Answer:
Step-by-step explanation:
x^2.x^1
=9^2.9^1
= 9 multiplied by 9
=81
9 multiplied by 1
=9
81 multiplied by nine
=585.198599
Answer:
(-2,1)
Step-by-step explanation:
The solution is where the two equations/lines intersect, which is at (-2,1)
Answer:
This is an independent event, as the marble is put back into the bag. If it were removed completely, it would be dependent.
Answer:
About $865
Step-by-step explanation:
there are 52 weeks in a year
so 45000%52 is $865
Answer:
Mean = 10.2
Standard deviation = 4.0
Step-by-step explanation:
The average age = mean age
Mean = (16 + 10 + 5 + 7 + 13)/5
Mean = 51/5 = 10.2
What is the standard deviation will be square root of variance
(16 - 10.2) + (10 -10.2) + (5-10.2) + (7-10.2)+( 13-10.2)
5.8 + 0.2 -5.2 - 3.2 + 2.8
Square each number
33.64 + 0.04 + 27.04 + 10.24 + 7.84
Variance = 78.8/5 = 15.76
Standard deviation = 3.969 = 4.0
