222 = 42 = 16
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2 to the second power is the same as 22, which is 2 x 2 or 4.
(-2)2 = (-2)*(-2) = +4
It is 1/2 of a second
6 meters per second. Explanation: After 1 second = 2 meters per second. After 2 seconds = 4 meters per second. After 3 seconds = 6 meters per second.
2 times 3 to the second power equals to 2x9 or 18 2 to the second power times 3 equals to 4x3 or 12 therefore the least common factor is 2.