Mathematics High School

Izinho do Shanghai Financial Center, o Jin Mao Tower é um imponente arranha-céu inaugurado em 1999. Com 88 andares (referência ao número oito, símbolo de sorte e prosperidade na cultura chinesa) e uma altura de 420 m, a torre tem um shopping, discotecas, bares, cafés, restaurantes, escritórios e o hotel Grand Hyatt. Suponha que uma réplica do Jin Mao Tower seja construída na razão de 1:80 e colocada em exposição no chão de um salão de 9 m de altura. A distância entre o topo dessa réplica e o teto desse salão será de

Answers

Answer 1

Answer:

[tex]3.75\ \text{m}[/tex]

Step-by-step explanation:

A escala da réplica é  [tex]1:80[/tex]. Isso significa que 1 metro da réplica da escala representa 80 metros do edifício real.

Portanto, 1 metro do edifício real representa [tex]\dfrac{1}{80}[/tex] metros da réplica.

Precisamos encontrar a altura da réplica

[tex]420\ \text{m}=420\times\dfrac{1}{80}=5.25\ \text{m}[/tex]

Assim, a réplica da escala terá uma altura 5.25 m.

Está colocado numa sala com 9 m de altura.

A distância entre o topo da réplica e o teto do corredor é [tex]9-5.25=3.75\ \text{m}[/tex].

Related Questions

Helppppppppppppppppp

Answers

Answer:

if it's asking for the like point it would be (3,3)

Step-by-step explanation:

i apologize if that's not what it is asking for

Please help me with 7

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It is 7/25, sorry I have to make my text longer but ignore this because the awnser is 7/25

Answer:

Third choice, 7/25

Step-by-step explanation:

14 + 11 + 10 + 15 = 25 + 25 = 50, they also already stated this in the question so u don't have to calculate this

14 out of 50 students voted for nicholas, so it's a 14/50 chance, simplified would be 7/25

Michael puts $800 into a savings account. The account earns 2% simple interest. How much interest will he earn in 6 months?

Answers

Answer:

he earned 8 dollars in interest

Step-by-step explanation:

800(1+(.02)(.5))

hopefully im correct

6 + 3(x + 4)
PLEASE HELP!!!! I will give brainliest

Answers

3x+18

Step-by-step explanation:

Answer:

3x+18

Step-by-step explanation:

Is the answer

answer

What is the surface area of the cylinder with height 4m and radius 2m? Round your answer to the nearest thousandth.

Answers

Answer:

50.265m^3

Step-by-step explanation:

because the formula for solving this problem is πr^2•height and then to finish solving it would have to be put into cubed as it's 3d

:)()()()()()()()()()())(()()()()()()()()()helppp

Answers

Answer:

13

hope this helps you

If DF=61 and EF=18, find DE. ​

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Your answer would be 43 you can just subtract it

At a grocery store to gallons of milk cost $7.20 and 5 gallons of milk cost $18 write an equation relates the total cost T to the gallons of milk purchased M

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Answer:

$7.20 + (5 x $18) = T

Step-by-step explanation:

Do Recommendations Seventh grade > S Solve for d. 3 + 2d = 5​

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D=1 I hope this helps!!

Perpendicular Lines
Instructions: Given the following image is a cube, name a segment that is
perpendicular to AH?

Answers

Answer:

HG

Step-by-step explanation:

Where they meet another line at a 90 degree angle.

The segment that is perpendicular to segment AH in the given cube is: HG.

What are Perpendicular Segments?

When two segments form a right angle at the point of their interception, they are said to be perpendicular to each other.

In the image given, a right angle is formed where segments AH and HG meet. Therefore, a name of a segment that is perpendicular to AH is: segment HG.

Learn more about perpendicular segments on:

https://brainly.com/question/1865107

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Can someone tell me the answer to this 20 points

Answers

here hope this helps

Answer:

B

Step-by-step explanation:

Solve the system of equations 6x + 3y = 9 and -5x – 5y = 0 by combining the
equations.

Answers

Answer:

(X, y) =(3,-3)

Step-by-step explanation:

Use second equation

Apply to the first

(15 points) plz ay help would be appreciated and brainly will be given to best answer/for e-f find the value of x,y.z in each figure

Answers

Answer:

For E, each angle is 60° because its an equilateral triangle.

F is 45° for x, 135° for y, lastly z is 22.5°

Please help me in this Im failing.​

Answers

Answer:

B and C

Step-by-step explanation:

The answer to your question is either B or C. I hope this helps

When are two distinct lines parallel?

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Answer:

if the line keeps going and theynever touch

Step-by-step explanation:

Answer:

Two lines are parallel when are side by side and if the lines kept on going, they would never collide with each other

Step-by-step explanation:

Please answer ASAP!!!

Answers

first you need to convert them all into percentages...

dolphin - 43.3%
lion - 56.3%
rabbit - 47.5%
squirrel - 62 %
tiger - 65.8%

1. dolphin, rabbit, lion, squirrel, tiger
2. average person sleeps 8 hours a day which equals 33.3% ( 8/24 )
3. you, dolphin, rabbit, lion, squirrel, tiger

WILL GIVE A BRAINLIEST
1 fourth as a decimal?
1 fourth as a fraction?
1 fourth as a percent?
3 fourths as a decimal?
3 fourths as a fraction?
3 fourths as a percent?

