Mini-Tests130_files/MATH%20130%20LN%20Week%207%20Fall%202021.pdf 33 / 33 90% + Two cryptography experts are deciphering a computer code. To do this, part of it is to minimize 7 pts the product of a positive number x and a negative number y, given that the positive number is exactly 6 greater than the negative number. a) Find the two numbers b ) What final product is the expert looking for? a) The two numbers are: y = b) The product is: xy = c) Do you believe the experts found the minimum? How can you show/proof that the experts or you found the minimum, you can't check all positiveegative pairs of number with the difference 6. 7 pts 5) A physical law states that the speed of blood that is x centimeters from the central axis of an artery of radius r is given by (( x ) = k(r 2 - x2 ) where k is a positive constant. a) Find the relevant interval. b)Where is the speed of the blood greatest? Write for a reader and answer with a complete sentence. 55.F Clear ~ D O