Every day Brian takes 20 mg of a drug that helps with his allergies. His doctor tells him that each
hour the amount of drug in his blood stream
decreases by 15%.
How many mg of the drug are in his blood stream
after 1 hour. Explain how you found your answer.

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.

sina-sinb

cosb+cosa

tana-tanb

cos0+cos x pi/3

20tan

step-by-step explanation:

he answer is x=1x3 because x=1 to x=3

ur a slave imma whip you with my whip coon