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TiliK225 [7]
3 years ago
5

The radius of a cylindrical gift box is ​(3x +4)) inches. The height of the gift box is twice the radius. What is the surface ar

ea of the​ cylinder? Write your answer as a polynomial in standard form.
Mathematics
1 answer:
musickatia [10]3 years ago
8 0
The answer is 54πx² + 144πx + 96π

The surface area of cylinder (SA) is:
SA = 2 π r h + 2 π r²

<span>The height of the gift box is twice the radius: h = 2r

r = 3x + 4
h = 2(3x + 4) = 6x + 8

SA = </span>2 π r h + 2 π r²
SA = 2π (r * h + r²)
SA = 2π ((3x + 4)(6x + 8) + (3x + 4)²)
SA = 2π(18x² + 24x + 24x + 32 + 9x² + 24x + 16)
SA = 2π(27x² + 72x + 48)
SA = 54πx² + 144πx + 96π
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egoroff_w [7]
Bruh
so toal cost=28 right?

total cost=total cost of water+total cost of tickets
water=3
subsitute 28=total cost and 3=total cost of water

28=3+total cost of tickets
remember we can do anything to an equaton as long as you do it to both sides

28=3+total cost of tickets
subtract 3 from both sides
28-3=3-3+total cost of tickets
25=0+cost of tickets
25=cost of tickets

if he bought 5 tickets, how much does each cost
25=5tickets
divide both sides by 5
25/5=5/5tickets
5=1tickets

answer is 1 ticket cost $5.00

equation is
total cost=water+tickets
28=3+5tickets
7 0
3 years ago
Read 2 more answers
Which sequence of transformations takes figure B to its image B'?
marin [14]

Answer:

D. a reflection in the y-axis, followed by a counterclockwise rotation of 270 about the origin

Step-by-step explanation:

Well, the first obvious step is to reflect it across the y-axis. Now, for the next step, since we do not have a <em>90°-clockwise rotation </em>option, we have to go with something similar to that, which would be a <em>270°-counterclockwise</em> <em>rotation</em><em>.</em><em> </em>If you think about it, since 3 × 90 is 270, and rotating this figure 90° clockwise [one rotation] would go from Quadrant III to Quadrant II, going the other way around [270°counterclockwise (three rotations)] will also go from Quadrant III to Quadrant II [to Quadrant IIII to Quadrant I to Quadrant II].

I am delighted to assist you anytime my friend.

5 0
4 years ago
What is the volume, in cubic in, of a cube with an edge length of 15in?
ella [17]

Answer:

Volume of a 15 Inch Cube.

Step-by-step explanation:

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Hope this helps.

4 0
4 years ago
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givi [52]

Answer:

x2 - 5x - 6 + -23/x-3Step-by-step explanation:

6 0
3 years ago
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Determine the slope of the line that passes through each pair of points. (-2,1) and (0,-2)
AysviL [449]

Answer:

slope = - \frac{3}{2}

Step-by-step explanation:

Calculate the slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

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m = \frac{-2-1}{0+2} = \frac{-3}{2} = - \frac{3}{2}

7 0
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