Register
Find x. 30 20 Need help with this question asap
175k views
5 votes
Find x.
30
20
Need help with this question asap

Find x. 30 20 Need help with this question asap-example-1
User Mwoelk
by
5.6k points

2 Answers

5 votes
Cos=adjacent/hypotenuse
Cos30=x/20
x=cos30 *20

Sorry I don’t have a calculator right now
User JeniT
by
6.9k points
2 votes

Answer:

x = 10
√(3)

Explanation:

Using the cosine ratio in the right triangle and the exact value

cos30° =
(√(3) )/(2) , then

cos30° =
(adjacent)/(hypotenuse) =
(x)/(20) =
(√(3) )/(2) ( cross- multiply )

2x = 20
√(3) ( divide both sides by 2 )

x = 10
√(3)

User Kdmurray
by
6.3k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

6.5m questions

8.6m answers

Other Questions

What is the least common denominator of the four fractions 20 7/10 20 3/4 18 9/10 20 18/25
What is 0.12 expressed as a fraction in simplest form
Solve using square root or factoring method plz help!!!!.....must click on pic to see the whole problem
What is the initial value and what does it represent? $4, the cost per item $4, the cost of the catalog $6, the cost per item $6, the cost of the catalog?
What is distributive property ?
Link Copied!