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sp2606 [1]
2 years ago
14

Solve for d. 41 = 12 d _ 7 d

Mathematics
1 answer:
ICE Princess25 [194]2 years ago
3 0

Answer:

d=4

Step-by-step explanation:

41=12d-7

In this scenario we need to isolate the variable.

Start by adding 7 to both sides:

41+7=12d-7+7

48=12d

Divide both sides by 12:

\frac{48}{12}=\frac{12d}{12}

d=4

Substitute 4 for d to check our answer:

41=12d-7\\41=12(4)-7\\41=48-7\\41=41\rightarrow\text{correct!}

Therefore the answer is:

d=4

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The zeros of the cubic function f(x) = 2x³ - 6x² - 16x - 20 are given as follows:

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<h3>How to obtain the solutions to the equation?</h3>

The equation is defined by the rule presented as follows:

f(x) = 2x³ - 6x² - 16x - 20.

One solution for the equation is given as follows:

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Because f(5) = 0.

Then (x - 5) is a linear factor of the function f(x), which can be written as follows:

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Now we expand the right side to begin finding the coefficients of the quadratic function that we are going to solve to find the remaining zeros:

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Then these coefficients are obtained comparing the left and the right side of the equality as follows:

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Hence the equation is:

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Using a quadratic equation calculator, the remaining zeros are given as follows:

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  • x = -1 - i.

More can be learned about the solutions of an equation at brainly.com/question/25896797

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