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exis [7]
3 years ago
15

Pls find m<1 TYSM! **the answer is not 40**

Mathematics
1 answer:
vovangra [49]3 years ago
7 0

Step-by-step explanation:

Does that make sense to u??

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4. The reflecting dish of a parabolic microphone has a cross-section in the shape of a parabola. The microphone itself is placed
elixir [45]
Assume the parabola is placed on a graph where the x-axis is the top of the dish.
The vertex is then at (0,-30)  The x-intercepts or zeros are at (-30,0) and (30,0)

The equation of such parabola would be:
y = a(x+30)(x-30)
Plug in vertex to find value of 'a'
-30 = a(0+30)(0-30) \\  \\ a = \frac{-30}{(-30)(30)} = \frac{1}{30}

Now find the focus given that p = \frac{1}{4a}
p = \frac{1}{4(1/30)} = \frac{30}{4} = 7.5

Answer: the microphone should be placed 7.5 inches from vertex.
8 0
3 years ago
Describe the varying vegetation regions in Canada
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Answer: Canada Vegetation

Forests are primarily mixes of white and black spruce, lodgepole pine, balsam poplar, paper birch and trembling aspen. Common understorey plants include mountain and green alders, highbush cranberry, wild rose, Canadian buffalo berry and reed grass, fireweed, lingonberry, twinflower and feather mosses.

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2 years ago
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Find the length of each arc. Round your answer to the nearest tenth.
Ede4ka [16]

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3 years ago
What is the distance between the two points M(8, -5) and N(-13, 4)?
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The distance formula is sqare root (x-x)^2+(y-y)^2 and then you will plug in 

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4 0
3 years ago
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ROUNDING AND ESTIMATION
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3 years ago
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