Answer:
Step-by-step explanation:
It is given that:
And we have to find the value of 
As per trigonometric identities, the relation between 
can represented as:
Putting 
in place of 
Because we are given
Putting value of cosine:
It is given that is in 2nd quadrant and value of sine is always positive in 2nd quadrant. So, the answer is.
Class B has the most consistant sleep because there is less of a difference between 6.87 and 3.65 than the other classes.
First find how much you've had. Make the fractions with similar denominaters: 1/3(2)=2/6, 1/2(3)=3/6, 5/6(1)=5/6. Now add the fractions: 2/6+3/6+5/6=10/6 or 1 4/6 or 1 2/3. Then add the whole numbers: 10+15+20+1=46. So you've had 46 2/3 oz now subtract that from how much you need: 64-46 2/3= 63 3/3-46 2/3=17 1/3. You still need 17 1/3 water :)
if you're talking about the whole number, 100.96. if you're referring to decimal place values; 96.70.
underline the digit that you round to
circle the digit to the right
five or more goes up
four or less stays the same
everything behind becomes a zero.
