Answer:
The area for a square is given by:
And we can find the dimension for one side like this:
Replacing we got:
Then since we are interested in the how many feet of fencing does she need, we can find the perimeter given by:
and replacing we got:
Step-by-step explanation:
For this case we know that Suzanne want to put a fance around a square garden with an area of 49 ft^2
The area for a square is given by:
And we can find the dimension for one side like this:
Replacing we got:
Then since we are interested in the how many feet of fencing does she need, we can find the perimeter given by:
and replacing we got:
Answer:
what is the equation.
Step-by-step explanation:
comment the equation
The problem is modelled in the diagram below
We will use the cosine rule to find x
x² = 60.5² + 195² - [2×60.5×195×cos(32°)]
x² = 3660.25 + 38025 - [23595 × cos(32)]
x² = 41685.25 - 19683.50019
x² = 22001.74981
x = √22001.74981
x = 148.33 feet (rounded to 2 decimal place)
Note: the cosine rule is shown in the second diagram below
any number times 1 is itself. 20 x 1 = 20.
Answer: 2/3
That x and y vary inversely means the product xy is a constant. The second sentence tells us that this constant product is (1/3)(1/2) = 1/6. So when x = 1/4, x* y = 1/4 * y = 1/6 as well. Dividing both sides by 1/4, we have y = 1/6 * 4 = 2/3.
