Answer:
25°
Step-by-step explanation:
setup as (2x-5)=45 add 5 to both sides to cancel out the parentheses so u should have 2x=50 left now divide by 2 and u should get 25
This right triangle with 30°, 60° and 90° is called semi equilateral. Its particularity is that the side opposite to 30° is equal half of the hypotenuse.
Here the longest leg is nothing but the hypotenuse =18.(given):
Let x be the side opposite to 60° and let's calculate it by Pytaghoras:
18² =(18/2)² + x²,
324 = 81 + x² . Subtract 81 from both sides
324 - 81 = 81 + x² - 81
243 = x² and x = √243 =9√3
Answer:
The value of the 50th percentile is 33.2 hours.
Step-by-step explanation:
The median corresponds to the 50th percentile, then the value of the 50th percentile is 33.2 hours.