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Alchen [17]
3 years ago
10

F(x) = 4x + 5; Find f(8)= Evaluate

Mathematics
1 answer:
e-lub [12.9K]3 years ago
3 0

Answer:

f(8)=4(8) +5

=32 +5

=37

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The length of a rectangle is 1 more yd than twice the width, and the area of the rectangle is 66 yd squared. Find the dimensions
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Width = 5.5yd  

Length = 12yd

<u>Explanation:</u>

Area of rectangle =  66yd^{2}

Let width of the rectangle = b ,  

So, length = 2b+1  

Area of rectangle = (length X width) - eqn 1

Putting the value of length and width in above equation 1,

66yd^{2} = (2b+1) X b\\66yd^{2} = 2b^{2} + b\\2b^{2} +b-66 = 0\\

On solving the equation we get,

b = 5.5yd

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l = 12yd

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