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Anit [1.1K]
3 years ago
6

HELP NEEDED PLEASE!

Mathematics
1 answer:
Setler [38]3 years ago
4 0

Answer:

54

Step-by-step explanation:

\frac{4}{3} \pi r^{3} =12\pi \\r=\sqrt[3]{9} \\surface area 4\pi r^{2} = 4\pi (\sqrt[3]{9} )^2=54.372 (3dp)

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Answer:

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Step-by-step explanation:

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2 years ago
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Please solve both with explanation, I’ll give brainliest
DiKsa [7]

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2 years ago
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lesya692 [45]

Answer:

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Step-by-step explanation:

7 0
3 years ago
Solve the equation.1/2 a = 2/3
lana [24]
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3 years ago
What is the 51st term of the arithmetic sequence 29,9,-11
valina [46]

Answer:

-951

Step-by-step explanation:

an=a1+(n−1)d

\begin{gathered}29 = a_1 + (1-1)d\\29 = a_1\\9 = 29 + (2-1)d\\9 = 29 + d\\d = -20\\a_n = 29 -20 (n-1)\\a_n = 29 - 20n+20\\a_n = -20n + 49\\\\a_51 = -20(51) + 49 = -951\end{gathered}29=a1+(1−1)d29=a19=29+(2−1)d9=29+dd=−20an=29−20(n−1)an=29−20n+20an=−20n+49a51=−20(51)+49=−951

6 0
3 years ago
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