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Mila [183]
3 years ago
13

Find surface area of regular pentagon, explain in detail.

Mathematics
1 answer:
Andrej [43]3 years ago
3 0

Answer:

SA = 299600 m²

Step-by-step explanation:

Equation for the surface area of a prism:

SA = 2 * Area of base + Perimeter of base * height

1. Perimeter of the base: 280 * 5 = 1400 m

2. Area of the base: 0.5 * apothem * perimeter -> 0.5 * 192 * 1400 = 134400 m²

Plug in: SA = 2 * 134400 + 1400 * 22 -> SA = 268800 + 30800 ->

SA = 299600 m²

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Someone please help me!
Lina20 [59]

Answer:

The fraction 58/60 is equal to 29/30 when reduced to lowest terms. To find equivalent fractions, just multiply the numerator and denominator of that reduced fraction (29/30) by any interger number, ie, multiply by 2, 3, 10, 30... 58/60 is equivalent to 29/30 because 29 x 2 = 58 and 30 x 2 = 60

Step-by-step explanation:

Dont know if this helps but i hope it does!

5 0
3 years ago
Read 2 more answers
Simplify the expression:<br> -3(6 - 1.5n)=
Tatiana [17]

Answer:

Step-by-step explanation:

Use distributive property: a*(b +c) =a*b + a*c

-3( 6 - 1.5n) = (-3)*6 - (-3)*1.5n

                  = -18 + 4.5n

3 0
3 years ago
Read 2 more answers
Please help me with this
Liula [17]

Answer:

x = 23

Step-by-step explanation:

if line j is parallel to line k then

5x + 9 + 33 + x = 180 add like terms

6x + 42 = 180 subtract 42 from both sides

6x = 138 divide both sides by 6

x = 23

8 0
3 years ago
Which of the equations below contains the two points listed? (-8,-3) and (-8,1)
NemiM [27]

The equation x = -8 contains the two points (-8 , -3) and (-8 , 1) ⇒ 2nd answer

Step-by-step explanation:

Let us revise the equations of the horizontal and vertical lines

  • The equation of a horizontal line passes through point (a , b) is y = b, because all points lie on the line have the same y-coordinate b
  • If a line passes through two points have the same y-coordinates, then the line is horizontal
  • The equation of a vertical line passes through point (a , b) is x = a, because all points lie on the line have the same x-coordinate a
  • If a line passes through two points have the same x-coordinates, then the line is vertical

∵ The line contained the two points (-8 , -3) and (-8 , 1)

∵ The two points have the same x-coordinate = -8

- From the 4th note above

∴ The line is vertical

∵ The equation of a vertical line is x = the x-coordinate of any point

   on the line

∵ The x-coordinate of the points on the line = -8

∴ The equation of the line is x = -8

The equation x = -8 contains the two points (-8 , -3) and (-8 , 1)

Learn more:

You can learn more about the equation of a line in brainly.com/question/2657284

#LearnwithBrainly

7 0
3 years ago
Read 2 more answers
What are the zeros of the function?
Mashutka [201]

Answer:

the answers are -6,0,2

i hope this helped.

5 0
3 years ago
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