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Lina20 [59]
3 years ago
11

4( x - 3 ) - r + 2x = 5( 3x - 7) - 9x.........Can someone show me how to get this answer? please i'm getting really fustraded...

. I'm trying to find for "r"
Mathematics
1 answer:
Nesterboy [21]3 years ago
7 0
R = 23

To find this, first combine distribute the numbers, then combine like terms:

4x - 12 - r + 2x = 15x - 35 - 9x
6x - 12 - r = 6 x - 35

Here, the 6x's cancel out so you're left with constants.

-12 - r = - 35
-r = -23

And since -r still is negative, you'll have to divide by - to cancel it out on both sides, leaving you with positive 23 as r.

Hope this helps!
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a molecule is measured and the width is 3x10-6 cm. how long will a string of 225 similar molecule be? give your answer in scient
mixer [17]

The length of the molecule is 6.75*10^-^4cm in scientific notation.

Data;

  • Width of molecule = 3*10^-6 cm
  • Number of molecules = 225

<h3>Length of the molecule</h3>

This can be calculated as the total length of the 225 molecules added together. To do this, we simply multiply both the numbers of the molecules by the width of the molecule.

This becomes;

3*10^-^6*225 = 0.000675cm = 6.75*10^-^4cm

The length of the molecule is 6.75*10^-^4cm in scientific notation.

Learn more on scientific notation here;

brainly.com/question/5756316

brainly.com/question/1712028

7 0
2 years ago
1. How many degrees is x<br> .x<br> 41<br> 82<br> 20.5<br> o<br> 41<br> О<br> 10
Alja [10]

Answer:

Option (1)

Step-by-step explanation:

By the inscribed angle theorem inside a circle,

"Measure of an inscribed angle is half the measure of the intercepted arc"

\frac{1}{2}[m(arc AB)] = m(∠ABC)

m(arc AB) = 2[m(∠ABC)]

x = 2(41°)

x = 82°

Option (1) is the correct option.

5 0
3 years ago
Simplify <br> 12a-(4b+4a)-b
lara31 [8.8K]
12a-(4b+4a)-b
12a-4b-4a-b
=> 8a-5b
8 0
3 years ago
Read 2 more answers
What is the absolute value of -5
vladimir2022 [97]
The absolute value of 2 + 7<span> is 5.</span>
3 0
3 years ago
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7. A large population of ALOHA users manages to generate 60 requests/s, including originals and retransmissions. Time is slotted
Debora [2.8K]

Answer:

P(success at first attempt) = 0.1353

Step-by-step explanation:

This question follows poisson distribution. Thus, the formula is;

P(k) = (e^(-G) × (G)k)/k!

where;

G is number of frames generated in one frame transmission time(or frame slot time)

Let's find G.

To do this, we need to find number of frames generated in 1 slot time which is given as 50 ms.

Now, in 1000 ms, the number of frames generated = 50

Thus; number of frames generated in 50 ms is;

G = (50/1000) × 50

G = 2.5

To find the chance of success on the first attempt will be given by;

P(success at first attempt) = P(0) = e^(-G) = e^(-2) = 0.1353

8 0
3 years ago
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