30me i don't understand this.

abcd is a trapezoid with midsegment (ef). if ad=5x-11, ef=3x+7, bc=2x+7, how many units in length is (ef)?

Step-by-step explanation:

we know that

In this problem, the length of the mid-segment EF is the sum of the two bases divided by 2

so

substitute the given values

Solve for x

Find the length of EF

substitute the value of x

2 x^2 -3x+p

sum of roots = 3/2

let other root be x

3+ x = 3/2

x= 3/2 - 3 = -3/2

product of roots = p/2

3× -3/2 = p/2

-9 = p

⭐⭐

{3 + i, 3 - i, 3, -1}

step-by-step explanation: