Select true or false to tell whether the following disjunctions are true or false. Use the truth table if needed. 5-3 = 15 or 7 + 5 = 20
True
False

9514 1404 393

  False

Step-by-step explanation:

The disjunction evaluates to ...

  false or false

In order for an "or" statement to evaluate to True, at least one of the elements needs to be true. That is not the case here, so the disjunction is false.

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