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Mice21 [21]
3 years ago
10

Hello, just need the answer for this question. Thank you for your help if you do so.

Mathematics
1 answer:
musickatia [10]3 years ago
7 0

Answer:

In the first one you are missing (x - 3) so it will be 4(x - 3) and if you factor it out it will be 4x - 12

In the second one you are missing a (x -5)which means 9x(x -5) or when you factor it out it will be 9x^2 - 45x

Step-by-step explanation:

3x^2 -23x + 40 = (3x - 8) (x - 5)

3x^2 -17x + 24 = (3x -8) ( x - 3)

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a driver starts his parked car and within 5 seconds reaches a speed of 60km/h as he travels east. what is his acceleration
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a = \tfrac{v}{t}

a = \tfrac{60km/hr}{5s}

a = \boxed{12 km/hr/s }

Hope this helps :D
7 0
4 years ago
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The cabin is worth $730,000. John paid $468,475.00, Sissy paid $251,525.12.
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Solve the equation 4(c-3)-8
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Answer:

Step-by-step explanation:

6 0
3 years ago
Find the slope of the line passing through the points -2,7 and -6,3
Helga [31]

Answer: the slope is 1

Step-by-step explanation:

m = y2 - y1 / x2 - x1

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6 0
2 years ago
A social psychologist predicted that ratings of an individual’s social desirability would be influenced by their physical attrac
marshall27 [118]

Answer:

It is stated in the query that the more attractive the individual, the higher their rank of desirability.

Step-by-step explanation:

This means that we should conclude that the alternative explanation of "higher degree of desire contributes to higher levels of social attractiveness"

In the event of a null hypothesis, we will believe that the degree of attractiveness has no impact on the score of cultural desirability.

(1) Null hypothesis:- The level of attraction does not have an impact on the rating of social desirability.

(2) Alternate hypothesis:- The level of attraction has a positive effect on the ranking of social desirability.

(3) The error of Type I is characterized as the rejection of the true null hypothesis. Therefore, in this case, the type I mistake would be that "the level of attraction has a positive effect on the rating of social desirability while the level of attraction does not have an impact on the rating of social desirability."

(4) The error of type II is characterized as the failure to reject the false null hypothesis. Thus, in this situation, the Type II error would be that "the level of attraction has no impact on the rating of social desirability while the real level of attraction has a positive effect on the rating of social desirability."

(5) We know that the likelihood of having a Form I error is equal to the degree of significance (in percent terms). The significance level, in this case, is 0.05, so the likelihood of making a form I error is 0.05 * 100=5 percent.

Therefore, there is a 5 percent risk of making a Type I mistake.

3 0
3 years ago
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