Answer:
Answer:
The cross product is 47 i - 61 j + 17 k.
Step-by-step explanation:
Given that-
a = < -1, -3, -8 > , b = < 7, 4, -5 >
The cross product is
a × b =\begin{gathered}\left[\begin{array}{ccc}i&j&k\\-1&-3&-8\\7&4&-5\end{array}\right]\end{gathered}⎣⎢⎡i−17j−34k−8−5⎦⎥⎤
= i ( - 3 × -5 - 4 × -8 ) - j ( -1 × -5 - (-8) × 7 ) + k ( -1 × 4 - 7 × -3 )
= i ( 15 + 32 ) -j ×( 5 + 56 ) + k ( -4 + 21 )
= i ( 47) - j (61 ) + k (17)
= 47 i -61 j + 17 k
As we know that if two vectors A & B are perpendicular then
A . B = 0
So here only the given vector b = < 7,4, -5> is perpendicular to the resulting vector .
Step-by-step explanation:
47, -61, 71>; yes
Answer:
-6 on edge
Step-by-step explanation:
Answer:
4/11 since -5/9 between 4/11 is equal to -55/36
step by step explanation:
45 + 66 + 130 = 3747
44 + 43 + 452
3638-5362
233 reply
<h3>
I don't think this is right But</h3>
Step-by-step explanation:
<h2>
Mark me brainliest and u shall get our answer</h2>
273.8cm of wood framing
934mm=93.4cm
2(43.5+93.4)=y
2(136.9)=y
273.8=y