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marin [14]
3 years ago
15

Which method would i use to solve ax^2+c=d? justify your answer.

Mathematics
1 answer:
san4es73 [151]3 years ago
5 0

9514 1404 393

Answer:

  x = ±√((d -c)/a)

Step-by-step explanation:

The usual "solve for ..." approach works fine in this case.

  ax^2 +c = d

  ax^2 = d - c . . . . . subtract c

  x^2 = (d -c)/a . . . . divide by a

  x = ±√((d -c)/a) . . . take the square root

_____

When there are numbers, a graphical solution could work. It depends on whether an exact or approximate solution is required.

_____

<em>Comment on "solve for ..."</em>

When solving an equation for a specific variable, it is worthwhile to consider the Order of Operations. Look at what has been done to the variable, then undo those operations in reverse order. Here, the variable has been squared, the product multiplied by 'a', that product added to c. So, the "undo" consists of subtracting 'c', dividing by 'a', and taking the square root.

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3 years ago
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Answer:

Step-by-step explanation:

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3 years ago
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Step-by-step explanation:

Part 1) List the elements of the set

x is an integer for the interval (-1/2,9/2)

Remember that

-1/2=-0.5

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we know that

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therefore

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Part 2) List the elements of the set

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Part 3) List the elements of the set

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we know that

The 21 consonant letters in the English alphabet are

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so

The consonant of English alphabet which comes before k are

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therefore

The elements of the set are

{L, M, N, P, Q, R, S, T, V, W,X,Y, Z}

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3 years ago
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