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Cloud [144]
2 years ago
15

Which unit of measure would be appropriate for the volume of a spher with a radius of 2 meters

Mathematics
1 answer:
svetlana [45]2 years ago
6 0

Answer:

Meters cubed :)

Step-by-step explanation:

It is 3d, so it is cubed!

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The current temperature is 8 degrees fahrenheit. By how many degrees does the temperature need to change to reach 7 degrees fahr
trapecia [35]

Answer:

-8-7= 15

so the answer is 15

Step-by-step explanation:

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Terry’s average driving speed for a 2 and a half hour trip was 58 mph. How far did Terry travel?
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Is it is multiplication it is 116 in division 29
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11 points!!!!!!! and brainiest
BartSMP [9]

Answer:

B. -13

Step-by-step explanation:

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2 years ago
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Consider a drug testing company that provides a test for marijuana usage. Among 310 tested​ subjects, results from 28 subjects w
Naily [24]

Answer:

z=\frac{0.0903 -0.1}{\sqrt{\frac{0.1(1-0.1)}{310}}}=-0.569  

The p value for this case can be calculated with this probability:

p_v =P(z  

Since the p value is higher than significance level we don't have enough evidence to conclude that the true proportion is significantly less than 0.1

Step-by-step explanation:

Information given

n=310 represent th sample selected

X=28 represent the subjects wrong

\hat p=\frac{28}{310}=0.0903 estimated proportion of subjects wrong

p_o=0.1 is the value to verify

\alpha=0.05 represent the significance level

t would represent the statistic

p_v represent the p value

System of hypothesis

We want to test the claim that less than 10 percent of the test results are wrong ,and the hypothesis are:  

Null hypothesis:p\geq 0.1  

Alternative hypothesis:p < 0.1  

The statistic is given by:

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

Replacing the info we got:

z=\frac{0.0903 -0.1}{\sqrt{\frac{0.1(1-0.1)}{310}}}=-0.569  

The p value for this case can be calculated with this probability:

p_v =P(z  

Since the p value is higher than significance level we don't have enough evidence to conclude that the true proportion is significantly less than 0.1

5 0
3 years ago
Shelly paid $8.84 for a pizza. This amount includes a sales tax of 4%. What was the cost of the pizza before tax?
lorasvet [3.4K]

Answer:

$8.50

Step-by-step explanation:

let the price before tax be $x

given that the sales tax rate is 4%, hence the amount she paid in taxes

= 4% of x

= (4/100)x

= 0.04x

We can now build an equation for what she paid:

Amount Paid = price before tax + amount paid in taxes

8.84 = x + 0.04x

8.84 = 1.04x   (divide both sides by 1.04 and rearranging)

x = 8.84 / 1.04

x = $8.50

7 0
2 years ago
Read 2 more answers
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