Answer:
Probability of certain event P(E) = 1
Step-by-step explanation:
An event or program A that is likely to occur has a probability of 1, which indicates that there will always be an event or a program.
Probability of certain event P(E) = 1
For this case we have the following polynomials:

Adding the polynomials we have:

Rewriting we have:

Therefore, the result of the sum is:

Answer:
the sum of the polynomials is:

option 2
x= number of boys in the club because it is unknown.
x + 7= the number total number of girls in the club.
Answer:
Two angles are called complementary if their measures add to 90 degrees, and called supplementary if their measures add to 180 degrees. ... For example, a 50-degree angle and a 40-degree angle are complementary; a 60-degree angle and a 120-degree angle are supplementary
Answer:
F=ma where m=mass and a=acceleration
F=7kgx2.5m/s^2
F=17.5N