In a recent year, 33.1% of all registered doctors were female. if there were 57,700 female registered doctors that year, what was the total number of registered doctors?

1)-1

2)-3

3)1

4)-3

5)2

Step-by-step explanation:

1) 2 to the power(x2+2x)=2 to the power negative one

2) so x2+2x+1=0

3) (x+1)2=0

4) x=-1

1) 2 to the x-3= 2 cubed times x+1

2) x-3=3x+3

3) 2x=-6,x=-3

1) 5/2-k/2=3-k

2) 5-k=6-2k

3) k=1

1) 3 to the x+3= 3 cubed times 2x+6

2) x+3=6x+18

3) 5x=-15,x=-3

1) 5 to the x-2= 5 to the 0

2) so x-2=0

3) x=2