Because domain restrictions apply to this rational expression, x cannot be equal to {-2, 2}.
<h3>What is domain?</h3>
Domain restrictions are any points in the domain where the function will not have a value. This basically means that there is a point in the function where x will not work.
For the numerator, any value of x will suffice. We can have a value of 0 in the numerator, or a positive, negative, or decimal number.
However, the denominator cannot be equal to zero. This is due to the fact that a fraction bar represents division, and we cannot divide by zero.
Here,
x²-4=0
Add 4 to both sides:
x²-4+4 = 0+4
x² = 4
Take the square root of both sides:
√x² = √4
x = 2 or x = -2
The x cannot be equal to {-2, 2} as domain restrictions apply to this rational expression.
To know more about domain,
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Answer:
Step-by-step explanation:
Given
<em>See attachment for options.</em>
Required
Determine which of the options answers the question
Analyzing the option one after the other:
Multiply through by y
Divide through by 4
This can be rewritten as
By comparison with
we have:
<em>Hence: this answers the question.</em>
Answer:
x=15/8
Step-by-step explanation:
Let's solve your equation step-by-step.
2/3x−1/5x=x−1
Step 1: Simplify both sides of the equation.
2/3x−1/5x=x−1
2/3x+−1/5x=x+−1
(2/3x+−1/5x)=x−1(Combine Like Terms)
7/15x=x−1
7/15x=x−1
Step 2: Subtract x from both sides.
7/15x−x=x−1−x
−8/15x=−1
Step 3: Multiply both sides by 15/(-8).
(15/−8)*(−8/15x)=(15/−8)*(−1)
x=15/8
Answer:
no for all
Step-by-step explanation:
First, find a common denominator.
12 will work.
3/4 becomes 9/12, because 4x3=12, and 3x3=9
2/12 stays the same, because the denominator is already 12.
Now, add the two together.
9/12+2/12=11/12
The finished pipe will be 11/12 ft. long. your welcome enjoy :D
