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svet-max [94.6K]
3 years ago
7

Explain why three-dimensional figure with a curved surface is not a polyhedron

Mathematics
2 answers:
harina [27]3 years ago
7 0
Because it doesn't have straight lines if curved it would not be called a polygon
Georgia [21]3 years ago
3 0
Because a polyhedron must have all flat surfaces.

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Solve. Write answer in simplest form.<br> 7 - 2/5 =
Arlecino [84]

Answer:

6 3/5

Step-by-step explanation:

7 - 2/5 = 6 3/5

Sorry I can’t really explain this. It just comes into my head

3 0
2 years ago
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Can you help me simplify this expression 16d + 20c + 5d -7 - 8c - 7d + 3?
dimulka [17.4K]

Answer:

12c + 14d - 4

Step-by-step explanation:

16d + 20c + 5d -7 - 8c - 7d + 3

Simplify the expression

__________________________

To solve, we need to first take in mind the fact that there are different like terms within this expression. Like terms are numbers or values that end in different symbols, such as variables or exponents. Since we are filled with variables such as c and d. We can do as followed :

Combine the "d" like terms :

16d + 5d - 7d

21d - 7d

14d

Combine the "c" like terms :

20c - 8c

12c

Combine the constants :

-7 + 3

-4

Now add all of the values together to get the final expression.

12c + 14d - 4

6 0
3 years ago
Read 2 more answers
What is the slope of a line that is perpendicular to the line represented by the equation of y=-2/5x+4/5
baherus [9]

Answer:

B = 5/2

Step-by-step explanation:

A perpendicular line has the negative recripical (cant spell lol), but you basically flip the slope and change the sign.

-2/5 = 5/2  

:)

7 0
3 years ago
Which algebraic expression is equivalent to the expression below? 9(3x - 6) + 11x A. 16x + 54 B. 38x - 6 C. 16x - 54 D. 38x - 54
lesya [120]

Answer:

D. 38x−54

Step-by-step explanation:

8 0
3 years ago
A pair of dice is rolled. What is the probability that the sum is 9 or that the first number is a 2?
Ivan

Answer:

9/2 or 6/2

Step-by-step explanation:

The sum of nine should be amended by adding 6 + 2 +1 = 9

so when adding these numbers you will get the sum of 9

5 0
2 years ago
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