Astudent needs to calculate the density of some liquid. the student knows that density is equal to mass divided by volume. name two tools the student could use to measure the liquid in order to calculate its density. explain what a student should measure with each tool.

A measuring cylinder and a weighing balance.

Explanation:

The density of a liquid is equal to mass divided by its volume, therefore we need to find two things: mass and the volume.

To find the mass, a container should first be weighed empty and then with the liquid inside it. The difference in their weights will be the mass of the liquid.

For the volume, a measuring cylinder or a beaker can be used to measure it.

Dividing these values of the mass by the volume will give the density of the liquid.

emily ruth's annual premium is $1058.50

step-by-step explanation:

emily ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.

from the given table,

for females, the age of a male 3 years younger should be used.

so, we have to check for 24 year male for 20 year endowment.

it is 42.34 for every $1000 face value.

for a face value of $25000,

it is 25 * 42.34 = $1058.50

∴ emily ruth's annual premium is $1058.50

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west