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3 years ago

How are pyramids and cones different than prisms and cylinders?

Mathematics

2 answers:

lawyer [7]3 years ago

8 0

pyramids are prisms that come to a point and cones are cylinders that come to a point

vazorg [7]3 years ago

7 0

Answer:

A prism is a polyhedron which has two congruent bases and a pyramid has only one base

A cylinder has two circular bases such that it's sides are curved not flat.

A cone has only one circular base with one vertex.

Step-by-step explanation:

A prism and a prism are three dimensional figures with sides and faces as polygons.

A prism is a polyhedron which has two congruent bases and a pyramid has only one base.

The base is not of the form of circle or oval.The sides and bases are always polygons.

The base can be square , triangle , rectangle etc.

Cone and cylinder are also three dimensional figures with some differences.

A cylinder has two circular bases such that it's sides are curved not flat.

A cone has only one circular base with one vertex.

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2/3 / 4/5

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Step-by-step explanation:

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3 years ago

A person invests $2,740 in an account that earns 4.3% annual interest. Find when the value of the investment reaches $7,000. If

Juli2301 [7.4K]

So, to set up your equation is the hardest part. If you remember the basic format, you're set.

I(t) = P * (1+r%)^t

t= time and this will be our variable

Initial amount P = $2740

Rate = 4.3% which converts numerically into .043

I(t) = 7000

Before we get to find out how to find how many years it takes to get to $7000, set up the basic equation by plugging in what we know.

I(t) = $2740(1+4.3%)^t

I(t)=2740(1.043)^t

Now plug in for $7000 for I(t)

7000=2740(1.043)^t Divide both sides by 2740

7000/2740 = 2740/2740(1.043)^t

2.55474453=(1.043)^t

Now you can solve for t in two ways. You can either use the natural log or graph it on your graphing calculate and see when the two equations meet.

In your calculator you can set up:

ln(2.55474453)/ln(1.043) = t which is the method I prefer since it's much simpler

t=22.278528

but you can also graph it in your ti-84

with

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3 years ago

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Answer:

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the frequencies of there alternatives are;

Frequency A = 60

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Total = 60 + 12 + 48 = 120

Now to determine our relative frequency, we divide each frequency by the total sum of the given frequencies;

Relative Frequency A = Frequency A / total = 60 / 120 = 0.5

Relative Frequency B = Frequency B / total = 12 / 120 = 0.1

Relative Frequency C = Frequency C / total = 48 / 120 = 0.4

therefore;

CLASS FREQUENCIES RELATIVE FREQUENCIES

A 60 0.5

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