Answer:
5/4
Step-by-step explanation:
y2 -y1 -4-1=-5
x1 -x2 9-13=-4
Answer:
Step-by-step explanation:
This is an arithmetic sequence and the common difference = - 2
You might be a little puzzled by the minus sign in front of the two. You can look at the sequence for the answer. It is going down. A plus 2 would make it go up. Minus signs are always a bit tricky and you have to watch out what you do with them. But the rule is simple
- a minus common difference produces a sequence that goes down.
- a plus common difference produces a squence that goes up.
You know that this is an arithmetic sequence because the common difference can be found by adding or subtracting a number from the previous term to get to the next term.
A geometrice sequence would use multiplication or division to get from one term to the next.
N + (n+1) + (n+2) + (n+3) = 90
if n is the first number, then the next number is 1 more than n, the next number is 2 more than n, etc.
Simplify the above expression:
4n + 6 = 90
4n = 84
n = 21
n+1= 22
n+2 = 23
n+3 = 24
Answer:
Cystic fibrosis probability is remote in current case.
Step-by-step explanation:
Cystic fibrosis is the disease in which patient suffers lung and intestine clog due to mucus. There is chance of cystic fibrosis in children when one of parent has history of such a disease. If one parent has defective genes and other parent has healthy genes then there is very remote chances of this disease in child.
Let the number be n. Then 3n = 34.5, and n = 34.5/3 = 11.5.
Half of this is 5.75, or 5 3/4.
