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Lubov Fominskaja [6]
3 years ago
14

Select the figure obtained when rotating the figure about an axis along its largest side, and find the exact surface area of the

resulting figure. A rectangle with length 19 and width 17. The figure obtained is a

Mathematics
1 answer:
Talja [164]3 years ago
4 0

Answer:

Figure obtained - Cylinder

Surface area of the cylinder is 1224π square units.

Step-by-step explanation:

When a rectangle is rotated about an axis along its largest side, a cylinder having radius 17 and height 19 units is formed.

Surface area of the cylinder = 2πr(h + r)

By substituting r = 17 units and h = 19 units in the given formula,

Surface area = 2π(17)(17 + 19)

                     = (34)(36)π

                     = 1224π

Therefore, surface area of the cylinder is 1224π square units.

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2log(base 5)^(x-3)-log(base 5)^8= log(base 5)^2
Alja [10]

Answer:

x = 7

Step-by-step explanation:

2log_5(x-3)-log_58= log_52\\\\2log_5(x-3) =log_52+log_58\\\\2log_5(x-3) =log_5(2\times 8) \\\\2log_5(x-3) =log_516\\\\2log_5(x-3) =log_54^2 \\\\2log_5(x-3) =2 log_54 \\\\log_5(x-3) =log_54 \\\\x - 3 = 4\\\\x = 4+3\\\\\huge \orange { \boxed{x = 7}}

7 0
3 years ago
Can someone help me please !???
AfilCa [17]

Answer:

3 (x-12) (x+2)

Step-by-step explanation:

3 ( x^2 - 10 x - 24)

3 (x-12) (x+2)

Please mark for Brainliest!! :D Thanks!!

For more questions or more information, please comment below!

8 0
3 years ago
I need help with these two questions
Mandarinka [93]

Answer:

(-2,-2)

Step-by-step explanation:

for question number 15...cordinated grid shows each equation...first equation is represented by straight line going upwards through +4 in y axis...(y=3x+4)...

point is....every point in this two lines represent a possible x and y value for each equation...and there is a point where these lines meet each other....in that point...x and y values are possible values for both equations.so answer is (-2,-2)...this cordination satisfy each pairs of equation...you can try using -2 for x in both equations and get -2 as the answer for y...that proves the point..try it for 16 quiz.good luck

5 0
3 years ago
Please help. It’s a picture
Korolek [52]
$260

I don’t know what model/formula you are supposed to be using.

But what I did first was calculated what 30% of 2700$ is.
2700 x .3 = 810

So it depreciates $810 per year.

$810 x. 3 years = 2430

2700 - 2430 = 260

In three years, the laptop will be worth $260
6 0
3 years ago
Solve for x and select your answer from the multiple choices.​
Alchen [17]

Answer:

x=3

Step-by-step explanation:

3x+5=14

   -5  -5

3x=9

/3  /3

x=3

3 0
3 years ago
Read 2 more answers
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