Plz me will give brainliest

1. explain how 2 x 10^-4 is the same as 2 ÷ 10^4 using expanded notation.

3. explain the difference between (-10)^2 and -10^2. what are the values of each expression?

4. explain the power of products property and give an example.

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to