The sine is positive in second quadrant so sin 20 = sin (180-20) = sin 160.
The sine is negative in the third quadrant so sin (180+20) = -sin 20
so sin 20 = - sin 200
The sine is negative in fourth quadrant so sin 340 = -sin 20 and sin 20 = - sin 340.
Right on top of 'a'. They'll look like one single point on the number line.
Answer:
I need more explanation to be able to answer this question.
Step-by-step explanation:
1,6,11,15,18,20,21
Answer:
The value of S(50) is 22 in means the amount of sodium iodine in the mixture is 22 when 50 milliliters of the 20% solution used.
Step-by-step explanation:
It is given that a chemist working on a flu vaccine needs to mix a 20% sodium-iodine with a 60% sodium-iodine to obtain a 70-milliliter mixture.
Let x be the number of milliliters of the 20% sodium-iodine.
Number of milliliters of the 60% sodium-iodine = 70-x
The amount of sodium iodine in the mixture is 20% of x and 60% of (70-x).
Therefore,the required function is .
Substitute x=50 in the above equation.
The value of S(50) is 22 in means the amount of sodium iodine in the mixture is 22 when 50 milliliters of the 20% solution used.
Terminating decimal
rmember that all numbers can be put over 1 and that is a fraction
ex
1/1=x
3/1=3
π/1=π
so therefor
0.25=0.25/1
if yo want to make the top number equal a whole number
multiply top and bottom by 100 to move 0.25 two decimal places to the right to make it ahwole number
0.25/1 times 100/100=25/100=1/4
answer is 1/4
steps:
1. find how many decimal placees the number goes to (ex. 0.25=2 places 0.2=1 place, 0.2345=4 places)
2. put the decimal over 1 (so if the decimal is x then do x/1)
3. find a fraction that is 10/10 such that the number of zeros one the top should be equal to the zeroes on the bottom, the number of zeros on the top should be equal to the number of decimal places from step 1
4. multiply the fraction (x/1) from step 2 by the fraction from step 3
5. simplify the resulting fraction
