Find the value of 'y'. y + 6 = 21?
You just do 21 - 6 Which is 15 Y=15
What is the value of (5i^3)^3?
125i^9 Basically you cube (raise to third power) 5, which is 125. And it is a rule that you must multiply the exponent if it is (a^b)^c Regardless of what numbers b and c (as long they are valid exponents), you have to multiply them. So in our case, it is i^9. Put them together and you'll get 125i^9
What is the value of √3 ?
1.732050807568877 Or rounded to 1.73
What is the value of 3 to the -2 power?
im not sure.. i think its -9 (I learned this today in math) u can check a calculator (a really good one) and press in : 3 ^ -2. (the ^ is near some wierd looking words above the numbers)
What is the absolute value of 3.1?
the absolute value of 3.1 is 3.1. if you have -3.1, then it would be changed to 3.1. if you are having math problem like these, here is the deal. when it says absolute value, it is basically saying the distance from zero. so the distance from -3 to 0 is 3. same thing goes with positive numbers. if the distance from 3.1 to 0, the number would be 3.1. basically, absolute value of a number is the distance from zero. hope this helped. if so, choose me as best answer :) thanks