As the operations manager for american airlines you have decided to invest in 10 new jets for the company's fleet. there are three outcomes for this investment. what is the expected return on investment using the information below? outcome probability return1. 50 .152. 30 .253. 20 .10

the answer is 31.27mph

6.5

step-by-step explanation:

you said it was in the question

~courtney

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

i think it might be a but you might want a second opinion