Write an equivalent expression to show the relationship of multiplication and addition. 10 + 10 + 10

is the correct answer to the given question .

Step-by-step explanation:

Equivalent expression are the same expressions although they can appear tiny bit differently.In the given question we have to express  10 + 10 + 10 in the multiplication form

Therefore

i. e=30

Which is same as

=30

so

3 * 10 is the correct answer

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