A silo is constructed using a cylinder with a hemisphere on top. The circumference of the hemisphere and the circumference of the cylinder are equal. The diameter of the circular base of the cylinder is 10 feet. The cylinder is 40 feet tall. One of the circular bases on the cylinder is in contact with the ground. What is the area of the surface of the silo that will be exposed to rain, wind, and sun?

Answers

Answer 1

Final answer:

The area of the surface of the silo that will be exposed to rain, wind, and sun is 450π square feet.

Explanation:

Solution:

To find the area of the surface of the silo that will be exposed to rain, wind, and sun, we need to find the combined surface area of the hemisphere and the cylinder.

The radius of the circular base of the cylinder is half of its diameter, which is 10/2 = 5 feet.The height of the cylinder is 40 feet.The circumference of both the hemisphere and the cylinder is equal, so the circumference of the circular base of the cylinder is 2πr, where r is the radius of the base.The surface area of the hemisphere is equal to half of the surface area of a sphere with the same radius, which is 2πr²/2 = πr².The surface area of the circular base of the cylinder is πr².The surface area of the curved surface of the cylinder is the circumference of the base multiplied by the height of the cylinder, which is 2πr * 40.

Now, let's calculate:

Surface area of the hemisphere = π(5)^2 = 25π square feetSurface area of the circular base of the cylinder = π(5)^2 = 25π square feetSurface area of the curved surface of the cylinder = 2π(5) * 40 = 400π square feet

To find the total surface area, we add up the surface areas of the hemisphere, the circular base, and the curved surface:

Total surface area = Surface area of hemisphere + Surface area of circular base + Surface area of curved surface = 25π + 25π + 400π = 450π square feet.

Therefore, the area of the surface of the silo that will be exposed to rain, wind, and sun is 450π square feet.

Related Questions

HELP ME PLEASE I DONT UNDERSTAND THIS PROBLEM!!!!! Worth 20PT
a ball is thrown with a slingshot at a velocity of 100 ft/sec at an angle 21 above the ground from a height of 5ft approximately how long does it take for the ball to hit the ground? acceleration due to gravity is 32 ft/s^2

Answers

It takes approximately 6.3 seconds to hit the ground.

We use the equation h(t)=-1/2gt²+v₀t+h₀ to set this up. g is the acceleration due to gravity, v₀ is the initial velocity and h₀ is the initial height:
h(t) = -1/2(32)t² + 100t + 5
h(t) = -16t² + 100t + 5

We will use the quadratic formula to solve this:
[tex]t=\frac{-b\pm\sqrt{b^2-4ac}}{2a} \\ \\=\frac{-100\pm\sqrt{100^2-4(-16)(5)}}{2(-16)} \\ \\=\frac{-100\pm\sqrt{10000--320}}{-32} \\ \\=\frac{-100\pm\sqrt{10320}}{-32} \\ \\=\frac{-100\pm101.59}{-32} \\ \\=\frac{-100+101.59}{-32}\text{ or }\frac{-100-101.59}{-32} \\ \\=\frac{1.59}{-32}\text{ or }\frac{-201.59}{-32} \\ \\=-0.05\text{ or }6.3[/tex]

Since a negative amount of time makes no sense, the answer is 6.3.

Answer:

D) 2.37 seconds

Step-by-step explanation:

Took the test and got it wrong.

It takes 60 pounds of seed to completely plant a 10-acre field. How many acres can be planted per pound of seed

Answers

Hello!

You divide the amount of space planted by the weight of seeds it took

10 / 60 = 0.6

It takes 0.6 pounds of seeds to plant 1 acre of land

Hope this helps!

98 POINTS AND BRAINLIEST!!!!!!!!!!!

Answers

p(x) = (r-c)(x)
p(x) = r(x) - c(x)
p(x) = [ r(x) ] - [ c(x) ]
p(x) = [18x] - [5x+20]
p(x) = 18x - 5x - 20
p(x) = 13x - 20

Answer is choice A

Hello!

I believe the answer is A) p(x) = 13x -20.

I hope it helps!

What is true about side AB and side AD?

Answers

Side AB and side AD are perpendicular because they cross at a ninety degree angle, and the sides are also the same length.

Sharon wants to know the difference between the average amount she stacked and the average amount Diane stacked. Which operation would she use to find the difference?

Answers

Sharon would subtract the amount that she stacked from Diane to figure out the difference.

Hope this helped :D

For which angle is secant undefined?
30°
45°
180°
270°

Answers

180
The secant is undefined at angle values that represent 1/4 and 3/4 of a full circle. At these angles, the triangle geometrically vanishes into a simple line segment on the Y axis. The value of the triangle's adjacent side is zero and division by zero is undefined.

Answer:

the answer is 180 degrees

Step-by-step explanation:

i used my head and my google maths

Algebra question ( Matrices and Determinants ) 20 points

Answers

The correct answer is option A
A. -30
The determinant of B = -18*1 -3*4 = -18-12 = -30

Which expression is equivalent to x3 – 7x – 6?

Answers

The zeros of the function are -2, -1, and 3.
The function is f(x) = (x + 2)(x + 1)(x - 3)
Answer is D.

How many times larger is 4 x 1016 than 5 x 108?

Answers

4 × 1,016 = 4,064

5 × 108 = 540

4,064 ÷ 540 = 7.5

Answer = 7.5

~Aamira~

Hope this helped☺☺

3(−4x) + 3(5) = 12

−12x + 15 = 12

−12x + 15 − 15 = 12 − 15

−12x = −3

x =

Answers

x = -3 / -12 = 1/4 Answer

Answer: 1/4

don't forget to rate and thank plz.

katy buys ‘x’ cakes.
Gugu buys 3 times as many cakes as katy.
Deanna buys 2 more cakes than Katy.

Each cake costs 85p
The total of the cakes is £52.70

How many cakes did each girl buy?

Answers

Answers:
Katy bought 12 cakes
Gugu bought 36 cakes
Deanna bought 14 cakes

Explanation:
We are given that:
Katy bought x cakes
Gugu bought 3 times as many as Katy. This means that Gugu bought 3x cakes
Deanna bought 2 cakes more than Katy. This means that Deanna bought x+2 cakes

Total number of cakes bought = x + 3x + x + 2 = 5x + 2 cakes

We know that the price of each cake is 85 p = £0.85 and that the total amount paid is £52.7
This means that:
(5x+2)(0.85) = 52.7
4.25x + 1.7 = 52.7
4.25x = 52.7 - 1.7
4.25x = 51
x = 51 / 4.25
x = 12

Now, we will get the number of cakes that each bought as follows:
Katy bought x cakes = 12 cakes
Gugu bought 3x cakes = 3(12) = 36 cakes
Deanna bought x+2 cakes = 12 + 2 = 14 cakes

Hope this helps :)

Answer:

Katy bought 12 cakes

Gugu bought 36 cakes

Deanna bought 14 cakes

Step-by-step explanation:

Divide 2y2 + 8 by 2y + 4. Which expression represents the quotient and remainder?

Answers

Final answer:

To divide 2y² + 8 by 2y + 4, use long division to find the quotient and remainder.

Explanation:

To divide 2y² + 8 by 2y + 4, we can use long division. Here are the steps:

Divide the first term of the dividend by the first term of the divisor, which gives us y.

Multiply the entire divisor by y to get 2y² + 4y.

Subtract 2y² + 4y from the dividend 2y² + 8 to get 4.

Next, divide 4 by 2y + 4, which gives us 2.

Finally, we have a remainder of 0.

Therefore, the quotient is y + 2 and the remainder is 0.

what is the product? -9x(5-2x) 18x2 -45x -18x2-45x -18x-45 18-45x

Answers

Answer: A.

Step-by-step explanation:

The product of equation is 18x² - 45x.

What is linear equation?

Each term in a linear equation has an exponent of 1, and when this algebraic equation is graphed, it always produces a straight line. It is called a "linear equation" for this reason.

Both linear equations with one variable and those with two variables exist.

Given equation -9x(5 - 2x)

product = -9x(5) - (-9x)(2x)

= -45x + 18x²

= 18x² - 45x

Hence the product is 18x² - 45x.

