Answer:
Therefore m∠ B is 42.1°
Step-by-step explanation:
Given:
In Δ ABC
AB = 15 = c
AC = 18 = b
∠ C = 34°
To Find:
∠ B = ?
Solution:
In Δ ABC We have Sine Rule as
Substituting the given values we get


Therefore m∠ B is 42.1°
Answer:
The altitude is changing at a speed of 200 √3 km/hr
Step-by-step explanation:
Here, we want to know how far the altitude of the plane is changing
we are told that the airplane makes an angle of 60 degrees with the ground
So therefore , the rate of change of its altitude will be ;
sin 60 = x/ 400
x = 400 sin 60
x = 400 * √3/2
x = 200 √3 km/hr
the original cost was $111.60.
Answer:
D) 8
Step-by-step explanation:
3x - 7 - 2x + 5 = 6
3x - 2x = 6 + 7 - 5
x = 8
Note: 6 + 7 -5 = 13 -5 = 8
3+2 x20
3+2=5
5x20=
100
Hope this helped.