Hello there.
First, assume the numbers 
such that they satisties both affirmations:
- The sum of the squares of two numbers is
. - The product of the two numbers is
.
With these informations, we can set the following equations:
Multiply both sides of the second equation by a factor of 
:
Make 
We can rewrite the expression on the left hand side using the binomial expansion in reverse: 
, such that:
The square of a number is equal to 
if and only if such number is equal to , thus:
Substituting that information from 
in 
, we get:
Calculate the square root on both sides of the equation:
Once again with the information in , we have that:
The set of solutions of that satisfies both affirmations is:
This is the set we were looking for.
Answer:
x > or = 20
Step-by-step explanation:
$375x > or = $7500
----------- -----------
$375 $375
----------------------------------
x > or = $20
- 1 < - x/3 < 1
1st. Multiply all parts by 3:
-3 < - 3x/3 < 3. Simplify the mid term:
-3 < -x < 3. Now multiply all terms by - 1. Note when you multiply by a negative number, you flip the inequality signs:
(-1)(-3) < (-1)(-x) < (-1)(3)
+3 > x> -3
Answer: i think it will take 48 hours
Step-by-step explanation:
here's how to get 48 so basically 450-400-2= 48
now if you end up doing 400 - 450 then you will get -50 if you do 400-450-2 you will get a -52 <u><em>so you want to make sure you do the biggest number first and then do the smaller numbers to get 48</em></u> like 450 - 400 - 2 and then you will have 48
i hope this helps!
