Pomocy matematyka zad 6
Dam naj

1)
[tex]\sqrt{x+3}=10\\\\x+3=10^2\\\\x+3=100 \ \ |-3\\\\\boxed{x=97}[/tex]
2)
[tex]\sqrt{4y}=0,2\\\\4y=0,2^2\\\\4y=0,04 \ \ |:4\\\\\boxed{y=0,01}[/tex]
3)
[tex]\sqrt[3]{z+5}=-1\\\\z+5=(-1)^3\\\\z+5=-1 \ \ |-5\\\\\boxed{x=-6}[/tex]
4)
[tex]\sqrt[3]{\frac{t}{10}}=5\\\\\frac{t}{10}=5^3\\\\\frac{t}{10}=125 \ \ |\cdot10\\\\\boxed{t=1250}[/tex]