Asked by Jane
Please explain how to set this up and how to solve:
A school's rectangular athletic fields currently have a length of 125 yd and a width of 75 yd. the school plans to expand both the length and the width of the fields by x yards. What polynomial is standard form represents the area of the expanded athletic field?
A school's rectangular athletic fields currently have a length of 125 yd and a width of 75 yd. the school plans to expand both the length and the width of the fields by x yards. What polynomial is standard form represents the area of the expanded athletic field?
Answers
Answered by
Bosnian
A = Area
L = Lenght
W = Width
New lenght L = 125 + x
New width W = 75 + x
A = W * L
A = ( 125 + x ) * ( 75 + x )
A = 75 * 125 + 75 * x + x * 125 + x * x
A = 9375 + 75 x + 125 x + x ^ 2
A = x ^ 2 + 200 x + 9375
L = Lenght
W = Width
New lenght L = 125 + x
New width W = 75 + x
A = W * L
A = ( 125 + x ) * ( 75 + x )
A = 75 * 125 + 75 * x + x * 125 + x * x
A = 9375 + 75 x + 125 x + x ^ 2
A = x ^ 2 + 200 x + 9375
Answered by
PsyDAG
(x+125)(x+75) = Area
Answered by
Jane
I loved the way you broke it down and explained it to me in detail. What a great help!
Answered by
Anonymous
ancial Planning Suppose you deposit $1500 for college in a savings account that has an annual interest rate r (expressed as a decimal).At the end of 3 years, the value of your account will be 1500(1 +r)3 dollars.a.Rewrite the expression 1500(1 + r)3 by finding the product e.Fin 1500(1)( + r+ r).Write your answer in standard form.b .How much money is in the account after 3 yr if the interest rate is 3 % per year
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