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Alexeev081 [22]
3 years ago
7

Find a.b. a=[6,-2,3], b=[2,5, -1]

Mathematics
1 answer:
kotykmax [81]3 years ago
7 0

Answer:

a.b=[-1]

Step-by-step explanation:

This is a dot product of a and b

a.b =[6,-2,3].[2,5, -1] = [12-10-3] =[-1]

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If t represents the amount of time Neda has spent typing the second letter, which equation states the rule used to determine the
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Answer:

W = t + 200

Step-by-step explanation:

Number of words typed in the first letter = 200

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W = number of words typed in first letter + t

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Choosing any pair of values from the table :

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W = 200 + t

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Calculate the area of triangle ABC with altitude CD, given A (6,0) B(1,5) C (2,0) and D (4,2)
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So hmm check the picture below

the height or altitude is CD
and the base is AB

how long are those? well \bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
A&({{ 6}}\quad ,&{{ 0}})\quad 
%  (c,d)
B&({{ 1}}\quad ,&{{ 5}})\\\\
C&({{ 2}}\quad ,&{{ 0}})\quad 
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D&({{ 4}}\quad ,&{{ 2}})
\end{array}\qquad 
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\\\\\\
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7 0
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