<span>log(x-3)+log(x) = 2 + log(x+2)
---------------------------
log[(x-3)x] - log(x+2) = 2
-----
log[(x^2-3x)/(x+2)] = 2
----
(x^2-3x)/(x+2) = 2^2
-------
x^2-3x = 4x+8
x^2 - 7x - 8 = 0
Factor:
(x-8)(x+1) = 0
Positive solution:
x = 8</span>
Answer:
w=45/2 or 22.5
Step-by-step explanation:
i hope this helps :)
Answer:
2 2/3
Step-by-step explanation:
well needs 1/3 cups for a cake and she only has 8 cups, so just multiply,
1/3x8=2 2/3
Answer:
Step-by-step explanation:
Given
-- City C
--- City K
Required
Determine the 90% confidence interval
This is calculated using:
Calculating 
For a 90% confidence level, the z-score is 1.65. So:
Calculating the standard deviation 
So:
So:
Answer:
4x= 40
Step-by-step explanation:
40/4 = 10
