Answer:

Step-by-step explanation:
we are given

Let's assume angle as theta

so, we get

now, we can use unit circle and find theta
and we get

So, solution is

Answer:
67.2
Step-by-step explanation:
5 + 7 = 12
6 * 12 = 72
72 - 4.8 = 67.2
Multiply 2nd equqation by -1 and add to first
5x+4y=22
<u>-3x-4y=-10 +</u>
2x+0y=12
2x=12
divide by 2
x=6
sub back
3x+4y=10
3(6)+4y=10
18+4y=10
minus 18 both sides
4y=-8
divide by 4
y=-2
(x,y)
(6,-2) is solution
Answer:
<h3>3117</h3>
Step-by-step explanation:

Difference between average temperature and highest recorded = 49.44
Highest - Average = 49.44 Let it be H - A = 49.44
H - (-34.44) = 49.44
H + 34.44 = 49.44
H = 49.44 - 34.44 = 15
Highest recorded = 15°C.