Scientific notation iready need pls

The correct notation should be 50 because:

1x10^21 = 1000000000000000000000

5x10^22 = 50000000000000000000000

Thats only 50 times bigger

I hoped this helped and have a great night hun :)

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it

a

step-by-step explanation: