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igomit [66]
2 years ago
8

What is the answer to this how to work it

Mathematics
1 answer:
Anna007 [38]2 years ago
7 0

9514 1404 393

Answer:

  (A)  -7

Step-by-step explanation:

The function is continuous if you can draw its graph without lifting your pencil. In this case, that means each of the piecewise function definitions must have the same value at x=3.

  x^2 +2 = 6x +k  . . . . . must be true at x=3

  3^2 +2 = 6(3) +k . . . . substitute 3 for x

  9 +2 -18 = k . . . . . . . . subtract 18

  k = -7 . . . . . . . simplify

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Step-by-step explanation:

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Deanna gets 3 problems incorrect on her math quiz and scores 85%. How many questions were on the quiz?
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Answer:

There were 20 questions on the quiz

Step-by-step explanation:

In this question, we are concerned with knowing the number of questions on a quiz, given that Deana had a certain percentage after scoring an amount of marks.

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Let the number of questions on the quiz be X.

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