Answer: Matthew Boulton's partnership with James Watt provided the financial capital for the development of a steam
engine.
Step-by-step explanation:
The impact of the partnership between Matthew Boulton and James Watt on the development of the steam engine was that it led to the provision of the capital that was required to develop the steam engine.
Matthew Boulton was the one that financed James steam engine and also introduced it. Due to the bankruptcy of John Roebuck, he joined hands with Watt in the business.