2 feet is the minimum height it can be
Hi there!
v = ±![\sqrt{\frac{2K}{m} }](https://tex.z-dn.net/?f=%5Csqrt%7B%5Cfrac%7B2K%7D%7Bm%7D%20%7D)
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K = 1/2mv²
Isolate for the variable "v". We can begin by dividing both sides by 1/2. (Multiply by the reciprocal, or 2):
2 · K = 2 · (1/2mv²)
2K = mv²
Continue isolating by dividing both sides by "m":
2K / m = v²
Take the square root of both sides. Remember that the solution can either be positive or negative since there are positive and negative roots.
v = ±![\sqrt{\frac{2K}{m} }](https://tex.z-dn.net/?f=%5Csqrt%7B%5Cfrac%7B2K%7D%7Bm%7D%20%7D)
Y=4x-7 think this is the answer
We develop an equation for the given situation by first writing the general equation for lines,
y = mx + b
Substituting to this given the values given above,
(1990) 430 = b
(2000) 400 = m(10) + 430
The value of m from the equation in 2000 is -3. Thus, the equation of that relates the variables is,
y = -3x + 430
Answer:
<h2>y = 31</h2>
Step-by-step explanation:
We know: opposite angles in a parallelogram have the same measure.
Therefore we have the equation:
<em>subtract y from both sides</em>
![x=87](https://tex.z-dn.net/?f=x%3D87)
We know: the sum of the angle measures in the triangle is 180°.
Therefore we have the equation:
<em>subtitute x = 87</em>
![42+87+y+20=180](https://tex.z-dn.net/?f=42%2B87%2By%2B20%3D180)
<em>subtract 149 from both sides</em>
![y=31](https://tex.z-dn.net/?f=y%3D31)