2 years ago

Hello, can anyone help please? :D

Mathematics

1 answer:

Lubov Fominskaja [6]2 years ago

6 0

Answer:

just guess

Step-by-step explanation:

i got it right

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Find the number of sides of a regular polygon in which the measure of an interior angle is three times the measure of an exterio

Serhud [2]

The sum of the interior angles of any polygon is given by (n-2)180°, where n is the number of sides.

Also sum of all the exterior angles of any polygon is 360°

Given (n-2)180° = 3(360°)

=> n-2 = 6

=> n = 8.

Hence the number of sides of a polygon is 8

6 0

1 year ago

The scores for a certain test of intelligence are normally distributed with mean 85 and standard deviation 11. Find the 90th per

jonny [76]

Answer:

99.1 is the 90th percentile of these scores.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 85

Standard Deviation, σ = 11

We are given that the distribution of score is a bell shaped distribution that is a normal distribution.

Formula: