Answer:
x=35, y=21. (35, 21).
Step-by-step explanation:
x+y=56
x-y=14
------------
2x=70
x=70/2
x=35
35+y=56
y=56-35
y=21
Answer: the last one
Step-by-step explanation:
Because it has a similar number in the x variable. If it didn’t have the same number in the x variable it would be a function.
Consider the first term on the left side.

Then the sum of the three terms on the left is

Answer:
No, it is not reasonable
Step-by-step explanation:
Writing 9/10 and 4/8 as fractions out of 100, and then as decimals
9/10 = 90/100 = 0.9
4/8 = 1/2 = 50/100 = 0.5
0.9 - 0.5 = 0.4
Not 0, like Kevin estimated
Answer:
,Recursive formula is :

Step-by-step explanation:
To find a1 we put n=1 in the given Geometric sequence :



Common difference = 2÷
= 5.
r=5.
Recursive formula for a geometric sequence is

Recursive formula is :
