Tutors Answer Your Questions about Surface-area (FREE)
Question 43574: The kitchen floor of your home is 12'6" in width and 10'4" in length. You are going to place 5" tiles on the floor. Each tile is 5" on each side.
1.Express the area of the kitchen floor, in square feet, as an improper fraction.
2.Express the area of each tile in square feet.
3.How many tiles are required to tile the floor?
Click here to see answer by Nate(3500)  |
Question 43562: I have the distance around an irregular shape lawn and would like to know a formula for figuring how many sq. feet is in the lawn. I used a measuring wheel the total ft. around the lawn is 2357. thank you
Click here to see answer by Nate(3500) |
Question 44480: The surface area A of a right circular cylinder is A=2Pi times the radius square + 2Pi times the radius times the height and "h" is the height. Find the radius of a right circular cylinder whose surface area is 96.3Pi square inches and whose height is 11.7 inches.
Click here to see answer by stanbon(75887) |
Question 44503: I have two questions.
1 Flor is putting a fence around a field. The fiels is rectangular and measures 7.52 yards long & 18.89 yards wide How much fence does she need?
2. I have a figure I am not sure what it is called but it is sort of a slanted rectangle if that makes sense and the length is 8 ft and the height is 5 ft what is the area?
Any tips on how to show my work for long division on the computer ?
Click here to see answer by stanbon(75887) |
Question 44605: Question
A closed box is 135 cm long, 80 cm and 60 cm deep internally. It is to be lined on its sides and bottom with cedar veneer of negligible (what is it and what does it mean ?) Find, in square metres, the area of veneer needed.
All I know and understand from this question is :-
Volume = l x w x h = 135 x 80 x 60 = 648000
So what I supposed to do next ? Please help. Thank you.
Click here to see answer by Earlsdon(6294) |
Question 44739: My Question
A swimming pool is 50 m long ad 25 m wide. It is 1 m deep at the shallow end and 8 m deep at the other end. Find the volume of water in the pool when it is full as well as the total area of the pool when it is contact with water (refer to the figure below).
Please help to solve this question. Thank you.
Click here to see answer by adamchapman(301) |
Question 44834: This is not making sense to me, can someone help me?
Geometry: If the sides of a square are decreased by 2cm, the area is decreased by 36cm^2. What were the dimensions of the original square?
Click here to see answer by Paul(988) |
Question 47531: I need help in figuring out how to solve this problem. It is very confusing to me. I'd like to know how to work it out.
Find the area of a regular octagon with side length 5cm and apothem 6cm.
Find the volume of a square pyramid with height 12cm and slant height 15cm.
Please help!
Click here to see answer by stanbon(75887) |
Question 50217: The volume of the box is represented by (x^2+5x+6)(x+5). Find the polynomial that represents the area of the bottom of the box. The problem shows a box with (x+2) beside it.
Should I start with: (x^2+5x+6)(x+5)/x+2 ?
Not sure on this one!
Click here to see answer by stanbon(75887) |
Question 50524: Bob and Wendy live in a house in which the floor of every room is a square and covered with identical square tiles. Wendy's room contains 101 tiles more than Bob's room. How many tiles does Wendy's room contain?
Click here to see answer by AnlytcPhil(1806)  |
Question 50803: 1. Rubber bungs are made by removing the tops of cones. Starting with a cone of radius 10cm and height 16cm, a rubber bungs made by cutting a cone of radius 5 cm and height 8cm from the top. Find the volume and total surface area of the rubber bung.
2. A metal cylinder is melted down and made into spherical balls for a game. The cylinder is 15cm high and has radius 6cm. The balls each have radius 1cm. How many balls can be made?
Click here to see answer by AnlytcPhil(1806) |
Question 53268: I am very bad at understanding dimensions. Will someone help shed some light?
"The length of a rectangle is 2 cm more than twice it's width. If the perimeter of the rectangle is 52 cm, find the dimensions of the rectangle."
Thanks!
Click here to see answer by funmath(2933) |
Question 53409: Good evening, i would like to ask you this three problems, i am not sure that i work out the answers. Please, help in those
1) A solid cube of side 6 is first painted pink and then cut into smaller cubes of side 2. How many of the smaller cubes have paint on exactly 2 sides?
