Answer:
1) The value of is 12.
2) The length of the diagonal is 49.
Step-by-step explanation:
1) If the glass is a rectangle, then both diagonal must have the same length, that is, the following equation must be solved:
(1)
We need some algebraic handling to determine the value of :
The value of is 12.
2) If we know that , then the length of the diagonal (
) is:
The length of the diagonal is 49.
Answer:
Option d.
Step-by-step explanation:
we know that
If a ordered pair is a solution of an inequality, then the ordered pair must be satisfy the inequality
Verify each case
case a)
we have
Substitute the value of x and the value of y in the inequality and then compare the results
-----> is not true
therefore
the ordered pair is not a solution
case b)
we have
Substitute the value of x and the value of y in the inequality and then compare the results
-----> is not true
therefore
the ordered pair is not a solution
case c)
we have
Substitute the value of x and the value of y in the inequality and then compare the results
-----> is not true
therefore
the ordered pair is not a solution
case d)
we have
Substitute the value of x and the value of y in the inequality and then compare the results
-----> is true
therefore
the ordered pair is a solution
