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tia_tia [17]
3 years ago
15

Triangle DEF is reflected over the y-axis, and then translated

Mathematics
1 answer:
nika2105 [10]3 years ago
5 0

Answer:c

Step-by-step explanation:

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Which of the following is an EQUATION?
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Answer:

C

Step-by-step explanation:

An equation is where you already have the answer but you have to find out what the variable is to prove that the equation is true.

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A right triangle has a perimeter of 24 cm and a hypotenuse of 10 cm. Find the length of the other two sides.
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Answer:

One of the sides is 6 cm and the other is 8 cm

Step-by-step explanation:

Let's call the unknown sides a and b. From the perimeter information (24 cm) we have:

a + b + hypotenuse = 24

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a + b = 14

b = 14 - a

So now we can right the Pythagorean theorem as follows:

a^2 + b^2 = hypotenuse^2\\a^2 + (14-a)^2=10^2\\a^2+ 14^2-28\,a+a^2=100\\2\,a^2-28\,a +96=0\\2\,(a^2-14\,a+48)=0\\2\,(a^2-6\,a-8\,a+48)=0\\2(a\,(a-6)-8\,(a-6))=0\\2\,(a-6)\,(a-8)=0

and from this expression in factor form to be zero a must be 6 or a must be 8.

Therefore the solutions are a = 6 (and therefore b = 14 - 6 = 8)

or a = 8 (and therefore b = 14 - 8 = 6)

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3 years ago
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Answer:

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Step-by-step explanation:

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