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borishaifa [10]
3 years ago
12

For his birthday, Luke got a new drone. According to the box, the drone can fly as fast as 1,100 feet per minute. Luke thinks th

at sounds too fast to be realistic, so he wants to convert the speed to more familiar units, like miles per hour. How many miles could the drone travel in an hour?
Mathematics
1 answer:
Ket [755]3 years ago
6 0

Answer:

12.5 miles per hour

Step-by-step explanation:

1,100 ft/min * (60 min)/(1 hr) * (1 mile)/(5280 ft) = 12.5 miles/hr

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Shalnov [3]
The answer is 0.875.
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4 years ago
Read 2 more answers
A machine that fills beverage cans is supposed to put 12 ounces of beverage in each can. The standard deviation of the amount in
erica [24]

Answer:

\chi^2 =\frac{10-1}{0.0144} 0.0217 =13.54

The degrees of freedom are:

df=n-1=10-1=9

Now we can calculate the p value using the alternative hypothesis:

p_v =2*P(\chi^2 >13.54)=0.279

Since the p value is higher than the signficance level assumed of 0.05 we have enough evidence to FAIL to reject the null hypothesis and there is no evidence to conclude that the true deviation differs from 0.12 ounces

Step-by-step explanation:

Assuming the following data:"12.14 12.05 12.27 11.89 12.06

12.14 12.05 12.38 11.92 12.14"

We can calculate the sample deviation with this formula:

s =\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}

n=10 represent the sample size

\alpha=0.05 represent the confidence level  

s^2 =0.0217 represent the sample variance

\sigma^2_0 =0.12^2= 0.0144 represent the value to verify

Null and alternative hypothesis

We want to determine whether the standard deviation differs from 0.12 ounce, so the system of hypothesis would be:

Null Hypothesis: \sigma^2 = 0.0144

Alternative hypothesis: \sigma^2 \neq 0.0144

The statistic can be calculated like this;

\chi^2 =\frac{n-1}{\sigma^2_0} s^2

\chi^2 =\frac{10-1}{0.0144} 0.0217 =13.54

The degrees of freedom are:

df=n-1=10-1=9

Now we can calculate the p value using the alternative hypothesis:

p_v =2*P(\chi^2 >13.54)=0.279

Since the p value is higher than the signficance level assumed of 0.05 we have enough evidence to FAIL to reject the null hypothesis and there is no evidence to conclude that the true deviation differs from 0.12 ounces

7 0
3 years ago
How many feet are in 333 miles?
zheka24 [161]

Answer:

1,758,240 Feet

Step-by-step explanation:

1 Mile = 5280 Feet

333 Miles = 1,758,240 Feet

6 0
3 years ago
Find the area of the trapezoid 14.5 8 19.5​
Svetlanka [38]

Step-by-step explanation:

Which one is the height?¿

The formula is

b1+b2 divided by 2 times the height

That's the best I can do for you atm atleast.

8 0
3 years ago
Rob is setting up a model train track that is 3 and 3 over 8feet long. No telephone pole is needed at the start of the track. Ho
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So, \frac{3*3}{8} 
 is 9/8 so its 3 poles
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