Answer: The rational expression below is undefined when x is equal +5 and -5.
Step-by-step explanation: The rational expression will be undefined when the denominator is equal to zero. So, first you have to take the denominator and make it equal to zero.
Then you divide the whole thing by three to get this:
Now you move 25 over to the other side of the equation and take the square-root of both sides.
Since the square root of 25 is equal to five. We know that the rational expression will be undefined when x= -5 and +5
Answer:
B b^12
Step-by-step explanation:
power to the power rule
(x^a)^b = x^(a*b)
so (b^4)^3 = b^(4*3) = b^12
Your answer would be C.
a=3ft (36/12)
b=3ft
d=3ft (3 feet in a yard)
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Answer:
<em>The voltage at the middle source is</em>
Step-by-step explanation:
<u>Voltage Sources in Series</u>
When two or more voltage sources are connected in series, the total voltage is the sum of the individual voltages of each source.
The figure shown has three voltage sources of values:
The sum of these voltages is:
Operating:
We know the total voltage is , thus:
Equating the real parts and the imaginary parts independently:
4+a=6
1+b=-3
Solving each equation:
a = 2
b = -4
The voltage at the middle source is