Evaluate the factorial expression. 9!/(9-2)!
1 answer:
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Let us calculate the area of the walk.
Since the width of the walk is 3 feet, and the walk will be placed all the 4 sides,
Length of the plot including walk = 20 + (2 × 3) = 20 + 6 = 26 feet.
Breadth of the plot including walk = 30 + (2 × 3) = 36 feet.
Area of the plot including walk = 26 × 36 square feet.
Area of the plot = 20 × 30 square feet.
Area of the walk = (26 × 36) - (20 × 30)
= 936 - 600
= 336 square feet.
= square yards
= 37.3 square yards
Cost of the walk per square yard = $12.25.
Therefore, total cost of the walk = 12.25 × 37.3 = $456.92.
Answer:
The length of side XZ should be greater than 10 and lesser than 60.
Step-by-step explanation:
In triangle XYZ ,
As
The length of side XY = 25 mm
The length of side YZ = 35 mm
Range of the third side can be computed when we already know the two sides of the triangle.
If subtracting , the 3rd side would have to be more than 10. Else 3rd side can not be made as two smaller legs will not meet.
and
If adding , the 3rd side would have to be less than 60. Else 3rd side will reach further than the the other two sides could reach.
Therefore, the length of side XZ should be greater than 10 and lesser than 60.