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Alex_Xolod [135]
3 years ago
8

Which properties justify 2x+3x+12=5x+12

Mathematics
1 answer:
Molodets [167]3 years ago
4 0
I think it would be commutative or associative because there is anything to distribute so it is NOT distributive
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There is a pair of parallel sides in the following shape.<br><br> What is the area of the shape?
lesya [120]

Answer:

63

Step-by-step explanation:

3x3=9. Ok? 9x7=63. That is how.             :)

8 0
2 years ago
Simplify 8+7/8x−1−1/2x.
Katena32 [7]

Answer:

7 + 3/8x

Step-by-step explanation:

8+7/8x−1−1/2x.

Combine like terms

8-1  +  7/8x -1/2x

7 + 7/8x -1/2x

Get a common denominator

7 + 7/8x -4/8x

7 + 3/8x

7 0
3 years ago
Chứng minh: x² - 8x + 17 &gt; 0
monitta

Answer: All Real Numbers

x2−8x+17>0  

x2−8x+17=0

For this equation: a=1, b=-8, c=17

1x2+−8x+17=0

x=

−b±√b2−4ac

2a

(Use quadratic formula with a=1, b=-8, c=17)

x=

−(−8)±√(−8)2−4(1)(17)

2(1)

x=

8±√−4

2

All real numbers

8 0
3 years ago
Question 2 on plato geometry 2 70 points
Verizon [17]

Answer:

m∠CFB   m∠CAB   m∠EAD  m ∠CAB + m∠EAD

45°              19.93°               70.07°                     90°

50°              29.91°              70.09°                    100°

60°              49.92°             70.08°                    120°

75°              79.92°             70.08°                    150°

m∠CFB  BF  CF     DF  EF  BF + DF  CF + EF   BF × DF    CF × EF

45°     2.69 2.74    9.09     8.91    11.78    11.65    24.45     24.41

50°      3.7 3.63   8.07     8.23    11.77    11.86    29.86     29.87

60°      5.35 4.72    6.42     7.28    11.77    12.00    34.35     34.36

75°     7.3   5    4.47     6.52    11.77    11.52    32.63     32.6

Step-by-step explanation:

edmentum

7 0
3 years ago
Read 2 more answers
A snail can crawl 2 fiths of a meter in a minute. How many minutes will it take the snail to crawl 6 meters? Enter your answer i
Natasha2012 [34]
15 minutes because if you add 2/5 together 5 times you get 2 and you need 6 so 2+2+2=6 so you add 5+5+5=15 so your answer is 15.
6 0
3 years ago
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