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Ludmilka [50]
3 years ago
7

Two triangular pyramids are similar the volume of the large pyramids is 729cm and the volume of the smaller pyramids is 64 cm .

If the perimeter of the base of the similar pyramids is 8 cm what is the perimeter of the base of the larger pyramids
Mathematics
1 answer:
lilavasa [31]3 years ago
8 0

Answer:

18 cm for larger base

Step-by-step explanation:

For similar figures, there is a formula regarding volume, area, and length

Large: small =  y: x   for length

large: small = (y^3) / (x^3)  for volume

729 cm cube/ 64 cm cube  = large : small

9: 4  = large: small  by length

large/ 8cm = 9/ 4

large = 8*(9/4) = 2*9 = 18 cm

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mario62 [17]

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factor

x(x-1)=0

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x=0


x-1=0

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y=x+1, y=0+1, y=1, one point is (0,1)

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7 0
3 years ago
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lilavasa [31]

Answer:

y=\frac{1}{4} e^{2x}+\frac{3}{4} e^{-\frac{2}{3}x }

Step-by-step explanation:

Let,  D=\frac{d}{dx}

Now, us simplify the given differential equation and write it in terms of D,

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We have our auxiliary equation:

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and, y'=2Ae^{2x}-\frac{2}{3}Be^{\frac{2}{3}x }

Applying the boundary conditions, we get,

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Solving them gives us,

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Hence,

y=\frac{1}{4} e^{2x}+\frac{3}{4} e^{-\frac{2}{3}x }

4 0
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Given:

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The formula for simple interest is:

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Where, P is principal, r is the rate of interest and t is the number of years.

Putting I=160,r=5,t=4 in the above formula, we get

160=\dfrac{P\times 5\times 4}{100}

160=\dfrac{20P}{100}

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son4ous [18]

Answer:

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Step-by-step explanation:

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geniusboy [140]

Answer:

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If my answer is incorrect, pls correct me!

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