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lions [1.4K]
3 years ago
5

Find the surface area of the cylinder using pie.

Mathematics
2 answers:
Anna71 [15]3 years ago
5 0
The answer is 99 your welcome
densk [106]3 years ago
5 0

Answer:

≈1130.97336 yd

Step-by-step explanation:

the formula to find the surface is A= 2 π r h + 2 π r 2

where r is the radius and h the height. you subsitute it with your value.

r = 9 yd and h = 11 yd

so, A= 2 π r h + 2 π r 2 = 2 x π x 9 x 11 + 2 x π x 9^2 ≈ 1130.97336 yd

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jaylen made a scale model of the washington monument. the monument has an actual height of 555 feet jaylens model used a scale o
dolphi86 [110]

Answer:

6.04 inches

Step-by-step explanation:

Given: The actual height of the monument = 604 feet

The scale used by Corbins  is 1 inch = 100 feet

It implies in Corbins model 1 feet

Therefore, The height of the Corbins model in inches=

Hence, the height of the Corbins model in inches= 6.04 inches

6 0
2 years ago
Given that f.x 3x-2 over x+1 g[x] x +5 evaluate f[-4] and gf [-2]
Jobisdone [24]

The value of f[ -4 ] and g°f[-2] are \frac{14}{3} and 13 respectively.

<h3>What is the value of f[-4] and g°f[-2]?</h3>

Given the function;

  • f(x) = \frac{3x-2}{x+1}
  • g(x)=x+5
  • f[ -4 ] = ?
  • g°f[ -2 ] = ?

For f[ -4 ], we substitute -4 for every variable x in the function.

f(x) = \frac{3x-2}{x+1}\\\\f(-4) = \frac{3(-4)-2}{(-4)+1}\\\\f(-4) = \frac{-12-2}{-4+1}\\\\f(-4) = \frac{-14}{-3}\\\\f(-4) = \frac{14}{3}

For g°f[-2]

g°f[-2] is expressed as g(f(-2))

g(\frac{3x-2}{x+1}) =  (\frac{3x-2}{x+1}) + 5\\\\g(\frac{3x-2}{x+1}) =  \frac{3x-2}{x+1} + \frac{5(x+1)}{x+1}\\\\g(\frac{3x-2}{x+1}) =  \frac{3x-2+5(x+1)}{x+1}\\\\g(\frac{3x-2}{x+1}) =  \frac{8x+3}{x+1}\\\\We\ substitute \ in \ [-2] \\\\g(\frac{3x-2}{x+1}) =  \frac{8(-2)+3}{(-2)+1}\\\\g(\frac{3x-2}{x+1}) =  \frac{-16+3}{-2+1}\\\\g(\frac{3x-2}{x+1}) =  \frac{-13}{-1}\\\\g(\frac{3x-2}{x+1}) =  13

Therefore, the value of f[ -4 ] and g°f[-2] are \frac{14}{3} and 13 respectively.

Learn more about composite functions here: brainly.com/question/20379727

#SPJ1

6 0
1 year ago
Marvin is comparing two different music websites. Website A charges $10 per month for a subscription and $0.25 per song. Website
Alecsey [184]
Website A:
c = 10 + 0.25 s 
where c is the cost and s is the number of songs.
Website B:
c = 0.75 s
The equation ( answer ):
10 + 0.25 s = 0.75 s
We can solve this equation:
10 = 0.5 s
s = 10 : 0.5
s = 20 ( Marvin would have to buy 20 songs to to make the costs equal )
5 0
3 years ago
A square base a side length of x+3. What is its area
zepelin [54]
Well it would be (x+3)(x+3)
using the FOIL method you end up with:
x^2 + 6x + 9

:D
6 0
3 years ago
12 x+12y = 156<br> 4x + 6y =62 I need help please
mojhsa [17]

Answer:

{x,y}={8,5}

Step-by-step explanation:

12x + 12y = 156  4x + 6y = 62

8 0
2 years ago
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