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agasfer [191]
3 years ago
8

a survey was conducted with s students. 30% of those surveyed said that they have traveled out of the country. Of the students w

ho have never been out of the country, 40 students want to eventually travel to another country. Write an algebraic expression that represents the students who never want to travel to another country
Mathematics
1 answer:
Ivenika [448]3 years ago
5 0
40÷30s? I think that is the answer, but I'm not completely sure...
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What is the equation of the polynomial function?
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Answer:

f(x) = (1/2)(x-2)^2(x+1)(x+2)

Step-by-step explanation:

You can determine this by looking at the zeroes of the graph. For any zero that goes through the x-axis, the power of that zero is odd. For any zero that that "bounces" from the x-axis, the power of that zero is even.

Starting from left to right, we can see that the first zero, -2, goes through the x-axis. That means (x+2) is raised to an odd power. The second zero, -1, also goes through, so (x+1) is raised to an odd power. The last zero, 2, bounces off the x-axis, so (x-2) is raised to an even power. The only functions that satisfy this criteria are function 1 and 2.

However, we are not done yet. We need to figure out which multiplier value (1/2, 1/4) is correct. To do this, we plug in 0 for x, since we know that the y-intercept is 4. When we plug in 0, we see that f(0) = 4 for the first function. Therefore, the first function is the answer.

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Help me on this algebraic problem and please show work. (10 points) Thanks! :)
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