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Excel in math and science
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Excel in math and science
Master concepts by solving fun, challenging problems.
It's hard to learn from lectures and videos
Learn more effectively through short, conceptual quizzes.
Our wiki is made for math and science
Master advanced concepts through explanations,
examples, and problems from the community.
Used and loved by 4 million people
Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.
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\[ \begin{array} { l l l l }
& A & A \\
& A & A \\
& & A \\
& & A \\
+ & & A \\
\hline 1 & 0 & 0
\end{array} \]
What is \(A\)?
Excel in math and science
Master concepts by solving fun, challenging problems.
It's hard to learn from lectures and videos
Learn more effectively through short, conceptual quizzes.
Our wiki is made for math and science
Master advanced concepts through explanations,
examples, and problems from the community.
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by
Chung Kevin
When a goldfish puffs out an equal amount of air each time he mumbles under water, how do the bubbles form?
A. The bubbles gradually get larger as they get closer to the surface.
B. The bubbles always stay the same size throughout the ascent.
C. The bubbles gradually shrink as they reach the surface.
D. None of the above. The bubbles will randomly vary in size.
Excel in math and science
Master concepts by solving fun, challenging problems.
It's hard to learn from lectures and videos
Learn more effectively through short, conceptual quizzes.
Our wiki is made for math and science
Master advanced concepts through explanations,
examples, and problems from the community.
Used and loved by 4 million people
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including olympiad champions, researchers, and professionals.
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by
Worranat Pakornrat
What are all the possible perimeters of an isosceles triangle with sides of lengths 5 and 16?
Excel in math and science
Master concepts by solving fun, challenging problems.
It's hard to learn from lectures and videos
Learn more effectively through short, conceptual quizzes.
Our wiki is made for math and science
Master advanced concepts through explanations,
examples, and problems from the community.
Used and loved by 4 million people
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including olympiad champions, researchers, and professionals.
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by
Ashok Dargar
In the star, what is the yellow angle?
Excel in math and science
Master concepts by solving fun, challenging problems.
It's hard to learn from lectures and videos
Learn more effectively through short, conceptual quizzes.
Our wiki is made for math and science
Master advanced concepts through explanations,
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by
Chung Kevin
The diagram consists of three nested squares. The lengths of the line segments are \( AB = 4, BC = 3,\) and \( CD = 2 \).
What is the area of the smallest square?
Excel in math and science
Master concepts by solving fun, challenging problems.
It's hard to learn from lectures and videos
Learn more effectively through short, conceptual quizzes.
Our wiki is made for math and science
Master advanced concepts through explanations,
examples, and problems from the community.
Used and loved by 4 million people
Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.
Your answer seems reasonable.
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by
Amogha Pokkulandra