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Answer:
It CAN be 28.30
Answer:
Exponential
Step-by-step explanation:
Answer:
16.5 year
Step-by-step explanation:
Using, mean = sum/no. *of observations
Here,
=> 16.2 = (sum of ages of boys)/18
=> 16.2 x 18 = sum of ages of boys
=> 291.6 = sum of ages of boys
Similarly, sum of ages of girls = 27 x 16.7 = 450.9
Mean(total) = (sumof agesof boys + girls)/45
Mean = (291.6 + 450.9)/45 = 16.5
Answer:
(a) and (f)
Step-by-step explanation:
Given

See attachment for table and options
First, we calculate the slope of the table

Using:


So, we have:



The equation is then calculated using:

This gives:



So, we have:
--- The given equation
and
--- The equation of the table
An equation is represented as:

Where:
m = slope or rate of change
b = y intercept
So, for the given equation: 
Rate of change = 5
y intercept = 12
For the table: 
Rate of change = 12
y intercept = 5
In conclusion:
(a)
has the greater rate of change:
and
(f)
has the greater y intercept
He rode his bike for 1.6 hours!
Hopes this helps you! :-)