Elementary Equations 1. iron (26)
= 4! + √4 2. zirconium (40)
= √9!! /(9+9) 3. scandium (21)
= (√8 + 8)! - √8 + (8/8) 4. germanium (32)
= (9 - 9/9) x (√9 + 9/9) 5. arsenic (33)
= 7 x 7 - 7 - 7 - ((7 + 7) / 7) 6. astatine (85)
= (8 + 8/8) x (8 + 8/8) + √8 + 8
There may be better solutions using fewer numbers. Favorite Subjects 1.
Brian's favorite topic is ZOOLOGY
The unscrambled words are: COUGAR
Kelly's favorite topic is VAULT - T + CANE + O = VOLCANO 3.
Jacob's favorite topic is SQUARE ROOT
. Astronomical Mix-Up 1.
The planets and their suns, from coldest to hottest: Diana Neutron (coldest) Persephone Salanar Dionysus Kazul Apollo Betelgeuse Vulcan Beta Centauri (hottest) 2.
The planets and their suns, in order of discovery: Argus Heria (first) Sphinx Hibrid Cerberus Hadesi Medusa Gorgone Hydra Lernea (last) Super Series
The missing numbers are shown in red:
You can compute the missing numbers as:
However, there is a more elegant interpretation. Each row describes a regular polygon and its angles. For instance, 6 stands for a hexagon, whose angles add up to 720°. Each corner of a regular hexagon forms a 120° angle, and the exterior angles are 60°, as shown at right.
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