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Lunna [17]
2 years ago
13

{(-3,9), (-2, 4), (0, 0), (1, 1)} Find the inverse

Mathematics
1 answer:
Elena-2011 [213]2 years ago
5 0

Answer:

Step-by-step explanation:

to find the inverse, just switch x and y

so if u have these points : (-3,9) , (-2,4), (0,0), (1,1)

the inverse would be : (9,-3) , (4,-2), (0,0), (1,1)

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Identify the correct equation that describe the relationship between a sine and cosine wave. a. v(t) = A sin (2πft + π/2) = A co
Flauer [41]

Answer:

A. v(t) = sin (2πft + π/2) = A cos (2πft)

Step-by-step explanation:

According to trigonometry friction, the following relationship are true;

Sin(A+B) = sinAcosB + cosAsinB

We will be using this relationship to check which option is true.

Wave equation is represented as shown;

y(t) = Asin(2πft±theta)

For positive displacement,

y(t) = Asin(2πft+theta)

If theta = π/2

y(t) = Asin(2πft+π/2)

y(t) = A[ sin 2πftcosπ/2 + cos2πft sin π/2]

Since sinπ/2 = 1 and cos (π/2) = 0

y(t) = A[ sin 2πft (0)+ cos2πft (1)]

y(t) = A[0+ cos2πft]

y(t) = Acos2πft

Hence the expression that is true is expressed as;

v(t) = Asin(2πft+π/2) = Acos2πft

8 0
3 years ago
In what order should a boolean retrieval system merge the related postings for best query efficiency?
Nonamiya [84]

Answer:

For each n get its posting then AND them

Step-by-step explanation:

1. Lets presume we have multiple n terms

2. We get the posting from each n term

3. We use the function AND and apply it to each n term

4. We start with the tiniest set and we continue from there

5. We have a pair of n terms

6. We get the posting from 1st n

7. We get the posting from 2nd n

8. We apply n1 AND n2

4 0
3 years ago
in a weakly connected graph. it is not possible to reach all other vertices from any one vertext (true) (false)
iVinArrow [24]
True it is true because you can reach the vertext at all times try it out my teacher told me right now check it our


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3 years ago
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The actual length of side y is 22cm. Use the scale drawing to find the length of side x.
kozerog [31]

Given:

The actual length of side y is 22cm.

To find:

The length of side x by using the scale drawing.

Solution:

We know that the corresponding sides of original figure and scale drawing are proportional.

\dfrac{x}{1.8}=\dfrac{y}{1.4}

\dfrac{x}{1.8}=\dfrac{22}{1.4}

x=\dfrac{22}{1.4}\times 1.8

x\approx 28.286

Therefore, the length of side x is about 28.286 cm.

8 0
3 years ago
Solve the equation. 4n−18=52
Margaret [11]
How to solve this: (in case you need it)
4n-18=52
4n-18+18=52+18
4n=70
4n/4=70/4
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3 years ago
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