Answer:x = 12,5
using thales's theorem, we have:
Step-by-step explanation:
TO solve this question on "how large of a sample must Beth have to get a margin of error less than 0.04", we will use the margin of error formula:
Here, for a 80% confidence level,
(given)
Thus, margin of error, E=0.04
rearranging we get:
Plugging in gives us:
Thus, Beth's sample for the true proportion of high school students in the area who attend their home basketball games must have 256 students.
If 1 classroom uses 16 sections, then 6 classrooms would use :
6 * 16 = 96 sections
and 14 classrooms would use : 14 * 16 = 224 sections
Answer:
95
Step-by-step explanation:
n is 360-121-144 since all the sums of the exterior angles add up to 360 and so 360-121-144=95 so our answer is 95