Answers

Answer:

1/4=0.25

1/4

1/4=25℅

3/4=0.75

3/4

3/4=75℅

Find the slope of the line.

Answers

the slope of the line is 4/5

The math teacher gives each student a map of the amusement park that uses a coordinate plane. The meeting location is at (0, 0) on the map. Each unit is 100 feet. The first ride that you want to try is located at the coordinates (0, 4). The next ride is located at (3, 0). If you walked in a straight line from the first ride to the second ride, how many feet would you travel?

Answers

Answer:

500 ft

Step-by-step explanation:

use this formula

The actual distance between first and second ride is 500 ft.

What is Distance Formula?

The distance between two point P(a, b) and Q(c, d).

so, the distance PQ = √(c-a)² + (d- b)²

Given:

Starting point = (0,0)

First ride = (0,4)

Second ride = (3,0)

In map, each unit = 100 ft

Using the distance formula

d =  √( 3-0)² + (0-4)²

d = √9+ 16

d= √25

d = 5 units

So, the distance between first ride and second ride in the map is 5 units.

and,1 units  = 100 ft

5 units = 500 ft

Hence, the actual distance between first and second ride is 500 ft.

Learn more about distance formula here:

https://brainly.com/question/28956738

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[21+3(9)]/6+9

I need help

Answers

Answer:

the answer =7/6

=1.1666666667

Need help with this one
Please and thank you

Answers

Answer: -2 is a no. -9 is a yes. 2 is a no. -8 is a no.

Step-by-step explanation:

-9 yes and no to the rest

what is a linear equation that contains these points?​

Answers

Answer:

C

Step-by-step explanation:

If you plug in the numbers into that equation you get

1 = -2(2) + 5

1 = -4 + 5

1 = 1

You can also do this again with x = 5 y = -5

-5 = -2(5) + 5

-5 = -10 + 5

-5 = -5

The Jayden family eats at a restaurant that is having a 15% discount promotion. Their meal cost $78.90 before the discount, and they leave a 20% tip. If the tip applies to the cost of the meal before the discount, what is the cost of the meal?

Answers

Answer:

The 15% discount means that they only pay 100%-15% = 85% of the meal's bill.

This would cost 85% * 78.65.

However, they also have to pay a 20% tip of the meal cost.

This would cost 20% * 78.65.

Step-by-step explanation:

total Cost = (85% * 78.65) + (20% * 78.65)

= 105% * 78.65

= 1.05 * 78.65

= $82.58

Max has a drawer full of green and red socks. He has three times times as many red socks subtracted from four times as many green socks which he believes is 50 socks. Half the number of green socks plus one-third of the number of red socks is 36. How many of each colour does he have?

Answers

Answer:

There are 42 red colour socks and 44 green color socks

Step-by-step explanation:

Let there are r red socks and g green socks.

ATQ,

He has three times times as many red socks subtracted from four times as many green socks which he believes is 50 socks.

4g-3r=50 ....(1)

Half the number of green socks plus one-third of the number of red socks is 36.

[tex]\dfrac{g}{2}+\dfrac{r}{3}=36\\\\3g+2r=216\ .....(2)[/tex]

Multiply equation (1) by 2 and equation (2) by 3.

8g-6r = 100 ....(3)

9g +6r = 648 ....(4)

Add equation (3) and (4)

8g-6r + 9g +6r = 100+648

17g = 748

g = 44

Put the value of g in equation (1).

4(44)-3r=50

176-3r = 50

176-50 = 3r

r = 42

Hence, there are 42 red colour socks and 44 green color socks.

graph the following equation using the slope intercept method
3x+5y=-15​

Answers

Answer:

Step-by-step explanation:

Hey, Whats The answer please explain your answer marking brainliest:D...................................................

Answers

Answer:

C

Step-by-step explanation:

Difference means subtract, and the only one that has a subtraction included is C

3 4/5 - 2 1/3 and if needed simplify

Answers

1 7/15 hopes this works

Answer:

1 7/15 or 22/15

Step-by-step explanation:

Evaluate each expression
|30-5|-|-7|

Answers

Answer:

18

Step-by-step explanation:

|30 - 5| - |-7| = 18

Write an equation in point-slope form of the line that passes through the point (1, 6) and has a slope of −1/2

Answers

Answer:

y-6 = -1/2 * (x-1)

Step-by-step explanation:

Point slope form is y - y1 = m(x - x1), where (x1, y1) is the point and m is the slope. Plug in (1,6) for (x1, y1) and -1/2 for m.

Hey step brroooooooo

The graph of a line has slope 3/2 and passes through the point (-2, 4). Which point is on this line?
(0, 7)
(1, 6)
(2, 11)
(4, 1)

Answers

Answer:

(2, 11)

Step-by-step explanation:

Answer:

(1, 6)

Step-by-step explanation:

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