Answer:
a=2,b=-3 and c=-2
Step-by-step explanation:
(2x+1)(x-2)=0
2x²-4x+x-2=0
2x²-3x-2=0
Comparing it with the standard form of quadratic equation ax²+bx+c=0 we get
a=2,b=-3 and c=-2
Answer:
390 
Step-by-step explanation:
We know that the top is a rectangle triangle, we only have two of the tree sides and the one that is missing is the hypotenuse. The formula to find it is 
If we put the values we know it would be



= 13
So now we have the lenght missing.
The area of the top and bottom is the same and we found it by the formula
=
= 30, that is the area of just one triangle, multiply by 2 and that is the area of top and bottom = 30 x 2 = 60
The area of a rectangle is base x height, we have three rectangles.
First one: 13 x 11 = 143
Second one: 5 x 11 = 55
Third one: 12 x 11 = 132
The sum of the areas would be = 60 + 143 + 55 + 132 = 390 
Answer:
40
Step-by-step explanation:
i hope it helps
thankyou
No problem the answer is 34w i thinks o but make hru look like it