Answer:
A. x = (20√3)/3, y = (40√3)/3
Step-by-step explanation:
The ratios of the side lengths of a 30°-60°-90° right triangle are (shortest to longest) ...
1 : √3 : 2
In this triangle, they are ...
x : 20 : y
Multiplying the first ratio by (20√3)/3, we get ...
x : 20 : y = (20√3)/3 : 20 : (40√3)/3
Then the values of the variables are x = (20√3)/3, y = (40√3)/3.
_____
The above side length ratios correspond to sin(60°) = cos(30°) = (√3)/2, cos(60°) = sin(30°) = 1/2. These are values you might have memorized.
Answer:the answer is b 4r-s
Step-by-step explanation:
Answer:
14.91288 miles
Step-by-step explanation:
We can use a proportion to solve this problem. Put the distance over the cost. We want our answer in miles so we need to convert 8 kilometers to miles. 1 km = .621371 miles
8 km * .621371 miles/ 1 km = 4.971 miles
4 .971 miles x miles
--------------------- = ------------------
10 dollars 30 dollars
Using cross products
4.971 * 30 = 10x
149.1288= 10 x
Divide by 10 on each side
149.1288/10= 10/10 x
14.91288 =x
Answer:
8x+9
Step-by-step explanation:
Add the like terms together.
3x+9+4x+x = 8x+9
Answer:
A. leg
Step-by-step explanation: