73.71 because 63*.17=10.71, so 63+10.71=73.71
Answer: 1. 3x=15. 2. is correct
3. X=15
Step-by-step explanation:
Let length is x and breadth is y.
The formula for the area and the perimeter of a rectangle is given by :
A = xy
P = 2(x+y)
Here, A = 8 mi² and P = 16 miles
Putting all the values,
xy = 8
y=8/x ......(1)
2(x+y) = 16
x+y = 8 .....(2)
Put equation (2) in equation (1) as follows :
When we solve, we get :
x = 6.82 miles, 1.17 miles
Put the value of x in equation (1)
When x = 6.82 miles,
y = 8/6.82
y = 1.17 miles
When x = 1.17 miles,
y = 8/1.17
y = 6.82 miles
Hence, the dimension of the field is 6.82 miles and 1.17 miles.
<h3>
Answer: Invalid</h3>
Explanation:
The conclusion should be due to the hypothetical syllogism rule (similar to the transitive rule).
You can make a truth table to show that the premises and can both be true at the same time, but the conclusion is false. Whenever you have all true premises and a false conclusion, then the argument is invalid. True premises must lead to a true conclusion.