k = 
using the ' laws of logarithms '
log x - log y = log (
)
logx = logy ↔ x = y
logk - log(k - 2) = log5
log (
=log 5
= 5
5(k - 2) = k
5k - 10 = k
4k = 10 ⇒ k =
= 
Answer:
x= -2/33
Step-by-step explanation:
let me know if it is right
Answer:
56 Chocolate Chip cookies
Step-by-step explanation:
To find the answer first add up all of the cookies, in this case, 40+40+40+40 witch equals 160. then find 35% of that. This can be done by dividing 160 by 100 to get 1% then multiplying that by 35 to get 35% witch is 56. Therefore you have 56 Chocolate Chip cookies.
Answer:
580.
Step-by-step explanation:
The provided information are:
Population mean
= 500
Population standard deviation
= 40
z-score = 2
The formula to calculate the z-score is:

x = data item.
The data item can be computed as:

Hence, the data item is 580.