Use the Matlab rref command on a suitable augmented matrix to solve the equation in (i) for x. Describe in words the gross production (in millions of $) of each sector of the economy that are needed to satisfy the given demand d.

Write a method replacekey in the minheap class with the following signature: public void replacekey(integer oldkey, integer newkey) the method will replace the first occurrence of oldkey with the newkey, and restore the min-heap property after the change. if the oldkey does not exist in the heap, the method prints an appropriate message and returns without changing the heap. example: suppose our binary heap object (bh) has the following keys: *** 4 6 7 32 19 64 26 99 42 54 28 then the method call: bh.replacekey (oldkey integer(54), newkey integer(2))

Designing a mobile web page is a little different from designing a regular web page. name at least three features that should be considered when designing a website that is mobile phone-friendly, and briefly explain why they are important.

In the lab, which of the following displayed a list of all installed services and included a description of the service, the current state, and whether the service started automatically or manually? a. the services manager b. the applications summary c. the recommended services d. list the safe services list