Learn more about linear equation;

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How to find the area of a triangle with a base of 32ft

Answers

Well to find the area of any figure you must first have knowledge on the formula. The formula for a triangle is 1/2 x b x h. Since you have the base 32, multiply that by 1/2 which will give you 16. Then you have to multiply 16 by the height. I'm not sure what the height is because you never gave me one but hopefully this helped! God bless :)

Cindy and Giovanni plan to make spaghetti sauce. Cindy needs 4 3/4 pounds of tomatoes for her recipe. Giovanni needs 5 /34 pounds of tomatoes for his recipe. If they make both recipes, how many pounds of tomatoes do they need?

Answers

10 2/4, hope it helps!

Answer:

[tex]10\frac{1}{2}\text{ pounds}[/tex]

Step-by-step explanation:

Given,

For a recipe,

Cindy needs tomatoes = [tex]4\frac{3}{4}[/tex] pounds,

While, Giovanni needs tomatoes = [tex]5\frac{3}{4}[/tex] pounds,

If they make both recipes,

Then, total tomatoes they need = [tex]4\frac{3}{4}+5\frac{3}{4}[/tex]

[tex]=\frac{19}{4}+\frac{23}{4}[/tex]

[tex]=\frac{42}{4}[/tex]

[tex]=10\frac{2}{4}[/tex]

[tex]=10\frac{1}{2}\text{ pounds}[/tex]

How can you prove a triangle is a right triangle? select one:a. use the distance formula to see if at least two sides are congruent.b. use the slope formula to see if any sides are perpendicular.c. use the distance formula to see if all three sides are congruent.d. use the slope formula to see if any sides are parallel?

Answers

B.
__________________

please help me figure out this probability problem!!!

Answers

10 + 5 + 1 = 16 - all balls
The probability that the first ball is red: [tex]P(R)=\dfrac{10}{16}=\dfrac{5}{8}[/tex]
The probability that the second ball is black: [tex]P(B)=\dfrac{1}{15}[/tex]
Together:[tex]P(R)\cdot P(B)=\dfrac{5}{8}\cdot\dfrac{1}{15}=\dfrac{1}{24}[/tex]

10 + 5 + 1 is 16. There are 10 red balls, and there are 16 balls altogether. If you’re asking for a fraction, it would be 10/16. 10/16 as a simplified fraction is 5/8. The probability that the first ball is red is 5/8. There is one black ball, and 16 altogether. If you’re asking for a fraction, it would be 1/16. 1/16 can’t be simplified anymore because it is already in its lowest terms. So the probability of drawing out a black ball is 1/16.
So your answers are....

First ball being red: 5/8

Second ball being black: 1/16

Hoped this helped. Have a nice day!

What is the 12th term of the sequence? 3, −9, 27, −81, 243, ...

531441
−531441
177147
−177147

Answers

The answer would be B. -531,441.

There are 2 ways you can find this.

A. You can find this by starting with 3, and multiply -3 then multiply -3 to each product after that 11 times. Or...

B. Simply find 3 to the 12th power. Then add a negative since each even term (term 2, 4, 6, etc) are negative.

I hope this helps!

Anna and Ryelin together have 895 songs downloaded. Ryelin has 177 more songs downloaded than Anna. How many songs do each of them have?

Answers

Let,
x = number of songs downloaded by Anna
y = number of songs downloaded by Ryelin

Then,
x + y = 895 ----- (1)

But, it is also indicated that,
y = x+177

Substituting for y in (1);
x+(x+177) = 895
2x + 177 = 895
2x = 895-177 = 718
x = 718/2 = 359 songs
y = x+177 = 359+177 = 536 songs

∴ Songs downloaded by Anna = 359 songs
Songs downloaded by Ryelin = 536 songs

Solve the equation using square roots. 3x2 – 27 = 0

Answers

Hi there!
The answers are x = 3 and x = -3.

[tex]3 {x}^{2} - 27 = 0[/tex]
Add 27.

[tex]3 {x}^{2} = 27[/tex]
Divide by 3.

[tex] {x}^{2} = 9[/tex]
Take the root and the negative root.

[tex]x = \sqrt{9} = 3 \: \: or \: \: x = - \sqrt{9} = - 3[/tex]
Therefore, the answers are x = 3 and x = -3.

