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vampirchik [111]
2 years ago
5

Identify the terms and like terms in the question 3n+7-n-3

Mathematics
2 answers:
inessss [21]2 years ago
8 0

Answer:=2n+2

Step-by-step explanation:

3n+7-n-3=2n+2

Temka [501]2 years ago
4 0

Answer:

like terms: (3n,-n),(7,-3)

Step-by-step explanation:

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If y varies directly with x, and y is 12 when x is 8, find y when x is 9.​
jasenka [17]

Answer:

26

Step-by-step explanation:

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5 0
2 years ago
Which coefficient matrix represents a system of linear equations that has a unique solution ?
finlep [7]

Answer:

Option C

Step-by-step explanation:

We are given a coefficient matrix along and not the solution matrix

Since solution matrix is not given we cannot check for infinity solutions.

But we can check whether coefficient matrix is 0 or not

If coefficient matrix is zero, the system is inconsistent and hence no solution.

Option A)

|A|=\left[\begin{array}{ccc}4&2&6\\2&1&3\\-2&3&-4\end{array}\right] =0

since II row is a multiple of I row

Hence no solution or infinite

OPtion B

|B|=\left[\begin{array}{ccc}2&0&-2\\-7&1&5\\4&-2&0\end{array}\right] \\=2(10)-2(10)=0

Hence no solution or infinite

Option C

\left[\begin{array}{ccc}6&0&-2\\-2&0&6\\1&-2&0\end{array}\right] \\=2(36-2)=68

Hence there will be a unique solution

Option D

\left[\begin{array}{ccc}5&10&5\\4&1&4\\-1&-2&-1\end{array}\right] \\=2(10)-2(10)=0=0

(since I row is -5 times III row)

Hence there will be no or infinite solution

Option C is the correct answer



4 0
3 years ago
Read 2 more answers
There are 30 students in a class and 18 of them own at least one pet.
katrin2010 [14]

Answer:

18/30=3/5

Step-by-step explanation:

8 0
2 years ago
NEED HELP please!! 30 points!!!
nikitadnepr [17]

Answer: What are you asking ?

Step-by-step explanation:

8 0
3 years ago
Give the answer to the question below.
alexira [117]

Answer:

1/4 assuming x is not 0

Step-by-step explanation:

x^0 is 1 and 1/4 * 1 = 1/4

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3 years ago
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