X²+20=0
x=±√(-80)/2
x=±4i√5/2=2i√5
factorised it is then
(x+2i√5)*(x-2i√5)
Answer: 
Step-by-step explanation:
Answer: Betsy is incorrect.
Step-by-step explanation:
The area of a trapezoid is a+b/2 multiplied by h.
First, we should do 5+8/2= 6.5
Next, we multiply 6.5 with 4 because 4 is the height of the trapezoid.
6.5 times 4= 26
Betsy thought the answer was 52, but it is 26 so she is incorrect.\
I hope this helps, may god bless you! :)
To find the cost of one stamp, divide the total cost by the total number of stamps bought:
9.20 / 20 = 0.46
Each stamp cost 46 cents.
You want to get m by itself and the easiest way to do that is to add 18 to both sides, so you’re left with 16=-1m. Then you divide 16 and -1m, and your answer should be m=-16
