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2 years ago

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The data set shows the ages of the members of a book club. What is the shape of the distribution of this data set? 19, 21, 18, 1

9, 16, 21, 20, 17, 16, 17, 20, 18

1 answer:

lisabon 2012 [21]2 years ago

6 0

I believe this is just a rectangle when you plot it out into a bar graph or a dot plot.

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The water works commission needs to know the mean household usage of water by the residents of a small town in gallons per day.

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2 years ago

The function d=0.006s squared represents the braking distances d in meters of a car at a speed s in kilometer per second.Graph t

Molodets [167]

Answer:

Part 1) The graph in the attached figure

Part 2) The value of s is approximately 45 km/sec

Step-by-step explanation:

<u><em>The complete question is</em></u>

The function d=0.006s² represents the braking distances d in meters of a car at a speed s in kilometer per second.Graph the function. Then use your graph to estimate the speed of the car if its braking distance is 12 meters

Part 1) Graph the function

Let

s ----> the speed in kilometers per second

d ----> the braking distances in meters

we have

$d=0.006s^2$

This is a quadratic equation (vertical parabola) open upward (the leading coefficient is positive)

The vertex represent a minimum

The vertex is the origin

The axis of symmetry is the y-axis

Find the values of d for different values of s

so

For s=0 km/sec ----> $d=0.006(0)^2=0\ m$ ---> point (0,0)

For s=20 km/sec ----> $d=0.006(20)^2=2.4\ m$ ---> point (20,2.4)

For s=30 km/sec ----> $d=0.006(30)^2=5.4\ m$ ---> point (30,5.4)

For s=40 km/sec ----> $d=0.006(40)^2=9.6\ m$ ---> point (40,9.6)

For s=50 km/sec ----> $d=0.006(50)^2=15\ m$ ---> point (50,15)

To graph the function plot the points and connect them

see the attached figure

Part 2) Use your graph to estimate the speed of the car if its braking distance is 12 meters

Looking at the graph

For d=12 m

The value of s is approximately 45 km/sec

see the attached figure

5 0

2 years ago