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Mariana [72]
3 years ago
7

assume that Congress has approved a new tax to fund scientific research to find alternative fuel sources. everyone will pay $200

. is this tax progressive, regressive or proportional?
Mathematics
1 answer:
Tresset [83]3 years ago
4 0
The answer would be regressive.
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Express the inequality using interval notation.−4≤x≤0
Aleonysh [2.5K]

Answer:

[-4,0]

Step-by-step explanation:

we use closed bracket to show " it includes" and -4 and 0 are included in the solution set

4 0
3 years ago
Delta Airlines quotes a flight time of 2 hours for its flights from Cincinnati to Tampa, meaning that an on-time flight would ar
ddd [48]

Answer:

a) Attached

b) P=0.60

c) P=0.80

d) The expected flight time is E(t)=122.5

Step-by-step explanation:

The distribution is uniform between 1 hour and 50 minutes (110 min) and 135 min.

The height of the probability function will be:

h=\frac{1}{Max-Min}=\frac{1}{135-110} =\frac{1}{25}

Then the probability distribution can be defined as:

f(t)=\frac{1}{25}=0.04 \,\,\,\,\\\\t\in[110,135]

b) No more than 5 minutes late means the flight time is 125 or less.

The probability of having a flight time of 125 or less is P=0.60:

F(T

c) More than 10 minutes late means 130 minutes or more

The probability of having a flight time of 130 or more is P=0.80:

F(T>t)=1-0.04(t-110)\\\\F(T>130)=1-0.04*(130-110)=1-0.04*20=1-0.8=0.2

d) The expected flight time is E(t)=122.5

E(t)=\frac{1}{2}(max+min)= \frac{1}{2}(135+110)=\frac{1}{2}*245=122.5

6 0
3 years ago
Given the data presented in the bar graph, which fruit represents 10% of the fruit for the people surveyed? A) Apple B) Banana C
Angelina_Jolie [31]

It must be B banana because it is the smallest compared to the other ones

8 0
3 years ago
Read 2 more answers
A cylinder has a radius of 6 inches and is 15 inches tall. what is the volume of the cylinder? express the answer in terms of pi
Vikki [24]

The volume of a cylinder that has a radius of 6 inches and is 15 inches tall is 540 π cubic inches

<h3>How to calculate the volume of a cylinder?</h3>

The formula for calculating the volume of cylinder is expressed as:

V = πr²h

where

r is the radius

h isthe height

Given the following parameters

h = 15in

r = 6in

substitute

V =  6^2 * 15π
V  = 540 π cubic inches

Hence the volume of a cylinder that has a radius of 6 inches and is 15 inches tall is 540 π cubic inches

Learn more on volume of a cylinder here: brainly.com/question/9554871

6 0
2 years ago
coach cliffman made a deposit of $1,800 into an account that earns 2% annual simple interest. find the amount of interest that c
igomit [66]
He earns $36 after 3 years
3 0
2 years ago
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