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faltersainse [42]
2 years ago
14

If x+4 is a factor of x^2-ax-12a and a is a constant, what is the value of a?

SAT
1 answer:
Artyom0805 [142]2 years ago
8 0

Answer:

x^{2} -ax-12a=(x+4)(x-4-a)-8a+16\\x+4 is a factor of x^2-ax-12a\\-8a+16=0\\a=2

Explanation:

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Critically discuss the teachers attibute ,values and attitudesin leading the school
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Answer:

The five frequently discussed attitudes and actions include: a genuine caring and kindness of the teacher, a willingness to share the responsibility involved in a classroom, a sincere sensitivity to the students' diversity, a motivation to provide meaningful learning experiences for all students, and an enthusiasm

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Which of these sentences is an opinion a light pollution is an overuse of artificial light and can create negative ecological co
Gala2k [10]

Answer:

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Explanation:

an opinion is what someone thinks is true but someone else might thing a different way. In this case, the speaker thinks tha a truly dark sky at night is one of the most magical experiances someone can have. someone else might contradict this opinion by saying that its not a magical experiance. The first sentance isn't an opinion because it states that light pollution is an overuse of artificial light and it can cause bad consequences. this is a fact because it's true. The last sentance is a fact because it states something that is happening in the world as well.

I hope this helps you!

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The lines that best support her claims are:

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<h3><u>Learning by reading</u> </h3>

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Find out more about the importance of reading at brainly.com/question/24377923.

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