2 years ago

Gerri says that if a number is a multiple of 9 it is also a multiple of 3. Do you agree ? Explain

Mathematics

1 answer:

kotykmax [81]2 years ago

7 0

Answer:

That friend is s2pid.

Step-by-step explanation:

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

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2 years ago

Michael just drank a cup of coffee to help him stay awake. The coffee had 110 milligrams of caffeine in it. If his body processe

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Use the simple interest formula to find the unknown quantity. I = prt I = $9 p = $450 r = 4% t =

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1/2

just did this on edgenuity:)

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2 years ago

Fred has 32 ounces of cookie dough. If he used 0.56 ounces of cookie dough for each cookie, what is a reasonable estimate of how

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57 cookies

Step-by-step explanation:

32/0.56= 57.14

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Step-by-step explanation:

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160 x 1 = 160

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