First, you need to find the trend line that you are going to use before you can answer question 9 and 10.
To do that select 2 points from your list and find the y = mx + b equation.
After you have your equation, all you need to do is plug in the values that you are given for x. Evaluate the expression and you will have your answer.
Answer:
1817
Step-by-step explanation:
2000 - 175 = 1825 and 8 years of digging 1817
Find the length of a side of a square with an area of 169 in^2.
Answer:
D. 13 in
Step-by-step explanation:
A square has sides of equal length.
A = L^2 where: A = area and L = side
L^2 = 169
L=√169
L=13 in^2.
Answer:
a. 90
b. 360
Step-by-step explanation:
The time taken by humming bird to flap its wings= 0.08 sec
by flying 7.2 seconds a typical giant hummingbird flap its wings
times
= 90 times
Since, A ruby-throated hummingbird can flap its wings 4 times faster than a giant hummingbird, it will flap its wings in every 0.02 sec
so in 7.2 seconds it will flap
times = 360 times