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3 years ago

7

What is the minimum whole number of passengers who need to get off the elevator to meet the weight requirement

1 answer:

zepelin [54]3 years ago

5 0

Do you know the weight requirement

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Help me on this question

olganol [36]

Answer:

see below

Step-by-step explanation:

All of the given data sets have x-values that are sequential with a difference of 1. That makes it easy to determine the sort of sequence the y-values make.

<u>first choice</u>: the y-values have a common difference of -2. This will be matched by a linear model.

<u>second choice</u>: the y-values have a common difference of +2. Again, this will be matched by a linear model.

<u>third choice</u>: the y-values have a common ratio of -2. This will be matched by an exponential model.

<u>fourth choice</u>: the y-value differences are 3, 5, 7, increasing by a constant amount (2). This is characteristic of a sequence that has a quadratic model.

5 0

3 years ago

You want to test your newly created Web site, so you have 250 people access it from random locations at random times. Of the peo

Arte-miy333 [17]

Answer: 505

Step-by-step explanation:

The formula to find the sample size n , if the prior estimate of the population proportion (p) is known:

$n= p(1-p)(\dfrac{z}{E})^2$ , where E= margin of error and z = Critical z-value.

Let p be the population proportion of crashes.

Prior sample size = 250

No. of people experience computer crashes = 75

Prior proportion of crashes $p=\dfrac{75}{250}=0.3$

E= 0.04

From z-table , the z-value corresponding to 95% confidence interval = z=1.96

Required sample size will be :

$n=0.3(1-0.3)(\dfrac{1.96}{0.04})^2$ (Substitute all the values in the above formula)

$n= (0.21)(49)^2= 0.21\times2401$

$n= 504.21\approx505$ (Rounded to the next integer.)

∴ Required sample size = 505

6 0

3 years ago

A radio telescope has a parabolic surface, as shown below. If the telescope is 5 m deep and 40 m wide, how far is the focus from

Montano1993 [528]

Answer:

i think the answer is 8m

Step-by-step explanation:

4 0

3 years ago

4. You draw a single card from a standard deck of cards. What is the probability

zhenek [66]

OHHHHHHH..........OK

3 0

3 years ago

All of the following have the same unit price except _____.

Aliun [14]

2 1/2 for $6.25 is the answer

5 0

3 years ago

Read 2 more answers