A dance student wants to know the favorite type of dance class for students at The Dance Academy. She surveys each student in her ballet class. In which way could the results of her survey be most improved? She could sample an equal number of students in each type of dance class.
She could sample a proportional number of students in each type of dance class.
She could sample one student in each type of dance class.
She could sample one teacher from each type of dance class.
Mark this and return

A. She could sample an equal number of students in each type of dance class.

Step-by-step explanation:

The answer is A. because all the other ones are not equal, and some are leaned more towards one side.

Hope this helps! :)

step-by-step explanation:

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