Can you help me, please?​

5x-8=90

5x=90+8

5x=98

x=98/5

x=19.6

5(19.6)-8

98-8

90

4(19.6)+26

78.4+26

104.4

hence both lines are not perpendicular

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.