Very nice app for a quick fun day at a local restaurant and the staff was super helpful when they had been busy so there is a little extra seating
3>1
17>16
100>31 решение надеюсь успела
S=πR²
D=2R⇒R=4.4/2=2.2 дм
S=3.14 *(2,2)²=3.14*4,84≈15,2 дм²
Ответ:15,2 дм²
Log3(x-2)+log3(x+6)=2ОДЗ: х-2>0 и x+6>0 решая систему из этих двух неравенств получаем: х>2 log3 ((x-2)*(x+6)) = log3 9(x-2)(x+6)=9x^2 - 2x + 6x - 12 - 9 = 0x^2 + 4x -21 = 0D = 16 + 84 = 100x1 = (-4+10)/2 = 3x2 = (-4-10)/2 = -7 учтем ОДЗх=3 Ответ:3