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nirvana33 [79]
3 years ago
7

How to solve y=-8x,2x+4y=0

Mathematics
1 answer:
vovikov84 [41]3 years ago
6 0

Answer:

x=0

Step-by-step explanation:

\text{Replace } [-8x] \text{ for } [y]\\\rightarrow [2x+4(-8x)=0]\\\\\text{Solve}\\[2x-32x=0]\\[-30x=0]\\= [0]

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Find the y-intercept of a line parallel to 8x – 2y = 12 and passes through the point (5, 3).
Dmitry_Shevchenko [17]

Answer:

-17

Step-by-step explanation:

8x -2y= 12

<em>Divide</em><em> </em><em>the</em><em> </em><em>whole</em><em> </em><em>equation</em><em> </em><em>by</em><em> </em><em>2</em><em>:</em>

4x -y= 6

<em>Rewrite the equation into the slope-intercept form (y=mx+c, where m is the gradient while c is the y-intercept).</em>

-y= -4x +6

y= 4x -6

Thus, gradient of given line= 4.

Since parallel lines have the same gradient, gradient of line= 4.

y= 4x +c

<em>To find the y-intercept of the lone, substitute a pair of coordinates.</em>

When x=5, y=3,

3= 4(5) +c

3= 20 +c

c= 3 -20

c= -17

Thus, the y-intercept of the line is -17.

7 0
2 years ago
Find the midpoint of diagonal AC of ABCD
Vladimir79 [104]

Answer:

M= (1, 3)

Step-by-step explanation:

we have from the picture:

A = (-3,5)

C = (5, 1)

M = Midpoint

M =((x1+x2)/2), ((y1+y2)/2)

so we have:

x1= -3     y1 = 5

x2= 5     y2= 1

M= ((-3+5)/2) , ((5+1)/2)

M = ((2/2) , (6/2))

M= (1, 3)

5 0
3 years ago
Emily has 300 books. if frank were to double the number of books that he now owns, he would still have fewer than Emily has
Alex_Xolod [135]
This statement is false. 
If he were to double the amount that Emily has to get franks, franks would have more. 
Look :)
Emily's = 300
Frank's = 300 x 2 = 600

now...
Emily's = 300
Frank's = 600

So frank has more! NOT fewer. 

8 0
3 years ago
Read 2 more answers
What is the opposite of the opposite of -2
melisa1 [442]

Answer:

2 is the opposite of-2 and -2 is the opposite of 2

3 0
3 years ago
In a radio station contest, the first prize is $2,000 and the second prize is $500. The probability of winning the first prize i
lana [24]
I think the answer is $14
3 0
3 years ago
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