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hammer [34]
3 years ago
14

Solve:4x+3y=20;4x+2y=10 by matrix method​

Mathematics
1 answer:
laila [671]3 years ago
8 0

Answer:

i don't know sorry . and study well to make your future good

You might be interested in
Is x = -7, the solution to -11 + 2x = -26? Justify your answer in complete sentences.
Natali5045456 [20]
First of all, you can move the +2x to the other side:
-11 = -26 - 2x

Then you can move the -26 to the other side and then simplify:
-11+26 = -2x
 15 = -2x

Then you can divide both sides by 2:
7.5 = -x

Then you can flip the sides and the signs around:
x = -7.5

No, The answer is not -7, it is -7.5
Hope this helps! :)
4 0
3 years ago
If you rotate a triangle 180 degrees with points of (1,2), (3,3), (1,4) what would the new points be?
alexgriva [62]

Answer: when you rotate the triangle 180 degrees the new points would be (-1,-2), (-1,-4), and (-3,-3).

Step-by-step explanation:

You simply flip the graph 180 degrees. Not that hard.

8 0
3 years ago
Rosemary had $25 to spend on school supplies she buys four packages of mechanical pencils. After her trip to the store, she only
Alinara [238K]

Answer: Each pack of pencils cost $6.

Step-by-step explanation: Rosemary had $25 and was left with $1, so she spent $24 in total for four packages, therefore, you can divide $24 into 4 to find out the individual cost, which is $6.

6 0
3 years ago
Read 2 more answers
Can someone help me please, its geometry
ahrayia [7]

Answer:

2n

Step-by-step explanation:

Pythagoras a^{2} + b^{2} = c^{2}

2 squared plus 2 squared = 8 but you need to find out the root of 8,

square root of 8 is a surd, so answer in that

5 0
3 years ago
Read 2 more answers
15) g(n) = 2n + 5 f(n) = -4n-1 Find g(f(n))​
Lisa [10]

Answer:

g[f(n)] = -8n+3

Step-by-step explanation:

Given,

g(n) = 2n + 5 , f(n) = -4n-1

Find g(f(n)),

Solutions,

g[f(n)] = g[-4n-1]

= 2(-4n-1) + 5

= -8n–2+5

g[f(n)] = -8n+3

Final Answer = g[f(n)] = -8n+3.

6 0
3 years ago
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