~ Hope this helps you!

The value of X are x = 3 and x = -3. using square root.

What is square root?

A square root can be regarded as a factor of a number in the sense that when that number is multiplied by itself, it gives the original number.

3x²– 27 = 0

⇒3x²= 27

⇒x²= 27/3

⇒x² = 9

⇒x = sqrt(9)

⇒ x =±3

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solve the equation
3x-3= -18

Answers

Alright! So the first step to solving 3x-3=-18 is isolating the variable. In other words, you want to make sure x is all by itself on one side of the equal sign.

3x-3=-18
+3 +3 Remember: What you do to one side, you have to do to the other.
3x = -15

Now divide by the coefficient (the number in front of x).

(3x)/3 = (-15)/3
x = -5

The solution of the equation 3x-3= -18 is -5.

The algebraic expressions which are separated by an equal symbol in between them and with the same value is called is an equation

Example = 5x + 5 = 12

here, x is a variable and 5 and 12 are constants.

Given equation;

3x-3= -18

To find the value of x add 3 to both side, we get

3x = -18 +3

we get

3x = -15

divide both side by 3 we get

[tex]x = \dfrac{-15}{3}[/tex]

Convert in into the lowest form we get,

x = -5

The solution of the equation 3x-3= -18 is -5

Learn more about equations here :

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The volume of a right triangular prism is 72 cubic feet. The height of the prism is 9 feet. The triangular base is an isosceles right triangle.

Answers

Answer:

Step-by-step explanation:

What is the area of the triangular base? 8 square feet

What is the length of edge DF? 4 feet

Answer:

What is the area of the triangular base?

8 square feet

What is the length of edge DF?

4 feet

Step-by-step explanation:

just did the quiz on EDG

Seven of the 10 children at art camp make an average of 8 paintings. The remaining children make an average of 12 paintings. What is the average number of paintings made by children at the art camp? Enter your answer in the box.

Answers

The 7 out of ten adds up to 56 the last 3 add up to 36 which equals 92 divided by ten is 9.2 average....

Haley sings for $1,000 an hour. Her rate increases by 50% after midnight. If she sings one
night from 8:30 pm until 1:00 am, how much should she be paid?
a) $4500 b) $5000 c) $5500 d) $6000

Answers

The Answer is B) 5000$

A 3 inch wide border is wrapped around a rectangular prism. the length of the rectangular prism is 8 inches longer than its width. the surface area covered by the border is 383 square inches. what is the width of the rectangular prism? answer in units of inches.

Answers

It might be 4 but I could be 1 actually it 100,334

The lateral area of a cone is 555 \pi cm^2 and the radius is 15.1 what is the slant height?

Answers

we know that
[LA]=pi*r*l
where
LA is the lateral area of the cone
r is the radius
l is the slant height
l=LA/(pi*r)
r=15.1 cm
LA=555*pi cm²
l=(555*pi)/(pi*15.1)----> l=36.75 cm

the answer is
the slant height is 36.75 cm

What value of c makes the trinomial below a perfect square x2 + 7x + c?

Answers

we have that
x² + 7x + c
Group terms that contain the same variable
(x² + 7x )+ c
Complete the square. Remember to balance the equation
(x² + 7x+3.5² )+ c-3.5²

Rewrite as perfect squares

(x+3.5)²+ c-3.5²
so
c-3.5² must be zero
c-3.5²=0------- c=3.5²------> c=12.25

the answer is
the value of c must be 12.25

Answer:49/4

Step-by-step explanation:

Find the diameter of a circle whose equation is x2+(y−2)2=100x2+(y−2)2=100.

400

20

10

100

Answers

In this question r^2 = 100

Take the square root of 100
sqrt(r^2) = sqrt(100)
r = 10

But you want the diameter.
d = 2 * r
d = 20

B answer.

Help me please & thank ya

Answers

Answer is C: Step 3, because a number has been added only to one side of the equation.

Hope this helps.

How do you complete the square of x^2-14x+33=0?

Answers

x² - 14x + 33 = 0 is in the form ax² + bx + c = 0. We will need this for the second step.

