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MAXImum [283]
3 years ago
12

Which pair of numbers completes the table intop?

Mathematics
2 answers:
Lostsunrise [7]3 years ago
6 0
The answer is 300 inches and 25 feet!!
Annette [7]3 years ago
4 0
The answer is 300 inches and 25 feet
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How many triangles and quadrilaterals altogether can be formed using the vertices of a 7-sided regular polygon?
MAVERICK [17]

Answer:  The correct option is

(E) 70.

Step-by-step explanation:  We are given to find the number of  triangles and quadrilaterals altogether that can be formed using the vertices of a 7-sided regular polygon.

To form a triangle, we need any 3 vertices of the 7-sided regular polygon. So, the number of triangles that can be formed is

n_t=^7C_3=\dfrac{7!}{3!(7-3)!}=\dfrac{7\times6\times5\times4!}{3\times2\times1\times4!}=35.

Also, to form a quadrilateral, we need any 4 vertices of the 7-sided regular polygon. So, the number of quadrilateral that can be formed is

n_q=^7C_4=\dfrac{7!}{4!(7-4)!}=\dfrac{7\times6\times5\times4!}{4!\times3\times2\times1}=35.

Therefore, the total number of triangles and quadrilaterals is

n=n_t+n_q=35+35=70.

Thus, option (E) is CORRECT.

8 0
3 years ago
Math - Use unit conversion factor to convert the units.
nlexa [21]

Answer: 240 minutes, 20 cups, 4000 pounds

<u>Step-by-step explanation:</u>

Use the following conversions:

1 hour = 60 minutes

2 cups = 1 pint

2 pints = 1 quart

1 ton = 2000 pounds

4\ hours\times \dfrac{60\ minutes}{1\ hour}=\large\boxed{240\ minutes}\\\\\\\\5\ quarts \times \dfrac{2\ pints}{1\ quart}\times \dfrac{2\ cups}{1\ pint}=\large\boxed{20\ cups}\\\\\\\\2\ tons\times \dfrac{2000\ pounds}{1\ ton}=\large\boxed{4000\ pounds}

8 0
3 years ago
I really need help fast
xenn [34]

Answer:

Tom jogged farther.

Step-by-step explanation:

2 1/2 + 3 1/8 = 5 5/8   5 6/8 would be equalt to 5 3/4 but since it isn't 5 3/4 is farther.    

Tom jogged 1/8 farther.

6 0
3 years ago
Two thirds as a decimal
larisa [96]
2/3
=0.6666666... is your final answer. Hope it help!
4 0
3 years ago
Read 2 more answers
9 - 12n 2 + 4n 3 - 7n
Naddika [18.5K]
1) is the correct answer because you just have to arrange them by degree
3 0
3 years ago
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