Step-by-step explanation:
floor = 12*10= 120 sq ft
rug = r² = 9 Пr2
120-9π = 91.74 sq ft
Answer:
22 degrees, 1. 2 degrees, 2. 14 degrees, 3. 14 degrees, 4.30 degrees
Step-by-step explanation:
make the denominators the same so you cancompare
<span>Make sure the bottom numbers (the denominators) are the same.Subtract the top numbers (the numerators). Put the answer over the same denominator.Simplify the fraction (if needed).</span>
According to the problem, Drones have just mother & no fathers.
Having said that it become easy to solve the problem:
a. Based on this information, how many parents will a drone have? 1
b. How many grandparents will a drone have? 2
c. 1)How many great-grandparents, 3
2)great-great-grandparents, 5
3)great-great-great-grandparents will a drone have, 8
d. Write the numbers together, and determine what type of sequence they form:
1,2, 3, 5, 8 (notice that the 3rd term = the sum of the preceding numbers 3=1+2, 5=3+2, 8= 5+3) So it's a Fibonacci sequence
e. Write the sequence using a recursive function: a(n) = a(n-2)+a(n-1)
f. Use the Internet to research: Do it & you will find several related facts
g. In your research, what famous number ...
Let's take again the Fibonacci sequence:
1, 2, 3, 5, 8, 13, 21, 34, ...
Now let's evaluate the ratio between 2 consecutive number:
3/2 =1.5
5/3= 1.666
8/5 = 1.6
13/8 = 1.625
21/13 =1.615
34/21 = 1.619
This ratio tends to be 1.618 which is calle the Golden Ratio
