Describe how the relative density of a salt solution can be determined using the hydrometer

it has to be b, about 97 percent.

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle