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
sukhopar [10]
3 years ago
8

When constructing a graph that compares the land areas of the five largest countries, you choose to depict the five areas with s

quares of different sizes. If the squares are drawn so that the areas are in proportion to the areas of the corresponding countries, is the resulting graph valid? Why or why not?
No, using area in graphs is always misleading.


Yes, using area in graphs is never misleading.


Yes, the variable of interest is two-dimensional.


No, the variable of interest is two-dimensional.
Mathematics
2 answers:
Lerok [7]3 years ago
8 0
<h2>Answer:</h2>

The correct answer is:

      Yes, the variable of interest is two-dimensional.

<h2>Step-by-step explanation:</h2>

Since we know that the area of a land of five largest countries is two-dimensional.

Also , if we are using a square figure which is also two-dimensional in order to describe the area of land then it would be valid because we just used a mathematical model of equal dimension to describe these lands.

       Hence, the answer is:

     Yes, the variable of interest is two-dimensional.

Lera25 [3.4K]3 years ago
5 0
Yes, the variable of interest is two-dimensional.

If you are making a graph about the area of a country, that is a two dimensional measurement. It would be ok to make a graph that is also 2 dimensional.
You might be interested in
The marginal profit in dollars on Brie cheese sold at a cheese store is given by Upper P prime (x )equals x (60 x squared plus 9
blondinia [14]

Answer:

Part A:

P(x)=15x^4+30x^3-50

Part B:

P(4)=$4270

Step-by-step explanation:

Part A:

In order to find the profit function P(x) we have to integrate the P'(x)

P'(x)=x(60x^2+90x)

P'(x)=60x^3+90x^2

\int\limits {p'(x)} \, dx =\int\limits {60x^3+90x^2} \, dx

P(x)=15x^4+30x^3+C

when x=0, C=-50

P(x)=15x^4+30x^3-50

Part B:

x=4

P(x)=15x^4+30x^3-50

P(4)=15*4^4+30*4^3-50

P(4)=$4270

Profit from selling 400 pounds is $4270

8 0
3 years ago
Katie says ‘when you half a whole number that ends in 6, you always get a number that ends in 3.’ Write down an example to prove
mart [117]

Answer:

if you half 16 you get 8 not 3

6 0
3 years ago
According to data from a medical​ association, the rate of change in the number of hospital outpatient​ visits, in​ millions, in
GaryK [48]

Answer:

a) f(t)=0.001155[\frac{2}{3}t(t-1980)^{3/2}-\frac{4}{15}(t-1980)^{5/2}]+264,034,000

b) f(t=2015) = 264,034,317.7

Step-by-step explanation:

The rate of change in the number of hospital outpatient​ visits, in​ millions, is given by:

f'(t)=0.001155t(t-1980)^{0.5}

a) To find the function f(t) you integrate f(t):

\int \frac{df(t)}{dt}dt=f(t)=\int [0.001155t(t-1980)^{0.5}]dt

To solve the integral you use:

\int udv=uv-\int vdu\\\\u=t\\\\du=dt\\\\dv=(t-1980)^{1/2}dt\\\\v=\frac{2}{3}(t-1980)^{3/2}

Next, you replace in the integral:

\int t(t-1980)^{1/2}=t(\frac{2}{3}(t-1980)^{3/2})- \frac{2}{3}\int(t-1980)^{3/2}dt\\\\= \frac{2}{3}t(t-1980)^{3/2}-\frac{4}{15}(t-1980)^{5/2}+C

Then, the function f(t) is:

f(t)=0.001155[\frac{2}{3}t(t-1980)^{3/2}-\frac{4}{15}(t-1980)^{5/2}]+C'

The value of C' is deduced by the information of the exercise. For t=0 there were 264,034,000 outpatient​ visits.

Hence C' = 264,034,000

The function is:

f(t)=0.001155[\frac{2}{3}t(t-1980)^{3/2}-\frac{4}{15}(t-1980)^{5/2}]+264,034,000

b) For t = 2015 you have:

f(t=2015)=0.001155[\frac{2}{3}(2015)(2015-1980)^{1/2}-\frac{4}{15}(2015-1980)^{5/2}]+264,034,000\\\\f(t=2015)=264,034,317.7

3 0
3 years ago
ANSWER NEEDED QUICKLY, RIGHT ANSWER WILL RECEIVE BRAINLIEST ♦️
Oksi-84 [34.3K]

111km

the ratio is 1:15 so you do 7.4×15

7 0
3 years ago
Read 2 more answers
Doubling the sum of 5 and a number is equal to the same number decreased by 2. what is the equation
SVEN [57.7K]

Answer:

2(x + 5) = x - 2

⟹ x = -12

Step-by-step explanation:

Doubling the sum of 5 and a number is equal to the same number decreased by 2. What is the equation?

This word problem can be written as:

⟹ 2(x + 5) = x - 2

1. Distribute:

2(x) + 2(5) = x - 2

⟹ 2x + 10 = x - 2

2. Subtract x from both sides:

2x - x + 10 = x - x - 2

⟹ x + 10 = -2

3. Subtract 10 from both sides:

x + 10 - 10 = -2 - 10

⟹ x = -12

4. Check your work:

2(x + 5) = x - 2

2(-12 + 5) = -12 - 2

2(-7) = -20

⟹ -14 = -14 ✔

Learn more here:

brainly.com/question/17821973

3 0
1 year ago
Other questions:
  • there are 30 rooms available to house 42 students . if each room is occupied by either one or two students, how many rooms are o
    15·1 answer
  • After the pep rally ended, Jimmy ran into Alyssa and forgot his math book, so he was unable to complete his homework. What is th
    5·2 answers
  • 6a + 2b, 9a + 4b, 12 + 6b<br><br> Find the 40th term<br><br> Show all work :)
    12·1 answer
  • Beth’s music playlist contains songs she bought and songs her mother bought. The ratio of her songs to her mother’s songs is 3:2
    8·1 answer
  • Find x step by step (10 points)
    5·2 answers
  • If I want to make a profit of 20% of the selling price at 25$ on the pair of jeans, what price should I mark the jeans for?
    11·1 answer
  • 16. Is 4/9 a terminating or repeating decimal?<br> Terminating Decimal<br> Repeating Decimal
    10·1 answer
  • Find the vertex of this function. Is it a maximum or a minimum?<br> y=-3(x + 4)2 + 2
    5·1 answer
  • What is the value of x<br> If you know how to solve please show work! Please help
    15·1 answer
  • Draw a ratio box for this problem. Then solve the
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!