Answer:
n=-1
Step-by-step explanation:
First you add 5 to both sides an you would get -15n=15
Next divide by -15 on both sides and get n=-1
The answer is 6/14 , this should be correct because it has 14 sections which makes it smaller than the rest!
+ + + + + +
4 is positive or + and so is 2
hope it helps
Answer:
A = 99 cm²
Step-by-step explanation:
The area (A) of a triangle is calculated as
A = 
bh ( b is the base and h the perpendicular height )
Here b = 18 and h = 11 , then
A = × 18 × 11 = 9 × 11 = 99 cm²
LW = 45
L + 2W = 19
L = 19-2W
substituting for L :-
W(19-2W) = 45
-2W^2 + 19W = 45
2W^2 - 19W + 45 = 0
W = 5 or 4.5
If W = 5, L = 9
If W = 4.5, L = 10
So there are 2 possible answers.
