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MariettaO [177]
2 years ago
6

PLS HELP

Mathematics
1 answer:
djyliett [7]2 years ago
4 0

Answer:

Look at the unfolded cylinder down: it's consisted of a rectangle and 2 circles. so to find the surface area of the cylinder we should find the areas of the rectangle and the 2 circles.

1) A of 2 circles = 2(πr^{2}) = 2πr^{2}

2) A of rectangle = base x height (or length x width) = bh

but the if we fold the rectangle? what will happen?

the base will go around the circle, this means that the base is equal to the circle circumference, which is 2πr.

Therefore, A of rectangle = 2πrh

3) Surface area of cylinder =  2πr^{2} + 2πrh

   simplify more and take the common factor 2πr:

    = 2πr (r+h)

   

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tankabanditka [31]

Answer:

Julie's share of the profits is (6/16)($4000) = $1500

Step-by-step explanation:

Write and solve an equation of ratios:

Jane's contrib.      $10000        10

---------------------- = -------------- = ------ .

Julie's contrib.         $6000        6

Adding 10 and 6 together, we get 16.

Julie's share of the profits is (6/16)($4000) = $1500.  Jane would take (10/16)($4000), or $2500.

7 0
2 years ago
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Answer:

5

Step-by-step explanation:

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2 years ago
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Lerok [7]

Answer:

C. 4x²√(3x)

Step-by-step explanation:

if x > 0

\sqrt{48x^{5}} =\sqrt{48} \times \sqrt{x^{5}}

          =\sqrt{16\times 3} \times \sqrt{x^{4}\times x}

          =\sqrt{16} \times \sqrt{3} \times \sqrt{x^{4}} \times \sqrt{x}

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          =4\times \sqrt{3} \times x^{2}\times \sqrt{x}

          =4\times x^{2} \times  \sqrt{3} \times \sqrt{x}

          =4\times x^{2}\times \sqrt{3x}

8 0
1 year ago
The object is made of solid plastic . it is a cylinder with indentation at the top in the shape of the cone 0.7 in 8in 4in on th
marissa [1.9K]

Answer:

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Step-by-step explanation:

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Ivahew [28]

Answer:

B

Step-by-step explanation:

the one on the tight becasue try plugging in zero

8 0
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