Does the Dell Inspiron 17 5770 Support Hyperthreading Technology?

Solution
If it has an Intel CPU then yes it most likely supports HT if it's an AMD no it does not have HT since it's Intel proprietary technology but will have SMT (simultaneous multi threading) which is the equivalent technology that allows for more than one thread of execution per CPU core
According to the online manual you can find that by accessing the BIOS (Link Removed) and looking at the Processor information > HT Capable option (Link Removed).
 
If it has an Intel CPU then yes it most likely supports HT if it's an AMD no it does not have HT since it's Intel proprietary technology but will have SMT (simultaneous multi threading) which is the equivalent technology that allows for more than one thread of execution per CPU core
 
Solution
This was not very hard:
Your machine: Dell Inspiron 17" 5770
Your CPU: 8th Gen Intel Core i5-8250U processor

My guess was that this, as a mobile i5 had a dual core, and Hyper threading, so I looked it up @ Intel.

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Intel® Hyper-Threading Technology ‡Yes

This video explains Hyper-Threading: