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3 years ago

9

Multiply and simplify the following complex numbers: (3 – 4i) · (–3+ 2i)

1 answer:

BigorU [14]3 years ago

5 0

Answer:

The answer is -1 + 18

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Determined if the graph represents a polynomial function if it does determine the number of turning points and the least degree

skelet666 [1.2K]

<em>The graph of f is a polynomial function</em>
<em>There are two turning points, namely, x = 0 and x = -2</em>

<h2>Explanation:</h2>

A polynomial function in one variable is given by the form:

$f(x)=a_{n}x^n+a_{n-1}x^{n-1}+\cdots +a_{2}x^2+a_{1}x+a_{0}$

Since you haven't provided any expression, I'll choose the following function:

$f(x)=x^{3}+3x^{2}+3$

So this is indeed a polynomial function. A turning point is an x-value where we have either a local maximum or local minimum. So we need to take the derivative of this functions:

$f'(x)=3x^2+6x \\ \\ Finding \ turning \ points: \\ \\ 3x^2+6x=0 \\ \\ x(3x+6)=0 \\ \\ \\ So: \\ \\ x=0 \\ \\ and \\ \\ \ 3x+6=0 \therefore \ \boxed{x=-2}$

Conclusion:

<em>The graph of f is a polynomial function</em>
<em>There are two turning points, namely, x = 0 and x = -2</em>

<em />

<h2>Learn more:</h2>

Polynomial function: brainly.com/question/13729121

#LearnWithBrainly

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3 years ago

During strenuous exercise, an athlete can burn 12 calories per minute on a treadmill and 8.5 calories per minute on an elliptica

Irina18 [472]

Hope it helps 10 mins on the elliptical and 12 on the treadmil

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3 years ago

Eric is saving $60 every week to buy a new laptop that costs $480. He has already saved $180.

Rama09 [41]

Answer:

Step-by-step explanation:

You saved $200 on a laptop you purchased online. If this was a 25% savings from the original price, find the original cost of the laptop.

13,962 results

Math

You saved $200 on a laptop you purchased online. If this was a 25% savings from the original price, find the original cost of the laptop.

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3 years ago

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Trigonometry<br> Reference Angles and Triangles<br> The value of Sin 440* is equal to?

Lunna [17]

Answer:

0.985

Step-by-step explanation:

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3 years ago

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"Eight more than twice a number" can be written as what algebraic expression?

Ainat [17]

" 8 more "....means add 8
" twice a number " means multiply the number by 2

ur expression is : 2n + 8

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4 years ago

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