Ireally need 99 points a 9 foot ladder leans against a building the foot of the ladder is 3 feet away from the building if a 6-foot ladder is propped against the building at the same angle with the ground the foot of the new ladder would be how far away from the building

2'

Step-by-step explanation:

ladder, bldg wall n ground form a triangle

cuz the two ladders are at the same angle

the two triangles are similar

their sides are in the same ratio:

9:6 = 3:x where x is the distance from bldg of the 6' ladder

x=3*6/9

= 2'

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

47

step-by-step explanation: