А). 3,143*1,2= 3,7716 м = 377,16 см
б). 377,16*2= 754,32 см
в). 377,16*3,2= 1206,912 см
1)57,75,47,45,54,74, 2) 9090,9009,9900,
(1/4)²=1/4 * 1/4 = 1/16
(3/8)²=9/64
(5/6)²=25/36
(2/7)²=4/49
(1 целая 1/2)²=(3/2)²=9/4=2 целых 1/4
(4 целых 1/9)²=(37/9)²=1369/81=16 целых 73/81
(6 целых 2/3)²=(20/3)²=400/9=44 целых 4/9
(1/2)³=1/2*1/2*1/2=1/8
(2/3)³=8/27
(1/5)³=1/125
(4/9)³=64/729
(1 целая 1/3)³=(4/3)³=64/27=2 целых 10/27
(2 целых 1/4)³=(9/4)³=729/64=11 целых 25/64
(3 целых 1/2)³=(7/2)³=343/8=42 целых 7/8
<span>(8х6+2)х7=350.............................................................</span>