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Fofino [41]
2 years ago
13

A construction crew is building a straight ramp the rest on to beams. One beams is 3.5 feet tall and the other is 10.5 feet tall

. The beams are 40 feet apart. What is the slope of the ramp?
Mathematics
1 answer:
Paha777 [63]2 years ago
3 0

Answer:

Step-by-step explanation:

The slope is defined as the rise over the run.  Our rise is the difference between the heights in the beams which is 7 feet (because the shorter beam is 7 feet shorter than the taller beam).  Our run is the distance between the 2 beams which is 40 feet.  Rise over run is also the same thing as the tangent ratio, which is the side opposite over the side adjacent to the angle of inclination.  Therefore,

tan(x) = 7/40 so the slope of the ramp is 7/40

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2 years ago
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The diameter of a iron sphere is 8 cm. It is beaten and drawn into a wire with a diameter of 2 mm. Find the length of the wire.
djyliett [7]

Answer : The length of the wire is, 8533 cm

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As the iron sphere is beaten and drawn into a wire. That means, their volume will be equal.

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The formula will be:

\frac{4}{3}\pi r_1^3=\pi r_2^2h

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r_2 = radius of cylindrical wire = \frac{Diamtere}{2}=\frac{2mm}{2}=1mm=0.1cm

h = height of cylindrical wire or length of wire

Now put all the given values in the above formula, we get:

\frac{4}{3}\pi r_1^3=\pi r_2^2h

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Therefore, the length of the wire is, 8533 cm

6 0
3 years ago
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