All of the centra angles in a regular polygon must add up to 360 degrees. Also, because you're told that it is a regular polygon, the "regular" indicates that all of the central angles will be the same. Divide 360 degrees by 18 degrees to get the number of central angles, which is the same as the number of sides. 360/18 = 20. Therefore, the polygon has 20 sides. Hope that helps!
Answer:
Probability that at least 40 can taste difference between two oils:
P(x ≥ 40) = p( x - µ / ∂ ≥ 39.5 – 30 / √29.1)
= p( z > 1.76)
= 1 – 0.9608
= 0.0392
Step-by-step explanation:
Solution:
Given:
Random sample = n = 1000
Probability of people identify the taste = p = 0.03
Probability that people do not identify the taste is 0.97.
Since np = 1000 x 0.03 = 30
And
nq = n(1 – p) = 970
Verify the condition:
np ≥ 10
1000 x 0.03 ≥ 10
30 ≥ 10
And nq ≥ 10
1000 x 0.97 ≥ 10
970 ≥ 10
Hence conditions are satisfied, it is valid to apply normal approximation to binomial distribution.
µ = 30 and ∂ = √29.1
Probability that at least 40 can taste difference between two oils:
P(x ≥ 40) = p( x - µ / ∂ ≥ 39.5 – 30 / √29.1)
= p( z > 1.76)
= 1 – 0.9608
= 0.0392
Answer:
proportional
Step-by-step explanation:
not the other guys wrong answer ФωФ
2 acute and 2 obtuse and 0 right angles
Answer:
P=4
Step-by-step explanation: