13. MULTIPLE CHOICE Which of the following combinations will tile a flat surface?

A. regular heptagons and equilateral triangles
B. squares and regular octagons
C. regular pentagons and regular hexagons
D. regular hexagons and squares

We have been given that a of sofa prices are normally distributed with a mean of 2500 dollars and a standard deviation of 200 dollars.  A leather sofa has a price of 2410 dollars. We are asked to find the proportion of sofa prices that are higher than the price of the leather sofa.

First of all, we will find the z-score corresponding to sample score 2410.

\(z=\frac{x-\mu}{\sigma}\)

\(z=\frac{2410-2500}{200}\)

\(z=\frac{-90}{200}\)

\(z=-0.45\)

Now we need to find area under normal curve that is greater than z-score of \(-0.45\) that is \(P(z>-0.45)\).

Using formula \(P(z>a)=1-P(z<a)\), we will get:

\(P(z>-0.45)=1-P(z<-0.45)\)

Now we will find area under curve using normal distribution table.

\(P(z>-0.45)=1-0.32636\)

\(P(z>-0.45)=0.67364\)

Upon rounding to 4 decimal places, we will get:

\(P(z>-0.45)\approx 0.6736\)

Therefore, approximately 0.6736 of sofa prices are higher than the price of the leather sofa.

Answer:

0.6736

Step-by-step explanation:

khan academy

Answer: D

Step-by-step explanation: hope it helps

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

For the first equation,

h-3=9, we need to put all the knowns (numbers) on one side and all the variables on the other side. because equations are like a scale, if we do the same thing to both sides of the equation, the equation will still be true. for this equation, if we add 3 to both sides, we will get:

h-3+3=9+3

this can be simplified to:

h=12

this is your answer.

For the second equation,

we can apply the same principle for the first equation to the second equation.

1/2 x h = 10

can also be written as:

1/2 of h = 10

we can multiply both sides by 2 to get:

1h=20

or

h=20

Answer:

1) a. 15ft

b. 6ft

c. 30ft

2) a. 16m

b. 12m

c. 192m

answer for the 1st question:

1) length is 15 ft

2) width is 6ft

3) the area is 90 ft²

step-by-step explanation:

ok so we know that the plan is 2 in/6 ft

step 1-

we need to find the length of the terrace, and we know that the length of the terrace in the plan is 5 in

so by proportion- we'll need to find the length of the 'actual' terrace

2 in/ 6 ft= 5 in/ x ft

x=6*5/2

x=15 ft (we now have the length)

step 2-

now that we know the length, we need to find the width

the length of the terrace in the plan is 2 in

and by proportion- we'll find the 'actual' width of the terrace

2 in/6 ft=2 in/ x ft

x=6*2/2

x=6 ft

and now we'll find the area of the terrace (step 3)-

the formula for the area of a rectangle is a=lw or area=length*width

now we just fill the variables in with what we know-

so we know that 15 ft is the length and that 6 ft is the width-

15*6=90 ft²

**sorry about my original answer i didn't pay close enough attention**

good luck :)

i hope this helps

have a nice day !!

Answer:

83,000

Step-by-step explanation:

she would have 83,000 after 6 years

because

53,000 + ( 5,000 x 6)

5,000 x 3 is 30,000

53,000 + 30,000 is

83,000

unless you left out a peace of information tell me i would be happy to redo it :)

i did it first uwu lol

Answer:

a+5=3.5

or a= -1.5

Step-by-step explanation:

2a+5≤7

now divide 2 into 7

then that 7 would be 3.5 so

a+5=3.5

and a would equal

-1.5

Answer:

6

Step-by-step explanation:

What minus 5 equals 7? That's right, 12. what times 2 equals 12? 6

Answer:

140cm

Step-by-step explanation:

Answer:

37.5

Step-by-step explanation:

cosФ = \(\frac{A}{H}\)

cos(33°35') = \(\frac{m}{45}\)

m = 45 × cos(33°35')

m = 37.5 (1d.p.)

