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3 years ago

The question is attached in the picture below. (University level)

Mathematics

1 answer:

Luba_88 [7]3 years ago

4 0

Answer:

nope

Step-by-step explanation:

Apply dot product which must = 0 for orthogonality.

In this case,

-(3)(2) + (-2)(-2) + (-3)(1) + (1)(4) = -1.

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Answer

According to newton law of cooling

$\dfrac{d T}{dt} = k (T - T_a)$

and

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now At Ta = 100

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now,

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T(t) = 70

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