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posledela
3 years ago
11

Evaluate the expression. r = <5, 9, -4>, v = <3, 3, -8>, w = <9, -6, -1> v ⋅ w

Mathematics
1 answer:
gladu [14]3 years ago
3 0

Answer:

v ⋅ w = 17

Step-by-step explanation:

We are given that,

v = <3, 3, -8> and w = <9, -6, -1>

It is required to find v ⋅ w.

So, evaluating the expression, we get,

v ⋅ w = <3, 3, -8> ⋅ <9, -6, -1>

i.e. v ⋅ w = 3×9 + 3×(-6) + (-8)×(-1)

i.e. v ⋅ w = 27 - 18 + 8

i.e. v ⋅ w = 35 - 18

i.e. v ⋅ w = 17

Hence, after evaluating, we have, v ⋅ w = 17

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Step-by-step explanation:

Function c is defined by the equation c(n) = 50 + 4n. It gives the monthly cost, in dollars, of visiting a gym as a function of the number of visits, n. Find the value of c(7).

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Step-by-step explanation:

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Read 2 more answers
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