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Archy [21]
2 years ago
13

The cross section of a parabolic sound reflector at the Olympics has a diameter of 20 inches and is 25 inches deep. Write an equ

ation that represents the cross section of the reflector with its vertex at ( ) 0, 0 and its focus to the left of the vertex.
Mathematics
1 answer:
Arturiano [62]2 years ago
7 0

Answer: 69

Step-by-step explanation: Sorry I do not know the answer because I am not smart.  I just need the points so I can answer more questions.  Have a great day though and I wish you luck with your question:)

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Plz help me ASAP! Answer the question in the picture below. Explain all of your steps.
ruslelena [56]

Answer:

175 hope this helps


Step-by-step explanation:

Add 72 and 113

then subtract that from 360


8 0
3 years ago
Which term of the AP. 8 , -4 , -16 , -28 ,......... is -880 ?​
denis-greek [22]

Answer:

75th term

Step-by-step explanation:

hope it is well understood

6 0
3 years ago
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Solution q-2r=4<br> q+r=37
GenaCL600 [577]
Q-2r=4, therefore: q=4+2r.

Plug the value of q into q+r=37, so you get:

4+2r+r=37

3r=37-4=33

3r=33

Therefore: r=11.

q-2r=4, but r=11, so:

q-2(11)=4

q-22=4

Therefore q=26.

Check if the answer is correct using second equation:

q=4+2r=4+2(11)=4+22=26.

So: q=26 and r=11.


4 0
3 years ago
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Almost done please someone!!!!!!!!!!!!!!!!!!!!!!!
Levart [38]

Answer:

yea sooo sorry

Step-by-step explanation:

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3 0
2 years ago
Solve for y when x =0 <br> -9x-2y=-20
madam [21]

10

substitute 0 for x in the equation.

-9(0) - 2y= -20

0 - 2y = -20

-2y= -20 (divide by -2)

y = 10

5 0
3 years ago
Read 2 more answers
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