14 An amusement park charges an entry fee of $29.50, plus an additional $2.50 for each park ride.

Mathematics

1 answer:

Sonja [21]3 years ago

3 0

Answer:

Step-by-step explanation:

First you need to subtract the entrance fee 81 - 29.50 = 51.50

Now divide the amount left by each rides price to find your answer

51.50 / 2.50= 20.6

Since you cannot ride a .6 of a ride you will have to go to the nearest whole number without rounding up it will be twenty rides

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The Highway Safety Department wants to study the driving habits of individuals. A sample of 41 cars traveling on the highway rev

PolarNik [594]

Answer:

58,21 ≤ μ ≤ 61,79

Step-by-step explanation:

Normal Distribution

Poputation size n = 41

Population mean X = 60

Population standard deviation σ = 7

Question is: Confidence Interval 90 % ??

As Confidence Interval is 90 % then α = 10 %

And as we are dealing with a two tail test

α/2 = 0,05

We look in Z table for values for α/2 = 0,05 and find

z(α/2) = - 1,64 and z(α/2) = 1,64

Then

Confidence Interval is

X - Zα/2 * σ/√n ≤ μ ≤ X + Zα/2 * σ/√n

60 - ( 1,64 ) * 7/√41 ≤ μ ≤ 60 + ( 1,64 ) * 7/√41

60 - 1,64 * 1,09375 ≤ μ ≤ 60 + 1,64 * 1,09375

60 - 1,79375 ≤ μ ≤ 60 + 1,79375

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4 0

4 years ago

What is the equation of a line that is parallel to 4x+6y+5=0 and passes through the points (6,9)

OLga [1]

Step-by-step explanation:

Equation of given line is:

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4 0

4 years ago

20 points for u if u teach me how to do this and answer the questions for me

ivann1987 [24]

First write down the formula which is: y=mx+b
M is the slope and B is the y-intercept
The slope is rise/run, so if your slope is 2 then, 2 is your rise and 1 is your run
In order to find the y intercept you have to plot the points given in your question and and move your rise down and moving the run to the left until you find your y-intercept
Once you find the y-intercept, just plug in your slope and y-intercept

8 0

3 years ago

Does someone know the answer to this?

solmaris [256]

Answer:

${6}^{6}$