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Hoochie [10]
3 years ago
9

(-2xy + 3 )(xy-1) e cần câu trả lời gấp ạ

Mathematics
1 answer:
Vikki [24]3 years ago
7 0
(-2xy+3)(xy-1)
-2x²y²+2xy+3xy-3
-2x²y²+5xy-3

Hope my answer helped u :)
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Irrational numbers are closed under subtraction true/false
Sergeu [11.5K]

Answer:

False!

Step-by-step explanation:

hope this helps, have a good day! :)

3 0
3 years ago
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Find the 12th term of an AP of the form 7, 12, 17, 22
ikadub [295]
Answer: 62

Step-by-Step Explanation:

First Term (a) = 7
Common Difference (d) = 12 - 7 = 5
Term to Find (n) = 12th

Therefore, finding the 12th Term :-
=> a+(n-1)d
= 7 + (12 - 1)5
= 7 + (11)5
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Hence, 12th Term of this AP is 62
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In Davidson Corporation, the first shift
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Harley Davidson?

Step-by-step explanation:

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2 years ago
What is the area of a circle if the radius is 13
Kisachek [45]
A = pi * r^2.....r = radius and pi = 3.14

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7 0
3 years ago
The CEO of a software company is committed to expanding the proportion of highly qualified women in the organization’s staff of
pishuonlain [190]

Answer:

Null Hypothesis, H_0 : p \geq 45%    

Alternate Hypothesis, H_A : p < 45%

Step-by-step explanation:

We are given that the proportion of women in similar sales positions across the country in 2004 is less than 45%.

The collected random sample of size 50 showed that only 18 were women.

<u><em>Let p = proportion of women in similar sales positions across the country in 2004</em></u>

So, Null Hypothesis, H_0 : p \geq 45%    

Alternate Hypothesis, H_A : p < 45%

Here, <u><em>null hypothesis states that</em></u> the proportion of women in similar sales positions across the country in 2004 is more than or equal to 45%.

On the other hand, <u><em>alternate hypothesis states that</em></u> the proportion of women in similar sales positions across the country in 2004 is less than 45%.

The test statistics that would be used here is One-sample z proportion test statistics, i.e;

                        T.S.  =  \frac{\hat p -p}{\sqrt{\frac{\hta p(1-\hat p)}{n} } }  ~ N(0,1)

Hence, the above hypothesis is appropriate for the given situation.

4 0
3 years ago
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