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1 month ago

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Martha wrote an example of a quadratic function for a homework assignment. The function she wrote is shown. f(x) = 5x3 + 2x2 + 7

x – 3 What possible changes can Martha make to correct her homework assignment? Select two options. The first term, 5x3, can be eliminated. The exponent on the first term, 5x3, can be changed to a 2 and then combined with the second term, 2x2. The exponent on the second term, 2x2, can be changed to a 3 and then combined with the first term, 5x3. The constant, –3, can be changed to a variable. The 7x can be eliminated.

2 answers:

AnnZ [12.3K]1 month ago

8 0

Answer:

The correct options are:

The term 5x³ can be removed

The power of the first term, 5x³, can be modified to 2 and combined with the second term, 2x²

Explanation:

The degree of an expression is identified by its highest exponent.

The expression in question is:

5x³ + 2x² + 7x - 3

Observing this, we see that the highest exponent is 3, indicating that the expression’s degree is 3.

A quadratic function is defined as having degree 2, meaning the highest degree must be 2.

Thus, Martha must eliminate the term with degree 3 (5x³) from her function.

This can be achieved through two methods:

1- She can simply remove the term with the third degree.

2- She can change the term with degree 3 to a lower degree and combine it with an existing like term.

Evaluating the options, we conclude the two accurate choices are:

- The term 5x³ can be eliminated.

- The exponent on the first term, 5x³, can be reduced to 2 and subsequently joined with the second term, 2x².

I hope this is helpful!:)

Leona [12.6K]1 month ago

4 0

Response: Options A and B for edg 2020

Detailed explanation:

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Step-by-step explanation:

Previous concepts

Normal distribution refers to a symmetric probability distribution centered around the mean, indicating that occurrences near the mean are more common than those far from it.

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Part a

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We seek the probability:

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The most effective way to solve this is by leveraging the normal distribution and the corresponding Z-score:

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$P(z>1.43)=1-P(z$

Part b

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This probability can also be computed using either the normal standard distribution, an excel sheet, or a calculator.

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$P(-1.43$

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