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dmitriy555 [2]
3 years ago
6

A photocopy of a polygon was reduced to 70% of its original size. Then, the copy was again reduced to 70% of its size.

Mathematics
1 answer:
aniked [119]3 years ago
8 0

Step-by-step explanation:

Step 1 of 4

a) Yes, since the photo copy, is same which is reduced by 80% it remains similar. Because the angles stay the same and the ratios responding sides are proportional.

The following is the figure:



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ycow [4]

Answer:

a)

AB is on the latitude 30°N.

<u>Find AB:</u>

  • AB = 2*3.142*6400*cos 30°*(32+35)/360 = 6482.15 km

BC is along longitude 35°W

<u>Find BC:</u>

  • BC = 2*3.142*6400*(30 + 20)/360 = 5585.77 km

<u>Total distance traveled:</u>

  • 6482.15 + 5585.77 = 12067.92 km

<u>Convert the distance to nautical miles:</u>

12067.92/1.86 = 6488.13 nautical miles

b)

<u>Find the average speed:</u>

  • 6488.13/22 = 294.92 nautical miles / hour

<u>Note</u>. <em>This is unrealistically high speed for a ship, this must be a plane or the time given wrong.</em>

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2 years ago
For f(x) = 3x + 1 and g(x) = x2 – 6, find (f + g)(x)
serg [7]
(f+g)(x)=f(x)+g(x)=3x+1+x²-6=x²+3x-5

answer is D
4 0
3 years ago
Can someone pls pls pls help me Evaluate the expression 6.908 – g for g = 0.173.
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Answer:

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Step-by-step explanation:

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3 years ago
The sum of two consecutive even numbers is 210.
WITCHER [35]

Answer:

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Step-by-step explanation:

Hello!

A consecutive number is a number that comes after the other.

Let the first even integer be x. Since there is an even integer for every two integers, the second number should be x + 2.

<h3>Solve for x</h3>
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The second number is x + 2, so it would be 106.

6 0
2 years ago
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oksano4ka [1.4K]

Answer:

40 miles

Step-by-step explanation:

1 divided by 0.3 x 12=40


8 0
3 years ago
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