Mathematics, 06.10.2019 22:00 joshuac15

The height, in meters, of a coin dropped from a tall building is modeled by the equation d(t) = 4.9t2 where d equals the distance traveled at time t seconds and t equals the time in seconds. what does the average rate of change of d(t) from t = 3 to t = 6 represent?

the coin travels an average distance of 44.1 meters from 3 seconds to 6 seconds.

the coin falls down with an average speed of 14.7 meters per second from 3 seconds to 6 seconds.

the coin falls down with an average speed of 44.1 meters per second from 3 seconds to 6 seconds.

Answers: 3

Show answers

Answers

For t = 3 we get:

d(3) = 4.9*3^2 = 4.9*9 = 44.1

For t=6 we get:

d(6) = 4,9*6^2 = 176.4

The difference of these 2 values gets us distance traveled between t=3 and t=6 seconds.

d(6) - d(3) = 132.3 meters

if we divide this number with number of seconds that it takes coin to cover that distence we get:
132.3/(6-3) = 44.1
which is average speed between t=3 and t=6

answer is last option.

Answer from: Maria3737

Option C

Step-by-step explanation:

Given : A coin dropped from a tall building is modeled by the equation d(t) = 4.9t^2 where, d is the distance traveled at time t seconds and t equals the time in seconds.

To find: The average rate of change of d(t) from t = 3 to t = 6

d(t) = 4.9t^2

For t = 3 :

$d(3) = 4.9\times3^2 = 4.9\times9 = 44.1$

For t=6 :

$d(6) = 4.9\times6^2 =4.9\times36= 176.4$

The difference of distance traveled between t=3 and t=6 seconds.

d(6) - d(3) = 176.4-44.1= 132.3

Now, we find the average speed :

$Speed=\frac{Distance}{Time}$

$Speed=\frac{132.3}{6-3}$

$Speed=\frac{132.3}{3}$

Speed=44.1m

Therefore, Option C - The coin falls down with an average speed of 44.1 meter from 3 seconds to 6 seconds.

Answer from: Quest

The answer would be: b
Which is true about the functional relationship shown in the graph? pls me

Answer from: Quest

see below

step-by-step explanation:

7. there are 10 data points in the set. the middle point is between 5 and 6. the middle point in the top half is 8 and the middle point in the bottom half is 3. to find the iqr , take point 8 and subtract point 3

mid term point 8 = 100 point 3 = 88

iqr = 100-88 = 12

final point 8 = 93 point 3 = 78

iqr = 93 - 78 = 15

the final has the greatest iqr

6. b - there is a high data value that causes the data set to be asymmetrical for the males: the data for males are high and asymmetrical . there is an outlier for the males that skews the data

5. the iqr is a better measure of spread for the movies and basketball games. since the basketball game has an outlier, we do not want to use standard deviation for measurement.

3. the exam median is much higher than the class median. the median line is farther to the right on the exams

2. there is no way to tell what the means are from the box and whisker plots.

Another question on Mathematics

Mathematics, 22.06.2019 04:30

To start to solve the system of equations below, which number would you multiply in the equation -2x-5y=-1? the two equations are -2x-5y=-1 and 4x+2y=8

Answers: 1

Answer

Mathematics, 22.06.2019 05:00

Abigail made a quilt that has an area of 4800 square inches. the length of the quilt is 1 1/3 times the width of the quilt. what are the dimensions of the quilt

Answers: 1

Answer

Mathematics, 22.06.2019 05:00

Troy has a 7/23 balloon mortgage on his $260,000 home. he has been making payments of $1323 each month and will have a balloon payment due for the amount of $198,569.

Answers: 1

Answer

Mathematics, 22.06.2019 06:20

Which formula can be used to describe the sequence? -81 ,108,-144,192

Answers: 2

Answer

You know the right answer?

The height, in meters, of a coin dropped from a tall building is modeled by the equation d(t) = 4.9t...

Questions