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3 years ago

Multiply and simplify. (x - 1)(x - 1)(x - 1) Help i need this for algebra

Mathematics

1 answer:

SVETLANKA909090 [29]3 years ago

5 0

3x-3 is the correct answer

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KiRa [710]

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4 years ago

Read 2 more answers

Does anyone know keeper of the lost cities??<br> DO NOT ANSWER IF YOU DON'T KNOW IT

zvonat [6]

Answer:

yes

Step-by-step explanationonly

only read first book though

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3 years ago

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A publisher reports that 45% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is

nexus9112 [7]

Answer:

$z=\frac{0.40 -0.45}{\sqrt{\frac{0.45(1-0.45)}{370}}}=-1.933$

$p_v =2*P(z$

Step-by-step explanation:

Information given

n=370 represent the sample selected

$\hat p=0.4$ estimated proportion of readers owned a laptop

$p_o=0.45$ is the value that we want to test

z would represent the statistic

$p_v$ represent the p value

Creating the hypothesis

We need to conduct a hypothesis in order to test if the true proportion of readers owned a laptop is different from 0.45, the system of hypothesis are:

Null hypothesis: $p=0.45$

Alternative hypothesis: $p \neq 0.45$

The statistic is:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

Replacing we got:

$z=\frac{0.40 -0.45}{\sqrt{\frac{0.45(1-0.45)}{370}}}=-1.933$

Calculating the p value

We have a bilateral test so then the p value would be:

$p_v =2*P(z$

8 0

3 years ago

A bag contains 2 red marbles, 4 blue marbles and 8 green marbles. If two marbles are drawn out of the bag, what is the probabili

Hoochie [10]

Answer:

0.1

Step-by-step explanation:

total number of marbles= 2+4+8=14 marbles

probability of getting 2blue

= 4/14×3/13= 4×3/14×13=12/182= 0.06593

to the nearest tenth= 0.1

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2 years ago

What is the linear function that best fits the data set?

melisa1 [442]

Answer: Fourth option y=-3x+15
Please, see the attached file.
Thanks.

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3 years ago