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marin [14]
2 years ago
14

8x-2y^2=12 solve for y

Mathematics
2 answers:
Neko [114]2 years ago
6 0
I hope it can help you

Komok [63]2 years ago
6 0

8x - 2y² = 12

- 2y² = -8x + 12 <em>subtracted 8x from both sides</em>

y² = 4x - 6 <em>divided both sides by -2</em>

|y| = \sqrt{4x - 6} <em>took square root of both sides</em>

y = +/- \sqrt{4x - 6} <em>eliminated the absolute value</em>

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The sum of three numbers is 104. The first number is 6 less than the second. The third number is 3 times the second. What are th
lara [203]
We can write this in math as x+y+z=104, x=y-6, and z=3y

Because we already know what x and z are in terms of y, we can substitute our values for x and z into the first equation. This now looks like (y-6) + y + (3y) = 104. Now we can simplify our equation to find our value for y.

y-6 + y + 3y = 104 simplifies to 5y - 6 = 104, then 5y=110, and finally y=22.

Now that we know our value for y we can find our values for x and z by substituting our value for y into the other two equations.

The second equation x = y-6 can be simplified as x = 22 - 6 and further simplified as x = 16.

The third equation z = 3y can be written as z = 3(22) or z = 66.

Our three numbers are 16, 22, and 66. Hope this helps you!
8 0
2 years ago
What is the equation of the line that is perpendicular to y=2x+4 and passes through the points (4 6)
Anuta_ua [19.1K]

Answer:

y=-0.5x+8

Step-by-step explanation:

Opposite reciprocal of 2: -0.5

6=-0.5*4+b

6=-2+b

b=8

6 0
3 years ago
Math 8 Review:Question 9
forsale [732]

Answer:

$5 per hour

Step-by-step explanation:

Just divide the amount that he earns by the price.

25/5=5

50/10=5

Brett is making $5 an hour.

5 0
3 years ago
Which is the best simplification of (24 x 32) / (2 x 3)?
9966 [12]
(24*32)/(2*3)
(768)/(6)
=128
I hope this helped you!!
8 0
3 years ago
Q # 8 please helme to resolve
kondor19780726 [428]

Sequence 1,5,9,13,...

A(0) = 1 +4x0=1

A(1) =1 + 4x1 = 5

A(2) = 1+ 4x2= 9

A(3) = 1 +4x3=13

A(n)= 1+4n   A(n-1) = 1+4(n-1) =1+4n-4= - 3+4n

A(n) - A(n-1) = (1+4n) - (-3=4n) = 4

A(n) = A(n-1) +4; 29 is the answer

4 0
2 years ago
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