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3 years ago

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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Frank and Linda just finished a meal and received their bill for $47.60. They would like to leave their server a 20 percent tip.

ankoles [38]

Answer:

$57.12

Step-by-step explanation:

47.60(1.20)=$57.12

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3 years ago

Cherries cost 4 dollars per pound. Mother bought r lbs and father bought 2 lbs. How much more money did mother spend on cherries

vazorg [7]

T= the total cost

T=4r+2

4 0

3 years ago

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What are the solutions to the equation x - 7/x = 6

bearhunter [10]

The answer is C that is X=7 and X=-1

multiple x through the given equation to get rid of a fraction. It will be

${x}^{2} - 7 = 6x$

After that bring 6X to the LHS of the equation

so that it will look like the general equation that is

${x}^{2} - 6x - 7 = 0$

Use the quadratic formula (or any other approach to find the values of x

You will arrive at

$x = 7. - 1$

3 0

3 years ago

Find the value of x.

agasfer [191]

Answer:

$\boxed {\boxed {\sf A. \ 18}}$

Step-by-step explanation:

The two angles are inside a right angle. The small box signifies a right angle/ 90° angle.

Therefore, the sum of the angle measures must equal 90. We can set up an equation.

$56+(x+16)=90$

Combine the like terms on the right side. The 2 constants: 56 and 16 can be added.

$(56+16)+x=90\\$

$72+x=90$

Since we are solving for x, we must isolate the variable. 72 and x are being added. The inverse of addition is subtraction, so subtract 72 from both sides.

$72-72+x=90-72$

$x=18$

x is equal to 18 and choice A is correct.

6 0

3 years ago

Evaluate the expression. 2.15(3)2

Jet001 [13]

Answer: 12.9

Step-by-step explanation: When any number is in parenthesis, you multiply it by the other numbers/variables.

7 0

3 years ago

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