If the Milky Way Formed Stars at Approximately a Constant

question 83

Multiple Choice

If the Milky Way formed stars at approximately a constant rate over the last 14 billion years,what fraction of the M-type stars that ever formed in it can still be found as main-sequence stars today? Note that M-type stars have a mass of approximately 0.5 M_⨀.

• A)10 percent
• B)33 percent
• C)50 percent
• D)75 percent
• E)100 percent

---

Definitions:

Primarily Personal

This term typically pertains to expenses or activities that are mainly for personal benefit, and therefore, not deductible for tax purposes if related to business.

Net Loss

The result when a company's expenses exceed its revenues during a specific period, indicating negative profitability.

Schedule E

A form used by the IRS for reporting income and loss from rental property, royalties, partnerships, S corporations, estates, trusts, and residual interests in REMICs.

Net Income

The profit of a company after all expenses and taxes have been subtracted from total revenue.