Step-by-step explanation:
sin∅=-3/4 in 4 quadrant which sine is negative there
using soh cah toa
sin=opp/hyp
where our opp=-3 and our hyp=4
using pythagoras theorem
hyp²=opp²+adj²
(4)²=(-3)²+adj²
16=9+adj²
16-9=adj²
adj²=7
adj=√7
from soh cah toa
cos∅=adj/hyp
cos∅=√7/4
The circle equation is (x-5)’2+(y-3)’2=16
50 percent of the group randomly selected that are male and female
Answer:
<h2>1</h2>
Step-by-step explanation:
I hope this helps
The attached diagram is a useful tool for working mixture problems. It shows the desired mix is
.. 1 kg of 30% gold
.. 3 kg of 10% gold