It means <span>9 is not an element of T. hope it helped</span>
Add the two bases together, divide by 2 then multiply by the height.
8+6 = 14
14/2 = 7
7x5 = 35
The area is 35 square Feet
The answer would be c because 1-5-7 is the same as 5-8
5x^2+8x+3=0
factor
(5x+3) (x+1)=0
using the zero product property
5x+3 =0 x+1 =0
5x=-3 x=-1
x=-3/5 x=-1
First you want to find a multiple that's very close to 28. It's 24, so subtract 28-24 which is 4. 4 biscuits are left.
Hope that helped:)