Insurance Agent sets Defender 1's insurance premium = 25, and Defender 2's insurance premium = 30. Defender 1 decided to purchase the insurance but not to make the protection investment.

Defender 2 decided not to purchase the insurance but to make the protection investment.

Attacker decided to attack Defender 1, and asked 55 as ransom.

It was a successful attack, and Defender 1 decided to pay the ransom.

she drove 134 miles

step-by-step explanation:

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

b). 4320 have a nice day

the correct answer is c