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2 years ago

Which strategy should be used to correctly solve this problem?

1 answer:

6 0

B, make a table of possible values

the best way to do it is actually not listed
to have max area with minimu perimiter, try to get the sides as close measure to each other as possible

I would pick B though

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Multiple Choice. Which of the following fractions is equivalent to 6/15

Lemur [1.5K]

Answer:

2/5

Step-by-step explanation:

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2 years ago

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A cylinder has diameter of 4ft and a height of 9ft. Explain whether halving the diameter has the same effect on the surface area

elena55 [62]

Answer:

See Below

Step-by-step explanation:

The surface area of cylinder is given by the formula:

$SA=2\pi r^2 + 2\pi r h$

Where

r is radius ( diameter is 4, so radius is 4/2 = 2)

h is height ( h = 9)

Lets find original surface are:

$SA=2\pi r^2 + 2\pi r h\\SA=2\pi (2)^2 + 2\pi (2) (9)\\SA=8\pi +36\pi\\SA=44\pi$

<u>Halving diameter:</u>

diameter would be 4/2 = 2, so radius would be 2/2 = 1

So, SA would be:

$SA=2\pi r^2 + 2\pi r h\\SA=2\pi (1)^2 + 2\pi (1) (9)\\SA=2\pi +18\pi\\SA=20\pi$

<u>Halving height:</u>

Height is 9, halving would make it 9/2 = 4.5

Now, calculating new SA:

$SA=2\pi r^2 + 2\pi r h\\SA=2\pi (2)^2 + 2\pi (2) (4.5)\\SA=8\pi + 18\pi\\SA= 26\pi$

Original SA is $44\pi$ ,

Halving diameter makes it $20\pi$

Halving height makes it $26\pi$

So, halving diameter does not have same effect as halving height.

5 0

2 years ago

1) Qual é a equação que representa o perímetro de 103 cm de um triângulo escaleno? *

4vir4ik [10]

C c c c c c c c gc c c. C ccc

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2 years ago

Arrange the following in descending order

nekit [7.7K]

Answer:

0, -3, -5, -8, -12

Step-by-step explanation:

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2 years ago

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Find the cost per roll if a bag of five lunch rolls is $2.50.

Andru [333]

<h3><u><em>My friends the answer is:</em></u></h3><h3><u><em>If 1 lunch =$2.50 </em></u></h3><h3><u><em> 2 lunches = $5.00 (2.50x2) </em></u></h3><h3><u><em> 3 lunches =$7.50 </em></u></h3><h3><u><em> 4 lunches =$10.00 </em></u></h3><h3><u><em> 5 lunches= $12.50 </em></u></h3><h3><u><em> Just add $2.50</em></u></h3>

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2 years ago