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3 years ago

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Dana has n quarters. Ivan has 2 fewer than 3 times the number of quarters Dana has. The expression n + 3 n−2 gives the number of

quarters they have altogether. Which is another way to write this expression?

1 answer:

Nesterboy [21]3 years ago

3 0

You can "collect terms" and write it as
4n -2

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A solid shape is made by joining two cones.

dlinn [17]

The surface area of the solid shape is the amount of space on it

The radius of the two cones is 2.93 cm

<h3>How to determine the radius?</h3>

The given parameters are:

Cone 1: slant height, l = 2r
Cone 2: slant height, L = 3r
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The surface area of the shape is calculated using:

T = πr(L + l)

So, we have:

135.21 = πr(2r + 3r)

Evaluate

135.21 = 5πr²

Divide both sides by 5π

r² = 135.21/5π

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Take the square root of both sides

r = 2.93

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Simplify<br><br> a+a+a=<br> 4b-b<br> 3x2+x2

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<h2>Good morning,</h2>

<em><u>__________________</u></em>

<em><u>Answer</u></em>:

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<u>Step-by-step explanation:</u>

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