Answer:

draw a line that makes a triangle and rectangle.

hypotenuse= 30

3k-4k-5k triangle

18-24-30

so the short part of triangle is 18 cm

10+10+18+24+30 equals 92

sorry for language I am not familiar with English

the perimeter of this shape is

24+10+10+30+\(\sqrt{30^{2} -24^{2} }\) = 92 cm

Answer:

1/3

Step-by-step explanation:

just convert it?

3/10

Step-by-step explanation:

60% is the same as 60/100

90% is the same as 90/100

90-60=30

30/100

30/100 is divided by 10 on each side to simplify it to 3/10

Answer:

85 degrees

Step-by-step explanation:

Answer:

Step-by-step explanation:

To find the number of bananas, we need to determine the proportion of bananas in the total number of fruits based on the given ratio.

Let's assume that the ratio of oranges, apples, and bananas can be represented by 8x, 5x, and 2x, respectively, where x is a common multiplier.

The sum of the parts in the ratio is 8x + 5x + 2x = 15x.

We know that the total number of fruits is 120. Therefore, we can set up the following equation:

15x = 120

To solve for x, we divide both sides of the equation by 15:

x = 120 / 15

x = 8

Now that we know the value of x, we can find the number of bananas by multiplying it by the corresponding part of the ratio:

Number of bananas = 2x = 2 * 8 = 16

So, there are 16 bananas in total.

We can add all the parts to the ratio and get 15. Out of 15 parts, 2 are bananas. Now we can calculate how many fruits are in one part. One fifteenth of 120 is 8, so there are 8 fruits in one part. 2 parts are bananas, so multiplying 8 with 2 gives us our answer, 16.

Answer:

y = 8x + 19

Step-by-step explanation:

Slope:

Slope: 8

Y-intercept:

Input points

Y-intercept: 19

Equation:

y = 8x + 19

-Chetan K

Here the co-ordinates are

Slope:-

\(\\ \tt\hookrightarrow m=\dfrac{339-19}{40-0}=\dfrac{320}{40}=8\)

Equation of line in point slope form

\(\\ \tt\hookrightarrow y-y1=m(x-x_1)\)

\(\\ \tt\hookrightarrow y-19=8(x)\)

\(\\ \tt\hookrightarrow y-19=8x\)

\(\\ \tt\hookrightarrow y=8x+19\)

Answer: You have 200 apples but you eat 7x and now you have a total of 95,what is X?

Step-by-step explanation:

X=105

7 X 15=105

200-105=95

(EDIT: Sorry I didn't read the question right so here's the one I remade)

Answer:

Matthew goes to the mall with 200 dollars to spend, he walked into a clothing store and bought 7 shirts all equalling the same price, how much was each shirt, letting x represent price

Answer:

yes

Step-by-step explanation:

The law lets us move all of the addends around in any addition problem.

Answer:

Step-by-step explanation:

ressions.

There are a few boxes with 12 red pens in each and a few boxes with 10 blue pens in each. If 10 red pens and 5 blue pens are removed, the total number of pens that remains is given by the expression (12x − 10) + (10y − 5). Here, x represents the number of boxes containing red pens and y represents the number of boxes containing blue pens.

Answer:

1. (A) Greece has the longest coastline in Europe and is the southernmost country in Europe. The mainland has rugged mountains, forests, and lakes, but the country is well known for the thousands of islands dotting the blue Aegean Sea to the east, the Mediterranean Sea to the south, and the Ionian Sea to the west.

1. (B) Rome was built on a defensible hill that dominated the last downstream, high-banked river crossing where traverse of the Tiber was facilitated by a midstream island. This hill, Palatine Hill, was one of a group of hills, traditionally counted as seven, around which the ancient city grew.

