Ahot air balloon descends to the ground. the function h(t) = 210 – 15t can be used to describe the altitude of the balloon as it approaches the ground. which statement best describes the graph of the function that models the descent of the balloon?

a) the graph is discrete because there cannot be fractional values for time.
b) the graph is discrete because there cannot be negative values for altitude.
c) the graph is continuous because there can be fractional values for time.
d) the graph is continuous because there can be negative values for altitude.

Option c

Step-by-step explanation:

Given that a hot air balloon descends to the ground.

The function

can be used to describe the altitude of the balloon as it approaches the ground.

Here t = time and h = height

Since t cannot be negative we can t starting from 0

t can take any fractional value and h is well defined for any value of t positive

So option c is right

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.