Answer:
1.89%
Step-by-step explanation:
Probability of a person taking the survey = 0.18
probability of a person not taking the survey = 1- 0.18
= 0.82
probability of the first 20 people not taking the survey =
= 0.0189
=1.89%
It would take exactly 4 years for these trees to be the same height.
Step-by-step explanation:
Given,
Height of Tree A = 9 feet
1 feet = 12 inches
9 feet = 9*12 = 108 inches
Growth rate = 2 inches per year
Let,
y be the number of years.
A(y)= 108 + 2y
Height of Tree B = 8 feet
8 feet = 8*12 = 96 inches
Growth rate = 5 inches per year
B(y)=96+5y
In case of same height;
A(y)=B(y)
Dividing both sides by 3
It would take exactly 4 years for these trees to be the same height.
Keywords: functions, division
Learn more about functions at:
#LearnwithBrainly
Answer:
81 meters.
Step-by-step explanation:
The height (in meters), h(x) of a hovercraft x seconds after takeoff, is modeled by:
We are to determine its height at the time of takeoff.
Now, at the time of takeoff, x=0.
We substitute x=0 to solve for h.
The height of the hovercraft at takeoff is 81 meters.
Answer:
1.) 2.) 3.)
Step-by-step explanation:
The positive sign means that they got more, the negitive sign is how many that they used. There are no cups left at the end of the week because there is zero there. I think that there were 125 cups used on tuesday because that was how many that they used that day.