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3 years ago

P(x)=3x^3+64x^2+64x+27, find all the possible zeros

1 answer:

galina1969 [7]3 years ago

4 0

If you have a TI-84 graphing calculator, you should type the function in using the y= key and hit 2nd calculate to let the calculator calculate the zeroes for you.
x=-20.30, the rest are imaginary

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All common factors of 24

svetoff [14.1K]

Answer:

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2 years ago

The position of a passenger train that is traveling at an initial speed of 14 feet per second and continues to accelerate can be

salantis [7]

Solving the system of equations, it is found that a viable time that the trains are side by side is given by:

B. 15 sec

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the equations are:

$y = 14t^2$

$y = 130t + 1200$

They will be side by side when:

$14t^2 = 130t + 1200$

$14t^2 - 130t - 1200 = 0$

It's solution is a quadratic function with coefficients a = 14, b = -130, c = -1200, hence:

$\Delta = (-130)^2 - 4(14)(-1200) = 84100$

$x_1 = \frac{130 + \sqrt{84100}}{28} = 15$

$x_2 = \frac{130 - \sqrt{84100}}{28} = -5.71$

Time is a non-negative measure, hence option B is correct.

More can be learned about a system of equations at brainly.com/question/24342899

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Answer:

Step-by-step explanation:

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3 years ago