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algol [13]
3 years ago
11

Find the surface area. Use 3.14 for pi

Mathematics
2 answers:
Tatiana [17]3 years ago
5 0

Answer:

S=1444.4

Step-by-step explanation:

they already gave the formula so

13 is the height, 10 is the radius

plug it in to the formula (using 3.14 for pi)

S=2(3.14)(10)^2+2(3.14)(10)(13)

S=628+816.4

S=1444.4

Zarrin [17]3 years ago
4 0

Answer:

1444.4 ft.

Step-by-step explanation:

Using the formula, 2πr² + 2πrh, we can plug-in the unknown values.

'π' means pi; 'r' means radius; 'h' means height.

The radius is 10; the height is 13.

3.14 is used for pi.

(2π10²) + (2π10 · 13) = 1444.4.

Therefore, the surface area of this cylinder is 1444.4 ft.

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Question 3(Multiple Choice Worth 4 points) (08.06) An unknown number y is 10 more than an unknown number x. The number y is also
siniylev [52]

Answer:

Add the equations to eliminate x

Step-by-step explanation:

Let's go through each of these statements

1) Add the equations to eliminate x

   y = x + 10

+

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3 years ago
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zheka24 [161]

Answer:

6.7

Step-by-step explanation:

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4 years ago
The base of a right rectangular prism has an area of 84.6 square centimeters and a height of 7 centimeters. What is the volume,
AlladinOne [14]

Answer:

The volume of the right rectangular prism is  592.2cm³

Step-by-step explanation:

To calculate the volume of a rectangular prism we have to multiply the area of ​​the base by the height

a = area of the base = 84.6cm²

h = height = 7cm

v = volume

v = a * h

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The volume of the right rectangular prism is  592.2cm³

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3 years ago
PLS HELP ASAP GIVE BRAINLIEST TO PERSON WHO ANSWER CORRECTLY
Paladinen [302]

Answer:

  1. B.) , ratio of 20:1
  2. C.) , There are 11 costumers per tower and 11000 costumers in total

Step-by-step explanation:

Please mark brainliest...

  1. multiply each value of the C. by 1,000 to get the # of C.s
  2. divide the # of C.s / T.s
  3. this gives you C.s per T.
  4. Convert to ratio format
  5. there is on average 15 to 20 C.s per T.
  • 5250/273 = 14.075
  • 6250/325 = 19.230
  • 7250/377 = 19.230
  • 9250/273 = 19.230
  1.    <u>6250</u>  = <u>  y   </u>

             377        572

    2.  multiply both sides by 572

    3. 572 .  <u>6250</u> = y

                   377

   4. divide known pair

572 x 19.230 = y

   5. solve for y

   6. y = 10999.56

   7. divide y value by 1000

   8. 10.99956

   9. round to the nearest whole #

   10. There are 11 costumers per tower and 11000 costumers in total  

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3 years ago
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