Step-by-step explanation:
7x + 8y = -12
8y=-12-7x
y=
Since the aim of experiment is to check the effectiveness of a new medication, for a better conclusion and results, Ethan must perform some statistical testing i.e. hypothesis testing.
Based on results from that hypothesis testing Ethan can decide if there is a significant decrease of sneezing in the patients of treatment group or not.
However, before performing any such testing, Ethan can also observe the data and conclude on basis of his observations i.e. if considerable number of patients in treatment group show reduced signs of sneezing then the new medicine is effective in reducing sneezing.
Answer:y=-3x+7
Step-by-step explanation:y+5=-3(x-4)
=>y+5=-3x+12
=>y=-3x+12-5
•°•y=-3x+7.
Answer:
There are 8 males in the class and 42 females.
Step-by-step explanation:
This question can be solved using a system of equations.
I am going to say that:
x is the number of females.
y is the number of males.
Class of 50 students
This means that 
The number of females is 2 more than 5 times the number of males.
This means that 
So, finding y, the number of males:
Females:
There are 8 males in the class and 42 females.
Because the value of x is raised to the power of 3, x^3 is a cubed number.
and 64 is 4^3
This makes the polynomial a sum of cubes.
