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maria [59]
1 year ago
7

Scientists studying dolphin echolocation simulate the projection of a bottlenose dolphin's clicking sounds using computer

Mathematics
1 answer:
lina2011 [118]1 year ago
4 0

Step-by-step explanation:

The equation of a parabola with focus at (h, k) and the directrix y = p is given by the following formula:

(y - k)^2 = 4 * f * (x - h)

In this case, the focus is at the origin (0, 0) and the directrix is the line y = -1.3, so the equation representing the cross section of the reflector is:

y^2 = 4 * f * x

  = 4 * (-1.3) * x

  = -5.2x

The depth of the reflector is the distance from the vertex to the directrix. In this case, the vertex is at the origin, so the depth is simply the distance from the origin to the line y = -1.3. Since the directrix is a horizontal line, this distance is simply the absolute value of the y-coordinate of the line, which is 1.3 inches. Therefore, the depth of the reflector is approximately 1.3 inches.

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7777777777777777777777777777777777777777777777777777777777x1
Vikki [24]

Answer:

7777777777777777777777777777777777777777777777777777777777

Step-by-step explanation:

Any number multiplied by 1 is itself.

6 0
3 years ago
727w8w7eueurururuititoy​
SSSSS [86.1K]

Answer:

ok

Step-by-step explanation:

5 0
3 years ago
Someone please help me quick I've been stuck on this problem for 2 hours and my assignment is due at 10:30pm.
astraxan [27]

Answer:

419.5 ft of BX cable

step-by-step explanation:

12x8.5ft= 102 ft

7x18.5 ft= 129.5ft

24x 1.75ft= 42ft

12x 6.5ft=78 ft

2x 34.25= 68.5ft

Add all the answers and you get 419.5 ft

8 0
3 years ago
I’ll give brainliest!
iren [92.7K]

Answer:

okay ans is A(w)=w2+5w-1/8piw2

6 0
2 years ago
PLEASE HELP!!
aliya0001 [1]

Ik this is late, but people who are looking for the answer can see this.

Answer:

an =1/3*6^n-1

Step-by-step explanation:

You should plug in 2 for n in each equation, which, the correct one should give you 2. Then, to make sure, you plug in 3 in the equations that gave you 2.

Example:

an = 1/3 * 6 ^n-1

Plug in 2.

an = 1/3 * 6 ^2-1

an = 1/3 * 6 ^1

1/3 * 6 = 2

Step 2.

an = 1/3 * 6 ^3-1

an = 1/3 * 6 ^2

1/3 * 36 = 12

Hope this helps.

4 0
3 years ago
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