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sammy [17]
3 years ago
15

What is the square root of -225

Mathematics
2 answers:
NemiM [27]3 years ago
8 0

Answer:

15i

Step-by-step explanation:

since 15 x 15 is 225, the imaginary number comes into play here. i x i = -1, so 15i x 15i = -225

Alecsey [184]3 years ago
5 0

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.  

15i

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F(x) = x (x^3 - x^2 + x + 1)

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3 years ago
In a certain Algebra 2 class of 21 students, 14 of them play basketball and 9 of them play baseball. There are 3 students who pl
omeli [17]

Answer:

basketball= 66.66 infinite%

baseball=42.86%

Step-by-step explanation:

if you divide 14 by 21 you get .66 infinite which is 66.66 infinite%

divide 9 by 21 you get around .4286 which is 42.86%

7 0
4 years ago
Can someone please help me with these two questions ​
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Answer:

  23.  0.4583 seconds

  24.  0.0107 seconds

Step-by-step explanation:

The problem statement tells you how to work it. You need to convert speed from miles per hour to feet (or inches) per second.

 90 mi/h = (90·5280 ft)/(3600 s) = 132 ft/s = (132·12 in)/s = 1584 in/s

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23. The time it takes for the ball to travel 60.5 ft is ...

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It takes 458.3 milliseconds to reach home plate.

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24. time = distance/speed

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4 0
3 years ago
Can someone please solve number 2 ! I would literally love you forever !!!!
nadya68 [22]

Answer:

sorry i wish i knew how but i would like to give you aomething other than an answer for your question and i hope this is ok.

Step-by-step explanation:

every day is a new day and a new opportunity to change the world no matter how BIG or how small.  even if you make mistakes. always remember this though. whatever you put into the world, whether it be good or bad, it will always come back three times.

meaning that when you do something good something three times as good will happen to you. The same is so for bad except it would be 3 times as bad as will happen to you.   I hope your day is great and may you do many great things.

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In stats would a test looking at gender & holiday preference would I do a Chi-squared test? Which is the explanatory & w
Liula [17]

In statistics, a Chi-squared test may be used to determine holiday choice and gender and α (alpha) is the response variable.

<h3>What is the Chi-squared test? </h3>

A statistical technique called the chi-square test is used to compare actual outcomes with predictions.

The goal of this test is to establish if a discrepancy between actual and predicted data is the result of chance or a correlation between the variables you are researching.

Whether there is a statistically significant association between categorical variables is determined by the Chi-square test of independence.

This issue is addressed by a hypothesis test. The chi-square test of association is another name for this assessment.

Hence,in stats would a test looking at gender & holiday preference yes you can do  a Chi-squared test and α(alpha) is the response variable.

To learn more about the Chi-squared test refer;

brainly.com/question/14082240

#SPJ1

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2 years ago
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