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konstantin123 [22]
3 years ago
15

I need help finding surface area

Mathematics
2 answers:
Papessa [141]3 years ago
6 0
Use the formula A= abch 
a= side 
b= side 
c= side 
h= side
Elena-2011 [213]3 years ago
3 0
Thaw answer to this math problem is 184cm3
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Which is higher 214.7 or 214.275
Lostsunrise [7]

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Hannah can paint a room in 20 hours. Destiny can paint the same room in 12 hours. How long does it take for both Hannah and Dest
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Mrs.Barritz is packing food bags for the sick. Because of the special health needs of the people to whom they will be delivered,
Rudiy27

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3 years ago
A satellite dish is shaped like a paraboloid of revolution. The signals that emanate from a satellite strike the surface of the
allochka39001 [22]

Answer:

The receiver must be placed at a distance of 6.125 ft from the center.

Step-by-step explanation:

The dish is of parabola shape with the length of 14 feet and 2 feet deep from the center.

A parabola is a curve which is a set of all points in the plane which are at equal distance away from a given point called focus and given line called directrix.

We have to find out the point at which all the waves comes to one point where the receiver must be placed is the focus of the parabola.

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The extreme two end points becomes, (-7,2) and (7,2)

The general equation for such parabola is:

x² = 4ay

where, a is the distance from the center and the focus.

Since, (7,2) satisfy the equation so,

7² = 4a×2

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Thus,

<u>The receiver must be placed at a distance of 6.125 ft from the center.</u>

5 0
3 years ago
Ples help A square is a rectangle. always sometimes never
MakcuM [25]

By definition, a rectangle is:

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By extension, a square is:

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<h3>So yes, a square is always a rectangle.</h3>
6 0
3 years ago
Read 2 more answers
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