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3 years ago

PLEAAAAAAASE HEEEEEELP!!!!

Mathematics

1 answer:

riadik2000 [5.3K]3 years ago

6 0

The recursive formula for the geometric sequence is $a_n=(-\frac{1}{4} )a_{n-1}$

Explanation:

The given sequence is $\{-16,4,-1,........\}$

We need to determine the recursive formula for the given geometric sequence.

To determine the recursive formula, first we shall find the common difference.

Since, it is a geometric sequence, the common difference can be determined by

$r=\frac{4}{-16} =-\frac{1}{4}$

$r=-\frac{1}{4}$

Hence, the common difference of the given geometric sequence is $r=-\frac{1}{4}$

The recursive equation for the geometric sequence can be determined using the formula,

$a_n=r(a_{n-1})$

Substituting the value $r=-\frac{1}{4}$ , we get,

$a_n=(-\frac{1}{4} )a_{n-1}$

Thus, the recursive formula for the geometric sequence is $a_n=(-\frac{1}{4} )a_{n-1}$

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3 years ago

A local pizza store knows the mean amount of time it takes them to deliver an order is 45 minutes after the order is placed. The

Bad White [126]

Answer:

We need to conduct a hypothesis in order to check if the true mean is different from 45(alternative hypothesis), and then the system of hypothesis would be:

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Step-by-step explanation:

Data given and notation

$\bar X=48$ represent the sample mean

$s=10$ represent the sample standard deviation

$n$ sample size

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$\alpha=0.05$ represent the significance level for the hypothesis test.

z would represent the statistic (variable of interest)

$p_v$ represent the p value for the test (variable of interest)

System of hypothesis

We need to conduct a hypothesis in order to check if the true mean is different from 45(alternative hypothesis), and then the system of hypothesis would be:

Null hypothesis: $\mu =45$

Alternative hypothesis: $\mu \neq 45$

Since we don't know the sample size we can't calculate the statistic and the only thing that we can do is create the sytem of hypothesis.

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4 years ago

What are the x-intercept and y-intercept of the graph of y=−12x+4y=−12x+4 ?

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y=−12x+4

y=−12(0)+4 = 4<--------y-intercept

0=−12x+4
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3 years ago