if the first and last terms of an arthemetric are 5 and 27 respectively and the series has a sum of 192 then the number of terms in the series is

step-by-step explanation:

this is not possible to solve with the info given.   you need at least an one angle somewhere.

it would take 7/10 of an hour too fill the pool.

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