Does is have a total perimeter of the triangle? If not, the closest you can get is by simplifying.
2x+3x-1+4x+5
9x+4
The margin of error decreases with an increased sample size and increases with an increase in confidence level.
Answer:
286cm²
Step-by-step explanation:
Let the parallel sides be 12cm and 10cm
Height h = 26cm
Area of a trapezium = 1/2(a+b) * h
Area of a trapezium = 1/2(12+10)* 26
Area of a trapezium = 1/2(22)*26
Area of a trapezium = 11 * 26
Area of a trapezium = 286cm²
Hence the area of the tiles is 286cm²
If the length is X
X+X+X = 9X+6
3X=9X+6
-6X=6
X=-1
but because length can't be negative X=1
Answer:
x=-1 y=1/2
Step-by-step explanation:
do you need the step by step?
