Question

дам 15 баллов..........

Answer 1

#1.
а) 453-600= -147
б) -2,54-(-7,3) = -2,54+7,3= 7,3-2,54=4,76
в) -3,3-(-2,41) = -3,3+2,41= - (3,3-2,41) = -0,89
г) 4 7/16 - 9 5/8= - ( 9 5/8 - 4 7/16) =
= -(5 10-7/16) = -5 3/16

#2. a) -m= -7,19+15
-m= 7,81
m= -7, 81

б) 5 7/11 - k= 6 5/33
-k= 6 5/33-5 7/11= 1 5-21/33= 38-21/33=17/33
k= -17/33

#3.
√(-5-9)²+(2-8)²= √(-14)²+(-6)²= √196+36=√232=√4•58=2√58

4. |n-1,9|=3,14

n-1,9=3,14
n=3,14+1,9
n1=5,04

n-1,9= -3,14
n= -3,14+1,9
n= -1,24