(2)^-2 ?
http://www.google.com/search?source=ig&hl=en&rlz=1G1GGLQ_ENUS362&q=%282%29%5E-2
already tried that. google calc. isn't always necessarily correct...but thanks for the attempt!
Since I'm not a math tutor, I checked with one of our experienced math tutors, and he agreed that Google is correct about this problem.
BobPursley [8:06 PM]: exactly right> 2^-2= 1/2^2=1/4
you must have been reading my problem wrong though...? I'm saying 2 to the -2 power
We understand and read your problem correctly. I copied and pasted your problem into the Google search box. Are you disputing both Google and BobPursley?
Check with your teacher.
This site explains negative exponents.
http://www.mathsisfun.com/algebra/negative-exponents.html
To evaluate (2)^-2, we need to understand the concept of exponents. An exponent tells us how many times a number is multiplied by itself. In this case, the base number is 2, and the exponent is -2.
To calculate (2)^-2, we can follow these steps:
1. Start by remembering that a negative exponent implies reciprocal. For example, if we have a number raised to the power of -2, it is the same as saying 1 divided by that number raised to the power of 2.
2. So, (2)^-2 is equivalent to 1 / (2)^2.
3. Now, simplify the expression (2)^2. This means 2 multiplied by 2, which results in 4.
4. Therefore, (2)^-2 equals 1/4 or 0.25.
So, (2)^-2 is 0.25 or 1/4.