We want to find

, where

is a binomial distribution with

and

. So
Answer:
see explanation
Step-by-step explanation:
(a)
(the side required )² = sum of squares of other 2 sides - ( 2 × product of other 2 sides and cos(angle opposite side required ) )
x² = 12² + 15² - (2 × 12 × 15 × cos71°)
(b)
x² = 144 + 225 - 360cos71°
= 369 - 360cos71° ( take square root of both sides )
x = 
≈ 16 cm ( to the nearest integer )
7.90 not 100 percent sure though.
Explanation:
The triangle is a right triangle if the lengths of its sides satisfy the Pythagorean theorem: <em>if the square of the length of the longest side is equal to the sum of the squares of the lengths of the other two sides</em>.
Answer:
4 raised to 4 is 256
Step-by-step explanation: