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Katena32 [7]
2 years ago
7

Why can't the graphing calculator be used to solve (or approximate solutions to) all polynomial equations?

Mathematics
1 answer:
ipn [44]2 years ago
5 0
Because it is normally set to only find real roots, not complex roots

if you are smart, you can use the factor function and use your head to find those roots
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Haily paid $13 for 1 and 3/7 kf of sliced salami. What was the cost per kilogram of salami?
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13 divided by 1 and 3/7=9 and 1/10

$9.10

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A party mix requires 4 cups of cereal for every 8 bowls of mix. How much party mix is required per bowl
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If anybody now this pls help my homework due TOMORROW
Nezavi [6.7K]

Answer:

<u><em>Part A:</em></u> D. y = (x + 1)(x+3)\\

<u><em>Part B:</em></u> C. 3x(x-3) = 0\\

Step-by-step explanation:

For part A) we just have to plug in 0 for x and solve for y until we find the equation that says 3 is the value for y when x is 0. For purposes of speeding up the process the correct answer is D. I will show how to check for it now.

The equation: y = (x + 1)(x+3)

Now plug in 0 for x.

y = (0 + 1)(0+3)\\

Now solve.

y = (1)(3)

y = 3

This proves that this is the correct answer.

For part B) we just have to plug in the give values for x separately and check for each value of x that it equals 0. For the purpose of speeding up the process the correct answer is C. I will show how to check for it now.

The equation: 3x(x-3) = 0

Now plug in x for 0 and solve:

3* 0 (0-3) = 0\\

0(-3) = 0\\

0 =0\\

This equation is true, now we check for the other value of x, 3.

3*3(3-3) = 0\\

9(0) = 0\\

0 =0\\

This is also true so that means this is the correct answer.

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3 years ago
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