Question

Will Fan and Medal!!!!!!!!!!!!

Answer 1

The area of a rectangle field is given by the trinomial t^2 - 4t -45. The length of the rectangle is t+5. What is the expression for the width of the field?

A.) t-9
B.) t-5
C.) t-11
D.) t-7

Answer 2

Area = length x width

so...
t^2 - 4t -45 = ( t + 5) x width
width = (t^2 - 4t -45)/(t+5)

or u just need to factorize t^2 - 4t -45
t^2 -4t - 45 = t^2 - 9t + 5t - 45
= t( t - 9) + 5( t - 9)
= ( t + 5) x ( t - 9)
= length x width

so width = ?

i guess u wont have any problems :)

Answer 3

Width would be t-9 correct

Answer 4

thanks a million