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2 years ago

-9 ÷ ____ =5(fill the blank)

Mathematics

2 answers:

Zigmanuir [339]2 years ago

4 0

Answer:

-1.8

Step-by-step explanation:

You can reverse it by doing -9/5 and you get -1.8.

Hope this helps! Pls give brainliest!

Alona [7]2 years ago

3 0

Answer:

The answer is -1.8

Step-by-step explanation:

5 x -1.8 = -9 = -9 divided by -1.8 = 5

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Step-by-step explanation:

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Vera_Pavlovna [14]

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11/16

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2 years ago

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:

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

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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: $p=0.45$