Answer:
Step-by-step explanation:
cos(2a) = cos^2(a) - sin^2(a)
cos(2a) = 2cos^(a) - 1
cos(2a) = 11/25
11/25 = 2 cos^(a) - 1 Add 1 to both sides
1 + 11/25 = 2 cos^2
25/25 + 11/25 = 2 cos^2(a)
36/25 = 2 cos^2 (a) Divide by 2
36/50 = cos^2 (a) Take the square root of both sides.
6/5*sqrt(2) = cos(a)
The actual distance between the two cities are 30 miles.
<h3>What is a scale drawing?</h3>
A scale drawing is a smaller diagram of a larger image / building / object. The scale drawing is usually reduced at a constant dimension
<h3>What is the actual distance between the two cities?</h3>
The actual distance between the two cities = (22.5 X 4) / 3 = 30 miles
To learn more about scale drawings, please check: brainly.com/question/147532
Answer:
--------------HeyA BenjamiN-----------------
Explanation :
- All you need to do is count up the powers of each term and then sum it , the highest power is considered to be the degree.
SolvinG :
- Our final answer is 6 .
---------------HappY LearninG <3 -------------
Step-by-step explanation:
-x - 3 = x + 3
Solving like terms
-3 - 3 = x + x
-6 = 2x
-6 / 2 = x
-3 = x
The answer is B. And I am not that sure about my answer, but it has to be the correct answer for what you put. THANK YOU!!!!