What is square root of 399

Step-by-step explanation:

The easiest way to find this is to use a calculator, and the answer is 19.97498436.

As a fraction it is 31940/1599

you would have to sell 24 bracelets.

step-by-step explanation:

84/3.5 = 24

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