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Sonbull [250]
3 years ago
6

True or false when a figure has an enlargement, the figure gets smaller​

Mathematics
2 answers:
Stels [109]3 years ago
8 0

Answer:

False.

Step-by-step explanation:

False.

To enlarge means to become bigger.

Julli [10]3 years ago
3 0

Answer:

False

Step-by-step explanation:

When something is enlarged, it gets bigger, when it(the item) is minimized it becomes smaller.

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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

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3 years ago
If a is directly proportional to b/2 and a=1 when b=10, what is the value of a when b=35
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The value of a would be 3.5, as a=1 when b=10 means that a is worth 1/10 of b's value. 
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3 years ago
So what s the meaning for X and Y
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The first x is the horizontal coodinate (abscisa) and second is the vertical coordinate (ordenate). Both are coordinates. (x,y) has the meaning of a complex number: x is the real part and y is the imaginary part: x+yi. (x,y) has the meaning of a plane's vector from origin of coordinates.

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ikadub [295]
<span>the value of the number one in 61 is 1
hope it helps</span>
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3 years ago
Read 2 more answers
I need help!!!!!!!!!!!
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Answer:

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