kratose
04.03.2020 •
Mathematics
The equation shown is used to find the volume of a cylinder, V , were r is the radius and h is the height. v/r^2 = pi h
which equation correctly shows the radius?
r=√v / πh
r= √v/πh
r=√πh / v
r=√πh/v
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Ответ:
Option B
Step-by-step explanation:
The cylinder’ volume (density) indicates how much amount of materials it can able to carry or how much amount of material it can immerse in it. The formula for volume of cylinder is given as:
where
V = volume of cylinder
r = radius of cylinder
h = height of cylinder
In order to find radius following simplifications are done:
⇒
Keep the factor 'r' in one side and keep other in one side as below,
⇒
Taking square root on both sides,
⇒
⇒
Therefore, option b is correct as
.
Ответ:
y = -x - 1
Step-by-step explanation:
1. The slope-intercept form of any linear equation is y = mx + b, where y = y-coordinate, m = slope, x = x-coordinate, and b = y-intercept.
2. To find the slope given two points, we can use the formula
and plug in the corresponding variable.
3. Okay, so the slope is -1x or just -x. This means that the equation looks like this so far: y = -x + b
4. To find b, the y-intercept, we can take the equation of
and plug in the values!
5. Now that we have our y-intercept and slope, let's plug in those values and find the equation!
Therefore, the equation of the line is y = -x - 1. I hope this helped you!