a regular pentagon-based pyramid has 5 faces which are equilateral triangles the perimeter of it's net is 70cm what is the perim
1 answer:
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Answer:
<h2><em><u> 42.8 in</u></em></h2>Step-by-step explanation:
Step one:
given data
we are told that the expression for the depth of a lake after x years is given by
Required
The value of y when x= 4
Step two:
substitute the value of x in the expression to get y
<em><u>After 4 years the depth will increase by 42.8 in</u></em>