Answer:
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
The elevati0on of sea level is 0 km and the elevation of the summit is 10 km
First, I'd like to say that this question is flawed because the diameter of the spool changes as you pull the line out. Some would argue it's negligible I suppose.
At any rate, assuming there's a magic spool where the diameter doesn't change, let's find the cicumference so we can find the length of one wrap around the spool.
circumference = 2*pi*r = 2 * pi * 4cm = about 25.133 cm
Now if it turns 16 times we'll have 16 times the circumference.
16 * (25.133 cm)
= 402.128 cm
6 bags of dog food × $9 = 54
$89 total - $54 spent on dog food = $35 spent on cat food
$35 / $8 = 4.375, but you can't have decimals for cat food bags so round down.
= 4 bags of cat food
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: