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Crank
3 years ago
5

PLEASE HELP

Mathematics
1 answer:
Anna11 [10]3 years ago
6 0
1. A. y and 1.2y are like terms. c they both contain the same term (y) and can therefore be combined.

2. B. 12x+11 (you have to combine the like terms)

3. 15y+18-4
C. 15y+14 (you must distribute the 3 to inside the parentheses, so 3×5y and 3×6)

4. 9(9-3p) (you have to find a common factor between the terms, in this case 9, and you place it on the outside of the parentheses, while dividing that factor from those terms, which are placed in parentheses.
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Can someone give me the answer and solution plz
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4 years ago
For the same signal emitted by a radio antenna,
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Answer: The distance of  Observer A from the radio antenna is what fraction  of the distance of Observer B from the radio  antenna?​

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if Ia is the intensity that observer A measures and Ib is the intensity that observer B measures, we have that:

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rb^2 = 16*ra^2

and we know that 16 = 4*4 = 4^2

rb^2 = (4*ra)^2

then rb = 4*ra

this means that the distance between observer B and the antenna is equal to 4 times the distance between observer A and the antenna.

The fraction is ra = rb/4

The distance of

Observer A from the radio antenna is what fraction of the distance of Observer B from the radio antenna?​

It is 1/4.

4 0
4 years ago
Please help me with this algebra nation problem!
Darina [25.2K]

Answer:

A= 4x squared

B= 2x squared

C= I think its 7

Step-by-step explanation:

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