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dybincka [34]
3 years ago
7

A cone is a polyhedron with a circular base. true or false?

Mathematics
2 answers:
klemol [59]3 years ago
5 0
False. Cylinders and cones are not just polyhedrons with circular bases.
Stells [14]3 years ago
4 0

Answer:

No, A cone is not a polyhedron with a circular base.

Step-by-step explanation:

A polyhedron is a solid, three-dimensional shape that has flat faces.

The faces of a polygon are polygons, which means they have straight sides.

Example-Pyramid.

No, cone is not a polyhedron since cone has curved surface and not flat faces.

Though cone is a 3-dimensional figure with circular base and slant height meeting at the vertex.

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Which answer !!!!!!!!!
ycow [4]
The first answer, answer A. It's easy.

3 0
3 years ago
Geoffrey is evaluating the expression (-3)^6(2^6)/(-3)^5(2^2) as shown below.
Alekssandra [29.7K]

Answer:

48.

Step-by-step explanation:

First you multiply the number by itself as many times as the number of the exponent is. In this case you <u>multiply -3 to itself 6 times which makes -729</u>, <u>2 to the 6th power is 64</u>, <u>-3 to the 5th power is -243, and 2 to the 2nd power is 4.</u> Then you <u>multiply -729 by 64 which makes -46656</u> and <u>multiply -243 by 4 which makes -972</u>, and then <u>divide -972 from -46656</u> <em>which makes 48</em>.

3 0
2 years ago
A recent study of 26 city residents showed that the time they had lived at their present address has a mean of 10.3 years with t
svetlana [45]

Answer:

The 95% confidence interval is  9.15<  \mu < 11.45

Step-by-step explanation:

From the question we are told that

     The sample size is  n =  26

      The mean is  \= x =  10.3

       The standard deviation is  s =  3

From the question we are told the confidence level is  95% , hence the level of significance is    

      \alpha = (100 - 95 ) \%

=>   \alpha = 0.05

Generally from the normal distribution table the critical value  of  \frac{\alpha }{2} is  

   Z_{\frac{\alpha }{2} } =  1.96

Generally the margin of error is mathematically represented as  

      E = Z_{\frac{\alpha }{2} } *  \frac{\sigma }{\sqrt{n} }

=>   E =  1.96 *  \frac{3}{\sqrt{26} }

=>   E = 1.1532

Generally 95% confidence interval is mathematically represented as  

      \= x -E <  \mu <  \=x  +E

=>   10.3  -1.1532 <  \mu < 10.3  +  1.1532

=>    9.15<  \mu < 11.45

7 0
3 years ago
What are the solutions to x2 - 2x -8=0?
pav-90 [236]
The answer is 2
Add like terms
Add 8 to -8 and the zero
To get 4x=8
Then divide 4 and 8 by 4
To get x=2
4 0
3 years ago
HOW many 1/4 teaspoon doses are in 7/8 teaspoon of medicine
anzhelika [568]
Hi there!

There is 1 3/4 doses, each with 1/4 teaspoons.

Could you please Brainliest me?
4 0
3 years ago
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