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strojnjashka [21]

2 years ago

10

How are dot products useful?

2 answers:

nata0808 [166]2 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]2 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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1. If a box of 20 candy bars costs $39, what is the cost<br> per candy bar?

pishuonlain [190]

Answer:

$0.51 per candy bar

Step-by-step explanation:

Closest answer to 0.51282051282

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2 years ago

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Simplify (-4x^2-3y-8)+(5y-2x^2+1)

ddd [48]

Add the like terms.

The like terms in this case are:

-4x^2 and -2x^2

This makes -6x^2

-3y and 5y

This makes 2y

-8 and 1

This makes -7

Your answer is (-6x^2+2y-7)

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2 years ago

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2 years ago

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F(x)= √x-5. find f-2

rodikova [14]

For this case we have:

Be a function of the form $y = f (x)$

Where:

$f (x) = \sqrt {x-5}$

If we want to find f (-2), we substitute $x = -2$ , then:

$f (-2) = \sqrt {-2-5}\\f (-2) = \sqrt {-7}$

Since we have a negative root, the result will be given by complex numbers. By definition:

$\sqrt {-1} = i$

So:

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Answer:

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3 0

2 years ago

bazaltina [42]

Answer: Part A = (100% - 80%)P = 35, Part B = 140

<u>Step-by-step explanation:</u>

Percentage: Like + Don't like = 100%

80% + Don't like = 100%

<u> -80% </u> <u> -80% </u>

Don't like = 20%

People: 20% of Patrons = Don't Like

0.20 x Patrons = 35

<u>÷ 0.20 </u> <u> ÷ 0.20 </u>

Patrons = 175

<u>Now, let's write the equation we used to get that answer</u>:

Let P represent the total number of patrons, then the equation is:

(100% - 80%)P = 35

= (1.00 - 0.80)P = 35

= 0.20P = 35

= P = 175

<u>Part B: </u>

80% of Patrons = Like

0.80 x 175 = Like

140 = Like

6 0

2 years ago