Answer: Mean- 45
Median- 45
Mode- Nil
Range- 6
Step-by-step explanation:
Mean= sum of data set/number of data set= 42+43+44+45+46+47+48/7 =45
Median= arrange in an ascending order, then pick the middle data or number= 45
Mode- the number with highest frequency, in the case of this question, all number appeared once, hence no mode.
Range= difference between the highest and lowest value in a data set= 48-42=6
Graph of f(x)=10(1.3)^x
Graph of f of x equals 10 multiplied by 1.3 to the power of x.
(480 - 400) / 400 = 80 / 400 = .2 * 100 = 20%.
480 + .10 * 480 = 480 + 48 = 528
(528 - 480) / 480 = .1 * 100 = 10%
(x - 480) / 480 = .10
x/480 - 480/480 = .10
x/480 - 1 = .10
x/480 = 1.10
x = 1.10 * 480
= 528
1/8 of the lawn in 1/4 of an hour. That mean you would need a whole hour to do 4/8 or 1/2 of the lawn. So you would need two hours to do the whole lawn.