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Bogdan [553]
3 years ago
13

the positively charged core of an atom which is composed of positively charged protons in electrically neutral neutrons is a wha

t?
Mathematics
1 answer:
inna [77]3 years ago
3 0
<span>atomic mass is the answer

</span>
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Give two different sequences of three transformations that would map PQR onto EFG given that PQR=EFG.
Gre4nikov [31]

9514 1404 393

Answer:

  1. Translate P to E; rotate ∆PQR about E until Q is coincident with F; reflect ∆PQR across EF
  2. Reflect ∆PQR across line PR; translate R to G; rotate ∆PQR about G until P is coincident with E

Step-by-step explanation:

The orientations of the triangles are opposite, so a reflection is involved. The various segments are not at right angles to each other, so a rotation other than some multiple of 90° is involved. A translation is needed in order to align the vertices on top of one another.

The rotation is more easily defined if one of the ∆PQR vertices is already on top of its corresponding ∆EFG vertex, so that translation should precede the rotation. The reflection can come anywhere in the sequence.

__

<em>Additional comment</em>

The mapping can be done in two transformations: translate a ∆PQR vertex to its corresponding ∆EFG point; reflect across the line that bisects the angle made at that vertex by corresponding sides.

3 0
2 years ago
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Lisa’s car goes 300 miles on 15 gallons of gas. How fuel efficient is Lisa’s car?
sergejj [24]
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Efficient:20miles/gallons of gas
4 0
3 years ago
25 less than 4 times a number is 47. What is the number?
snow_tiger [21]

Answer:

18

Step-by-step explanation:

25 + 47 = 72

72 ÷ 4 = 18

5 0
3 years ago
Compare4/12 and 4/6 please help
Pachacha [2.7K]
Compare them by making them like terms.
4/6 x2/2=8/12
4/6=8/12 so when compared to 4/12,
4/6 > 4-12
8 0
3 years ago
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Express XCVI to Hindu Arabic<br>numerals.​
ozzi

Answer:

XCVI in Hindu Arabic  numerals.​ is 96 (100-10+5+1)

6 0
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