1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Paraphin [41]
2 years ago
5

The population of Florida in 2010 was 18,801,310 and the land area was 53,625 square miles. The population increased 5.8% by 201

4. To the nearest whole number what is the population density in people per square mile for Florida in 2014? To the nearest whole number how much did the population density in people per square mile increase from 2010 to 2014?
Mathematics
1 answer:
Svet_ta [14]2 years ago
8 0
5.8/100 = x/18,801,310 ==================================> x = 1,090,475.98 =================================> 18,801,310 + 1,090,475.98 = 19,891,785.98 population at 2014 =============================> 19,891,785.98/53,625 = about 371 people per square mile in 2014 =================================> 18,801,310/53,625 = about 351 people per square mile in 2010 =================================> 371 - 351 = 20 people per square mile increase from 2010 to 2014
You might be interested in
The product of a number and -3 increased by 8 is no less than 35.
IgorC [24]

Answer:

x = -9

Step-by-step explanation:

-3x + 8 =35

-3x = 27

x = -9

8 0
3 years ago
Read 2 more answers
An independent random sample is selected from an approximately normal population with an unknown standard deviation. Find the p-
Vedmedyk [2.9K]

The complete question is missing, so i have attached it

Answer:

A) Reject the null hypothesis

B) Reject the null hypothesis

C) Fail to reject the null hypothesis

D) Reject the null hypothesis

Step-by-step explanation:

A) We are given;

Ha: μ > μ_o (This is thus, a one-tail problem)

n = 11

T = 1.91

Using online p-value from t-score calculator as attached with a DF = n - 1 = 11 - 1 = 10, and t-value = 1.91, and significance level of 0.05, and 1 tail, we have;

The p-value is 0.042602

P-value is less than significance level, thus, we will reject the null hypothesis

B) We are given;

Ha: μ < μ_o (This is thus, a one-tail problem)

n = 17

T = -3.45

Using online p-value from t-score calculator as attached with a DF = n - 1 = 17 - 1 = 16, and t-value = 1.91, and significance level of 0.05, and 1 tail, we have;

The p-value is  0.001647

P-value is less than significance level, thus, we will reject the null hypothesis

C)We are given;

Ha: μ ≠ μ_o (This is thus, a two-tail problem)

n = 7

T = 0.83

Using online p-value from t-score calculator as attached with a DF = n - 1 = 7 - 1 = 6, and t-value = 0.83, and significance level of 0.05, and 2 tail, we have;

The p-value is 0.438308.

P-value is higher than the significance level, thus, we will fail to reject the null hypothesis.

D) We are given;

Ha: μ > μ_o (This is thus, a one-tail problem)

n = 28

T = 2.13

Using online p-value from t-score calculator as attached with a DF = n - 1 = 28 - 1 = 27, and t-value = 2.13, and significance level of 0.05, and 1 tail, we have;

The p-value is 0.021218

P-value is lower than the significance level, thus, we will reject the null hypothesis

P-value is lower than the significance level, thus, we will reject the null hypothesis.

6 0
3 years ago
If the expression $3^1 times 9^2 times 27^3 \times 81^4 is simplified to the form 3^n, what is the value of n?
Darina [25.2K]

Answer:

n=30

Step-by-step explanation:

Given expression:

3^1\times 9^2\times 27^3\times 81^4

The given expression needs to be simplified to the form 3^n

Applying the exponents rule to simplify.

3^1\times 9^2\times 27^3\times 81^4

Writing all numbers as product of 3.

⇒ 3^1\times (3\times3)^2\times (3\times3\times3)^3\times (3\times3\times3\times3)^4

Writing each in exponents form.

⇒ 3^1\times (3^2)^2\times (3^3)^3\times (3^4)^4

Using power of a power rule [\ (a^x)^y=a^{xy}\ ]

⇒ 3^1\times 3^4\times 3^9\times 3^16

Using multiplication rule of exponents [\ a^x\times a^y=a^{x+y}\ ]

⇒ 3^{1+4+9+16}

⇒ 3^{30}

So we have 3^n=3^{30}

∴ n=30

8 0
2 years ago
Examples from your surroundings where we use negative rational number​
kotegsom [21]

Answer:

U can see it in your thermometer

Step-by-step explanation:

8 0
3 years ago
The perimeter of a child’s rectangular sandbox is 18 feet . if the length of the sandbox is one foot longer than the width , wha
Andrew [12]

Answer:

2(b+1+b)= 18

Step-by-step explanation:

Perimeter of a rectangle= 2(l+b)

18 feet= 2(l+b)

length: l, breadth: b

Because the length of the sandbox is 1 foot longer, it will be:

b+1 = l

Substitute l with b+1

2(b+1+b)= 18

8 0
2 years ago
Other questions:
  • 6x^2+x-1=(2x+1)( ) Whats the missing factor
    6·1 answer
  • What function is represented below?
    8·2 answers
  • Lauren solved the equation $|x-5| = 2$. meanwhile jane solved an equation of the form $x^2+ bx + c = 0$ that had the same two so
    5·1 answer
  • a rectangle has a length of 5 yards and a width of 3 yards. what is its perimeter? explain your answer
    14·2 answers
  • Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 17 Use the empirical rule to
    12·1 answer
  • What is the length of the altitude of the equilateral triangle below?30°613613a60" 90" 60"313 313O A. 3O B. 9O D. 3N3o E. 108o F
    7·2 answers
  • Can somoene help me!! this is due today!
    7·1 answer
  • What are the answers to these
    6·1 answer
  • A cheque recevied from ram 3400 in full settlement of 3500 journal entry​
    13·1 answer
  • Jenna bought a savings certificate that earned 2% simple interest per year. She earned a total of $100 in interest over 4 years.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!