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Mashutka [201]
3 years ago
6

If you were to solve the following system by substitution, what would be the best variable to solve for and from what equation?

3x+6y=9 2x-10y=13 a)x in first equation b)x in second equation c)y in first equation d)y in second equation
Mathematics
1 answer:
fgiga [73]3 years ago
7 0
X in the first equation

because 3x + 6y = 9 can be reduced by dividing by 3, thus, giving u 
x + 2y = 3.....x = -2y + 3...which u would sub in for x in the other equation
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Can help me understand this?
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Answer:

Its easy just fill in the blacks

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3 years ago
Evaluate the expression
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\frac{16^{6/4}}{16^{2/2} }

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7 0
2 years ago
If f left parenthesis x right parenthesis equals x squared minus 3 x plus 5 , then f left parenthesis 4 right parenthesis equals
lord [1]

Answer:

f(4) = 9

Step-by-step explanation:

f left parenthesis x right parenthesis equals x squared minus 3 x plus 5

f(x) = x² - 3x + 5

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f(4) =

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When x = 4

f(4) = 4² - 3(4) + 5

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6 0
2 years ago
Learning goal: to understand the rules for computing dot products. let vectors a=(2,1,−4), b=(−3,0,1), and c=(−1,−1,2). part a -
miv72 [106K]
For this case we have the following vectors:
 a = (2,1, -4)

b = (- 3,0,1)

c = (- 1, -1,2)
 The dot product of two vectors is a scalar.
 The point product consists of multiplying component by component and then adding the result of the multiplication of each component.
 For the product point of the vectors a and b we have:
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a.b = (2) (- 3) + (1) (0) + (-4) (1)

a.b = - 6 + 0 - 4

a.b = - 10
 Answer:
 
The product point of the vectors a and b is: 
 
a.b = - 10
3 0
3 years ago
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