Regina owns a drum that has a diameter of 14 inches and a height of 5.5 inches, as shown below. She wants to design a new drum b
y dilating the dimensions of the original drum by a scale factor of 1.4. 14 in. 5.5 in. What will be the diameter, d, and the height, h, of the new drum? F. d 19.6 in. and h 7.7 in. G. d 15.4 in. and h 6.9 in. H. d 12.5 in. and h 4 in. J. d 22.5 in. and h 14 in.
1 answer:
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The correct answer is
In fact, this is a trinomial of the form
, whose solutions are given by
Using this formula for the trinomial of the problem, we find:
<span>we see that this trinomial has two coincident solutions (x=3 with multiplicity 2). This means that it can be rewritten as a perfect square, in the following form:
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In fact, this is a trinomial of the form
Using this formula for the trinomial of the problem, we find:
<span>we see that this trinomial has two coincident solutions (x=3 with multiplicity 2). This means that it can be rewritten as a perfect square, in the following form:
</span>
</span>