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3 years ago

13

Triangle ABC can't be mapped into triangle DEF with the reflection across the

1 answer:

omeli [17]3 years ago

7 0

Across the horizon i think... i hope i helped

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What is the axis of symmetry of the function f(x)=−(x+9)(x−21)?

Elena L [17]

Answer:

Therefore the given equation is a parabolic equation with vertex at (6,255) and the axis of symmetry is given by x = 6.

Step-by-step explanation:

i) f(x) = -(x+9)(x-21)

ii) therefore y = f(x) = - $x^{2}$ + 12x + 189 = - ( $x^{2}$ - 12x +36) + 36 + 189

iii) therefore y = f(x) = - $(x-6)^{2}$ + 225

iv) when x = 6 then y = 255

Therefore the given equation is a parabolic equation with vertex at (6,255) and the axis of symmetry is given by x = 6.

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4 years ago

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kaheart [24]

Yes, the answer is A.

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3 years ago

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Answers to question 1, a,b,c,d,e and f

denpristay [2]

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3 years ago

A sample of n = 25 observations from a normal population is drawn. the population mean is 100 and the population (known) standar

Oliga [24]

The answer I think is D.

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3 years ago

A rule for how to find a ratio with a denominator of 1 without using a diagram

kirill115 [55]

If you start with a ratio in the form p/q and want a ratio with a denominator of 1, simply divided p by q.
So suppose you are given the ratio 35/10 (so that p = 35, q = 10).
Then divide 35 by 10 which gives 3.5.
<span>So the units ratio is 3.5:1 or (7/2):1</span>

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3 years ago