Answer:
Advantages of quantum mechanics include explaining phenomena found in nature as well as developing technologies that rely upon quantum effects, like lasers.
Step-by-step explanation:
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"<span>How much did your classmates typically spend on music downloads last year?" is a statistical question, and the units would </span>be both the number of students and how many downloads each individual bought.
Since there is a 5 to the right of the decimal, you will round the number immediately to the left of the decimal up. So the nearest whole number would be 71.
Your answer would be choice b
40! When you add all four angles of a quadrilateral together, you will always end up with 360. So, 360-75-120-125=40 :) have a great day!