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Varvara68 [4.7K]
3 years ago
5

How many square feet of outdoor carpet will we need for this whole?

Mathematics
2 answers:
Black_prince [1.1K]3 years ago
7 0
1/2((6)(3)). (6)(12). 72-9
1/2(18). 72. 63ft squared
9
Dmitrij [34]3 years ago
3 0

Answer:

Step-by-step explanation:

The green part, I take is what is already covered, not what has to be covered.

The triangle is what you need to find which is given as 9 square feet. So the first statement can't be right.

Here you have to subtract 9 from 72

Area needed = 72 - 9 = 63 square feet.

72 square feet would be the amount with the triangle filled in.

63 square feet is the number of square feet needed with the triangle cut out.

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The table gives estimates of the world population, in millions, from 1750 to 2000. (Round your answers to the nearest million.)
BaLLatris [955]

Answer:

A.) 1508 ; 1870

B.) 2083

C.) 3972

Step-by-step explanation:

General form of an exponential model :

A = A0e^rt

A0 = initial population

A = final population

r = growth rate ; t = time

1)

Using the year 1750 and 1800

Time, t = 1800 - 1750 = 50 years

Initial population = 790

Final population = 980

Let's obtain the growth rate :

980 = 790e^50r

980/790 = e^50r

Take the In of both sides

In(980/790) = 50r

0.2155196 = 50r

r = 0.2155196/50

r = 0.0043103

Using this rate, let predict the population in 1900

t = 1900 - 1750 = 150 years

A = 790e^150*0.0043103

A = 790e^0.6465588

A = 1508.0788 ; 1508 million people

In 1950;

t = 1950 - 1750 = 200

A = 790e^200*0.0043103

A = 790e^0.86206

A = 1870.7467 ; 1870 million people

2.)

Exponential model. For 1800 and 1850

Initial, 1800 = 980

Final, 1850 = 1260

t = 1850 - 1800 = 50

Using the exponential format ; we can obtain the rate :

1260 = 980e^50r

1260/980 = e^50r

Take the In of both sides

In(1260/980) = 50r

0.2513144 = 50r

r = 0.2513144/50

r = 0.0050262

Using the model ; The predicted population in 1950;

In 1950;

t = 1950 - 1800 = 150

A = 980e^150*0.0050262

A = 980e^0.7539432

A = 2082.8571 ; 2083 million people

3.)

1900 1650

1950 2560

t = 1900 - 1950 = 50

Using the exponential format ; we can obtain the rate :

2560 = 1650e^50r

2560/1650 = e^50r

Take the In of both sides

In(2560/1650) = 50r

0.4392319 = 50r

r = 0.4392319/50

r = 0.0087846

Using the model ; The predicted population in 2000;

In 2000;

t = 2000 - 1900 = 100

A = 1650e^100*0.0087846

A = 1650e^0.8784639

A = 3971.8787 ; 3972 million people

3 0
3 years ago
What is the solution set of the inequality?
jolli1 [7]

Answer:

In the pic

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below =)

5 0
3 years ago
The volume of the above solid is?
Novosadov [1.4K]
B of course i think i hope
4 0
3 years ago
Write an explicit formula for a_na n ​ , the n^{\text{th}}n th term of the sequence 34, 26, 18, ...34,26,18
vaieri [72.5K]

Answer:

the answer is 5+7n please do you get it

4 0
3 years ago
Mark cycled 25 miles at a rate of 10 miles per hour. How long did it take Mark to cycle 25 miles
otez555 [7]
2.5 hours, because 10 miles an hour times 2 = 20 plus half the time? 2.5
8 0
3 years ago
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