Answer:
blep
Step-by-step explanation:
Higher then the levels of ten and lower of the x-axis through the ten starting with negative ten to y axis 10
Since 20 is a factor of 40, the least common denominator of 3/20 and 9/40 is 40.
Answer:



Step-by-step explanation:
Given
Let the three sides be represented with A, B, C
Let the angles be represented with 
[See Attachment for Triangle]



What the question is to calculate the third length (Side B) and the other 2 angles (
)
Solving for Side B;
When two angles of a triangle are known, the third side is calculated as thus;

Substitute:
,
; 




Take Square root of both sides



<em>(Approximated)</em>
Calculating Angle 

Substitute:
,
; 




Subtract 180 from both sides


Divide both sides by -144



Take arccos of both sides



<em>(Approximated)</em>
Calculating 
Sum of angles in a triangle = 180
Hence;



Make
the subject of formula


Answer:
-40 %
Step-by-step explanation:
((y2 - y1) / y1)*100 = your percentage change
(where y1=start value and y2=end value)
((75 - 125) / 125) * 100 = -40 %
The percentage change from 125 to 75 is -40 %