Answer:

Step-by-step explanation:
Given
The attached triangle
Required
Find cos V
In trigonometry:

In this case:

Where

and
-- Pythagoras


Take square roots




So:



Rationalize:


143o
interior angles of a triangle always add up to 180o
Adding or subtracting a constant from each value of a distribution changes the mean, but not the standard deviation.
The standard deviation will equal 3.
The two numbers are 14 and 15.
Answer:
9.57 inch
Step-by-step explanation:
(4/3)×pi×8³ = 14×16×h
h = (4/3)×pi×8³ ÷ (14×16)
h = 64pi/21 inch
Or, 9.57 inch (3 sf)