An airplane is flying 22° north of east at a speed of 810 km per hour. how fast is it moving to the north? options: a) 750 km per hour b) 810 km per hour c) 300 km per hour d) 0 km per hour

B or 810 km per hour

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

the solution is the point

step-by-step explanation:

we have

> equation a

> equation b

adds equation a and equation b

substitute the value of x in equation b to find the value of y

the solution is the point