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Alexxx [7]
3 years ago
7

Lola spent $65.00 for 10 tickets to the

Mathematics
1 answer:
8_murik_8 [283]3 years ago
5 0

Answer:a.yes b.yes c.no d. Yes

Step-by-step explanation: that should be correct

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Daniel drove 750 miles from his home to Texas. If x represents the number of hours Daniel drove, which expression could be
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Answer:750/x

Step-by-step explanation:

speed = distance ÷ time

= 750 ÷ x

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PLease help, i'm struggling and can't find the answer anywhere
anastassius [24]

Answer:

1/1024

Step-by-step explanation:

It can also be written as 1/4^5 and you just have to simplify it.

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3 years ago
A professor would like to test the hypothesis that the average number of minutes that a student needs to complete a statistics e
professor190 [17]

Answer:

\chi^2 =\frac{15-1}{25} 16 =8.96

The degrees of freedom are given by:

df = n-1 = 15-1=14

The p value for this case would be given by:

p_v =P(\chi^2

Since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviation is not ignificantly lower than 5 minutes

Step-by-step explanation:

Information given

n=15 represent the sample size

\alpha=0.05 represent the confidence level  

s^2 =16 represent the sample variance

\sigma^2_0 =25 represent the value that we want to  verify

System of hypothesis

We want to test if the true deviation for this case is lesss than 5minutes, so the system of hypothesis would be:

Null Hypothesis: \sigma^2 \geq 25

Alternative hypothesis: \sigma^2

The statistic is given by:

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

And replacing we got:

\chi^2 =\frac{15-1}{25} 16 =8.96

The degrees of freedom are given by:

df = n-1 = 15-1=14

The p value for this case would be given by:

p_v =P(\chi^2

Since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviation is not ignificantly lower than 5 minutes

6 0
3 years ago
On the first week of class, Lisa reads 45 pages in her history book. It takes her 8 minutes to read. The next week she reads 36
vagabundo [1.1K]

Answer:

I wanna say C  not positive but I think C

Step-by-step explanation:

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Translation of a 2D shape..<br> Due in tomorrow, please help! Xx
bazaltina [42]
(5,7) (5,4) (7,4) hope that helps
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3 years ago
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