to be sure it solve the solution and is not extraneous.
and
![3-7 = \sqrt{-4(3)+28}\\[tex]-4 = \sqrt{16}\\-4 =-4](https://tex.z-dn.net/?f=3-7%20%3D%20%5Csqrt%7B-4%283%29%2B28%7D%5C%5C%5Btex%5D-4%20%3D%20%5Csqrt%7B16%7D%5C%5C-4%20%3D-4)
[/tex]
Answer:
2.75
Step-by-step explanation:
(y-5)6+15–5y=5
(y-5+5)6-6+15-15–5y=5-6-15+5
y-5y=-11
-4y/-4=-11/-4
y=2.75
Answer:
Step-by-step explanation:
Answer:
1000 Grams : 1 Kilogram or 1 Kilogram : 1000 Grams
Step-by-step explanation:
In the metric system the value of a kilogram is solved like:
When converting from grams to kilograms, we solve it like:
Let's take for example:
2 KG is how many grams?
We use the grams to kilograms formula like so:
Then we end up with:
g = 2000
Answer:
Step-by-step explanation:
This is even because if we put x=1 then we get 10 if we put x=2 then we get 20 and so on. So all these are even numbers.
