3 years ago

Pls help me answer this i really need it :/

Mathematics

2 answers:

tekilochka [14]3 years ago

8 0

The answer is C
Step by step explanation

Mrac [35]3 years ago

5 0

Answer:

Answer is c

Step-by-step explanation:

Here's the explanation hope you understand my concept

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2 years ago

Given the vectors, a=3i+4j, b=-2i+5j, c=10i-j, d=-1/3i+5/2j, find -0.4a-0.3b+0.2d=?

sveta [45]

Answer:

$-\frac{2}{3}i - \frac{13}{5}j$

Step-by-step explanation:

-0.4(3i + 4i) - 0.3(-2i + 5j) + 0.2(- $\frac{1}{3}i$ + $\frac{5}{2}$ j)

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Converting to fraction form;

$-\frac{6}{5}i + \frac{3}{5}i - \frac{1}{15}i - \frac{8}{5}j - \frac{3}{2}j + \frac{1}{2} j$

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<u>Solving the j part;</u>

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3 years ago

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it's 48

Step-by-step explanation:

Because 8x3=24 and you multiply 6×8=48

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