Algebra Warmups
Evaluate the following expression:
\[123456789^{2} - (123456788 \times 123456790).\]
If you use a calculator whose precision is not strong enough to answer this question, then you will answer this problem incorrectly.
by
Wenn Chuaan Lim
\[ \large\color{green} 6^{\color{blue} 6} + \color{green} 6^{\color{blue} 6} + \color{green} 6^{\color{blue} 6} + \color{green} 6^{\color{blue} 6} + \color{green} 6^{\color{blue} 6} + \color{green} 6^{\color{blue} 6} = \color{green}6^ {\color{brown}a} \]
If \(\color{brown} a\) satisfies the equation above, what is the value of \(\color{brown} a\)?
by
Adrian Gonzalez
What is the value of
\[ \large \sqrt{1\text{%}}\, ? \]
by
Heder Oliveira Dias
\[ \large \frac { 1 }{ { 2 }^{ 3 } } +\frac { 1 }{ { 2 }^{ 6 } } +\frac { 1 }{ { 2 }^{ 9 } } + \cdots = \, ? \]
by
K. J. W.
If 7 cows need 7 days to eat 7 grass fields, how many days would it take for 5 cows to eat 5 grass fields?
by
Viri Yanto