Answer:
3 km
Step-by-step explanation:
Arc length formula: s = rФ, where Ф is the central angle in radians.
Here the arc length is s = (4 km)(135π/180) = 3 km
If angle 5 is 78 degrees then angle 2 is 102
The answer is 8. I explain it to you?
Answer:
The center is at (0,0)
The vertices are at ( (
±2 sqrt(2),0)
foci are (
±sqrt(5),0)
Step-by-step explanation:
3x^2 + 8y^2 = 24
Divide each side by 24
3x^2 /24 + 8y^2/24 = 24/24
x^2/8 + y^2 /3 = 1
The general equation of an ellipse is
(x-h)^2/ a^2 + (y-k)^2 / b^2 = 1
a>b (h,k) is the center
the coordinates of the vertices are (
±a,0)
the coordinates of the foci are (
±c,0), where ^c2=a^2−b^
2
The center is at (0,0)
a = sqrt(8) = 2sqrt(2)
The vertices are at ( (
±2 sqrt(2),0)
c = 8 - 3 =5
foci are (
±sqrt(5),0)
Answer:
E,A,C,B,D
Step-by-step explanation:
make the denominator 12 and multiply e.g.3
