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saw5 [17]
4 years ago
9

Which is a better buy; 5 pencils for $0.75 or 8 pencils for $1.00?

Mathematics
1 answer:
Katen [24]4 years ago
7 0
I think the 8 pencils is a better buy because it is only 2 more cents than the other one and 3 extra pencils.  8 cents per pencil
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How many hours are in 170 minutes
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Answer:

There are a total of 2 hours and 50 min.

Step-by-step explanation:

1 hour = 60 min

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60 x 3 = 180 min - too much

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Answer:

D

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The equation of a parabola in vertex form is

y = a(x - h)² + k

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Given

f(x) = - 0.6x² + 4.2x + 240 ← factor out - 0.6 from the first 2 terms

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f(x) = - 0.6(x² + 2(- 3.5)x + 12.25 - 12.25 ) + 240

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f(x) = - 0.6(x - 3.5)² + 247.35 has a maximum value of 247.35

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4\sqrt{2}

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