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notsponge [240]
2 years ago
15

13. Show that 500 is not a prefect square​

Mathematics
1 answer:
avanturin [10]2 years ago
3 0

Answer:

when we take the square root of 500 we get number with decimal value so its not a perfect square

Step-by-step explanation:

x^2=500

x=square root of 500

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Blue moon equals to ?​
motikmotik
It is the appearance of two full moons in a calendar month.
6 0
3 years ago
Which sequence of transformations creates triangles that are similar instead of congruent?
Anvisha [2.4K]

Answer:

Option D. dilation and reflection

Step-by-step explanation:

we know that

A reflection, rotation and a translation transformations, creates a triangles that are congruent

A dilation transformation, create a triangles that are similar

therefore

the answer is the option D

8 0
3 years ago
Read 2 more answers
There were 2430 Major League Baseball games played in 2009, and the home team won the game in 53% of the games. If we consider t
Ivahew [28]

Answer:

z=\frac{0.53 -0.5}{\sqrt{\frac{0.5(1-0.5)}{2430}}}=2.958  

p_v =P(Z>2.958)=0.0015  

So the p value obtained was a very low value and using the significance level given \alpha=0.05 we have p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 5% of significance the proportion is significantly higher than 0.5 .  

Step-by-step explanation:

1) Data given and notation  

n=2430 represent the random sample taken

\hat p=0.53 estimated proportion when the home team won the game

p_o=0.5 is the value that we want to test

\alpha=0.05 represent the significance level

Confidence=95% or 0.95

z would represent the statistic (variable of interest)

p_v represent the p value (variable of interest)  

2) Concepts and formulas to use  

We need to conduct a hypothesis in order to test the claim that the proportion is higher than 0.5 or 50%:  

Null hypothesis:p\leq 0.5  

Alternative hypothesis:p > 0.5  

When we conduct a proportion test we need to use the z statistic, and the is given by:  

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

The One-Sample Proportion Test is used to assess whether a population proportion \hat p is significantly different from a hypothesized value p_o.

3) Calculate the statistic  

Since we have all the info requires we can replace in formula (1) like this:  

z=\frac{0.53 -0.5}{\sqrt{\frac{0.5(1-0.5)}{2430}}}=2.958  

4) Statistical decision  

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.  

The significance level provided \alpha=0.05. The next step would be calculate the p value for this test.  

Since is a right tailed test the p value would be:  

p_v =P(Z>2.958)=0.0015  

So the p value obtained was a very low value and using the significance level given \alpha=0.05 we have p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 5% of significance the proportion is significantly higher than 0.5 .  

8 0
3 years ago
There are 5 gallons of distilled water in science supplies. If 8 students each use an equal amount of distilled water and there
Maurinko [17]

Answer:

0.5 gallon

Step-by-step explanation:

let x refer to students

5 = 8x + 1

8x = 4

x= 0.5 gallon

7 0
2 years ago
What are the next three terms in the sequence? -3, 6, 15, 24
bearhunter [10]
Its adding 9 every time.
-3, 6, 15, 24, 33, 42, 51, 60
7 0
2 years ago
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