Answer:

Step-by-step explanation:






Answer:
Step-by-step explanation:
This is a fascinating question. It turns out to be true because of the relationship between a 30 degree angle and a 60 degree angle
The answer is that the product of sin30*sin60 = cos(30)*cos(60). This happens because sin(60) = cos(90-60) = cos(30)
Other angles will do the same thing sin36 * sin54 = cos(54)*cos(36)
Ratio is the comparison of two numbers In A problem
Answer:
23/2
Step-by-step explanation:
first turn the mixed number into a fraction:
2*10=20
20+3=23
so, we get 23/2
Answer:

Step-by-step explanation:
3.242424.....
This number can be written as 3 + 0.242424....
We convert the decimal part into fraction
Let x= 0.242424......
Multiply both sides by 100
100x = 24.2424....
x= 0.2424.....
------------------------------------- (subtract it)
99x = 24
Divide both sides by 99
So x= 24/ 99
simplify the fraction

3.242424... can be written as 3 + 0.242424....
Replace the fraction for decimal
So final answer is 