In which quadrant is
located if coso is positive and cote is negative?

Three cylinders have a volume of 2836 cm^3. cylinder a has a height of 900 cm. cylinder b has a height of 225 cm. cylinder c has a height of 100 cm. find the radius of each cylinder. use 3.14 as an approximate for π

Is the square root of 4 plus the square root of 16 rational?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?