What are the coordinates of P?
(-a,0) (0,b) (0,-b) (-b,0)

(0,-D)

Step-by-step explanation:

Without plotting the points indicate the quadrant in which they will lie.

(i) ordinate is 5 and abscissa-3

(ii)abscissa is-5 and ordinate is-3

(iii)abscissa is-5 and ordinate is-3

(iv)ordinate is 5 and abscissa is 3

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

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i