How many 5-digit numbers (numbers with 5 digits) can you make with the leftmost digit is 8 and the rightmost digit is 2 with the possibility of repeating the digits? 998

999

1000

1001

i will take them

step-by-step explanation:

is means division by fractions

step-by-step explanation:

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584