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nirvana33 [79]
3 years ago
12

Factor each expression 1. 3n + 9 2. t² + 4t 3. 15 + 20x

Mathematics
1 answer:
Gnom [1K]3 years ago
4 0
1... 3 (n + 3)
2... t (t + 4)
3... 5 (3 + 4x)

The trick to all of these is finding common factors, then taking them out... IT's pretty easy once you get the hang of it.
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= 1.8 and -0.8

so answer is -2.5 , -1.1 . -0.8,  0.8, 1.8

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The value of Adam's model railway is $550.
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Answer:(c)

Step-by-step explanation:

Given

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Putting values

\Rightarrow 736=550(1+r)^5\\\\\Rightarrow (1+r)^5=1.338

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Option (c) is correct

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3 years ago
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Step-by-step explanation:

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Question 1
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The true statement about why the Fibonacci sequence is recursively defined is (c) The Fibonacci sequence is recursively-defined because you must know the values of the two previous terms in order to find the value of the next term

<h3>How to determine the true statement</h3>

With an exception to the first two terms, each term of the Fibonacci sequence is the sum of the two previous terms

This means that,

The Fibonacci sequence cannot be defined explicitly, because the two previous terms can not be determined by a direct formula

Hence, the true statement about why the Fibonacci sequence is recursively defined is (c)

Read more about the Fibonacci sequence at:

brainly.com/question/16934596

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