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vaeh41
02.08.2019 •
Mathematics
Position vectors m and n have terminal points of (2, ) and (1, y), respectively. if m · n = 8, then y is a. 4 1/2 b. 6 1/2 c. 8 d. 12
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Ответ:
You must provide all info for position vector m. Your (2,) is inadequate.
Supposing that the terminal point of vector m were (2,3), then
m dot n would equal 8, or 8 = 2*2+3*y. Then 8 = 4 + 3y, and 4 = 3y, and y =3/4.
Please type in the terminal point of vector m and then answer this question following the above example.
Ответ:
The first person was correct in the domain, however was incorrect with the integers and is actually the real numbers.
Step-by-step explanation:
Answer is Real Numbers and has the domain of −418 ≤ a ≤ 8848
hope this helps!