The expression, 16x² + bx + 49, is a perfect square trinomial. Give the value of b:
Factor the expression as a perfect square:

Step-by-step explanation:

16x^2+bx+49

The square of 16 is 4 and 49 is 7

(4x+7)^2 is 16x^2+56x+49

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet

the correct answer is 1: 2

step-by-step explanation:

hope this your welcome : )