skyrae05
23.04.2020 •
Mathematics
V = 3i – 5j and w = -7i + 4j , find 3v – 4w?
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Ответ:
3(3i-5j) - 4(-7i+4j)
= (9i-15j) - (-28i+16j)
Part 1) 9i - - 28i = 9i + 28i = 37i
Part 2) -15j - 16j = -31j
37i - 31j
Ответ:
read the explanation :)
Step-by-step explanation:
if you want, you can just count from an exact point on the graph to another, and then you have the answer. count from the y intercept (0,3) to the next exact point on the graph using rise over run. up 2, to the right once. so that makes the fraction 2/1.