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jok3333 [9.3K]
3 years ago
6

A cone has a volume of 226.08 cubic millimeters and a height of 6 millimeters. What is its

Mathematics
2 answers:
dezoksy [38]3 years ago
6 0

Answer:

r≈5.36656314

Step-by-step explanation:

Since A=πr(r+\sqrt{h^2+r^2}) so we get that 226.08/pi≈72 or 226.08/3.14=72 we then plug it in to get 72=r(r+\sqrt{36+r^2}) so we get r≈5.36656314

scZoUnD [109]3 years ago
3 0

Answer:

r = 6 mm

Step-by-step explanation:

h = 6 mm

Volume of cone = 226.08 cubic mm

\frac{1}{3}*\pi *r^{2}*h = 226.08\\\\\frac{1}{3}* 3.14 *r^{2}*6 = 226.08\\\\3.14*r^{2}*2=226.08\\\\r^{2}=\frac{226.08}{2*3.14}\\\\r^{2}=36\\r=\sqrt{36}\\

r = 6 mm

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Dafna1 [17]

Answer: It will take it 3 seconds before getting to the chicken

6 0
2 years ago
How much fabric is needed to make a tent in the shape of a triangular prism with the following measures?
marshall27 [118]

Answer:

C) 273 ft²

Step-by-step explanation:

7x11x3=231

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3 0
3 years ago
The age of some lecturers are 42,54,50,54,50,42,46,46,48 and 48 calculate the mean age and standard deviation
rjkz [21]

Answer:

Mean age: 48

Standard deviation: 4

Step-by-step explanation:

a) Mean

The formula for Mean = Sum of terms/ Number of terms

Number of terms

= 42 + 54 + 50 + 54 + 50 + 42 + 46 + 46 + 48+ 48/ 10

= 480/10

= 48

The mean age is 48

b) Standard deviation

The formula for Standard deviation =

√(x - Mean)²/n

Where n = number of terms

Standard deviation =

√[(42 - 48)² + (54 - 48)² + (50 - 48)² +(54 - 48)² + (50 - 48)² +(42 - 48)² + (46 - 48)² + (46 - 48)² + (48 - 48)² + (48 - 48)² / 10]

= √-6² + 6² + 2² + 6² + 2² + -6² + -2² + -2² + 0² + 0²/10

=√36 + 36 + 4 + 36 + 4 + 36 + 4 + 4 + 0 + 0/ 10

=√160/10

= √16

= 4

The standard deviation of the ages is 4

3 0
3 years ago
An item on sale costs 80% of the original price. The original price was $22.
sergejj [24]

Answer:

17.6

Step-by-step explanation:

22 x .80 =17.6

17.6 is 80% of 22 so that would be your answer

8 0
3 years ago
Determine the unknown integer in each number sentence <br> 4 - ___ = 31
polet [3.4K]
4-x=31
-4=-4 
x=27
27 is the answer
4 0
3 years ago
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