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Nikolay [14]
3 years ago
12

Which of the following numbers is shown plotted on the number line ? I need help!

Mathematics
1 answer:
jarptica [38.1K]3 years ago
5 0

Answer:

Step-by-step explanation:

-3 3/8

Count back from 0 and it's a negative.

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The opposite of 3.78 is -3.78
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Which is a true statement about the equation 30 = 6 × 5?
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I think the answer is Letter C - 0.032.

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Enter the number of complex zeros for the polynomial function in the box.
Finger [1]

Given polynomial function:

f(x)=x^3-96x^2+400.

We need to apply Descartes' rule of sign to identify the number of complex roots.

The given polynomial is f(x)=x^3-96x^2+400

Let us see the number of sign changes in f(x)

There are 2 sign changes in f(x). One from plus to minus and second from plus to minus. Hence, there 2 or 0 positive roots.

Now, let us see the number of sign changes in f(-x)

f(-x)=-x^3-96x^2+400

There are only one sign change. Hence, there will be 1 negative roots.

The degree of the polynomial is 3.

Hence, there will be exactly 3 zeros.

<em>Therefore, the possible numbers of zeros are:</em>

<em>2 positive, 1 negative and 0 complex</em>

<em>0 positive, 1 negative and 2 complex.</em>

Let us see the graph:

In the graph, we can see that the graph cuts the x axis at three points (2 positive, 1 negative points).

<h3>Hence, the number of complex zeros for the given polynomial is zero.</h3>

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