9514 1404 393
Answer:
h(3) = 12
Step-by-step explanation:
Put the value where the variable is and do the arithmetic.
h(t) = 5(t -1) +2
h(3) = 5(3 -1) +2 = 5(2) +2 = 10 +2
h(3) = 12
What in tarnation is this
Answer:
18.559 km/min
Step-by-step explanation:
Horizontal and vertical velocities of the plane:
Vx = 19*cos(35) = 15.5639
Vy = 19*sin(35) = 10.898
Location of plane after 3 minutes will be:
X-component = Vx * 2 = 15.5639 * 2 = 31.1278 km
Y-component = 12 + (Vy * 2) = 12 + (10.898 * 2) = 33.796 km
Angle to the radar station (measured relative to ground) will be given as;
Angle = tan^(-1) (Y-component/X-component) = tan^(-1) (33.796/31.1278) = 47.35°
Thus;
Velocity component along the line between the radar and the plane:
Vt = 19 * cos (47.3534° - 35°)
Vt = 19 * cos 12.3534
Vt = 19 * 0.9768
Vt = 18.559 km/min
Answer:
it is c option 50 degree it must