All 120 people in an office building were asked how they traveled to and from the office. the frequency table below represents the results of this survey. (walked- 32) (biked- 11) (bus- 45) (subway- 28) (car- 4) question; cecil takes the subway to the office and works with 13 people, not counting himself. what is a good estimate of the number of people i’m his office that cecil rides the subway with?

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

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1