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Harlamova29_29 [7]
3 years ago
11

Here is a scale drawing of a window frame that uses a scale of 1 cm to 6 inches.

Mathematics
1 answer:
stiv31 [10]3 years ago
8 0

Answer:

sorry don't know wish I could help

Step-by-step explanation:

:) (: :(): :/ /:

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If a party hat has a radius of 3 inches, what is the area of the circular base?
Slav-nsk [51]

Answer:

A=9\pi\ in^2

Step-by-step explanation:

<u>Area of a Circle</u>

A circle is a geometric shape where all the points on its circumference are at the same distance to a fixed point called center. The radius is the distance from the center to any point of the circumference.

The relation of the length of the circumference to the radius is an irrational number called pi (\pi\approx 3.141592).

Another interesting relation in a circle is the area it occupies in a 2D space. Being r the radius of the circle, the area is computed by the formula

A=\pi r^2

The party hat has a radius of r= 3 inches. The area of the circular base is computed as follows

A=\pi\cdot 3^2

\boxed{A=9\pi\ in^2}

7 0
3 years ago
Read 2 more answers
Robin can clean 72 rooms in 6 days how many rooms can robin clean in 9 days
galben [10]

Hello!

Robin can clean 72 rooms in 6 days. How many rooms can Robin clean in 9 days?

We have a proportional magnitude (directly proportional), if we increase the number of days for cleaning, obviously we will have more rooms cleaned, then:

clean rooms __________ days

72 ----------------------------------- 6

y ------------------------------------- 9

\dfrac{72}{y} = \dfrac{6}{9}

multiply the means by the extremes

6*y = 72*9

6\:y = 648

y = \dfrac{648}{6}

\boxed{\boxed{y = 108}}\Longleftarrow(clean\:rooms)\end{array}}\qquad\checkmark

Answer:  

108 clean rooms in 9 days  

________________________

I Hope this helps, greetings ... Dexteright02! =)

6 0
3 years ago
What is the unit rate in cost per hour per <br> bicycle for each company
Ksivusya [100]

Answer:

?

Step-by-step explanation:

is there supposed to be a picture with this

3 0
3 years ago
A tap is filling a 10-liters tank at the speed of 5 liters per minute.
SVETLANKA909090 [29]

Answer:

<em />

  • <em>It takes</em><u>     2.5 minutes   </u><em>to fill the tank.</em>

Explanation:

The net speed or net rate for filling the 10-liters tank is equal to the speed the tap is filling less the speed the water is leaking through the hole located at the bottom of the tank:

  • Net rate = rate of filling - rate of leaking
  • Net rate = 5 liters/minute - 1 liter/minute
  • Net rate = 4 liters/minute

Thus, consiedering the tank is empty at the beginning, the time is:

  • Time = Volume of the tank / net rate of filling
  • Time = 10 liters / (4liters/minute)
  • Time = 2.5 minutes ← answer
4 0
3 years ago
Which expression or expressions is equivalent to -24-12w
Rashid [163]
-2-w is equivalent to -24 - 12w all you have to do is simplify the expression!
6 0
3 years ago
Read 2 more answers
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