Answer:
15i and 4i
Step-by-step explanation:
i is an imaginary number also shown as
.
Since we have 
, thats 15* . Substitute for i and we get 15*i or 15i.
We do the same for 
. This is 4* or 4*i or 4i.
An easy way to do this is to take the negative inside the square root like 
, take the absolute value -6 absolute value=6 and times it by i. So now it becomes 6i
Answer:
Speed is the rate of change in position of an object, regardless of direction of travel. Walk forward or backward at 2 meters per second, and your speed is just that: 2 m/s. Velocity is speed in the context of direction. Say you were walking backward again; your velocity is negative 2 m/s, although your speed is still positive.
Step-by-step explanation:
Answer:
Dependent variable → bacteria cell increase or population
Independent variable → time variable
Step-by-step explanation:
An independent variable has direct effect on the dependent variable. The independent variable can stand on it own and it is not change by the other variable you are trying to measure. The independent variable have direct effect on the dependent variable.
A dependent variable is actually the variable being tested in an experiment. The dependent variable is actually dependent on the independent variable.
The dependent variable in this scenario is the bacteria cell increase or the bacteria cell multiplication. The bacteria cell increase is dependent on the time . The time variable is the independent variable as it can stand on it own .
Dependent variable → bacteria cell increase or population
Independent variable → time variable
Two negatives equals a positive:
Add the numerators and keep the denominator:
