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V125BC [204]
3 years ago
11

I NEED THIS ROGHT NOE help me pls

Mathematics
1 answer:
Lorico [155]3 years ago
8 0

Answer:

A is estimated to 110.11

Step-by-step explanation:

Area of a regular pentagon = pa/2

p= perimeter

a= the apothem

Calculate it from the side length: p= 5s

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You need two sides so you can rewrite it as:
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3 years ago
What is the total surface area of the rectangular pyramid whose net is shown?
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Answer:

95 in.²

Step-by-step explanation:

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What is number 61 and a step by step explaination please?
astra-53 [7]

1/3 ln(<em>x</em>) + ln(2) - ln(3) = 3

Recall that m\log_b(n)=\log_b(n^m), so

ln(<em>x</em> ¹ʹ³) + ln(2) - ln(3) = 3

Condense the left side by using sum and difference properties of logarithms:

\log_b(m)+\log_b(n)=\log_b(mn)

\log_b(m)-\log_b(n)=\log_b\left(\dfrac mn\right)

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Take the exponential of both sides; that is, write both sides as powers of the constant <em>e</em>. (I'm using exp(<em>x</em>) = <em>e</em> ˣ so I can write it all in one line.)

exp(ln(2/3 <em>x</em> ¹ʹ³)) = exp(3)

Now exp(ln(<em>x</em>)) = <em>x </em>for all <em>x</em>, so this simplifies to

2/3 <em>x</em> ¹ʹ³ = exp(3)

Now solve for <em>x</em>. Multiply both sides by 3/2 :

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<em>x</em> ¹ʹ³ = 3/2 exp(3)

Raise both sides to the power of 3:

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<em>x</em> = 3³/2³ exp(3×3)

<em>x</em> = 27/8 exp(9)

which is the same as

<em>x</em> = 27/8 <em>e</em> ⁹

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3 years ago
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