Gaby decorates her room with red and white colored lights. she bought x red lights at $0.65 each and 12 white lights at $1.42 each. The average cost of the lights in the room is $0.95. choose on equation to model the situation. A) 12 + 0.65x =9.5x
B) 0.65x + 3 = 0.95(x + 12)
C) 0.65x + 1.42 = 0.95x
D) 0.65x + 17.04 = 0.95(x + 12)

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

whats the question?

step-by-step explanation:

place r′ so that qr′ is parallel to the tangent.

now we get that ∠r′py=∠pr′q, where y is on the tangent, on the opposite side of p from x.

also, because of the symmetry, ∠r′py=∠qpx.

finally, note that no matter where we place r, as long as it's on the correct arc, we have ∠prq=∠pr′q.

stringing all these equalities together, we end up with ∠prq=∠qpx.

this picture will show how its going to look like.

hope this by jack monhen