SOLUTION: I need some help with finding the value of the following: I will need to type out the words cuz computers dont have the signs used, 1.exponent3 square root -64 2.exponent4 sua

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I need some help with finding the value of the following: I will need to type out the words cuz computers dont have the signs used, 1.exponent3 square root -64 2.exponent4 sua      Log On


   

Question 88372: I need some help with finding the value of the following: I will need to type out the words cuz computers dont have the signs used,
1.exponent3 square root -64
2.exponent4 suare root 27
3.4+suare root 7 divided by 7
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
1.exponent3 square root -64
Perhaps you mean root%283%2C-64%29+. This means the cube root of -64. To find the cube root of ANYTHING, you must first know the perfect cubes. Essentially, you need to ask yourself, "what can I cube in order to get -64?" The answer is -4.

2.exponent4 suare root 27
Do you mean root%284%2C+27%29+? I don't think so! I think you copied the problem wrong. My guess is that you meant root%283%2C+27%29+, which means what number can you cube and end up with 27? The answer, of course, is 3.

3.4+suare root 7 divided by 7
Do you mean %284+%2Bsqrt%287%29%29%2F7??? If so, the only way to find the value of this is by using a calculator. If this is your question, the calculator gives you .949393 approximately.

R^2