Answer:

Step-by-step explanation:
If you mean an improper fraction, then 
Answer:
154
Step-by-step explanation:
The area of a triangle is equal to 1/2
the base times the height.
1/2 times (base) times(height)
Substitute the values of the base b=22 and height h=14 into the formula for the area of a triangle.
1/2 times 22 times 14
Cancel the common factor of 2
Multiply
11 by 14
which will give u the area 154
Answer: 41.5 min
Step-by-step explanation:
This problem can be solved with the Radioactive Half Life Formula:
(1)
Where:
is the final amount of the radioactive element
is the initial amount of the radioactive element
is the time elapsed
is the half life of the radioactive element
So, we need to substitute the given values and find
from (1):
(2)
(3)
(4)
Applying natural logarithm in both sides:
(5)
(6)
Clearing
:
This is the time elapsed
It shows the SAS congruence theorem
Because an angle between the triangles are the same and the ratio of corresponding sides adjacent to the angles is the same