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abruzzese [7]
2 years ago
9

One side of a regular pentagon measures 0.8 meters. What is the perimeter of the regular pentagon

Mathematics
1 answer:
topjm [15]2 years ago
3 0
5 (the sides) x 0.8 = 4 meters
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What is the sum of a geometric sequence 1, 3, 9, ... if there are 12 terms?
attashe74 [19]
We know that
a1=1
a2=3
a3=9
a2/a1=3/1----> 3
a3/a2=9/3----> 3
<span>common ration r is equal to 3
number of terms n  is 12

The </span><span>Sum of geometric series is given by the formula
</span>Sum=a1*[1-r<span>^n]/[1-r]
</span>Sum=1*[1-3^12]/[1-3]-----> Sum=[1-3^12]/[1-3]----> [3^12-1]/[3-1]
<span>Sum=531440/2-----> 265720

the answer is
265720



</span>
4 0
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A movie theater has 400 seats. Tickets at the theater cost $8 for students, $10 for adults, and $7 for senior citizens. On a nig
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Step-by-step explanation:

6 0
3 years ago
Oliver is 33 years old than is son .eight years ago Oliver's age is five more than thrice his son's present age go old is Oliver
galina1969 [7]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
I need help quick, its super hard
faltersainse [42]

Answer:

Q

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ABCD is a quadrilateral inscribed in a circle, as shown below:
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Answer:

Option 4: <u>(2x + 16)° + (x)° = 180°</u>

Step-by-step explanation:

See the attached figure.

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From the figure:

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4 0
2 years ago
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