Pls

g = 118 degrees

h = 62 degrees

k = 98 degrees

m = 82 degrees

Step-by-step explanation:

180-118=62

180-98=82

g = 118(Opposite to other one)

h =  62 (180 - 118)

m =  82 (180 - 98)

k = 98 (Opposite to other one)

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