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Gwar [14]
4 years ago
14

A pole that is 3.3 meters tall casts a shadow that is 1.36 meters long. At the same time, a nearby building casts a shadow that

is 47.75 long. How tall is the building?
Mathematics
1 answer:
My name is Ann [436]4 years ago
5 0

Answer:

Height of building is 115.86 m.

Step-by-step explanation:

This is problem of proportion.

a:b = c:d

____________________________________________________________

height of pole = 3.3 m

length of shadow of pole = 1.36 m

ratio

height of pole: length of shadow of pole = 3.3 : 1.36

________________________________________________

let the height of building= x m

length of shadow of building= 47.75 m

ratio

height of building: length of shadow of building= x: 47.75

ratio in both the cases will be same

thus,

x/47.75 = 3.3 / 1.36

=> x = 3.3 / 1.36 * 47.75 = 115.86

Thus, height of building is 115.86 m.

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Explain why the numerical expression 4 less than 20 is written as 20-4 and not 4-20
Phantasy [73]
When converting English phrases into mathematical expressions/equations, we do things from left to right. That is why it's 4 - 20 instead of 20 - 4.

This rule is applied to division as well.
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3 years ago
Select all of the equations that represent linear relationships.
ad-work [718]
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3 years ago
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A point is located in a polar coordinate system by coordinates r = 2.5 m and Θ = 35°.
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x=r\cos \theta\\
y=r\sin \theta\\\\
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7 0
3 years ago
Help please !!! Oh
Tju [1.3M]

It would be

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Find the equation of a circle with a center at (7, 2) and a point on the circle at (-2, -5).
KatRina [158]

Answer:

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Step-by-step explanation:

We need to find the length of the radius

the length of the radius is found by using the distance formula

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