Describe how the laws of exponents and scientific notation are used and applied in the real world today

Піf x = y and y= z, which statement must be true? оа. -x = -2 b. x= z ос. —x = 2 od. 2= x

If f(x) = -5x + 1 and g(x) = x3, what is (gºf)(0)? enter the correct answer

Given a normal distribution with µ =50 and σ =4, what is the probability that 5% of the values are less than what x values? between what two x values (symmetrically distributed around the mean) are 95 % of the values? instructions: show all your work as to how you have reached your answer. don’t simply state the results. show graphs where necessary.