Answer:
cosA = 0.6
Step-by-step explanation:
Using the Pythagorean identity
sin²A + cos²A = 1 ( subtract sin²A from both sides )
cos²A = 1 - sin²A ( take the square root of both sides )
cosA = ±
Since only the positive value is required , then
cosA =
=
=
= 0.6
Answer:
X=-1
Step-by-step explanation:
It’ll probably look like this if so..
The shortest distance from A to B in the diagram is 17 m.
<h3>How to find the shortest distance?</h3>The shortest distance from D to B can be found as follows:
using Pythagoras theorem,
c² = a² + b²
where
Therefore,
DB² = 15² + 8²
DB² = 225 + 64
DB² = 289
DB = √289
DB = 17 m
learn more on distance here: brainly.com/question/20516334
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