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Scorpion4ik [409]
3 years ago
6

anonymous 2 years ago If you were to solve the following system by substitution, what would be the best variable to solve for an

d from what equation? 2x+6y=9 3x-12y=15 A.y, in the second equation B.x, in the first equation C.y, in the first equation D.x, in the second equation Calculus1
Mathematics
1 answer:
Ainat [17]3 years ago
7 0
I'm sorry that I'm not in calculus, but hopefully I can help.
Personally, I would choose: D.) x; in the second equation ;
because it has easier numbers to figure out, you'll get it eventually...
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Step-by-step explanation:

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2 years ago
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Korvikt [17]

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6 0
3 years ago
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boyakko [2]

Answer:

(x,y) =(-4,-3) --- Vertex

x = -4 --- Axis of symmetry

Step-by-step explanation:

Given

y = -6(x + 4)^2 - 3

Solving (a): The vertex

For an equation written in

y = a(x - h)^2 + k

The vertex is:

(x,y) = (h,k)

By comparison:

y = a(x - h)^2 + k  and y = -6(x + 4)^2 - 3

-h =4       k = -3

h =-4         k = -3  

So, the vertex is:

(x,y) =(-4,-3)

Solving (b): The axis of symmetry

For an equation written in

y = a(x - h)^2 + k

The axis of symmetry is:

x = h

In (a):

h =-4

So:

x = -4

5 0
2 years ago
Cosx=5/17. Solve for x
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3 years ago
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