Jose spins the spinner 8 times. in those 8 spins, the arrow never lands on 3. based on this information, should jose be concerned that the spinner is unfair?
shoul he be concerned since it was not a large amount of spins?
note: spinner is numbered 1-4

step-by-step explanation:

vyv6vycyctxrd4ff6fg yr x5dc v6y555 vyuvu

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