I will give brainliest to whoever helps me with this question. Also, if you could please explain to me how you solved it I would
appreciate it!
1 answer:
Answer:
96π
Step-by-step explanation:
You will need the formula for the volume of a cone.
π
h
r= 6 cm
To find the height, you need to use the Pythagorean theorem.
a²+ b² = c² (a and b are the 2 legs and c is the hypotenuse)
b =
b= = 8
h= 8 cm
remember PEMDAS!
π
8
π(36)8
π(12)8
V= 96π
Answering in terms of π is more accurate because it is actually infinite so when it gets rounded to 3.14, that is only an approximation of pi. (π is actually 3.1415926535897932384626433 etc.)
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Answer:
C. $118,000 and $110,000, respectively.
Step-by-step explanation:
Please consider the complete question.
An automobile firm wants to purchase either machine A or machine B. The intial cost of machines A and B are $40,000 and $50,000, respectively. The power consumption per year of machines A and B are 120 MWh and 100 MWh, respectively. The power cost is $40/MWh. The estimated operating and maintenance cost over 10 years is $30,000 for machine A and $20,000 for machine B.
First of all, we will find the amount spent on power consumption for 10 years by each machine as:
Now, we will find overall cost of machines A and B by adding initial cost, power consumption for 10 years and maintenance cost as:
Therefore, the overall cost of machines A and B are $118,000 and $110,000, respectively and option C is the correct choice.