Clara organizes cans in triangular piles, where each row has one less can than the row below. for example, the pile of 15 cans has 5 cans in the bottom row and 4 cans in the row above it.

(a) there are 3240 cans in a pile. how many cans are in the bottom row?

(b) (i) there are s cans and they are organized in a triangular pile with 'n' cans in the bottom row. show that n^2 +n - 2s= 0

(ii) clara has 2100 cans. explain why she cant organize them in a triangular pile.

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3

b mark me branliest thx

step-by-step explanation:

e^-kt = n/n0 = 0.79  

-kt = ln 0.79  

t = - ln 0.79/0.0001  

= 2357 years

step-by-step explanation:

the answer should be a. snail