Solve the mathematical puzzle.

s is a three digit number.
determine the digits of s from the clues.

all the digits are odd.
the last two digits add to make ten.
the first and last digits add to make eight.
the first two digits add to make twelve.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry.how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.