The answer is (32/100)-(8/25 )
Step-by-step explanation:
remember, tan = sin/cos.
of course, one solution is x = 0. sin(0) = 0, tan(0)=0).
for the general solution we look at x <> 0.
3×sin(x) = 2×tan(x) = 2×sin(x)/cos(x)
3 = 2/cos(x)
3×cos(x) = 2
cos(x) = 2/3
x = 48.1896851...°
800+16x=720+21x
80+16x=21x
80=5x
X=16
So 16 hours :)
Area = 40x40 = 1600<span>km²
answer
</span><span>D.
1,600 km²</span>
