I believe your answer would be 4.35
Answer:
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Step-by-step explanation:
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51/4 ÷ 22/7
change ÷ to × and flip the second fraction
51/4 × 7/22
multiply
357/88 or 4.0568
the answer is not here
I think you meant to say

and not "4 times y" on the right side (which would lead to a complex value for y when x = 0). Note that when x = 0, the equation reduces to ln(y) = 0, so that y = 1.
Implicitly differentiating both sides with respect to x, taking y = y(x), and solving for dy/dx gives


Note that when x = 0 and y = 1, we have dy/dx = 3.
Differentiate both sides again with respect to x :

No need to simplify; just plug in x = 0, y = 1, and dy/dx = 3 to get

The longer side is at first 7cm and the shorter is 2cm.
So since 7cm(the longer side)×5=35cm then the shorter side(2cm) multiplied by 5 should give you the right answer.