In this case, trial and error is probably the easiest:
22 = 4, 23 = 8, 24 = 16 yes!
A more genral answer is:
the power that you want is log(16)/log(2) where the logarithm is calculated to any base (10 or e , or indeed any other).
16 can be expressed as a power of 2 by determining the exponent to which 2 must be raised to obtain 16. In this case, 2^4 equals 16, so 16 can be written as 2^4.
2 16/25 = 2.64
16 = 7f + 2 14 = 7f 2 = f
16 to the power (1/2) is the same as the square root of 16 - that is, 4.16 to the power (1/2) is the same as the square root of 16 - that is, 4.16 to the power (1/2) is the same as the square root of 16 - that is, 4.16 to the power (1/2) is the same as the square root of 16 - that is, 4.
8
To solve 8 to power 25, you either need the mathematical tables or a scientific calculator.
2 16/25 = 2.64
16 = 7f + 2 14 = 7f 2 = f
16 to the power (1/2) is the same as the square root of 16 - that is, 4.16 to the power (1/2) is the same as the square root of 16 - that is, 4.16 to the power (1/2) is the same as the square root of 16 - that is, 4.16 to the power (1/2) is the same as the square root of 16 - that is, 4.
8
PLUS 2
To solve 8 to power 25, you either need the mathematical tables or a scientific calculator.
(-10) to the power of negetive 2
7x+2-2=16-27x = 147x/7 = 14/7x = 2
What is 9 raised to the zeroth power
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
-5/2 - (-3/7)
20