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zhenek [66]
3 years ago
11

solve 6/x -4 = 4/x for x and determine if the solution is extraneous or not. x = −8, extraneous x = −8, non-extraneous x = 8, ex

traneous x = 8, non-extraneous
Mathematics
1 answer:
disa [49]3 years ago
5 0
\frac{6}{x-4} = \frac{4}{x}  \\ 6x=4(x-4)=4x-16 \\ 2x=-16 \\ x=-8
To check: 6/(-8-4) = 4/-8
6/-12 = 4/-8
1/-2 = 1/-2
Therefore, <span>x = −8, non-extraneous</span>
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In 3-4 sentences, describe how you would find a line parallel to the line 2x + 5y = 15 that goes through the point (-10, 1). Be
larisa86 [58]

the parallel line is 2x+5y+15=0.

Step-by-step explanation:

ok I hope it will work

soo,

Solution

given,

given parallel line 2x+5y=15

which goes through the point (-10,1)

now,

let 2x+5y=15 be equation no.1

then the line which is parallel to the equation 1st

2 x+5y+k = 0 let it be equation no.2

now the equation no.2 passes through the point (-10,1)

or, 2x+5y+k =0

or, 2*-10+5*1+k= 0

or, -20+5+k= 0

or, -15+k= 0

or, k= 15

putting the value of k in equation no.2 we get,

or, 2x+5y+k=0

or, 2x+5y+15=0

which is a required line.

6 0
1 year ago
The terminal point of Dis ( 1/2,3/2). What is cos 0?
nydimaria [60]

Answer:

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Step-by-step explanation:

The <u><em>cosine</em></u> is the <em>"x" coordinate</em> of the terminal point on the unit circle.

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5 0
3 years ago
What is the simplified expression for the expression below? -1/5(5x+20)-1/4(4x-28)
e-lub [12.9K]

You need to distribute the numerical factors for each term in the parenthesis:

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This equals

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djyliett [7]

9(3.2)+4-3(7+3.2)=2.2

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3 years ago
Which statement best explains the value of 18 − (−5)?
just olya [345]
<span>The additive inverse of −5 is +5, so 18 − (−5) = 23. </span>
8 0
3 years ago
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