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strojnjashka [21]
3 years ago
6

How many solutions ?

Mathematics
1 answer:
Volgvan3 years ago
5 0

Answer:

no Solutions

Step-by-step explanation:

-2x -2y = 6

10x + 10y = -30

multiply the first equation by 5 and add the tower equations together

-10x - 10y = 30

+ 10x +10y = -30

you get all zeros so it had no solutions

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Find the 6th term of the arithmetic sequence X – 9, -X – 11, -3.3 – 13, ...
MrMuchimi

Answer:

-13x-23

Step-by-step explanation:

Given sequence:  x-9, -x-11, -3x-13

Therefore,

  • a_1=x-9
  • a_2=-x-11
  • a_3=-3x-13

General form of an arithmetic sequence: a_n=a+(n-1)d

(where a is the first term and d is the common difference)

To find the common difference, subtract a term from the next term:

\begin{aligned}d & =a_2-a_1\\ & =(-x-11)-(x-9)\\ & = -x-11-x+9\\ & = -2x-2\end{aligned}

Therefore,

a_n & =(x-9)+(n-1)(-2x-2)

To find the 6th term, input n = 6 into the equation:

\begin{aligned}\implies a_6 & =(x-9)+(6-1)(-2x-2)\\ & = (x-9)+7(-2x-2)\\ & = x-9-14x-14\\ & = -13x-23\end{aligned}

3 0
3 years ago
Please answer this thank you.
Nikitich [7]

11: 4,874 > 4,784 > 4,687

12: 8.09 > 8.057 > 8.023

13: 15.820 > 15.280 > 15.000

14: 43,628 > 40,628 > 34,628

15: 395.050 > 395.009 > 395.005

8 0
3 years ago
Based on the diagram below, BC = 12 and m
Mama L [17]

Answer:


Step-by-step explanation:

tan (40) = x/12

x = 12*tan(40)

6 0
3 years ago
Quintana has 72 stickers she put 9 stickers on each page .then she add 12 more stickers at the end.how many stickers does she ha
Yanka [14]
72 + 12 = 84 stickers
ignore “she put 9 stickers on each page” because the question asked how many stickers she had total not how many on each page
3 0
3 years ago
A ladybug's length is 2cm. Measure it in meters. And Explain your thinking.
trasher [3.6K]

1m = 100cm.  

so since the ladybug is 2cm.  

you divide 2 by 100, which you will get 0.02m (divide by 100 means moving the dot two times to the left. thats why it leaves you 0.02m)


6 0
3 years ago
Read 2 more answers
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