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Anna [14]
4 years ago
8

What is 3 1/4 - 4 1/2????

Mathematics
2 answers:
nlexa [21]4 years ago
7 0

you have to make sure that they have the same denominator so

31/4 -4 2/4

= - 1 1/4

hope this helped you hon


andre [41]4 years ago
4 0

3 1/4 - 4 1/2

Make sure they share a same denominator:

3 1/4- 4 2/4

13/4-18/4

=-5/4

= -1 1/4

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A polynomial of degree 2 represents a parabola. Since the leading coefficients, i.e. the coefficient of the term with highest degree, is positive (in this case, it's 3), the parabola is concave up. It means that it has a minimum, and it's unbounded from above. So, the range is something like [a,\infty). To find the minimum, let's start with the "standard" parabola y=x^2, and transform it to the one of this exercise. y=x^2 has minimum 0, and thus its range is [0,\infty). When you multiply it times three, its shape narrows, but the range wont change: [0,\infty) \to [3\cdot 0,3\cdot \infty) = [0,\infty). Finally, when you subtract 5, you shift everythin down 5 units. This transformation affects the range, since you have [0,\infty) \to [0-5,\infty-5) = [-5,\infty)


Image of -3:


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