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Reika [66]
3 years ago
11

Find the geometric mean of 2a and 4a.

Mathematics
1 answer:
Andreyy893 years ago
8 0
3a.

Explanation:
the mean, first of all, is the average. so, you need to find the average between 2 ans 4 since it has the same label. 2+4=6. 6/2=3
Answer: 3a

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For each function, find f(-1), f(1), and f(3)<br> f(x)=3x-4
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Step-by-step explanation:

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3 years ago
Read 2 more answers
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\bf \textit{ sum of a finite arithmetic sequence}&#10;\\\\&#10;S_n=\cfrac{n(a_1+a_n)}{2}\qquad &#10;\begin{cases}&#10;n=n^{th}\ term\\&#10;a_1=\textit{first term's value}\\&#10;----------\\&#10;a_1=10\\&#10;a_{17}=74\\&#10;n=17&#10;\end{cases}&#10;\\\\\\&#10;S_{17}=\cfrac{17(10+74)}{2}\implies S_{17}=\cfrac{17(84)}{2}\implies S_{17}=714
6 0
2 years ago
Read 2 more answers
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