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prisoha [69]
3 years ago
15

In what order should a boolean retrieval system merge the related postings for best query efficiency?

Mathematics
1 answer:
Nonamiya [84]3 years ago
4 0

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

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Which pair of terms are like terms?
sdas [7]

Answer:

b: -2y and 4y

Step-by-step explanation:

The answer is option B

-2y and 4y are like terms because they have the same algebraic alphabet at the back of their coefficients.

6 0
3 years ago
What is 5/7 minus 1/2 equal to in like units
WARRIOR [948]

Answer:

3/14

Step-by-step explanation:

5/7 minus 1/2 is 5/7 - 1/2

5/7 and 1/2 are both called proper fractions. 5 and 1 in each fraction are called the numerator while 7 and 2 are called denominators

5/7 - 1/2

Step one

Find the lowest common multiple (LCM) of the denominators of each fractions

Multiples of 7

7 x 1 = 7

7 x 2 = 14

7 x 3 = 21

Multiples of 2

2 x 1 = 2

2 x 2 = 4

2 x 3 = 6

2 x 4 = 8

2 x 5 = 10

2 x 6 = 12

2 x 7 = 14

The lowest common multiple of 2 and 7 is 14

Step 2

The LCM of 2 and 7 becomes the common denominator for both fractions.

14/7 = 2

14/2 = 7

5/7 - 1/2 = [2(5) - 7(1)]/14 = (10 - 7)/14

= 3/14

8 0
3 years ago
A-Dilation with center O and scale factor of 3; rotation 45 degrees about O
Effectus [21]
I don’t get your question but I think it’s B
8 0
3 years ago
A construction contractor used the equation Y=KX to determine it would cost him $4.90 to buy 2 boxes of nails. How much in each
dem82 [27]
Data: (adopting)
Y = <span>$4.90
K = 2 boxes
x = ? (how much in each box)

Solving:
</span>Y = K*X
4.90 = 2*X
4.90 = 2X
2X = 4.90
X =  \frac{4.90}{2}
\boxed{\boxed{X = \$\:2.45\:each\:box}}\end{array}}\qquad\quad\checkmark<span>
</span>
8 0
3 years ago
-Solve (they are powers)
maks197457 [2]

Answer:

1)30.000

2)4

3)0,1

4)500

5)2.000

6 0
3 years ago
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