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Stella [2.4K]
3 years ago
5

What is the surface area of the pyramid

Mathematics
1 answer:
Shalnov [3]3 years ago
5 0

Answer:

S= 36.76

Step-by-step explanation:

S = area of base +(base of perimeter*Slant height)*1/2

S = 4*4+((4+4+4)/2)*3.46

S = 16+((12/2)*3.46)

S = 16+6*3.46

S = 16 + 20.76

S = 36.76 cm^2

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<h2><u>Part A</u>: He started with 4 miles. </h2>

<u>Explanation Part A</u>:    51.664 = (x((1.2⁷)-1)) / 0.2

<h2>
<u>Part B</u>: The equation is 51.664 = (x(1.2⁷)-1)/0.2</h2>

<u>Explanation</u>: n = 7 and on day 7 he traveled 51.664 so Sn = 51.664.

We get the second part of the equation because each day is increased by 20% so we have r = (1.2x) / x = 1.2

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Our bottom half is 1.2 - 1 which equals 0.2

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Our equation now looks like (4(1.2¹⁰)-1) / 0.2 which is equal to 103.83 miles.

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Read 2 more answers
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