September 2018 1 20 Report

1. Oblicz 0,8:2^{2} + \sqrt{0,81}

2. Znajdź liczbę 15% liczy 2^{2} * (-5)^{2} - \frac{(-10)^{2}}{ \frac{1}{2}}

3. Napisz wyrażenie: iloczyn kwadratu sumy liczb a i b przez sumę kwadratów liczb a i b.

4. Oblicz wartość liczbową wyrażenia (a - 3) - (a +1) (a-1) + (a + 2)^{2}, dla a = -1

5. Rozwiąż równanie (x - 3) (x + 5) =x^{2}

6. Znajdź zbiór rozwiązań nierównosci: \frac{4x}{3} - \frac{2}{5}\geq x

7. Podaj wsółrzędne punktów przecięcia się wykresu funkcji f(x) = x+ \frac{1}{2} z osiami współrzędnych.

8. Oblicz pole koła opisanego na trójkącie równobocznym o boku 6cm.

9. Oblicz wartość liczbową wyrażenia: (3x - 1)^{2} + 9x - (3x - 1)(3x + 1) 2\sqrt{2}

10. Rozwiąż równanie: 4 - \frac{x}{3} = \frac{2x}{6}

11. Podaj najmniejsza liczbę całkowitą spelniającą nierówność: (x + 4)^{2}\geq 5 - x(3 - x)


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