Answer:26
Step-by-step explanation:
Answer:
Step-by-step explanation:
If y varies directly with x, it is:
Constant is -2, it means k= -2
Answer:
220,781.25 cubic cm
Step-by-step explanation:
Given ratio of the diameters = 15:11
Let the actual value of of diameters be 15x and 11x to maintain the ratio of 15:11
Given that smaller one has diameter of 55cm
thus 11x = 55cm
x = 55/11 cm = 5
Thus, diameter of larger ball = 15xcm= 15*5cm =75cm.
we know that radius is half of diameter
Radius = diameter/2
Thus radius of larger ball = 75/2 cm = 37.5 cm.
Volume of sphere is given by ![(4/3)\pi r^3](https://tex.z-dn.net/?f=%284%2F3%29%5Cpi%20r%5E3)
we know that ball has spherical shape
thus volume of larger ball is calculated as given below
![volume \ of \ ball = (4/3)\pi r^3\\=> volume \ of \ ball = (4/3)*3.14* 37.5^3\\=> volume \ of \ ball = (4/3)*3.14* 37.5^3\\=> volume \ of \ ball = 220,781.25](https://tex.z-dn.net/?f=volume%20%5C%20of%20%5C%20ball%20%3D%20%284%2F3%29%5Cpi%20r%5E3%5C%5C%3D%3E%20volume%20%5C%20of%20%5C%20ball%20%3D%20%284%2F3%29%2A3.14%2A%2037.5%5E3%5C%5C%3D%3E%20volume%20%5C%20of%20%5C%20ball%20%3D%20%284%2F3%29%2A3.14%2A%2037.5%5E3%5C%5C%3D%3E%20volume%20%5C%20of%20%5C%20ball%20%3D%20220%2C781.25)
Thus, volume of larger ball is 220,781.25 cubic cm
<h3>
Answer: Choice B</h3>
Doug borrowed $2 from his friend every day from Monday through Friday. How much money does Doug owe in all?
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Explanation:
The notation 5(-2) is the same as saying "5 times negative 2"
The negative represents the amount of debt that Doug goes into when borrowing that $2. When borrowing the same amount over the course of 5 days, he'll be in debt a total of 10 dollars. So we'd write -10 to represent this.
You could also write it out the longer way
-2 + (-2) + (-2) + (-2) + (-2) = -10
There are five copies of "-2" being added up to arrive at -10
Though it's much simpler to say
5(-2) = -10
Answer:
2340
Step-by-step explanation:
Formulae for sum of interior angles is 180(n-2)
Whereby n=number of sides
![180(15 - 2) \\ 180(13) \\ = 2340degrees](https://tex.z-dn.net/?f=180%2815%20-%202%29%20%5C%5C%20180%2813%29%20%5C%5C%20%20%3D%202340degrees)