Answer:
Integer that represents Melissa's location with respect to sea level: 
Integer that represents Brian's location with respect to sea level: 
Step-by-step explanation:
By definition, Integers can be negative, positive or zero.
Let be zero (
) the sea level.
According to the information provided in the exercise, you know that Melissa's location is at 27 meters above the sea level.
Therefore, you can conclude that the integer that represents her location with respect to sea level, is greater than zero (this means that it is positive).
Then, this is:
Brian's location is 21 meters below sea level.
This indicates that the integer that represents her location with respect to sea level is less than zero (it is negative).
Therefore, this is:
D. 
Por álgebra, recordamos los siguientes dos teoremas llamados teorema del signo para productos:
, 
(1)
, (2)
Basados en la información dada en la imagen y los teoremas descritos arriba, el producto del numerador debe ser negativo y el producto del numerador debe ser también negativo, más el resultado de la división debe ser positiva.
Por tanto, la opción D representa a la operación libre de errores.
The quotient is twice 405.5. Whenever dividing by .5 you multiply by 2 instead
C.)
Answer:
No they cannot.
Step-by-step explanation:
Hope this helps!
Good Luck!
:)
The frequency table is attached.
Since there were 30 people out of the 60 that received cold medicine, that means that 60-30=30 people did not.
Since 26 people had a cold longer than 7 days, this means 60-26=34 had a cold that was less than or equal to 7 days.
14 people had a cold longer than 7 days and received medicine; this means that 26-14=12 people had a cold longer than 7 days and did not receive medicine.
30-14=16 people received medicine and had a cold less than or equal to 7 days.
30-12=18 people did not receive medicine and had a cold less than or equal to 7 days.
