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Deffense [45]
3 years ago
10

The particle is emitted in alpha radiation is the same as a / an?

Mathematics
2 answers:
Setler79 [48]3 years ago
8 0
Answer: b. helium nucleus

Helium nucleus is the particle that is being emitted in an alpha radiation. This helium nucleus then transforms and becomes decays that are also known as alpha decays. The alpha particle maybe similar to helium nucleus however, it does not have electrons surrounding it. 

nika2105 [10]3 years ago
8 0
B. helium nucleus
hope that helps.
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The two polygons above are similar. The scale factor of the smaller polygon to the larger polygon is 3. The area of the smaller
Softa [21]
You would think it was 3 * 12 = 36. Not so. All polygons have to be broken down into some figure that will give 2 dimensions that are at right angles to each other. That would mean that
d1 * d2 = Area for the small polygon
3d1 * 3d2 = area of the larger polygon

What that means is that the area of the larger one is 9 times the smaller one.
Area large = 12 * 9 = 108 square units. <<<<< answer.

If you find this hard to be leave try it with a square.
Suppose you have a square (the small one) that is 3 cm by 3 cm
The small one has an area of 3*3 cm^2 = 9 cm

Now you have another square that is 3 times larger. That means that each side is 3*3 = 9
So s = 9
Area = s^2
Area = 9^2 = 81 cm^2
81 is 9 times larger than 9 just as you would think. 


4 0
3 years ago
Please help me with this question please help
Liula [17]

Answer:

It's 4.6 but rounded to 5

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Electronics Unlimited sells TVs. There are 110 TVs on display in the showroom, and each TV is turned on to a random channel from
Lynna [10]

Answer:

  • <u><em>Option B. There will be close to 40 TVs but probably not exactly 40 TVs not showing a sports channel.</em></u>

Explanation:

There are a total of <em>7 sports channels</em> and 4 non-sports channels o<em>ut of 11 channels.</em>

The probability that one <em>TV will be not be showing a sports channel</em>, P(not S), is:

  • P(not S) = number of non-sports channels / number of channels.

  • P(not S) = 4/11.

The <em>best prediction</em> on <em>how many TVs will not be showing a sports channel </em>is, the expected value, which is equal to the number of TVs mulitplied by P(not S):

  • P(not S) = 110 × 4/11 = 40.

Since this is a random variable, the expected value is not the exact number of TV but just a probability.

Hence, the answer is the option <em>B: There will be close to 40 TVs but probably not exactly 40 TVs not showing a sports channel.</em>

3 0
3 years ago
Read 2 more answers
A store sells five models of cameras for $190.00, $420.00, $270.00, $300.00, and $420.00. If the sales tax rate is 6%, what are
Juliette [100K]

mean= $339.20

median= $318.00

mode= $445.20

range= $243.80

3 0
3 years ago
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Which inequality is true when
Mars2501 [29]

Answer:

D

Step-by-step explanation:

If we use the calculator will find out that x= √151/2 ≈ 6.1441

D. 6 < x < 7

x is less then 7 and greater than 6

Without the calculator you can think that 151 is almost 144 that is 12² so

we can approximate √151 to be a bit more then 12

√151/2 = a bit more then 12 /2 = 6 and a bit more

7 0
3 years ago
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