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earnstyle [38]
3 years ago
11

How many diagonals are in a polygon with 14 sides.

Mathematics
1 answer:
Akimi4 [234]3 years ago
5 0
I think it's 77 sides
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Can you help me with 19 20 and 21 please and explain it
ra1l [238]
Its asking how far they traveled in that time, for example, 60 MPH for 3.5 hours is 210 miles.
you would multiply the R by the T to get the D

19. 210 miles

20. 1440 meters

21. 1560 feet

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8 0
3 years ago
What is the measurement of angle A? ​
Morgarella [4.7K]

Answer:

51

Step-by-step explanation:

All triangles =180 degrees

180-78 = 102

Since this triangle is an isosceles triangle, that means that 2 sides are the same length, and that 2 angles are the same.

102/2 (you divide by 2 bc the angles unknown are the same measurement) and that equals 51 degrees

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2 years ago
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ivanzaharov [21]

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Answer B

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Answer:

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Step-by-step explanation:

The slope is the number in front of the x, or how steep the line is on the graph. In this case, it is -2/5.

The y intercept happens when x = 0, so if you make x = 0 in this equation, you find that you are left with y = 5. That gives you the point (0,5) as your y intercept.

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3 years ago
The cost of a one-year subscription to Whale World magazine used to be
vitfil [10]

Answer:

There was a 25 percent increase in the cost of the subscrription.

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