5/8=x/2/5 solve for x. x=?
2 answers:
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Answer:
The solution in interval notation is:
.
The solution in inequality notation is:
.
Step-by-step explanation:
I think you are asking how to solve this for .
Keep in mind .
If then
.
Subtract on both sides:
Factor the difference of squares :
Simplify inside the factors:
The left hand side is a parabola that faces up. I know this because the degree is 2.
The zeros of the the parabola are at x=-6 and x=2/5.
We can solve x+6=0 and 5x-2=0 to reach that conclusion.
x+6=0
Subtract 6 on both sides:
x=-6
5x-2=0
Add 2 on both sides:
5x=2
Divide both sides by 5:
x=2/5
Since the parabola faces us and then we are looking at the interval from x=-6 to x=2/5 as our solution. That part is where the parabola is below the x-axis. We are looking for where it is below since it says the where is the parabola<0.
The solution in interval notation is:
.
The solution in inequality notation is:
.
Answer:
Step-by-step explanation:
im pretty sure its this smack me if im wrong
The equivalent of x is (a) the number of ways to choose 5 letters from S without replacement
<h3>How to determine the equivalent of x?</h3>The set is given as:
S ={A, B, C, D, E, F, G, H}
The above set has 8 elements.
To select 3 elements from S, we use the following parameters:
n = 8
r = 3
And the number of ways is:
As a general rule, the above expression is equivalent to
Evaluate
This means that the number of ways to select 3 elements is equivalent to selecting 5 elements
Hence, the equivalent of x is (a)
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