Solve for the missing measure. Round decimals to the nearest tenth.

a =

Question

Solve for the missing measure. Round decimals to the nearest tenth.

a =

anonymous · Answer

attachment

ivettef365 · Answer

use tan(65) = opp/adj

anonymous · Answer

so 8* tan65

ivettef365 · Answer

actually would be tan(65) = 8/a
then that is the same as a tan(65) = 8
                                        ------   --------
                                         tan(65)   tan(65)

so you have
a = 8 / tan(65)

anonymous · Answer

you lost me...

ivettef365 · Answer

ok, that is just algebra you have

tan(65) =     8       (opposite)
               ------
                   a        (adjacent)

ivettef365 · Answer

then multiply by a both sides then you have

         a . tan(65)  =    8
                               ----   . a
                                 a

then you have

            a.tan(65) = 8

ivettef365 · Answer

then to solve for a you need to divide by tan(65)
then you have

a = 8 / tan (65)

ivettef365 · Answer

now just use calculator to solve for "a"

anonymous · Answer

ok... so i just divide 8 and tan 65?

anonymous · Answer

im jst confused

ivettef365 · Answer

did you try to do it in the calculator ??

anonymous · Answer

3.7304612652399887426400495583965

anonymous · Answer

is it right? .... no idk

ivettef365 · Answer

yes, that is what I got, so you need to round to the nearest tenth

anonymous · Answer

so it would be  4

ivettef365 · Answer

to the nearest tenth, would be 3.7

anonymous · Answer

oops i rounded to the nearest whole number.... ok

anonymous · Answer

3.7