Quick Computing Company produces calculators. They have found that the
cost, c(4), of making x calculators is a
quadratic function in terms of %.
The company also discovered that it
costs $45 to produce 3 calculators, $257
to produce 7 calculators, and $792 to
produce 12 calculators,

step-by-step explanation:

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(3x-8) or (3x+8)

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