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ehidna [41]
3 years ago
9

An equation has solutions of m = _5 and m = 9. Which could be the equation?

Mathematics
2 answers:
Anni [7]3 years ago
5 0
I think the correct answer from the choices listed above is the first option. The equation (m + 5)(m - 9) = 0 has <span>solutions of m = -5 and m = 9. Hope this answers the question. Have a nice day. Feel free to ask more questions. Thank you.</span>
zhannawk [14.2K]3 years ago
5 0

Answer:

A. (m+5)(m-9)=0

Step-by-step explanation:

We have been given that an equation has solutions of m=-5 and m=9. We are asked to the equation, which represents these solutions.

Let us check our given choices:

A. (m+5)(m-9)=0

Using zero product property, we will get:

m+5=0\text{ (or) }m-9=0

m+5-5=0-5\text{ (or) }m-9+9=0+9

m=-5\text{ (or) }m=9

Therefore, option A is the correct choice.

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6 0
3 years ago
We have five samples of data: sample A with 30 successes of 50 cases, sample B with 600 successes of 1000 cases, sample C with 3
faust18 [17]

Answer:

C. with 3000 successes of 5000 cases sample

Step-by-step explanation:

Given that we need to test if the proportion of success is greater than 0.5.

From the given options, we can see that they all have the same proportion which equals to;

Proportion p = 30/50 = 600/1000 = 0.6

p = 0.6

But we can notice that the number of samples in each case is different.

Test statistic z score can be calculated with the formula below;

z = (p^−po)/√{po(1−po)/n}

Where,

z= Test statistics

n = Sample size

po = Null hypothesized value

p^ = Observed proportion

Since all other variables are the same for all the cases except sample size, from the formula for the test statistics we can see that the higher the value of sample size (n) the higher the test statistics (z) and the highest z gives the strongest evidence for the alternative hypothesis. So the option with the highest sample size gives the strongest evidence for the alternative hypothesis.

Therefore, option C with sample size 5000 and proportion 0.6 has the highest sample size. Hence, option C gives the strongest evidence for the alternative hypothesis

3 0
3 years ago
1/2x+5=1/3x what do you multiply the equation by in order to get rid of the fractions in the problem
earnstyle [38]

Answer:

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6 0
3 years ago
Plzzzzzz help ASAP!!!!!
LiRa [457]
The answer would be A
7 0
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