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Lelu [443]
3 years ago
12

Could someone explain me question 9 thank you

Mathematics
1 answer:
nordsb [41]3 years ago
4 0
R1 / r2 = sqrt(m2)  / sqrt(m1)  Notice the numbering system. If the 2 is on the denominator for the r, then it will be in the numerator for the m. You must substitute carefully.

r1 / r2 = sqrt(30) / sqrt(12) 
r1 / r2 = sqrt(2)*sqrt(3)(sqrt(5) / sqrt(3) sqrt(4) but sqrt(4) = 2.

ri / r2 = sqrt(2)* sqrt(3)*sqrt(5) / sqrt(3) * 2 Now you can cancel out sqrt(3)
r1 / r2 = sqrt(2)*sqrt(5) / 2

r1 / r2 = sqrt(10)/2 <<<< answer
B <<< answer. Notice that they put sqrt(2) and sqrt(5) together again.


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We might choose to write a recursive formula rather than an explicit formula to define a sequence because (D) the sequence is strictly geometric.

<h3>What is a sequence?</h3>
  • A sequence in mathematics is an enumerated collection of items in which repetitions are permitted and order is important. It, like a set, has members (also called elements, or terms).
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