Answer:
10π
Step-by-step explanation:
Length of the arc = circumference
Circumference formula = 2πr, for a circle, so for a semicircle, it is just πr
r=10
answer = 10π
No. Since you can only draw from the corners to get triangles, you will end up with two right triangles because of the corners. If it is a right triangle, it can obviously not be obtuse.
Answer:
PQ = 98.21
Step-by-step explanation:
PQ/23 = 47/11
PQ × 11
23 × 47
11PQ = 1081
11PQ/11 = 1081/11
PQ = 98.21
First we find the mean (average)
(17 + 18 + 19 + 20 + 21) / 5 = 95/5 = 19
now subtract 19 from all values...then square it
17 - 19 = -2...-2^2 = 4
18 - 19 = -1...-1^2 = 1
19 - 19 = 0...0^2 = 0
20 - 19 = 1....1^2 = 1
21 - 19 = 2...2^2 = 4
now take the mean (average) of those
(4 + 1 + 0 + 1 + 4) / 5 = 10/5 = 2 <== this is ur variance
standard deviation is the square root of the variance...
sq rt 2 = 1.414
Answer:
f(x-4)-3
Step-by-step explanation:
- inside brackets moves right, + moves left
+ outside brackets moves up, - moves down