I need help on questions 6 and 7 please
1 answer:
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Answer:
Step-by-step explanation:
We are given that a student needs to make a square cardboard piece.
Perimeter of cardboard should be equal to atleast 92 inches
We have to find that which shows reasonable domain for f(s)
Let s be the side of square cardboard
We know that perimeter of square =f(s=)
Then, perimeter of cardboard=
Dividing by 4 on both sides
Hence, the domain of function
Therefore, option d is true.
Answer:d:
Greetings.
The answer is x = -2.
Explanation:
By solving the Absolute-Value Equation. We give them 2 conditions.
<em>When x ≥ 0 and When x < 0</em>
<em>The different is that When x ≥ 0, |x-a| = x-a as defined.</em>
<em>And when x < 0. |x-a| = -x+a as defined.</em>
( 1 ) - When x ≥ 0 for |x-1| and |x+5|
When x ≥ 0, |x-1| = x-1 and |x+5| = x+5
Therefore, x-1 = x+5
Because the equation is false. Therefore, The condition (1) doesn't apply.
( 2 ) - When x ≥ 0 for |x-1| and x < 0 for |x+5|
This time, we try another condition.
When x ≥ 0, |x-1| = x-1 and When x < 0, |x+5| = -x-5.
And we get the answer, |x-1| = |x+5| when x = -2.
But we haven't tried the last condition.
( 3 ) And that is when x < 0 for both terms.
|x-1| = -x+1 (x < 0)
|x+5| = -x-5 (x < 0)
The equation is not true. Therefore, the answer is x = -2.
Answer:
The formula to find the voltage is:
And the voltage is 4 volts
Step-by-step explanation:
To get the equation of voltage you need to isolate v in one side of the equation. In order to do that, you need to remove the divisor/denominator and its square. How will you do that?
First, multiply both sides with R:
That would result into removing the divisor R from the right side of the equation:
Next, square-root both sides:
That would result in removing the square of v from the right side of the equation:
Thus we get the equation, .
To find out the voltage, simply replace R with 32 and P with 0.5
Thus, the voltage is 4 volts.