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Lana71 [14]
2 years ago
12

X + y - z = - 2, 2x - y + z = 8, - x + 2y + 2z = 10

Mathematics
1 answer:
Maurinko [17]2 years ago
3 0

Answer:

a

Step-by-step explanation:

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Using elimination (add or sub) find the solution to the following system of equations 5x+ 3y=9 2x -3y=5
Levart [38]
5x+3y=9
2x-3y=5

5x+2x=9+5
7x=14
14/7x= 2
x=2

sub it in so you get y

5(2)+3y=9
10+3y=9 (-10 to get rid of it)
3y=-1
3y/-1= - 1/3

x= 2 y= - 1/3
8 0
3 years ago
Please help me anyone
Vera_Pavlovna [14]

Answer:

25

Step-by-step explanation:

2x=x+25

2x-x=25

x=25

5 0
3 years ago
Q3) f(x) 2x^2 - 5x, g(x) = 3x^3 find g(4x)
mrs_skeptik [129]

Answer:

g(4x) = 192x^3

Step-by-step explanation:

For this problem, f(x) is irrelevant since we are simply are dealing with g(x).  We will simply replace the value of x in g(x) with 4x.  So let's do that.

g(x) = 3x^3

g(4x) = 3(4x)^3

g(4x) = 3(4^3)(x^3)

g(4x) = 3(64)(x^3)

g(4x) = 192x^3

Hence, g(4x) is 192x^3.

Cheers.

4 0
3 years ago
2) Write the first five terms of the arithmetic sequence, if:<br> a3=8<br> a11=32
padilas [110]

Answer:

a

Step-by-step explanation:

the five terms for arithmetic is that

5 0
3 years ago
Please help with this
Dvinal [7]

Answer:

the 3rd one

Step-by-step explanation:

4 0
3 years ago
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