Question

4-Calcule:
a)
$- 8 - \sqrt{16 } =$
B)
$- 8 + \sqrt{16} =$
c)
$- 5 + \sqrt[3]{8} =$
D)
${3}^{2} - \sqrt{1} =$
E)
$( - 9 - 3) {}^{2} =$
F)
$\sqrt{ \frac{64}{81 } } =$
G)
$\sqrt{ \frac{169}{225} } =$
H)
$\sqrt{2.25}$

Answer 1

a)-8-√16=
-8-4=
-12
b)-8+√16=
-8+4=
-4
c)-5+³√8=
-5+2=
-3
d)3²-√1=
9-1=
8
e)(-9-3)²=
-12²=
144
f)√64/81=
8/9
g)√169/225=
13/15
h)√2.25=
√50≈
7,07