Questions on Geometry: Bodies in space, right solid, cylinder, sphere answered by real tutors!

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Question 558852: A farmer's silo is the shape of a cylinder with a hemisphere as the roof. If the radius of the hemisphere is 10 feet and the height of the silo is h feet, express the volume of the silo as a function of h.
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Question 565022: In a rectangular solid, how many times greater is the volume if you double the length?
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Question 566035: ok i have ABSOLUTLEY NO CLUE WHAT TO DO I AM SOOO LOST ! PLEASE SOMEONE HELPME!!
Find the radius of the right cylinder shown, in which the height of the cylinder is equal to the diameter.
ok, soo what i did is find the surface area.
S=2*pi*radius^2+28pi*raduis
so i plugged in the numbers
150pi=2pir^2+2pir(2r)
after that i dont know what todo.. HONESTLEY i dont even think i did it right...
Click here to see answer by mananth(16946)

Question 566766: The textbook says:
In the drawing, P, which is a vertex of the rectangular prism, has coordinates (2,3,4) on the coordinate plane. Point Q, which is also a vertex, is located at the origin.Find the remaining six coordinates of the rectangular prism.
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Question 572059: the radius of base of a right circular cylinder is increased by 25% and its height is decreased by 10%.Find the percentage increase of volume
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Question 593925: True of False:
All lines intersecting a sphere are tangent to the sphere.
Every plane that intersects a sphere creates a great circle.
The eastern hemisphere of Earth is congruent to the western hemisphere of Earth.
The diameter of a sphere is congruent to the diameter of its great circle.
PLEASE!!! And THANK YOU!
Click here to see answer by jim_thompson5910(35256)

Question 601881: Hello, I have this question on a past paper for my exams which I am struggling with;
"A gourmet chef is renowned for her spherical shaped souffle. Once it's put in the oven, its volume increases at a rate proportional to its radius.
Show that the radius r cm of the souffle, at time t minutes after it has been put in the over, satisfies the differential equation where k is constant."
Thank you :)
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Question 603649: Find the surface areas of a sphere with a diameter of 12in
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Question 604731: If the surface area of a cylinder was 1202(pi), and the radius was 7.5, find the height.
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Question 606734: The diameter of a ball weighing 32 lbs is 6 inches. What is the diameter of a ball weighing 4 lbs?
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Question 606417: A cubic decimeter of water is called a liter of water. how many liters of water would fit in a cylinder that is 4 meters in diameter, and is 10 meters high?
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Question 606418: A cubic decimeter of water is called a liter of water. how many liters of water would fit in a cylinder that is 4 meters in diameter, and is 10 meters high?
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Question 607116: How can i work out cylinder if the height is 9 cm and the width is 7 cm?.
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Question 607116: How can i work out cylinder if the height is 9 cm and the width is 7 cm?.
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Question 608173: what is the volume of a pyramid to the nearest cubic centimeter if the base of the pyramid is a regular hexagon with a side length of 18 cm?
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Question 608995: if the lateral area of a right circular cylinder is 90 centimeter squared and its volume is 255 cubic centimeter.find its radius.please solve.
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Question 608988: the perimeter of a right section of a prism is 30 cm and the lateral area is 360 centimeter squared.what is the lenght of the lateral edge?
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Question 609000: what must be the dimensions of a steel cylinder in feet if it is to contain 2,020 gallons of water (7.48 gal=1 cubic feet) and it is required to have a height that is equal to its diameter.
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Question 609001: what dimensions of a tin can volume 54(pi) cubic centimeter should be produced if it is required that is height be equal to the diameter of its base.please solve.
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Question 609011: the inside diameter of a garden hose is 3/4 inch.what lenght of hose can be filled with a gallon of water?please solve.show solutions or steps.
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Question 609007: a metal washer 1 inch in diameter is pierced by a 1/2 inch hole.what is the volume of the washer if it is 1/8 inch thick?please solve,show solution or steps.
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Question 609005: how many square feet of aluminum materials will be needed in order to construct an open top right cylindrical tank which is 6 feet high and has a diameter of 2 feet,if only 5% of the total surface of the cylinder is to be allowed for waste?.please help.please give solution or steps.
Click here to see answer by ankor@dixie-net.com(22740)

Question 608997: a cylindrical log of radius 60 cm and 800 cm long is to be cut to form a wood with square cross section.find the largest volume of the wood that can be obtained.express the volume in cubic meters.please solve to help.
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Question 610699: find the volume of the largest cylinder with a circular base that can be inscribed in a cube which has a volume of 27m^3.

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Question 610699: find the volume of the largest cylinder with a circular base that can be inscribed in a cube which has a volume of 27m^3.

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Question 612818: A cylindrical container has base radius of 14cm and height 18cm.how many litres can it hold
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Question 615254: a person who weighs 200 pounds on earth would weigh about 32 pounds on the moon. Find the weight of a person on earth who would weigh 15 pounds on the moon
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Question 619035: if a cylindrical jug is 20cm in height and has a capacity of one litre . . . what is its diameter??
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Question 619819: What is the volume of a cylinder
radius = 3cm and
height = 7cm, using pi = 3.1?
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Question 619901: please help me solve this story problem. a silo is divided into three sections. The top section is one-fifth the length of the bottom section. The middles section is one-third the length of the bottom section. The total height of the silo is 460 ft. Find the length of the top section. Thank you in advance have been trying to formulate an equation for over an hour but am stuck.
Click here to see answer by MathTherapy(10551)

Question 621070: a cube of side 3cm contains a sphere withn it.if the sphere touches each face of the cube,find the volume of the space between the cube and the sphere.

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Question 626141: a toy boat has a scale of 1:40 to an actual boat. If the mast on the toy boat weighs 216 Grams, how many metric tons does the actual boat's mast weigh?
I converted the 216 grams to 0.000216 ton and used the following equation:
1:40 = 0.000216:x to get an answer of .00864 metric tons.
This does not look right. Please help
Click here to see answer by Alan3354(69443)

Question 626129: Two spheres of the same density have a ratio of 4 to 9 in surface area. If the small sphere weighs 10 lb. what does the sphere weigh?
Thanks
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Question 630064: Two cylindrical water tanks have the same dimensions. One is filled to a height of 4 ft while the other is filled to a height of 8 ft. What is the ratio of the amount of water in the two tanks?
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Question 633881: What is the longest piece of straight dry spaghetti that will fit in a cylindrical can that has a radius of 3 inches and height of 10 inches?
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Question 635727: the radius of a ball is 19 centimeters. what is its volume
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Question 637373: A right circular cylinder has height 6 and volume 54pie . What is the circumference of its base?
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Question 637373: A right circular cylinder has height 6 and volume 54pie . What is the circumference of its base?
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Question 637320: summary of the chapter - representing solids on paper

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Question 638170: P+2P=-15
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Question 638170: P+2P=-15
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Question 650148: I need help with a Precalculus problem:
The weight, W, of an object varies inversely as the square of the distance, d, from the center of the earth. At sea level (3978 mi from the center of the earth), an astronaut weighs 220 lb. Find their weight when they are orbiting 400 mi above sea level.
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