Find a quarter of x (because 25% is 1/4 of 100%) and take it away (because we're decreasing) from the original number (x)
then half the answer
Hope this helps :)
Answer:
(6, -3)
Step-by-step explanation:
sorry, i don't know what you have to write in the blanks.
That is adjacent and huptonuse
soh cah toah
so that is cos
cos(x)=15/21
so tehrfor
cos⁻¹(15/21)=x
where cos⁻¹ means inverse not 1/cos
use your calculator to evaluate cos⁻¹(15/21) in degrees
it is about 44.4153 degres, rounded to 44 degrees
