Bob is diving
he is at a depth of 2 meters below sea level
sam goes down 4 times as deep
how deep is sam
depth is a negative thing because you are 2 below 0 or -2
then we mutiply -2 by 4 to get 4 times to get -8 meters below sea level
Answer:
<u>-5</u><u><em>x</em></u><u> = 2</u><u><em>y</em></u><u> = -14, -7</u><u><em>x</em></u><u> = 3</u><u><em>y</em></u><u> = 21</u>
Answer:
Below.
Step-by-step explanation:
2x+4 = (x²)²÷2
2x + 4 = x^4/2
x^4 = 4x + 8
x^4 - 4x - 8 = 0
We can try trial an error to solve this
Looks like x = 2 fits it:
2^4 - 4(2) - 8
= 16 -8 -8 = 0
so x = 2 is one solution.
I can't find any other solution among other integers.
To find the other solutions you can draw a graph manually or by using software.
There will be either 1 or 3 more real solutions.
I used software to draw the graph and found one other solution:
x = -1.296
Answer:
-1 and -5
Step-by-step explanation:
You must account for negative u values (which the abs nullifies).
So 
and 
is what we have to solve for.
As for usual equations, isolate the u variable.
5u + 15 = 10
5u + 15 (-15) = 10 (-15)
5u = -5
u = -1
Now you can do the same operation for the other equation and you should get u = -5.
Let's make sure we did it right by replacing u with one of our solutions (-1 or -5).
That's true. What about the other one?
Substituting x=6 and y=1 into both equations,
Since the second equation is not satisfied, (6,1) is not a solution to the system of equations.
