1. To <span>Calculate the resultant speed of the plane, you need to find the speed of the air, add it to the plane speed, then find the resultant using trigonometry.
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The velocity of the plane:
east=400 knots
The velocity of the air
50knots north east = 50/√2 north + 50/√2 east
The resultant speed would be:
total speed^2= east^2 + north^2
total speed= √(400+50/√2)^2 + (50/√2)^2
total speed= √(189534.254 + 1250)
total speed= 436.8 knots
2. To count the direction of the plane, you need to find the total speed of x(east/west) and y(north/south) axis separately then use tan formula.
east speed= 400knots + 50/√2 knots= 435.35 knots
north speed= 50/√2knots= 35.35 knots
tan a= opposite/adjacent
tan a = north speed/ east speed
tan a= 35.35/ 435.35
tan a=0.0812
a= 4.6 degrees
Answer:
The school can donate $816 to charity.
Step-by-step explanation:
If there are 408 tickets sold and 1/2 of them are adult
408 * 1/2 = 204
There are 204 adult tickets sold
For every adult ticket sold they donate $4.00 to charity
204 * 4 = $816
The school can donate $816 to charity
Answer:
the answer is D
Step-by-step explanation:
good luck!
EXAMPLE OF FUNCTIONS:
f(x) = 3x+2
f(x) = ∛(x²-5x+3)
f(x) = ax³+bx²-c
EXAMPLE OF <span>RELATION:
x</span>²+y²=r² (Circle)
x²/a² + y²/b² = 1 (ellipse)
y = √(x+5) - 3 (parabola opening right/left)
Answer:
t = -1
c = 6
s = 8.2 or 8 1/5 (same thing just different notation)
Step-by-step explanation:
3(t+4) = 9
3t + 12 = 9
3t = -3
t = -1
-(c-6) = 0
-c + 6 = 0
-c = -6
c = 6
-10(s+4) = -122
-10s - 40 = -122
-10s = -82
10s = 82
s = 82/10 = 8.2 or 8 2/10 or 8 1/5