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romanna [79]
2 years ago
13

Please help me the person with the correct answer gets brain liest

Mathematics
2 answers:
Vadim26 [7]2 years ago
4 0

Answer:

10 = 6

11) = 11

Step-by-step explanation:

1)

(a-5)- (2b-9) +c = \\ (6 - 5) - (2(3) - 9) + 2 \\ (1) - (6 - 9) + 2 \\ (1) - ( - 3) + 2 \\ 1--3+2 \\ 1+3+2 \\ 4+2 \\  = 6

2)

( {b}^{2}  -  2b + 6) + 3b - 7 \\ ( {3}^{2}  - 2(3) + 6) + 3(3) - 7 \\ (9 -6  +  6) + 9 - 7 \\ (9) + 2 \\  = 11

Scilla [17]2 years ago
3 0

Answer:

3a - 14 + c

5b -1

This should be right. I had a A in this chapter.

Step-by-step ex

check out my yt

CL asapfn

sub

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Which of these shows 9z + 5 rewritten using the commutative property of addition? (90 points)
Lera25 [3.4K]

Commutative property Of addition means you can change the order of the terms being added and it won’t affect the final answer.

9z + 5 can be rearranged to 5 + 9z and the answer would be the same.

The answer is 3) 5 + 9z

3 0
3 years ago
Read 2 more answers
What is the MEAN of the following data set?<br><br> 31, 27, 19, 18, 22, 21, 25, 29, 34, 30
azamat

Step-by-step explanation:

31+27+19+18+22+21+25+29+34+30 divided by 10

3 0
2 years ago
What is the mode of this data?<br> 1.7 8.9 3 5.9 3.2 4.1 6.6 0.7
ExtremeBDS [4]

Answer:

The value of Mode is 2.43

Step-by-step explanation:

  • To find the mode of the given data first we have to arrange it in a increasing order then find out mean and median of the given data
  • 0.7,1.7,3,3.2,4.1,5.9,6.6,8.9 is in increasing order
  • For finding the median we need to take the average of 4th and 5th terms because we have the no of terms in the sequence is even not odd so we need to take the average the 4th term=3.2 and the 5th term =4.1
  • so average =(3.2+4.1)/2=3.65
  • so the median is equal to 3.65
  • For mean we have to take the average of the data
  • so mean= sum of all data /no of data
  • mean =(0.7+1.7+3+3.2+4.1+5.9+6.6+8.9)/8=4.26
  • so by using the formula we can get mode
  • <em>Mode=3×Median-2×Mean</em>
  • Mode=3×3.65-2×4.26=2.43
  • ∴The value of Mode is given as 2.43
5 0
4 years ago
Someone Plz Helpppp!!!and also plz let me know if the three that I have filled in are correct...
Elenna [48]
3 is b also. unless you arent allowed to use the same one twice
8 0
3 years ago
How do you do this prolem the correct way and how do you do the floors
creativ13 [48]
There is nothing there to work with
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3 years ago
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