Well since there was 560 students the it was 560/560. now that 50 got selected the total portion would be 560/6
2/3 ÷ (-5/6)
When dividing fractions, all you really have to do is multiply the first fraction by the second fraction's reciprocal.
Remember, a reciprocal is the fraction/whole number flipped.
Ex : 4/6 turns into 6/4
So, the reciprocal of -5/6 is -6/5
Therefore, our new equation looks like this :
2/3 × -6/5
Multiply the numerators with the numerators, and the denominators with the denominators :)
Numerators : 2 × -6 = -12
Denominators : 3 × 5 = 15
SO, our answer is -12/15
Simplify this.
-4/5
~Hope I helped!~
Answer:A
Step-by-step explanation:
You use the equation:
m= (y2-y1) ÷ ( x2-x1)
m= (12-9) ÷ (2-1)
m= 3÷1
m= 3
Answer:
A 
Step-by-step explanation:
From the graph you can see that the period of the function is
Now the period of the function 
is
Thus,
and the expression for the function is