1. (C) The fertile soil of the Po and Tiber River Valleys allowed Romans to grow a diverse selection of crops, such as olives and grains. Greece's steep mountains and surrounding seas forced Greeks to settle in isolated communities. Travel by land was hard, and sea voyages were hazardous. Most ancient Greeks farmed, but good land and water were scarce. They grew grapes and olives and raised sheep, goats, pigs, and chickens.

2. (A) Monotheism:
So mono means like one, so monotheism means that you only believe in one god.  (The three religions of Judaism, Christianity, and Islam readily fit the definition of monotheism)

Polytheism:
So poly means more than one, so polytheism is the opposite of monotheism (more than one god) (for example, Hinduism, Shintoism, Thelema, Wicca, druidism, Taoism, Asatru, and Candomble).

2. (B) Jewish people believe there's only one God who has established a covenant—or special agreement—with them. Their God communicates to believers through prophets and rewards good deeds while also punishing evil. Most Jews (with the exception of a few groups) believe that their Messiah hasn't yet come—but will one day.
2. (C) Christians believe there's only one God, and he created the heavens and the earth. This divine Godhead consists of three parts: the Father (God himself), the Son (Jesus Christ), and the Holy Spirit.

2. (D) So I was not sure about the Greek, so I only did the Roman part, hope that's alright. As different cultures settled in what would later become Italy, each brought its own gods and forms of worship. This made the religion of ancient Rome polytheistic, in that they worshipped many gods. They also worshipped spirits. Rivers, trees, fields, and buildings each had their own spirit or numen. (I think)

3. (A) The Greeks made important contributions to philosophy, mathematics, astronomy, and medicine. Literature and theatre was important aspect of Greek culture and influenced modern drama. The Greeks were known for their sophisticated sculpture and architecture.

3. (B) The legacy of Ancient Rome is still felt today in Western culture in areas such as government, law, language, architecture, engineering, and religion.

(Not too sure about this one) Roman models of colonialism and of warfare also became influential.

It was due to their exceptional concrete that they were able to produce their sturdy aqueducts and bridges as well as other structures.

3. (C) The Greeks made important contributions to philosophy, mathematics, astronomy, and medicine.

3. (D) A people known for their military, political, and social institutions, the ancient Romans conquered vast amounts of land in Europe and northern Africa, built roads and aqueducts, and spread Latin, their language, far and wide.

3. (E) Though it has been thousands of years since the Roman Empire flourished, we can still see evidence of it in our art, architecture, technology, literature, language, and law.

3. (F) The Greeks pretty much invented modern mathematics, sculpture, philosophy, science, and even medicine.

Hope this helps!

Answer:1. (A) Greece has the longest coastline in Europe and is the southernmost country in Europe. The mainland has rugged mountains, forests, and lakes, but the country is well known for the thousands of islands dotting the blue Aegean Sea to the east, the Mediterranean Sea to the south, and the Ionian Sea to the west.

Step-by-step explanation:

Answer:

The area is

A = 201.6 or with units we have A = 201.6 cm^2

Step-by-step explanation:

We find the area of the triangle and the rectangle separately, and then add the areas to get the total area

Area of Rectangle = R = (base)(height)

R = (12)(15)

R = 180

R = 180 cm^2

Area of Triangle = T = 1/2(base)(height)

T = (1/2)(12)(3.6)

T = 21.6

T = 21.6 cm^2

Total Area = A = Area of Rectangle + Area of Triangle

A = R + T = 180 + 21.6

A = 201.6

A = 201.6 cm^2

Answer:

The answer is 648.

Step-by-step explanation:

I hope this helps you and that you get 100% ;D

Answer:

1 1/4 of a hour if thats what u mean

Answer:

15=13

Step-by-step explanation:

15=-6 you solve the left side, 7+6 which is 15?

15=-6 =

7+6 = 13

15=13

i'm not sure...

15=13 would be the answer : )

Answer:

Get a calculator and do 12,946 - 3430 and your answer is there.

Step-by-step explanation:

Answer:B

dilation of 0.5 about the origin

Step-by-step explanation:

I did this assignment and got a 100.