4. The elves at the North Pole could make 23 gifts per minute. How many gifts could they In make in 2 hours?

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*