How do you model -9-(-4) with interger chips

Explanation:

Start with 9 negative chips, for a value of -9.

Take away (subtract) 4 of the negative chips. This is modeling - (-4).

You will be left with 5 negative chips.

  -9 - (-4) = -5

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Each negative chip in this scenario models -1. The actions you're doing with the chips are full equivalent to the actions you would do for the subtraction problem 9 - 4 = 5, except that the numbers (chips) are negative, not positive.

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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