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Tems11 [23]
3 years ago
10

A parabolic microphone used on the sidelines of a professional football game uses a reflective dish 24 inches wide and 6 inches

deep. How far from the bottom of the disk should the microphone be placed?
a.) 6 in
b.) 5.8 in
c.) 5.2 in
d.) 4 in
Mathematics
1 answer:
Strike441 [17]3 years ago
5 0
The answer is a.
When you are solving problems like this you would use the equation y^2=4ax. The x and Y would be the coordinates. Based on the equation you have given the coordinates would be (6,12) and (6,-12), (24 is split up evenly between the y-axis).  
Then we go on to solve the equation by plugging in the numbers 12^2=4a(6)
144=24a
144/24=24a/24
6=a
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Please help me now plz <br> I will mark you brainliest
EastWind [94]

Answer:

  1229 km

Step-by-step explanation:

The missing angle is ...

  180° -60° -75° = 45°

Knowing that, the Law of Sines can be used to find the side opposite the 75° angle.

  ?/sin(75°) = 900 km/sin(45°)

  ? = (900 km)sin(75°)/sin(45°) ≈ 1229.423 km

The UFO is about 1229 km from KA-12.

5 0
4 years ago
Choose the BEST estimate!
Novay_Z [31]

Answer:

About 300 dollars

Step-by-step explanation:

THe best estimate for week one is 300, because 96 rounds to 100, and 100 * 3 equals 300.

The best estimate for week 2 is 600, because 204 rounds to 200, and 200 * 3 equals 600.

600 - 300 = 300, therefore the difference is about 300 dollars.

Hope this helps!

4 0
3 years ago
Is the equation y = 5x2 linear or not
Effectus [21]

Answer:

yes

Step-by-step explanation:

pretty sure it would be ones u solve the rest.

4 0
3 years ago
Consider the formula P = \dfrac{ H\cdot d}{m}P=
Lilit [14]

Answer:

The productivity is measured in cubic meters per kilogram.

Step-by-step explanation:

For the formula for the productivity P of the camel

P = \dfrac{ H\cdot d}{m}

where  H is the area of the hump and is measured in square meters, d is the distance the camel can travel (measure in meters), and m is the mass of the camel (measured in kilograms kg ).

Then, the productivity of the camel is measure in

P=\dfrac{meters^2\:*meters}{kilograms}

P=\dfrac{m^3}{kg}

cubic meters per kilogram.

7 0
3 years ago
Read 2 more answers
SMART PPL HELP LOL PLEASE
olga2289 [7]
1. YES: plug in 5
2.NO
8 0
3 years ago
Read 2 more answers
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