80/2=40 во второй день
80+40=120 в 2 дня в мсте
120/4=30 кг
Ответ получили 30 кг изюма!!!
Ответ:
.
Пошаговое объяснение:
![\sqrt{1,08}=?\\\\f(x)=\sqrt{x}\\\\\underline {f(x_0+\Delta x)\approx f(x_0)+d(f(x_0))}\\\\x_0=1\; ,\; \; \Delta x=0,08\; \; \Rightarrow \; \; \; x_0+\Delta x=1+0,08=1,08\\\\f(x_0)=\sqrt1=1\\\\\underline {d(f(x_0))=f'(x_0)\cdot \Delta x}\\\\f'(x)=(\sqrt{x})'=\frac{1}{2\sqrt{x}}\\\\f'(x_0)=\frac{1}{2\sqrt{x_0}}=\frac{1}{2\sqrt1}=\frac{1}{2}\\\\d((f(x_0))=\frac{1}{2}\cdot 0,08=0,04\\\\f(1,08)\approx \sqrt{1,08}=1+0,04=1,04](https://tex.z-dn.net/?f=%5Csqrt%7B1%2C08%7D%3D%3F%5C%5C%5C%5Cf%28x%29%3D%5Csqrt%7Bx%7D%5C%5C%5C%5C%5Cunderline%20%7Bf%28x_0%2B%5CDelta%20x%29%5Capprox%20f%28x_0%29%2Bd%28f%28x_0%29%29%7D%5C%5C%5C%5Cx_0%3D1%5C%3B%20%2C%5C%3B%20%5C%3B%20%5CDelta%20x%3D0%2C08%5C%3B%20%5C%3B%20%5CRightarrow%20%5C%3B%20%5C%3B%20%5C%3B%20x_0%2B%5CDelta%20x%3D1%2B0%2C08%3D1%2C08%5C%5C%5C%5Cf%28x_0%29%3D%5Csqrt1%3D1%5C%5C%5C%5C%5Cunderline%20%7Bd%28f%28x_0%29%29%3Df%27%28x_0%29%5Ccdot%20%5CDelta%20x%7D%5C%5C%5C%5Cf%27%28x%29%3D%28%5Csqrt%7Bx%7D%29%27%3D%5Cfrac%7B1%7D%7B2%5Csqrt%7Bx%7D%7D%5C%5C%5C%5Cf%27%28x_0%29%3D%5Cfrac%7B1%7D%7B2%5Csqrt%7Bx_0%7D%7D%3D%5Cfrac%7B1%7D%7B2%5Csqrt1%7D%3D%5Cfrac%7B1%7D%7B2%7D%5C%5C%5C%5Cd%28%28f%28x_0%29%29%3D%5Cfrac%7B1%7D%7B2%7D%5Ccdot%200%2C08%3D0%2C04%5C%5C%5C%5Cf%281%2C08%29%5Capprox%20%5Csqrt%7B1%2C08%7D%3D1%2B0%2C04%3D1%2C04)
Проверим на калькуляторе:
1 1\2 : ( 1\2 - 1\3 )=9
1\2 - 1\3 = 3\6 - 2\6 = 1\6
1 1\2 : 1\6 = 3\2 : 1\6 = 3\2 x 6\1 =9
1)3849Кг. 2)2650м. 3)9275г. 4)257ч.