Which is the independent variable in an investigation ? Group of answer choices The temperature of the Bunsen Burner used The one the scientists measures The size of the beaker used The one the scientists changes

The one the scientists changes

Explanation:

Independent variables in an experiment are the variables that the experimenter controls or changes in order to produce different results. Independent variables directly effect the dependent variable. The given example the dependent variable can be option d that is the one that scientist changes

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

e

explanation:

there is no change in the electric potential energy as it is in rest on both conditions.