Answer: 80
Step-by-step explanation:
X
(
x
+
1
−
ı
)
(
x
+
1
+
ı
)
x(x+1−ı)(x+1+ı)
Answer:
Velocity (against wind) = 1,890 / 3 = 630 mph
Velocity (with the wind) = 1,890 / 2.5 = 756 mph
Plane speed (still air) = 630 + wind speed
Plane speed (still air) = 756 - wind speed
Adding both equations equals
2 * Plane speed (still air) = 1,386
Plane Speed = 693 mph
Source: https://www.1728.org/veloccal.htm
Step-by-step explanation:
ANSWER
EXPLANATION
The given equation is
We divide through by 4 to obtain;
This can again be written as:
This is the equation of a circle centered at the origin with radius 4 units.
The graph is shown in the attachment.