2) A regular hexagon is inscribed in a circle o radius R cms. What is the perimeter of the regular hexagon?
3) A 4cm cube is cut into 1cm cubes. What is the percentage increase in the surface area after such cutting?
From yours poor students
babynarah and modi
Click here to see answer by stanbon(75887) |
Question 54380: I hope this is the right topic! I am not sure where to start with this....
The volume of the box is represented by (x^2+5x+6)(x+5). Find the polynomial that represents the area of the bottom of the box.
Thank you in advance!
ac
Click here to see answer by Nate(3500) |
Question 54765: Given a right circular cone leaking water (original dimensions of r=6m h=8m
1. Rewrite the formula for V in terms of the radius only.
2. Rewrite the formula for V in terms of height only.
3. If the volume is decreasing at a rate of 81/32 (pie) m^3/min. how fast is the height dropping when h=3m?
Please help...i've search so many places for help. Lillian
Click here to see answer by venugopalramana(3286) |
Question 55530: Which of the following statements is not true of deductive reasoning?
a. Deductive reasoning was developed by Greek mathematicians.
b. Deductive reasoning is the process of using logical steps to reach an unavoidable conclusion based on a given set of facts.
c. Deductive reasoning must always reach a true conclusion even if an error is made in the logical steps or a given fact was false.
d. Deductive reasoning complements inductive reasoning by allowing us to prove what inductive reasoning suggests might be true.
==. A student is confused by the difference between continuous and discrete. Which of the following is the least correct response for you to give?
a. Things which are continuous can be split into smaller measurable pieces over and over again. Splitting something which is discreet into smaller pieces changes the type of thing you are measuring.
b. Discrete objects can be counted (one penny, two pennies, etc.), while some aspect of a continuous object (its weight, height, age, etc.) is measured.
c. Discrete objects are all identical (a batch of pennies), where as continuous objects can be different.
d. Things which are discrete can be counted exactly; things which are continuous can only be measured approximately.
--. The best approximation for the sum of 3 yd 2 ft 7 in and 1 yd 9 in in miles is:
a. 2.9 miles
b. 0.29 miles
c. 0.0029 miles
d. 0.000029 miles
Click here to see answer by stanbon(75887) |
Question 55526: . John is preparing to carpet his new house. All of the rooms will use the same carpet except for his daughter’s playroom. He measures the length of the playroom to be 15ft 6.5 in, and the width to be 10ft 3.2 in. Taking into account the level of precision at which John measured, between which two values is the area of the playroom floor?
a. 159.024 sq ft to 160.099 sq ft
b. 158.875 sq ft to 161.028 sq ft
c. 159.454 sq ft to 159.699 sq ft
d. 159 sq ft to 160 sq ft
Click here to see answer by Genius(17) |
Question 55668: Q: a man wants a garden fence. He has one 40' piece and 48 one foot pieces. He cannot cut any nor can he buy any more supplies. How big is the garden and what shape is best?
I have tried the semi circle , but I don't know how to figure the area correctly.I used the 40' piece as the diameter with the 48 one foot pieces in the arc. (formula= 40/2=20; A= pi 20 squared)
I have the standard rectangle with the 40' piece on one side and 40 one foot pieces on the opposite side and two four foot widths.( formula = A= L*W)
I have the 1/2 rectangle(triangle) with the two 40' lenghths and one 8 foot width.( formula = A= 1/2 (L*W) )
and I have a trapeziod with the longest side being the 40' piece and the sorter lenghth being 12 one foot pieces. the rest of the one foot pieces angle between them, 18 pieces per side.(Formula = ?)
Can you help me figure out which of my solutions is the biggest area? I think I have the right formulas but I am unsure if I used them correctly.
Click here to see answer by Edwin McCravy(20055)  |
Question 55678: 3. The function f(x)= (x^2+2x)^2/3: (USE CALCULUS to answer a-e)
>
> a. Increasing on what interval(s)
> b. Decreasing on what interval(s)
> c. Has critical numbers?
> d. Has Relative Maximum?
> e. Has Relative Minimum?
Click here to see answer by stanbon(75887) |
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