Tutors Answer Your Questions about Surface-area (FREE)
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(57977)  |
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(8999)  |
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(57977) |
Question 56060: 1. A person dives from a 30 foot platform with an initial velocity of
> 5 feet per second (upward)
>
> a. Find the position of the function
> b. How long will it take for the diver to hit the water?
> c. What is the diver's velocity at impact?
> d. What is the diver's acceleration at impact?
Click here to see answer by jenrobrody(19) |
Question 56270: I'm honestly not sure which category this question falls under, but here it is
To determine the distance to an oil platform in the Pacific Ocean from both ends of a beach, a surveyor measures the angle to the platform from each end of the beach. The angle made with the shoreline from one end of the beach is 83 degrees, from the other end 78.6 degrees. If the beach is 950 yards long, what are the distances to the oil platform from both ends of the beach?
Click here to see answer by ankor@dixie-net.com(15746)  |
Question 62559: for homework there is a challenge question that says:
This net will fold into a triangular pyramid. Find the surface area of the pyramid, and estimate its volume.
The height of the pyramid is 5.2cm and the length is 6cm
I got this from the Math Impact Textbook, course 2(purple book)
Click here to see answer by venugopalramana(3286) |
Question 65376: The voloume 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.
I guess I can not seem to figure out where to start on this type of problem. I can see some of the equations but from there how do I figure out only one piece of the box?
Click here to see answer by stanbon(57977) |
Question 71297: Please help
From a square piece of cardboard with width x inches, a square of width x-3 inches is removed from the center. Write the area of the remaining piece as a function of x.
Please provide how this problem was answered so I can learn to do this.
Thank you
Click here to see answer by checkley75(3666) |
Question 72873: How do you find the area of an irregular region? I know that the formula is A=(I+1/2B) x U...but that is basically it. In each question, we are given some kind of wavy shape with a grid on top of it, and the lenght of a side of one square of the grid is given.
Click here to see answer by jim_thompson5910(28717) |
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