Your answer would be 4.
If we substitute in x = -8 and y = -4 into the expression, we get:

This then becomes:
=
= 4.
I hope this helps!
Answer:
Step-by-step explanation:
1,
-10,20,-40,80,...
common ratio=20/-10=-2
it is a geometric sequence.
2.
15,-5,-25,-45
common difference=-5-15=-20
it is an arithmetic sequence.
Hello!
This can be written as
(x) + (x + 1) + (x + 2) + (x + 3) + (x + 4) = 270
Add all the values
5x + 1 + 2 + 3 + 4 = 270
Combine like terms
5x + 10 = 270
Subtract 10 from both sides
5x = 260
Divide both sides by 5
x = 52
So the numbers are 52, 53, 54, 55, 56,
Hope this helps!
Answer:
Step-by-step explanation:
Given that cesar left the college traveling 12 mph. Then, 4 hours later, Gabriel left traveling the same direction at 24 mph.
Before Gabriel started Cesar would have travelled for 4 hours
So distance travelled by Cesar in 4 hours 
Thus Cesar is ahead of Gabriel by 48 miles
Difference of speed 
So to catch Cesar time required = 48/difference in speed
= 4 hours
It will take 4 hours.