Subtract 33 from both sides
x² - 14x = - 33

Divide the b term by 2 and then square the result. Then add that to both sides.
- 14 / 2 is - 7. (- 7)² = 49. Add that to both sides

x² - 14x + 49 = - 33 + 49

Combine the constants and factor the trinomial
(x - 7)² = 16

Square root both sides
x - 7 = +/- 4
or
x - 7 = - 4 and x - 7 = 4

You have to place a plus-minus statement because (- 4)² and 4² both equal 16.

Now we solve for x in each equation. Add 7 to both sides to isolate our variable.
x = 3 and x = 11

Final answer:

To complete the square for the equation x^2-14x+33=0, the constant 33 is moved to the other side, and the number needed to make the left side a perfect square trinomial, 49, is added to both sides, resulting in factoring and solving (x - 7)^2 = 16 to find x = 11 and x = 3.

Explanation:

To complete the square for the equation x^2-14x+33=0, you need to form a perfect square trinomial on the left side of the equation. First, you'll move the constant term to the right side:

x^2 - 14x = -33

Next, find the value that completes the square for the x-terms. This value is obtained by taking half of the coefficient of x (which is -14 in this case) and squaring it, giving us (-7)^2 = 49.

Add 49 to both sides of the equation:

x^2 - 14x + 49 = -33 + 49

x^2 - 14x + 49 = 16

Now, the left side of the equation is a perfect square trinomial, and can be factored into:

(x - 7)^2 = 16

To solve for x, take the square root of both sides:

x - 7 = [tex]\sqrt{16}[/tex]

x - 7 = +- 4

Finally, solve for x by adding 7 to both sides:

x = 7 +- 4

x = 11 or x = 3

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To prepare for the party, the host made a large batch of punch. The recipe makes 8 gallons of punch. How many cups of punch can be served from this batch? A. 24B. 128C. 64 In economics, the power of the consumer to control what is produced is called A.consumer sovereignty. B.consumer power. C.consumer wealth. D.consumer cost. Please help me with 8, 9, and 10 thanks! Show work tooRANDOM ANSWERS WILL BE MODERATED! Which best identifies the climax in The Strangers That Came To Town?A. The Duvitches are accepted on Syringa StreetB. The boys replace Mr. Duvitches fish.C. The two brothers put soap in the Duvitches' bucket of fish.D. The Duvitch family moves to Syringa StreetPLEASE! STOP BEING LASY AND HELP! ASAP! How would I find the diameter? Book thief why does liesel scavenge from garbage pails on the days she goes on her laundry route The lengths of infants at birth in a certain hospital are normally distributed with a mean of 18 inches and a standard deviation of 2.2 inches. find the probability that an infant selected at random from this hospital measures between 16 and 21 inches. Which period in european history is most closely associated with leonardo da vinci, michelangelo, william shakespeare, and nicolaus copernicus? Why did the U.S lose the vietnam war Name the point with the given coordinates (4 -2) graph[tex]y = |x| - 1[/tex] An increasing number of states have adopted a federal form of government primarily to select one:a. grant different ethnicities or nationalities more effective representation.b. encourage the breakup of the superpower alliances.c. govern compact states more effectively.d. deploy scarce resources efficiently.e. meet all of these needs. ________ was an historical epoch during which victims had well-recognized rights, including a personal say in imposing punishments on apprehended offenders. The renaissance was a time when people began to value themselves as individuals True?False? A uniform magnetic field points upward, parallel to the page, and has a magnitude of 7.85 mt. a negatively charged particle (q=3.32 c, m=2.05 pg) moves through this field with a speed of 67.3 km/s perpendicular to the magnetic field, as shown. the magnetic force on this particle is a centripetal force and causes the particle to move in a circular path. what is the radius of the particle's circular path? A plane left Chicago at 8 A.M. At 12 P.M., the plane landed in Los Angeles, which is 1,700 miles away.If the plane travels at a constant rate, how many miles did it travel per hour? In the box, olympism and the olympic games, the author endorses the elimination of national medal counts because such counts tend to Orlando wants to become a Certified Public Accountant. Which career cluster is he interested in? what is the slope of the line The source of all magnetism is. A. tiny pieces of iron. B. tiny domains of aligned atoms. C. Ferromagnetic materials. D. moving electric charge. E. None above