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ElenaW [278]
3 years ago
14

If I have 14 neutrons and 11 electrons, what is my mass number?

Mathematics
2 answers:
schepotkina [342]3 years ago
8 0
I think the answer is 25
Vinil7 [7]3 years ago
3 0

Answer:

A : 25

Step-by-step explanation:

In a neutral atom, the number of electrons is equal to the number of protons. The atomic number indicates the number of protons.

The mass number is the sum of the number of neutrons and the number of protons.

mass number=protons+neutrons

As we know from the atomic number, the number of neutrons is 14 and the number of electrons is 11.

mass number = 14 + 11

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What is a comparison as a rate in ratio form 70 students per 2 teachers​
nekit [7.7K]

Answer:

35:1

Step-by-step explanation:

divide each by two

8 0
3 years ago
The mean GPA for 127 residents of the local apartment complex is 1.6. What is the best point estimate for the mean GPA for all r
madam [21]

By the Central Limit Theorem, the best point estimate for the mean GPA for all residents of the local apartment complex is 1.7.

The Central Limit Theorem established that, for a normally distributed random variable X, with mean and standard deviation, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean  and standard deviation ;

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

The sample of 112 residents has a mean GPA of 1.7.

By the Central Limit Theorem, the best point estimate for the mean GPA for all residents of the local apartment complex is 1.7.

Learn more about Mean:

brainly.com/question/4313883

#SPJ4

4 0
2 years ago
Question 3
choli [55]

Answer:

((19)(49)/98)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
30 multiplied by what number would give me the letter (y), 30 multiplicado por que numero me daria la letra (y),
LiRa [457]
Thats like geometry 
and are you good in this suject?
5 0
3 years ago
Can i have some help i spent a lot of points and it didn't work :((((
Ivahew [28]

Answers for A:

Factored form: (x-2)(x+4)

Zeros: x = 2, -4

Vertex: (-1, -9)

Answers for B:

Factored form: -(x+2)(x+7)

Zeros: x = -2, -7

Vertex: (-9/2, 25/4)

5 0
2 years ago
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