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A mirage is a frequent optical occurrence for desert travelers, which appears as a distant body of water. Which of the following best explains this phenomenon?
Note: The mirage featured in this picture is known as an inferior mirage.
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Alice arranges 3 coins in a row. You cannot see them, and need to guess the sequence—heads or tails—of the 3 coins. You make three guesses, and Alice responds as follows:
Guess | Response |
H H H | "You got only 1 coin correct." |
T T H | "You got only 1 coin correct." |
H T T | "You got only 1 coin correct." |
What is the correct sequence?
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I'm thinking of a number.
What is the number?
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10 identical circles are stacked in a pyramid shape, where A and B are centers of two of the circles. A line is drawn through A and B, dividing the figure into 2 areas: red on the left and and blue on the right.
What is the ratio of the red area to the blue area?
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A kite is divided into four regions by two line segments that connect the midpoints of opposite sides. Is the total blue area equal to the total orange area?
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