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nignag [31]
3 years ago
13

21. Combine the complex numbers (9+81)-(2+81)+(9 +21)

Mathematics
1 answer:
zhuklara [117]3 years ago
6 0

Answer:

37

Step-by-step explanation:

90-83+30=37

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lori has run 2.62 miles

Step-by-step explanation:

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At the first meeting of the Tennis Club, the 7 members decided to have a tournament in which every player will play a match agai
mariarad [96]

Answer:

21 matches

Step-by-step explanation:

This is a combination problem where we have to select two member out of 7 members

 

So we want calculation of  7C2

 

   7C2 = 7!/[(2!)(7-2)!]

   (7*6*5*4*3*2*1)/[(2*1) *(5*4*3*2*1]

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3 years ago
of the 50 students particapating in after school sports ,30% of them turned them in .How many students turned in their physical
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Answer:

15

Step-by-step explanation:

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7 0
3 years ago
What is the answer of this questoin 2c-3b+6+7b-2b+11?​
Katena32 [7]

Answer:

2c+2b+17

Step-by-step explanation:

-----------------------

Given:

2c-3b+6+7b-2b+11

---------->>>>

Collect like terms.

2c+(-3b+7b-2b)+(6+11)

---------->>>>

Simplify

2c+2b+17

------------------------

Hope this is helpful.

7 0
3 years ago
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Which triangle results from a reflection across the line x = 1?
taurus [48]

Answer:

d

Step-by-step explanation:

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