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lara31 [8.8K]
3 years ago
6

2⋅10^ 4 −7 ^3 =? First person to solve gets 10 Points and will also be rewarding branliest answer (Btw already know this answer

just giving points and being nice)
Mathematics
1 answer:
8_murik_8 [283]3 years ago
5 0

Answer:

19657

Step-by-step explanation:

2\cdot 10^4 - 7^3=20000-343=19657

Hope this helps!

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Solving a Work Problem
RUDIKE [14]

Answer:

3.4 hours

Step-by-step explanation:

6 0
3 years ago
A researcher is interested in knowing whether responses to lowering the legal age for drinking alcohol varies by gender. Which s
likoan [24]

The statistical test that would be most appropriate determine the answer the researcher is interest in knowing is a chi-square test.

<h3>What is a chi-square test?</h3>

A chi-square test is a statistical test used to test the relationship between categorical variables. It is used to determine the difference between the expected data and the observed data is due to chance.

Chi squared = \frac{(O_{i} - E_{i} )^{2} }{E_{i} }

Where:

  • O_{i} = observed value
  • E_{i} = expected value.

The researcher is interested in knowing if the response to lowering the legal age for drinking alochol (observed value)) varies by gender (expected value). Thus, a chi-square test would be used.

To learn more about chi-square, please check: brainly.com/question/14082240

8 0
2 years ago
A. 2(x + 1) - 7 = 5<br> x=?
vovikov84 [41]

Answer:

x=5

Step-by-step explanation:

2x+2-7=5

2x-5=5

2x=10

x=5

8 0
3 years ago
NCr/nPr=r!<br><br> give proof.
Sergio [31]
<span>It's 1/r! 

nCr = n! / r!(n-r)! 
nPr = n! / (n-r)! 

If you divide the two you'd have: 

n! / r! (n-r)! * (n-r)! / n! = 1/r!

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
</span>
3 0
3 years ago
Can someone pls help?
Sergio [31]
<h3>Answer:  x = 4</h3>

==================================================

Explanation:

Use the remote interior angle theorem. This says a pair of interior angles always add to the measure of the exterior angle that is not adjacent to any of the interior angles, so basically what your diagram is showing.

(interior angle C) + (interior angle D) = exterior angle

(46) + (-1+8x) = 18x+5

8x+45 = 18x+5

8x-18x = 5-45

-10x = -40

x = -40/(-10)

x = 4

5 0
3 years ago
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