2:10 and 4:20
therfor
1:5
times 5
5:25
answer is 25 minutes
Answer:
1/5
Step-by-step explanation:
1/5
There are several ways you can answer this. The law of cosines may be helpful. It tells you
... c² = a² + b² - 2ab·cos(C)
or
... cos(C) = (a² + b² - c²)/(2ab)
If this value is negative, then angle C is obtuse. Since 2ab is always positive, it amounts to finding the sign of
... a² + b² - c²
Of course, for repetitive calculations, a spreasheet or other machine evaluator is helpful.
The results shown in the figure indicate that side lengths {5, 7, 8} result in an acute triangle.
A reasonable estimate is like 8 or 9 or maybe even 10
hope this helps
Answer:
Height = 7 meters
Step-by-step explanation:
Equation:
To work out the height, you need to know the formula for the volume of a cone which is:
Explaining variables:
- mathematical constant.
- radius of the cone
- height of the cone
- volume of the cone
Working out the height:
We are looking for the height, so let's re-arrange the equation.
We are given the height, volume and diameter.
To work out the radius we have to know that . So the radius is m.
Now let's put everything in the equation for the height to work it out.
meters.
Therefore, the height of the cone is 7 meters.