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strojnjashka [21]
3 years ago
10

How are dot products useful?

Mathematics
2 answers:
nata0808 [166]3 years ago
6 0

Answer:

An important use of the dot product is to test whether or not two vectors are orthogonal. Two vectors are orthogonal if the angle between them is 90 degrees. ... Thus, two non-zero vectors have dot product zero if and only if they are orthogonal.

Step-by-step explanation:

Alex777 [14]3 years ago
3 0
Dot product is to test whether or not two vectors are orthogonal. Two vectors are orthogonal if the angle between them is 90 degrees. ... Thus, two non-zero vectors have dot product zero if and only if they are orthogonal.
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Dr.sox paid $1580 for a new computer system. She also paid 6.5% sales tax. How much was total cost?
Andru [333]

Answer:

$1,682.70

Step-by-step explanation:

  1. Convert the percent into a decimal by multiplying by 0.01: the percent in this problem is 6.5%, so when you multiply by 0.01, you get 0.065
  2. Multiply the price by your new decimal: in this case, that would mean to multiply 1580 by 0.065, which gives you 102.7. <u>Keep in mind that this is just the tax, not your final answer.</u>
  3. Add the tax you just calculated to the original price: add 102.7 to 1580 to get 1,682.7. That is your final answer.
4 0
3 years ago
Suppose you cannot remember the answer to 15-8=7. What could you do to solve?
Sveta_85 [38]

You can think in reverse. Addition is the opposite of subtraction. So to solve 15-8, you can ask "8 plus what number is equal to 15?" and note how 8+7 = 15. So that's why 15-8 = 7. Similarly, 15-7 = 8 can be solved the same way.

3 0
3 years ago
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Find the distance between the two points in simplest radical form.<br> (1,8)(6,-4)
dezoksy [38]
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Or root 169
8 0
3 years ago
PLEASE ANSWER ASAP *picture attached*<br>f(x) = x2 + 1 g(x) = 5 – x
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Answer:

x^{2} +x-4

Step-by-step explanation:

To get the answer just subtract f(x) by g(x)

The work is shown below:

(f-g)(x)= f(x)-g(x)\\\\(f-g)(x)= (x^{2} +1)-(5-x)\\\\(f-g)(x)= x^{2} +1-5+x\\\\(f-g)(x)= x^{2} -4+x\\\\(f-g)(x)= x^{2} +x-4\\\\

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2 years ago
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sertanlavr [38]

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Step-by-step explanation:

5 0
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