Answer:
Step-by-step explanation:
x is greater or equal to 13
Hello,
11x + 7 + -3x - 3 = 11x - 3x + 7 - 3 = (11 - 3)x + 4 = 8x + 4
Answer:
-0.8, -77%
Step-by-step explanation:
These have been rounded up by the way,
I converted it to decimal and percent form
Answer:
(-1,1)
Step-by-step explanation:
All you have to do is plug it in the equation:
(x,y)
For (-1,1)
1=2(-1)+1
Simplify:
1=-1 but you know that 1≠-1 so (-1,1) is not it
For (3,7)
7=2(3)+1
Simplify:
7=7
For (-3,-5)
-5=2(-3)+1
-5=-5
Simplify:
For (0,1)
1=2(0)+1
1=1
<h3>
Answer:</h3>
The real solutions are -5, -4, 4, 5. There are no complex solutions.
<h3>
Step-by-step explanation:</h3>
The equation ...
... x^4 -41x^2 +400 = 0
can be factored as ...
... (x^2 -16)(x^2 -25) = 0
... (x -4)(x +4)(x -5)(x +5) = 0
So, all roots are real and are ...
... x ∈ {-5, -4, 4, 5}
_____
These are the values of x that make the factors zero.
