3 years ago

Yo can I get some help with this problem

Mathematics

1 answer:

Pepsi [2]3 years ago

6 0

Answer:

Step-by-step explanation:

this person posted the same question twice and I detailed on the other.

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The explicit rule for a sequence is an=5(−2)^n−1

Murrr4er [49]

Answer:

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

Step-by-step explanation:

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

Now we need to find about what is the recursive rule for the sequence and match with the given choices to find the correct choice.

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

Hence correct choice is: 3) $a_n=-2a_{n-1}$ , $a_1=5$

7 0

3 years ago

The 300 people who were lined up outside the amusement park had all entered by 8:15 a.m. By 8:30, 550 more had entered. The numb

Tasya [4]

Answer:

250; $p= 300 + \frac{50}{3}t$

Step-by-step explanation:

a. 15 minutes passed, so there would be 250 people who came in

b. You would create a formula, where t = time after 8:15 (in minutes), while p = people who are at the parade

$300 + \frac{250}{15}t = p$ , which equals $p= 300 + \frac{50}{3}t$

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3 years ago

PLS I NEED HELP TY SFM

yan [13]

Answer:

Step-by-step explanation:

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3 years ago

A one year membership to the gym costs $362. When signing up, members pay $54 for the first month, then the remaining part is ma

netineya [11]

362-54 divided by 12

308 divided by 12

25.67 a month

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3 years ago

im in third grade on my moms computer it says nico put some cuppcakes in the oven in 8:55 and takes them out 25 mintues when sho

nekit [7.7K]

He should take them out at 9:20.

Hope this helps!

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3 years ago