Answer:
its c brodie
Step-by-step explanation:
it is
Answer:
Step-by-step explanation:
We don't need choices to find out the correct answer. Solve this problem by completing the square. Begin by setting the quadratic equal to 0 and moving over the constant, like this:
and factor out the -1 in front of the x-squared, since the leading coefficient HAS to be a 1:
Now take half the linear term, square it, and add it to both sides. Our linear term is -2. Half of -2 is -1, and squaring that gives us 1. So we add a 1 into both sides. But that -1 out front there on the left is a multiplier, so what we actually added in was -1(1) which is -1:
On the left side we have a perfect square binomial, which is why we do this, and on the right side we have -2:
and we can move that constant back over and set the quadratic back equal to y:
which gives us a max height of 2.
(If this was modeling parabolic motion, we would know that the time it takes to get to that max height is 1 second. The vertex of this parabola is (1, 2))
Answer:
21
Step-by-step explanation:
To find the area of a cylinder you mutliply radius by height.
r*h = 162
If we know the height is 7.7, substitute it for <em>h.</em>
r*7.7 = 162.
Or:
162 / 7.7
Which gives you 21.03, or 21.
The bottle is a cylinder, height <em>h</em> radius <em>r=h/4.</em>
![h = \sqrt[3]{ \dfrac{16V}{\pi} }](https://tex.z-dn.net/?f=h%20%3D%20%5Csqrt%5B3%5D%7B%20%5Cdfrac%7B16V%7D%7B%5Cpi%7D%20%7D)
Answer: second choice, cube root
You do whatever you need to do to one side of the equation in order to have
only ' y ' left on that side, AND every time you do something to that side of
the equation, do exactly the same thing to the other side.
Here are three examples, out of the 9 answers you want handed to you:
<em>#16:</em> <u>3x + 5y = 7</u>
Subtract 3x from each side: 5y = -3x + 7
Divide each side by 5 : <em>y = -3/5 x + 7/5</em>
======================================
<em>#17: </em> <u>13 = 12x - 2y</u>
Add 2y to each side: 2y + 13 = 12x
Subtract 13 from each side: 2y = 12x - 13
Divide each side by 2 : <em> y = 6x - 13/2</em>
======================================
<em>#22:</em> <u>1/4 y + 3 = -5x</u>
Subtract 3 from each side: 1/4 y = -5x + 3
Multiply each side by 4 : <em>y = -20x + 12</em>
