The half angle formula is:
sin x/2 = +/- √ (( 1-cos x ) / 2 )
5π/12 = 5π/6 : 2
sin 5π/12 = +/- √(( 1 - cos ( 5π/6)) / 2 )
cos 5π/6 = cos 150° = -√3/2
≈ 0.966 ( this is sin 5π/12 )
The mean is found by dividing the sum of all terms by the number of terms present in the set.
Set up the equation:
The mean of this sequence is
5.
One and seventy-five hundreths is how you say it in word form.
Example:
0.1234
1 is in the tenths place.
2 is in the hundreths place.
3 is in the thousandths place.
Answer:
w=12
l=20
Step-by-step explanation:
The area can be found using the following equation:
Given the information provided, we are also told the following:
Therefore, we can plug in our length and our area:
We can solve by using the quadratic formula.
w=12, so w+8=20.
7 4/5 feet long because 20 2/5 can't be subtracted by 12 3/5 so you change 20 2/5 to 19 7/5. 19-12=7 and 7-3=4 so the answer is 7 4/5 feet long
