Tính hợp lý nếu có thể:
a) A = 0,4(3)+0,6(2).\(2\frac{1}{2}-\frac{\frac{1}{2}+\frac{1}{3}}{0,5\left(8\right)}:50\frac{50}{53}\)
b) B = [0,(5).0,(2)]:\(\left(3\frac{1}{3}:\frac{33}{25}\right)-\left(\frac{2}{5}.1\frac{1}{3}\right):\frac{4}{3}\)
\(3\frac{1}{2}.\frac{4}{49}-\left[2,\left(4\right).2\frac{5}{11}\right]:\left(\frac{-42}{8}\right)\)
\(\left[0,\left(5\right).0,\left(2\right)\right]:\left(3\frac{1}{3}:\frac{33}{25}\right)-\left(\frac{2}{5}.3\frac{1}{3}\right);\frac{4}{3}\)
Tính
Tính
\(3\frac{1}{2}\cdot\frac{4}{49}\left[2,\left(4\right)\cdot2\frac{5}{11}\right]:\left(\frac{-42}{5}\right)\)
\(\left[0,\left(5\right).0,\left(2\right)\right]:\left(3\frac{1}{3}:\frac{33}{25}\right)-\left(\frac{2}{5}\cdot1\frac{1}{3}\right):\frac{4}{3}\)
tính :
\(M=\left[0,\left(5\right).0,\left(2\right)\right]:\left(3\frac{1}{3}:\frac{33}{25}\right)-\left[0,4.1,\left(3\right)\right]:1,\left(3\right)\)
Giúp mik vói
Tính:
a)\((-0,4)^2-\left(-0,4\right)^3.(-0,3)\)
b)\((1\frac{3}{4})^3-(\frac{13}{4})^2+(-1,234)^0\)
c)\((\frac{2}{3})^3-4.(-1\frac{3}{2})^2+(-\frac{2}{3})^3\)
d)\((-0,5)^5:(0,5)^4-(\frac{17}{2})^6:(\frac{17}{2})^5\)
a) \(5,5-|x-0,4|=-1\frac{1}{5}\)
b) \(\left(1-\frac{3}{4}|x|\right)^2=\frac{16}{25}\)
c)\(\left(0,1|x|-\frac{1}{2}\right)\left(0,5-|x|\right)=0\)
d) \(|3-\frac{1}{2}x|=|\frac{1}{3}x-0,75|\)
#giải hộ mk vs mk dndg cần gấp
\(0.45-|1.3-x|=0\)
\(|3x-5|-\frac{1}{7}=\frac{1}{3}\)
\(|x+\frac{3}{4}|+5=-2\)
\(\frac{-12}{x}=\frac{25}{-50}\)
\((2x+1).\left(x+\frac{1}{7}\right)=0\)
\(7^{2x}+7^{2x+2}=2450\)
làm hộ làm hộ :33
thực hiện phép tính :
a, \(\frac{0,4-\frac{2}{9}+\frac{2}{11}}{1,4-\frac{7}{9}+\frac{7}{11}}-\frac{\frac{1}{3}-0,25+\frac{1}{5}}{\frac{7}{6}-58+5+0,7}\)
b, \(\frac{\frac{1}{9}-\frac{1}{7}-\frac{1}{11}}{\frac{4}{9}-\frac{4}{7}-\frac{4}{11}}+\frac{\frac{3}{5}-\frac{3}{25}-\frac{3}{125}-\frac{3}{625}}{\frac{4}{5}-\frac{4}{25}-\frac{4}{125}-\frac{4}{625}}\)
c, \(\frac{\frac{3}{7}-\frac{3}{17}+\frac{3}{37}}{\frac{5}{7}-\frac{5}{17}+\frac{5}{37}}+\frac{\frac{1}{2}-\frac{1}{3}+\frac{1}{4}-\frac{1}{5}}{\frac{7}{5}-\frac{7}{4}+\frac{7}{3}-\frac{7}{2}}\)
Mong các bạn giúp đỡ nhé
Thực hiện phép tính :
\(|1,5-\sqrt{4}|.0,(3)-\sqrt{\frac{16}{25}}.\frac{1}{3}+\left(\frac{2^5.5^3+10^3}{3.2^4.5^3-5^4}\right).\frac{1}{3}\)
