Answer:
the first one
Step-by-step explanation:
Think of it this way. If it needs to be greater than -11, that means there is some kind of restraint. that would be in this situation, its under a square root. if you plug in -11, it should equal 0, so it has to be x+11 under square root. The second one wouldn't work since that would make it square root of -22 and thats imaginary, same thing with all the others, when you plug in -11, the last 3 would come negative. the first one is the only one that cancels the negative and gives you 0
N could be equal to 9,10,11, etc
Question:
A rectangle has a height of 2x^4 and a width of x^2+8x+15. Calculate its area.
Answer:
Step-by-step explanation:
Given
Required
Determine the area of the rectangle
This is calculated as:
Answer:
-2x + 7/5
Step-by-step explanation:
(7-10x)/5
= 
+ 
= -2x + 7/5
