Answer: 5+10=15
Step-by-step explanation:
Answer:
x = 4
Step-by-step explanation:
Given
=
( cross- multiply )
3x = 12 ( divide both sides by 3 )
x = 4
Closed shape, do not intersect - geometry definition
Answer:
<u>BC = 3.1666</u>
Step-by-step explanation:
To solve this you need to know that cosine∅ = adjacent/hypotenuse. We already know that hypotenuse = 5 and that ∅ = 70*. By substituting these in you will get cosine 70* = adjacent/5. Evaluate cosine 70* on the calculator and get 0.633... Multiply both sides by 5 and get adjacent is about equal to 3.1666. Because BC is the adjacent side of the triangle, this is the length of BC.
The discriminant of the equation

is 76.
I hope that helps.