Answer:
One side of the park is 63 feet.
C is the correct option.
Step-by-step explanation:
We have been given that the shape of the city park is a square and the area if the park is 441 square yards.We have to find the side of the park.
We know that the four sides of a square is equal and the area is given by
On substituting the value of area, we get
Take square root both sides and ignore the negative values of side
On simplifying, we get
Side = 21 yards
Now, we know that
1 yard = 3 feet
Hence, we have
21 yards = 3×21 = 63 feet
Therefore, one side of the park is 63 feet.
9. 1/18
10. 1/18
<u>Here is how I got my answer for 9:</u>
Step 1: Simply to . Which leaves us with -
Step 2: Find the least common denominator, which is 18.
Step 3: Make the denominators the same as the least common denominator. By multiplying and . Which leaves us with - .
Step 4: Subtract 3 and two, giving you your answer:
<u>Here is how I got my answer for 10:</u>
Step 1: Simplify to . Which leaves us with -
Step 3: Make the denominators the same as the least common denominator by multiplying and . Which leaves us with .
Step 4: Subtract 9 and 8, giving you your answer:
i dont know sorry
cos90* = 0.
Look up the unit circle or type it into your calculator