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LenKa [72]
3 years ago
6

In 2010, the population of Atlanta, Georgia was 4.2×105 and the total land area was 1.32×102 square miles. Approximately, what w

as the population density of Atlanta in 2010?
Use the following formula: population density = population / area

Enter your answer as a whole number in the box. Round your answer to the nearest thousand.
Mathematics
1 answer:
iren [92.7K]3 years ago
4 0

Answer:

The population is 3,000 to the nearest thousand

Step-by-step explanation:

Here, we want to calculate population density

Mathematically;

Population density = population/ area

form the question;

population = 4.2 * 10^5

area = 1.32 * 10^2 square miles

Population density = (4.2 * 10^5)/(1.32 * 10^2)

3.2 * 10^3

which as a whole number will be 3200

To the nearest thousand, this is 3000

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Trigonometry. This is an Tangent question.​
spin [16.1K]

Answer:

28/21

Step-by-step explanation:

tan= opposite/adjacent

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3 years ago
All the fourth-graders in a certain elementary school took a standardized test. A total of 85% of the students were found to be
Aneli [31]

Answer:

There is a 2% probability that the student is proficient in neither reading nor mathematics.

Step-by-step explanation:

We solve this problem building the Venn's diagram of these probabilities.

I am going to say that:

A is the probability that a student is proficient in reading

B is the probability that a student is proficient in mathematics.

C is the probability that a student is proficient in neither reading nor mathematics.

We have that:

A = a + (A \cap B)

In which a is the probability that a student is proficient in reading but not mathematics and A \cap B is the probability that a student is proficient in both reading and mathematics.

By the same logic, we have that:

B = b + (A \cap B)

Either a student in proficient in at least one of reading or mathematics, or a student is proficient in neither of those. The sum of the probabilities of these events is decimal 1. So

(A \cup B) + C = 1

In which

(A \cup B) = a + b + (A \cap B)

65% were found to be proficient in both reading and mathematics.

This means that A \cap B = 0.65

78% were found to be proficient in mathematics

This means that B = 0.78

B = b + (A \cap B)

0.78 = b + 0.65

b = 0.13

85% of the students were found to be proficient in reading

This means that A = 0.85

A = a + (A \cap B)

0.85 = a + 0.65

a = 0.20

Proficient in at least one:

(A \cup B) = a + b + (A \cap B) = 0.20 + 0.13 + 0.65 = 0.98

What is the probability that the student is proficient in neither reading nor mathematics?

(A \cup B) + C = 1

C = 1 - (A \cup B) = 1 - 0.98 = 0.02

There is a 2% probability that the student is proficient in neither reading nor mathematics.

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3 years ago
What is the slope of the line passing through (-3, 5) and (5, -3)?
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Answer:

The Slope = -1

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3 years ago
In the expression , 5.28 x 10^3 , which number is the base ?
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Bse is 10
x^m, x is base of exponent
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HELP ME ASAP PLEASE?!?!
miss Akunina [59]
A True

Congruent means to have the same shape and size or when we can cut them out and then match them up completely.
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