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spin [16.1K]
3 years ago
15

6 of 12

Mathematics
2 answers:
Ganezh [65]3 years ago
8 0
The answer is 60km/h hope this helps have a great day !!
aleksklad [387]3 years ago
6 0

Answer:

60km/h

Step-by-step explanation:

180 ÷ 3 = 60

60km/h

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190080inch is the answer
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Determine if the ordered pairs represent a function.<br> {(2,5),(4,7), (2,9), (6,10)}
zalisa [80]

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No it does not represent a function

Step-by-step explanation:

It fails the vertical line test..

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1/2 ÷8 = <br><br> this on studyisland
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Step-by-step explanation:

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What are the roots of the polynomial equation x^3-5x+5=2x^2-5? Use a graphing calculator and a system of equations. Round nonint
leonid [27]

The right answer is c. –2.24, 2, 2.24


This question needs to be solved in two ways. First, using a graphing calculator. Next, using a system of equations.


1. Using a graphing calculator.


We have the following polynomial equation:

x^3-5x+5=2x^2-5


By ordering this equation we have:

x^3-2x^2-5x+10=0


So, we can say that this equation comes from a function given by:

f(x)=x^3-2x^2-5x+10


Thus, by plotting this function, we have that the graph of this function is indicated in Figure 1. By zooming, we can see, in Figure 2, that the roots of the polynomial equation are the x-intercepts of f(x) which are:


x_{1}=-2.236 \\ \\ x_{2}=2 \\ \\ x_{3}=2.236


Finally, rounding noninteger roots to the nearest hundredth we have:


\boxed{Root_{1}=-2.24} \\ \\ \boxed{Root_{2}=2} \\ \\ \boxed{Root_{3}=2.24}


2. Using a system of equations.


The ordered equation is:

x^3-2x^2-5x+10=0


By arranging to factor out we have:

x^3-5x-2x^2+10=0


Then, by factoring:

x(x^2-5)-2(x^2-5)=0


Term (x^2-5) is a common factor, thus:


(x-2)(x^2-5)=0 \\ \\ (x-2)(x-\sqrt{5})(x+\sqrt{5})=0 \\ \\ Finally: \\ \\ \boxed{Root_{1}=-\sqrt{5}=-2.24} \\ \\ \boxed{Root_{2}=2} \\ \\ \boxed{Root_{3}=\sqrt{5}=2.24}

6 0
3 years ago
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To the nearest tenth, what is the area of the shaded segment when AG = 6 ft?
baherus [9]
A. 10.3 ft^2 should be the right answer
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