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NeTakaya
2 years ago
14

Please help

Mathematics
1 answer:
denis-greek [22]2 years ago
6 0

The number of balloons needed to fill the classroom are  46240 balloons (approx)

Concept: Fermi process is the technique that helps to formulate an answer to a problem based on a series of logical assumptions.

No. of balloons = Volume of rectangular prism/ Volume of each sphere (balloon)

Given: The classroom is a rectangular prism with a length of 38 ft, a width of 52 ft, and a height of 12 ft, and the balloons are spheres with a radius of 0.35 ft.

No. of balloons = Volume of rectangular prism/ Volume of each sphere (balloon)

No. of Balloons = 38*52*12/3.14*0.35*0.35*(4/3)

No. of Balloons = 23712/0.5128 = 46240 balloons (approx)

For more information about volumes , visit brainly.com/question/1972490

#SPJ10

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PtichkaEL [24]

Answer:  " 94. 6  ft² ".
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<u>Step-by-step explanation</u>:

The formula for the area of a trapezoid:
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A = (1/2) * (b1 + b2) * (perpendicular height, "h" ) ;

      in which:
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 "A = area (in units of ft²) "

 "b1 = length of (base one) = 7.7 ft (from diagram) ;  

 "b2 = length of (base two—the other base) = 14.3 ft. ;
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To solve for the Area, "A" ; we plug in the known values:
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A = (1/2) * (b1 + b2) * (perpendicular height, "h" );

   =  (1/2) * (7.7 ft + 14.3 ft) * (8.6 ft) ;

  = (1/2) * (22 ft.) * (8.6 ft) ;

  = (11 ft.) * (8.6 ft.) ;

   = (11) * (8.6) * (ft.) * (ft.) ;

   = (11) * (8.6) * ft² ;

A  =   " 94. 6  ft² ".

_______________________
Hope this is helpful to you!
  Best wishes!
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8 0
2 years ago
The product of x and 2 is less than or equal to 4
MissTica
2x≤4

I'm not sure how else to help you in this situation, without you providing me with more information.  If you want the solution for x, you would just divide both sides by the coefficient of the variable, or 2, resulting in the inequality:

x ≤ 2

Hope this helps! Comment if you need to add info or have any more questions about this problem.
5 0
3 years ago
Anita has a cellphone contract that costs her R100 per month plus 85 cents per peak time SMS,and 25 cents per off-peak time SMS.
algol [13]

Answer:

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Step-by-step explanation:

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Therefore, her monthly bill will be $ 164.25.

6 0
3 years ago
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Read 2 more answers
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Factor out a and subtract.

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