select the correct answer from each drop-down menu.
complete the statement.
if and θ is in quadrant iii, and .

cos2∅= -0.557

tan2∅= --1.49

Step-by-step explanation:

Given:

cos∅=-8/17

By trigonometric ratios:

as cos∅=adjacent/hypotenuse

hypotenuse= 17

adjacent=-8

Now finding perpendicular using Pythagoras theorem:

c2=a2+b2

17^2=(-8)^2+b^2

289-64=b^2

b^2=225

b=±15

b=-15 as ∅ is in third quadrant so both the opposite and adjacent sides be in 3rd quadrant

tan∅=opposite/adjacent

tan∅=-15/-8

sin∅=-15/17

Now finding cos2∅

cos2∅= 1-2sin^2∅

           =1 - 2(-15/17)^2

           =1 -450/289

            = -161/289

           =-0.557

finding tan2∅

tan2∅= 2tan∅/1-tan^2∅

         = 2(-15/-8) / 1-(-15/-8)^2

          = (15/4) / 1-225/64

           =(15/4) / (-161/64)

            = -240/161

             =-1.49 !

step-by-step explanation:

6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.