Find the dimensions of a rectangle whose perimeter is 22 meters and whose area is 28 square meters.
2 answers:
Answer:
The length is 7 meters.
The width is 4 meters.
Step-by-step explanation:
The area of the rectangle is = 28 sq meter
The perimeter of the rectangle is = 28 sq meter
Now, in terms of formula these can be written as :
or ....(1)
Dividing by 2
.... (2)
Now, putting (1) in (2)
This gives width as 4 , so length = 7
Or width as 7 , so length = 4
Therefore, the length is 7 meters.
The width is 4 meters.
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Ahh yes, negative exponents always give us a scare once and a while. All the negative means is to flip the position of its base. For instance, if x has a negative exponent and x in the denominator, all you would have to do is move x to the numerator with the same power (except it's no longer negative). Before we substitute x and all the other variables which the values given, let's eliminate the negatives first.
After flipping positions/eliminating the negative exponents it should look like this:
which simplifies to
now that everything is simplified, and all negative exponents are eliminated we can substitute x with 2, and y with (-4).
which simplifies to
Final Answer: - \frac{1}{32} [/tex]
After flipping positions/eliminating the negative exponents it should look like this:
which simplifies to
now that everything is simplified, and all negative exponents are eliminated we can substitute x with 2, and y with (-4).
which simplifies to
Final Answer: - \frac{1}{32} [/tex]
Given exponential function:
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When x =0:
when x =1:
when x =2:
We have the points : (0, 1), (1, 1/5), and (2, 1/25)
Using these points, let us provide a sketch of the plot of y =f(x). We have the plot as shown below:
