On a sunny day, a 4.5m flagpole casts a shadow that is 5m long. A tree next to the flagpole casts a shadow 7m long. Which proportion can you use to find the tree’s height, h, in meters?

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

what is the approximate angle of acb if abc is 25cm and the length of segment bc is 15

step-by-step explanation:

4.

step-by-step explanation:

it have the same area.brainliest

1/2*qr*rs

step-by-step explanation: