Answer:
negative association
Step-by-step explanation:
This diagram is a scatter plot which represents a set of data. Data on a scatter plot can fit one of three descriptions: positive (increasing), negative (decreasing) or no association (points do not form any kind of line). Given this data and the line of best fit, or the line that pass through the majority of the points, it is a decreasing line. Since the line goes downhill, it is a negative association.
Answer: 11,700 times
Step-by-step explanation:
First find the number of seconds in 3 minutes 15 seconds.
Each minute is 60 seconds so 3 minutes would be:
= 3 * 60
= 180
Add the 15:
= 195 seconds
Lightning strikes more than 60 times per second so we shall use 60 times
= 60 * 195
= 11,700 times
Answer:
Step-by-step explanation:
You use the Pythagorean theorem since a triangle is formed.
36-4 =
x= 
Answer:
A.
Step-by-step explanation:
In the attached file
Answer:The faster person will do the job in 7.53hours
Step-by-step explanation:
Let t=faster person
Let t-1= the other person
The job to be done =1
Each person will do a fraction of the job
4/t+4/t-1=1
Multiply both sides wit t(t-1)
4(t+1)+4t=t(t-1)
4t+4+4t=t^2+t
8t+4=t^2+t
0=t^2+t-8t-4
t^2-7t-4=0
Use Almighty formular to solve d quadratic equation
X=-b+- rootb^2-4ac/2a
X=t,a=1,b=-7 c=4
Substituting the values you get:
t=-7 +- root 49+16/2
t=-7 +- root 65/2
t=7 +8.06/2=15.06/2
t=7.53 hours
