MDR-+ I
Question Details
Q.3) An Internet company collected data about the
number of internet devices in each of 50 households.
The table shows the results.
a) Work out the total number of internet devices in
these 50 households.
b) Calculate the mean number of internet devices per
household.
Number of
devices
0
1
2
3
4
Number of
households
1
1
2
4
9
raw auto moastre
6
7
8
10
7
3

Which ordered pair is a solution of the equation? y + 5 = 2(2+1) choose 1 answer ® only (5,10 ® only (-1,-5) © both (5, 10) and (-1,-5) 0 neither

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?

Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.