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charle [14.2K]
4 years ago
5

"15. describe the three data fragmentation strategies. give some examples of each."

Mathematics
1 answer:
OlgaM077 [116]4 years ago
8 0
1. Horizontal fragmentation – a table is separated into groups of rows rationally and each fragment (group/sunset) comprises unique rows and it is kept at different node. All rows have the same attributes and the SELECT statement yields the contents of the fragments.
2. Vertical fragmentation – the table is distributed into rational groups of attributes (columns). Each fragment covers a unique columns and is stored at a dissimilar position. The content in the fragment is attained by using the “PROJECT” statement.
3. Mixed fragmentation –This approach is the mix of horizontal and vertical strategies. In other words, each row fragment may be a blend of groups of attributes.
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How do you Simplify the expression completely.<br><br> c(4b3+3a)+b(2cb2−6ac) <br> Click
Dafna1 [17]

Answer:

c×3 (2 b^3 - 2 a b + a)

Step-by-step explanation:

Simplify the following:

c (4 b^3 + 3 a) + b (2 c b^2 - 6 a c)

Hint: | Factor common terms out of 2 c b^2 - 6 a c.

Factor 2 c out of 2 c b^2 - 6 a c:

c (4 b^3 + 3 a) + b×2 c (b^2 - 3 a)

Hint: | Pull a common factor out of c (4 b^3 + 3 a) + b×2 c (b^2 - 3 a).

Factor c out of c (4 b^3 + 3 a) + b×2 c (b^2 - 3 a), resulting in c ((4 b^3 + 3 a) + b×2 (b^2 - 3 a)):

c (4 b^3 + 3 a + 2 b (b^2 - 3 a))

Hint: | Distribute 2 b over b^2 - 3 a.

2 b (b^2 - 3 a) = 2 b^3 - 6 a b:

c (4 b^3 + 3 a + 2 b^3 - 6 a b)

Hint: | Group like terms in 4 b^3 + 3 a - 6 a b + 2 b^3.

Grouping like terms, 4 b^3 + 3 a - 6 a b + 2 b^3 = (4 b^3 + 2 b^3) - 6 a b + 3 a:

c (4 b^3 + 2 b^3) - 6 a b + 3 a

Hint: | Add like terms in 4 b^3 + 2 b^3.

4 b^3 + 2 b^3 = 6 b^3:

c (6 b^3 - 6 a b + 3 a)

Hint: | Factor out the greatest common divisor of the coefficients of 6 b^3 - 6 a b + 3 a.

Factor 3 out of 6 b^3 - 6 a b + 3 a:

Answer: c×3 (2 b^3 - 2 a b + a)

7 0
3 years ago
Jefferson works part time and earns 1520 in for weeks. How much does he earn each week
lord [1]
The answer is 380. You divide 1520 by 4 and that gives you the answer.
6 0
4 years ago
What is the value of M
Serggg [28]

m∠a = 56°, m∠b = 34°, m∠c = 56°

Solution:

<em>Sum of the adjacent angles in a straight line is 180°.</em>

⇒ m∠a + 124° = 180°

⇒ m∠a = 180° – 124°

⇒ m∠a = 56°

∠a and ∠c are vertically opposite angles.

Vertical angle theorem:

<em>If two lines are intersecting, then the vertically opposite angles are congruent.</em>

⇒ ∠a ≅ ∠c

⇒ m∠a = m∠c

⇒ m∠c = 56°

<em>Sum of the adjacent angles in a straight line is 180°.</em>

m∠b + 90° + m∠c = 180°

m∠b + 90° + 56° = 180°

m∠b + 146° = 180°

m∠b = 180° – 146°

m∠b = 34°

Hence m∠a = 56°, m∠b = 34°, m∠c = 56°.

6 0
4 years ago
Help asap! Please! Much appreciated!
stiv31 [10]
Area of the parallelogram = 20 x 16 = 320
Area of the triangle on top = 1/2 x 20 x 8 = 80 
Total = 320 + 80 = 400 square inches
5 0
3 years ago
Captain John Smith earns $3,300 a month in the Air Force. If the Air Force puts 6% into his pension, how much goes into his pens
sdas [7]
I think the correct answer from the choices listed above is the third option.  If the Air Force puts 6% into his pension, then $198 would go to his pension monthly. It is calculated by multiplying .06 to the amount he earns. Hope this answers the question. Have a nice day.
6 0
3 years ago
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