Answer:
Step-by-step explanation:
The nth term of an arithmetic sequence is given by the formula:
Where
a is the first term
d is the common difference
a is given as 12
To find d, we subtract any term from the term after it. So
d = 16 - 12 = 4
Now, the explicit formula for nth term is:
Answer:
h
Step-by-step explanation:
Answers :
2.) A. n = 5.2
3.) C. c = –7
Explanations:
2.) – 12.168 ÷ – 2.34 = 5.2
3.) 56 ÷ –8 = –7
Answers : A and D
Step - by - step explanation :
tip : when finding constant of proportionality it's always Y divided by X
A = what is 22.5 divided by 3 ? 7.5 ( now multiply 7.5 by the next X [ 4 ] )
what is 7.5 x 4 ? 30 ( and since on the graph it also says 30 then you can assume this one has a proportional relationship )
B = what is 12 divided by 3 ? 4 ( now multiply 4 by the next X [ 5 ] )
what is 4 x 5 ? 20 ( and because the graph says 25 then you know it's NOT a proportional relationship )
C = what is 8.5 divided by 2 ? 4.25 ( now multiply 4.25 by the next X [ 5 ] )
what is 4.25 x 5 ? 21.25 ( and because the graph says 22.5 then you know it's NOT a proportional relationship )
D = what is 10 divided by 2 ? 5 ( now multiply 5 by the next X [ 3 ] )
what is 5 x 3 ? 15 ( and since on the graph it also says 15 then you can assume this one has a proportional relationship )
( sorry it took me so long to write this )
