2 years ago

Angle (the question mark), (Write the number only) ? 77 124°

Mathematics

2 answers:

yKpoI14uk [10]2 years ago

7 0

47. my answer needs to be at least 20 characters long there u go

alexandr1967 [171]2 years ago

7 0

Answer:

Step-by-step explanation:

77+49 = 124

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3 years ago

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3 years ago

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3 years ago

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Murrr4er [49]

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Step-by-step explanation:

Given that the explicit rule for a sequence is $a_n=5(-2)^{n-1}$ .

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1) $a_n=-2a_{n+1}$ , $a_1=5$

2) $a_n=-5a_{n+1}$ , $a_1=2$

3) $a_n=-2a_{n-1}$ , $a_1=5$

4) $a_n=-5a_{n-1}$ , $a_1=2$

Plug n=1 into given formula to get first term

$a_n=5(-2)^{n-1}$

$a_1=5(-2)^{1-1}=5(-2)^{0}=5(1)=5$

base of the exponent part is (-2) so that means we need to multiply -2 to the previous term to get nth term

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3 years ago

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Simora [160]

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3 years ago