Chronineans lose 150 nm of enamel from their central incisors (front teeth) each year. a new drug promises to reduce the loss by 23+_nm +_ 4nm.

a. how many chronineans are needed to test the effectiveness of the drug?

b. how effective would you say that the drug is?

definition: a circle is the  set of all points in a plane that are equidistant  from a given  point  called the center of the circle. we use the symbol ⊙ to represent a circle. the a line segment from the center of the circle to  any point  on the circle is a radius of the circle.

step-by-step explanation:

i googled it and this is what i got i don't know how it is. sorry.

y do u put "subscirbe to ence" on a app for ppl who need with their work?

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

the workers who do no drive has no reasonable reason to buy gasoline due to they don't have anything to use it for