156*10-7 = 0.0000156 or as 1.56*10-5 in scientific notation
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∙ 2012-10-11 14:23:417 to the power of 5 is written as 75
7 to the second power
7 x 7 x 7 x 7 x 7 x 7
If you mean 7x^3, you would write 7x*x*x . If you mean (7x)^3, you would write x*x*x*7*7*7. Exponential form just means you write it in the expanded form. For instance, 7 squared really means 7 times 7. So instead of writing 7^2, you would write 7*7
72 is "seven to the second power" or "seven to the power two" or "seven squared", and when it is calculated it is "forty nine".
156x107 is 1.56x109
7 to the power of 5 is written as 75
7 to the second power
7 to the power of 3 is: 7 x 7 x 7 = 343 Another way to write it is: 7^3 = 343
7x7x7x7x7x7x7x7.
-16807
10-7 = 0.0000001
You would write 7x7x7x7x7x7 as 7^6 (the ^ means to the power of, 7^6 is the same as 76. You would do this because there are 6 sevens there, and 7^6 means 7 times t times 7 times 7 times 7 times 7.
3.6x10 to the power of 7
7*106 = 7,000,000
7x10^7
76 = 117,649.