1.5 and 3/2. 1.5 because 1/2 is equal to 0.5. 3/2 because it can be converted into an improper fraction
Answer:
<u>Work Done = 27.66 Joules</u>
Step-by-step explanation:
The work done is:

Where
F is the fore
d is the distance moved
is the angle
The force is "4"
The distance is the distance from (1,7) to (8,10)
The distance is the square root of change in y coordinates, squared and sum of change in x coordinates, squared. Hence, distance is:

The angle is gotten by the formula:

So, now:

Work Done = 
<u>Work Done = 27.66 Joules</u>
Answer:
Observational Study
Step-by-step explanation:
Because she stands by the front door and records each student
Answer:
Rational
Step-by-step explanation:
A number is rational if it can be expressed as a fraction. Because -0.1254 can be expressed as the fraction –627/500, it is rational.