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3 years ago

What is compatible numbers for 762 and 332

Mathematics

1 answer:

dsp733 years ago

5 0

40-10=30 are compatible numbers

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Can I see detailed calculation for Dash?

egoroff_w [7]

I think you can, sorry if i’m wrong

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3 years ago

9. It costs $30 for 2 hours of ice

adell [148]

Answer:

90$

Step-by-step explanation:

First divide 6 by 2 to get 3 then multiply 30 by that value

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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

For Thanksgiving dinner, Josie purchased three cans of cranberry sauce that cost $0.78 each. She gave the cashier $10.00. How mu

VMariaS [17]

Answer:

$7.66

Step-by-step explanation:

$0.78 \times 3 = 2.34$

$10.00 - 2.34 = 7.66$

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3 years ago

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Here are the fuel efficiencies (in mpg) of 10 new cars.

Alenkasestr [34]

Answer:

20%

Step-by-step explanation:

Cars that are less than 19 mpg : 16, 18

2 cars have less than 19 mpg.

2/10 cars have less than 19 mpg.

To change fraction to percentage :

divide the numerator by the denominator, then multiply the decimal by 100

2/10 = 0.2

0.2*100 = 20

20%

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3 years ago