Hello,
y=x²+10x+11
y=x²+x-7
==>x²+10x+11=x²+x-7
==>9x=-18
==>x=-2
Sol={(-2,-5)}
Answer:
540°
Step-by-step explanation:
The sum of the interior angles of a polygon is:
(n-2)*180
where n = number of sides
Here you have :
(5 - 2)*180 = 540°
Answer:
d < -5
Step-by-step explanation:
Okay, so the equation is -5(d-2)>35
First we have to use distributive property to get rid of the parenthesis.
we do -5(d) --> -5d
then, -5(-2) --> 10
So now we just redo the equation---
-5d + 10 > 35
now you have to isolate d, the variable
First, to isolate you have to get rid of 10. Subtract 10 on both sides.
-5d + 10 > 35
- 10 -10
----------------------
-5d > 25
Then you have -5d > 25. You have to do the opposite operation again to make the d by itself, so you divide -5 on each side.
-5d > 25
----- -----
-5 -5
-5d/-5 is d because the -5's cancel out. 25/-5 is -5. Now, you have to flip the equation because when working with inequalities, you have to flip the symbol.
SO,,, the answer is
d < -5
Hope this helps!!
-Ketifa
Answer:
Better deal will be to take money after one year because there will be a profit of $1400 - $1060 = $340
Step-by-step explanation:
It is given that there is two option either you take $1400 after one year or $100 now
It is given that you can invest $1000 at a rate of 6% interest
So interest in one year 
So amount after 1 year = $1000+$60 = $1060
So better deal will be to take money after one year because there will be a profit of $1400 - $1060 = $340