25
^ means "to the power of" F ^ 2 + 4 = 5 ^ 2 F ^2 +4 = 25 F ^2+4 -4 = 25 -4 F^2 = 21 F = (square root of 21)
5 to the power of 4 is 625. 5 to the power of 2 is 25. 625 times 25 is 5,624. I don't feel like doing 5,624 times 5,624.
2 to the 2 power = 4 -3 to the 2 power = 9 4 to the 2 power = 16 You don't indicate what to do to the 4, but 9 + 16 = 25
-3
25
^ means "to the power of" F ^ 2 + 4 = 5 ^ 2 F ^2 +4 = 25 F ^2+4 -4 = 25 -4 F^2 = 21 F = (square root of 21)
5 to the power of 4 is 625. 5 to the power of 2 is 25. 625 times 25 is 5,624. I don't feel like doing 5,624 times 5,624.
25%4 = 0.254 = 0.00390625 = 0.39% approx
2 to the 2 power = 4 -3 to the 2 power = 9 4 to the 2 power = 16 You don't indicate what to do to the 4, but 9 + 16 = 25
-3
25^5=9765625 25x25=625 25^2 625x625=390625 25^4 390625x25=9765625 25^5
The power of a lens is the reciprocal of its focal length in meters. So, a lens with a focal length of 25 cm would have a power of +4 diopters (1/0.25 = 4).
52*4= 25 * 4= 100
25
5^(-4) = 1/5^(4) = 1 / (25 x 25) = 1 / 625 = 0.0016
(4/5)-2 = (5/4)2 = 25/16