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larisa [96]
3 years ago
13

150 miles in 3 hours

Mathematics
2 answers:
uysha [10]3 years ago
6 0
150 miles= in 3 hours
150 miles/3 hours 
= 50mph
Ksivusya [100]3 years ago
4 0
50mph is the answer
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Comparing with the vertex form of the parabola: y=a(x-h)^2+k

a=\frac{1}{10},h=1,k=-2

Hence, the vertex of the parabola is given by (h,k) = (1, -2)

Now, vertex is the midpoint of the focus and the point on the directrix.

Distance, between vertex and focus is p and that of point on the directrix is p.

Now, let us find p

p=\frac{1}{4a}\\\\p=\frac{1}{4\cdot1/10}\\\\p=\frac{5}{2}

Thus, the focus is given by

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And the directrix is given by

y=k-p\\\\y=-2-5/2\\\\y=-\frac{9}{2}

Since, a >0 hence, it is an upward parabola.

The graph is shown in the attached file.

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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