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aleksandr82 [10.1K]
3 years ago
12

Given that 1 inch=2.54cm how many centimeters are there in 4 feet

Mathematics
2 answers:
telo118 [61]3 years ago
4 0

Answer: The answer is 121.92

Step-by-step explanation:

Ivanshal [37]3 years ago
3 0

Answer:

121.92 cm

Step-by-step explanation:

12 inches = 1 foot

(2.54)(12) = 30.48 cm

(30.38)(4) = 121.92 cm

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A man is standing at a radar base and observes an unidentified plane at an altitude 6000m flying towards the radar base at an an
liubo4ka [24]

Answer:

The speed in of the plane is 115.47 m/sec

Step-by-step explanation:

Given:

Height at which the plane is flying = 6000 m

Angle of elevation at the radar base = 30 Degrees

Angle of elevation at the radar base after one minute  = 60 Degrees

To Find:

The Speed of the plane in meter per second = ?

Solution:

Let us use the tangent of the angle to find the distance (d) to a point directly below plane:

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tan(30) = \frac{6000}{d1}

d1   = \frac{6000}{tan(30)}

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d1 = 10392.3 meters

<u>when the angle is 60 degrees</u>

tan(60) = \frac{6000}{d2}

d2  = \frac{6000}{tan(60)}

d2  = \frac{6000}{1.732}\\

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<u>distance travelled by aircraft in 1 min is  </u>

=>d1 - d2

=>0392.3 - 3464.1

= 6928.2 m/min

<u>Now converting to m/sec</u>

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4 0
3 years ago
Please solve and show work
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2 years ago
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