Answer:
√(r+n)/5=m
Step-by-step explanation:
r=5m²-n
adding n on both sides
r+n=5m²-n+n
r+n/5=m²
taking square root on both sides
√(r+n)/5=m
Answer:
the same way Pythagoras Theorem
and sorry for the hand writing
Answer:
the answer is C
Step-by-step explanation:
Answer:

Step-by-step explanation:
The given equation is 
Differentiate both sides with respect to x

Take y and 1 to other sides of the equation

Factor out dy/dx from the left hand side of the equation

Divide both sides by (x+1)

Answer:
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<u>So</u><u>,</u><u> </u><u>the</u><u> </u><u>perimeter</u><u> </u><u>is</u><u> </u><u>4</u><u> </u><u>times</u><u> </u><u>1</u><u>0</u><u>,</u><u> </u><u>i.e</u><u>.</u><u>,</u><u> </u><u>4</u><u>0</u>