Question

1.8*(4-2а)+0.4а-6.2,если А=5/32

Answer 1

1.8*(4-2a)+0.4a-6.2=7.2-3.6a+0.4a-6.2= - 3.2a + 1 = -3.2 * 5/32 + 1 =
= - 0.5 + 1 = 0.5

Answer 2

= 7,2 - 3,6A + 0,4A - 6,2 = 1 - 3,2A 
A = ( 5/32 ) 
1 - ( 16/5 ) * ( 5/32 ) = 1 - ( 1/2 ) = 1/2 = 0,5 
ОТВЕТ 0,5