Answer:
79.7°
Step-by-step explanation:
We resolve the speed of the plane into horizontal and vertical components respectively as 300cos75° and 300sin75° respectively. Since the wind blows due west at a speed of 25 miles per hour, its direction is horizontal and is given by 25cos180° = -25 mph. We now add both horizontal components to get the resultant horizontal component of the airplane's speed.
So 300cos75° mph + (-25 mph) = 77.646 - 25 = 52.646 mph.
The vertical component of its speed is 300sin75° since that's the only horizontal motion of the airplane. So the resultant vertical component of the airplane's speed is 300sin75° = 289.778 mph
The direction of the plane, Ф = tan⁻¹(vertical component of speed/horizontal component of speed)
Ф = tan⁻¹(289.778 mph/52.646 mph)
Ф = tan⁻¹(5.5043)
Ф = 79.7°
Answer = £6911
Compound interest of 5% means multiplying by 1.05 each year.
Let’s call the missing value x
To find x, we need to do:
(X) * 1.05 * 1.05 * 1.05 = 8000
So, to find x, divide 8000 by 1.05^3
Answer:
16
Step-by-step explanation:
Answer: The longest display is 47.75 inches longer than the shortest display.
Step-by-step explanation:
