Step-by-step explanation:
Add all of the numbers together
7 + 9 + 0 + (-9) + (-7)
simplify it down to:
(7+9+0)= 16
-9 + (-7)= - 16
So, -16 + 16 = 0
then divide 0 by 5 to get the answer of 0
To find the mean you have to add all of the numbers together and then divide by the amount of numbers that you have.
Answer:
B (6:17)
Step-by-step explanation:
The values of red and white are 8 and 4, so you add them. The ratio should then be 12:34 because 34 is the total of all values. When simplified, 12:34=6:17
Im pretty sure its A, but dont count on me!!! i hope it helps :/
Answer:
Step-by-step explanation:
a ) The worth of Jean-Claude's gnome after 1 year
= 80000 x 1.02
= £81600
b ) common ratio of geometric progression
= 81600 / 80000
= 1.02
c ) worth after 10 years
= 80000 x 1.02¹⁰
= 80000 x 1.21899
= £97519.55
d )
120000 = 80000 x 
1.5 =
ln1.5 = k ln 1.02
k = ln 1.5 / ln 1.02
= .4054 / .0198
= 20.47 years .
Answer:
C
Step-by-step explanation:
