# How to figure out the temperature of a lake using x for the feet or the Depth and for the degrees Celsius use (3900x+1000)/(3x^2+100) with the answer of the degrees celsius being 8.44 looking like 8.44=(3900x+1000)/(3x^2+100) i need the depth

34,877 questions, page 22
1. ## math

you are desighning a poster that would be 3yd wide and 8 feet high. how much paper do you need in square feet. please explain

asked by leslie on September 6, 2011
2. ## math

A stone is dropped from a cliff 344 feet high. after how many seconds will it be 200 feet above the ground?

asked by luis on April 11, 2014
3. ## Geometry

The area of a rectangular space is 128 square feet. What are the possible pairs of whole number dimensions in feet?

asked by George on March 25, 2015
4. ## Math

A playground has the shape of a parallelogram. If the base is 30 feet, and tyrese corresponding height ishhhh 25 feet, what is its area?

asked by Milli on February 23, 2012
5. ## maths

how much will it cost to fence in a field that 24 feet long and 84 feet wide, if we spend rs100 per a yard?

asked by stany on June 16, 2016
6. ## math

There are 3 feet per yard. Do the division and what do you get? ?? Find the equivalent measure. 45 feet=___________yards show work 15

asked by Writeacher on March 27, 2007
7. ## Math

A man 6 feet tall is standing 4 feet away from a 20 foot lamppost. How long is the lampposts shadow?

asked by Nate on April 27, 2016
8. ## GED-Word Problems

How many cubic feet of gravel will be needed to fill a circular area 14 feet across and 3 inches deep?

asked by kayla on May 13, 2012
9. ## geometry

A rectangle has a perimeter of 98 feet. The lenght is 8 feet longer than double the width. Find each Dimension.

asked by Angie on April 22, 2008
10. ## geometry

radius of 3960 miles cause there 5280 feet find length in feet by circumference of earth use ~3.14

asked by tie on September 20, 2010
11. ## Math

a rectanglar prism has a volume of 48 cubic feet and a surface area of ** square feet. What are its dimensions?

asked by Mally on November 30, 2010
12. ## Math

How high will a baseball that is thrown up into the air at 48 feet per second go if it starts its flight at a height 10 feet above the ground?

asked by Bob on October 26, 2011
13. ## geomantry

a carpentar is making a fence out of 1 foot sections. two sides must be 30 feet and 17 feet which could not be the length of the third side 1)13 2)17 3)30 4)46

asked by Anonymous on February 4, 2011
14. ## math

A rectangular playground is 48 feet long and 21 feet wide. what is the distance in yards around the play ground?

asked by antwon cherry on May 21, 2012
15. ## Calculus

If the position function in feet for a free-falling particle on Planet X is s(t)= -8t^2 +16 + 64, what is the velocity of the after 2 seconds in feet per second? A. -32 B. -16 C. 16 D. 64

asked by hhhhh on January 12, 2017
16. ## algerbra

an object is projected upward at a rate of 96 feet per second. find the time when it is 144 feet above the ground

asked by sam on December 15, 2016
17. ## geometry

the base of a triangular sail is x feet and its height is 1/2x+7 feet.which expression represents the sails area?

asked by teana on August 9, 2011
18. ## math

The length of a rectangular garden exceeds the width by 8 feet. If the perimeter of the rectangle is 28 feet, what are its dimensions?

asked by tonya on February 5, 2016
19. ## math

The exterior surface of a cylinder with a circumference of 2 feet and a length of 5 feet (and no end caps) is the same as the area of

asked by pedro on September 20, 2015
20. ## math

How many cubic yards of concrete will it take to fill a cylindrical column that is 24 feet high and whose diameter is 2 feet

asked by Mike on November 15, 2011
21. ## Math

A yard measures a x b feet the swingset space is a x c feet how much lawn is left after swing set

asked by Lisa on October 1, 2013
22. ## math

If a a sheet of cardboard measures 9 feet by 6 feet and is made into a perfect cube, what would the length of each edge be?

asked by Dan on May 9, 2011
23. ## Algebra

How many 12-inch square tiles are needed to completely cover the floor of a greenhouse that is 25 feet by 40 feet ?

asked by Carolyn on January 26, 2015
24. ## math

If a a sheet of cardboard measures 9 feet by 6 feet and is made into a perfect cube, what would the length of each edge be?

asked by Dan on May 9, 2011
25. ## physics

What is the pressure due to a man weighing 80 kg standing on his feet? given area of his feet is 160sq.cm take g=10m/s^2

asked by Vidhya on June 8, 2014
26. ## math

A 120-foot long rope is cut into 3 pieces. the first rope is twice as long as the second piece of rope. the third piece of rope is three times aS LONG AS THE SECOND PIECE OF ROPE. WHAT IS THE LENGTH OF THE LONGEST PIECE OF ROPE? a 20 feet b 40 feet c 60

asked by eva on April 7, 2010
27. ## Pre-Algebra

I need help with scales, please! Q: You are making a scale drawing of a room using a scale of 1-inch:4-feet. a) The room is 14 feet by 18 feet. Find its dimensions in the drawing. b) A sofa in the room has a lenght of 6 feet. Find the length of the sofa in

asked by Erin on February 16, 2011
28. ## Algebra

Farmer Brown is making a garden 14.5 feet long and 8.75 feet wide. He puts up a fence 23.5 feet long and 17.75 feet wide. What is the distance from the fence to the edge of the garden? (The fence is the same distance from all sides of the garden)

asked by bill on November 22, 2017
29. ## Math

Farmer Brown is making a garden 14.5 feet long and 8.75 feet wide. He puts up a fence 23.5 feet long and 17.75 feet wide. What is the distance from the fence to the edge of the garden? (The fence is the same distance from all sides of the garden)

asked by Samay on November 27, 2017
30. ## Math

A rectangular prism has a width of 92 ft and a volume of 240 ft^3. Find the volume of a similar prism with a width of 23 ft. Round to the nearest tenth, it necessary. I know the answer is 3.8 feet because I got it wrong. But why is that the answer. If you

asked by Anonymous on February 19, 2015
31. ## Math

Okay, so for the following question I was able to answer half of the parts. I can't figure out how to do B & D.. Newborn blue whales are approximately 24 feet long and weigh 3 tons. Young whales are nursed for 7 months, and by the time of weaning they

asked by AR. on January 20, 2014
32. ## Physics

Please try to be clear in your explanation!! A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with a velocity of 5.00 m/s, and her takeoff point is 1.50 m above the pool. (a) How long are her feet in the air?

asked by Lindsey on November 14, 2011
33. ## Science!

An oven is a technological system. Which of the following describes an input into this system? A. Setting the temperature B. Burning gas releases heat. C. A thermostat monitors the temperature and increases the gas flow when the temperature falls too low.

asked by Daisy on September 9, 2014
34. ## chemistry

5oocm3 of 1.0 mol dm3 of sodium hydroxide solution at room temperature was placed in a styrofoam cup and 25cm3 of 2.0 mol-dm3 of hydrochloric acid was added at the same temperature.The temperature rose by 15.2 degrees celsius. Calculate the heat of

asked by marie haynes on March 8, 2015
35. ## Math 7 - Homework Question Check

12. Is the figure below a right triangle? On the lines below, explain how you determined your answer. Answer - The figure below is not a right triangle. The reason why it's not a right triangle is because this figure is a acute angle. Acute angle is less

asked by Laruen on April 16, 2012
36. ## Human and Social Biology

A calorimeter was used to oxidise completely 2g of a food sample,causing a temperature rise of 5degrees C in 100cm3 of water(this figure includes the water equivalent of the apparatus). How much energy was present in the food sample(in joule per g)?

asked by Nikita on January 8, 2012

Ellie and Heather drew floor models of their living rooms. Ellie's model represented 20 feet by 15 feet. Heather's model represented 18 feet by 18 feet. Whose floor model represents the greater area? How much greater?

asked by Anthony on April 11, 2016
38. ## math word problem

Read the following story about the TV weatherperson and identify as many places as possible that the weatherperson could use addition or subtraction of integers to answer her questions. Write and solve the number sentences she could use. Ms. Cloudcover,

asked by Anonymous on June 30, 2009
39. ## chemistry

Data collected from the calorimetry of a metal mass of the metal = 110.62g initial temperature of the water in the cup = 23.0 C initial temperature of the metal in the boiling water = 99.02 C final temperature of the metal AND water in the cup=25.54C

asked by coco on June 5, 2010
40. ## physics

For the purposes of this problem, there are three parts to the figure, and the center of mass of each one is shown in the drawing. These parts are: (1) the torso, neck, and head (total mass = 40.4 kg) with a center of mass located on the y axis at a point

asked by Anonymous on March 27, 2014
41. ## Science

1. What is the relationship between elevation and average surface temperature? 2. What is the generalized relationship between latitude and average surface temperature..(I think it's that the higher the latitude, the colder the surface temperature)? 3.

asked by Katrina on January 22, 2009
42. ## science

A surveyor stands on one edge of a ravine. She determines that the ravine w is 140 feet wide. She then determines that the angle of depression from the edge where she is standing to a point on the bottom of the ravine a is 57.5°, as shown in figure below

asked by Mary-ann on December 13, 2010
43. ## Math

A cylinder has a radius of 2 feet and a height of 18 feet. Volume (to the nearest tenth) = a0 cubic feet i TRIED to work out this problem. The answer I got was 226.3 I used the cylinder volume formula which is π r2 h.! The computer says my answer is

asked by sarah on June 25, 2013

Kallisto built a rectangular sign that measured 2 3/4 feet in length by 1 1/2 feet in width. To find the area, multiply the length and width. what is the area of the sign in square feet? Write an equation to solve. 2 3/4 1 1/2 +2 3/4 1 1/2 =11/1/2 ------

asked by Beverly on March 5, 2015
45. ## algebra

A submarine kept a constant rate of ascent upon rising after a dive. After 5 minutes it was 360 feet below the surface of the water, and after 25 minutes it was 140 feet below. How long after starting its ascent was the submarine 250 feet below the

asked by e on June 16, 2013
46. ## Math

An airplane ascends 450 feet at a constant rate as it flies a horizontal distance of 1,000 feet. How much altitude will it gain as it flies a horizontal distance of 1 mile? (Hint: 5,280 feet = 1 mile.)

asked by Anonymous on December 5, 2018
47. ## algebra 2

Bonnie and Bruce have a rectangular swimming pool that is 6 feet wide and 10 feet long. They are going to build a tile border of uniform width around the pool. They have a 105 square feet of tile. How wide should the border be?

asked by David on July 8, 2015
48. ## ap cal

An elevated train on a track 20 feet above the ground crosses a street at a rate of 25 feet per second and at a 30 degree angle. Five seconds later a car crosses under the tracks going 40 feet per second. How fast are the train and the car separating 3

asked by shivani on October 25, 2016
49. ## Algebra

A temperature of 30 degrees F is equivalent to 271.89 degrees K, while a temperature of 94 degrees F is equivalent to 307.44 degrees K. Find the equation converting Kelvin temperature to Fahrenheit. What is the Fahrenheit temperature when it is 212 degrees

asked by Vilma on June 3, 2012
50. ## Chemistry

For my chemistry lab, I reacted Mg powder with HCl to create H2 gas. I measured the volume of H2 gas created by salt water displacement by reading off an inverted test tube. I measured 14.0 mL and calculated the percent yield (used PV=nRT to find

asked by Winnie on September 22, 2017
51. ## probability

A fishing magazine collected data and printed the following results: If there is rain then the probability of catching a fish at Lake Blue is 80%, but if it doesn't rain then the probability of catching a fish at Lake Blue is 17%. The forecast for today is

asked by dale on November 5, 2017
52. ## math

A robotic basketball player tosses a ball upward from a height of 7 feet, at an initial speed of 111 feet per second. The height of the ball is modeled by the equation: h=−16t2+111t+7, where h is the height above the ground in feet and t is the time

asked by Julia on February 4, 2014
53. ## math

a certain company makes inflatable swimming pools that come in four rectangular sizes.the length of each pool is twice the width and twice the depth.the pools are 1 foot ,2 feet,3 feet and 4 feet deep.what is the area of the surface of tge water of each

asked by bianca on April 11, 2011
54. ## Physics

I don't understand this at all! use the position equation s=-16t^2 +v0t+s0 to write a function that represents the situation. Find the average rate of change from t1 to t2. a) An object is thrown upward from a height of 6 feet at a velocity of 64 feet per

asked by Julia on October 19, 2015
55. ## Math

Hi these are the problems I attempted, can someone tell me If I did them correctly? Thanks in advance3 Jane has invited 126 people for a pizza party. If each pizza has 18 slices and she estimates that she needs 3 slices per person, then how many pizzas

asked by Tasha on March 20, 2010
56. ## math

nemo is swimming 47 feet below sea level . he ascends 16 feet in the water . what is nemos current position ?

asked by LESLIE on July 10, 2013
57. ## physics

a projectile is launched straight up with an initial velocity of 112 feet per second. how long would it take to reach 180 feet?

asked by Anonymous on November 27, 2011
58. ## math

For a given right triangle, side a = 400 feet andside b = 900 feet.What is the measure of angle A to the nearest degree

asked by Anonymous on June 14, 2012
59. ## Math

a mountain with a base 5977 feet below sea level rises 17365 feet. what is the elevation of its peak

asked by Monique on December 10, 2011
60. ## math

Vance wants to fence in a rectangular area for his dog. He wants the length of the rectangle to be at least 30 feet and the perimeter to be no more than 150 feet.

asked by Kayla on May 6, 2013
61. ## math

IF HOCKEYPUCK TOOK 0.8 SEC TO TRAVEL 89 FEET TO THE GOAL LINE,FIND THE AVERAGE SPEED OF THE PUCK IN FEET PER SECOND

asked by SAHIL on December 29, 2011
62. ## algebra 117

need help with this one the length of a rectangular banner is 4 feet longer than its width if the area is 77 squar feet find the dimensions

asked by BERNIE on August 3, 2012
63. ## college math

the little thrifty market has a parking lot with dimensions 125 feet by 210 feet. How many square yards is that?

asked by Lourane on May 30, 2012
64. ## Math

The volume of a rectangular aquarium is 900 gallons. the bottom is 4 feet by 6 feet. find the height of the tank

asked by Rick on June 18, 2012
65. ## math

A skateborder descends on a ramp from 172 feet to 67 feet in 15 seconds. What is the average change in height per sceond?

asked by Kai-Cin on October 28, 2013
66. ## math

not understanding this assignment, it ask, terrence skated 8 feet in 4 seconds at a constant rate, how fast did he skate in feet per second

asked by cain on January 25, 2012
67. ## Math

The Little Thrifty Market has a parking lot with dimensions 125 feet by 210 feet. How many square yards is that?

asked by Stephanie on July 12, 2012
68. ## Math

Jack is decorating for a party. He has 125 feet of paper streamers to use over 3 doorways. He will use the same amount for each door. How many feet will he use in each?

asked by Laura on September 27, 2011
69. ## Algebra

The length of a rectangular banner is 3 feet longer than its width. If the area is 70 square feet, find the dimensions.

asked by .... on October 20, 2012
70. ## Calculus

4. Find the volume of a pyramid of height 160 feet that has a square base of side 300 feet

asked by Maryam on June 5, 2013
71. ## college math

I if a Thrifty Market has a parking lot with dimension 125 feet by 210 feet. How many square yards is that?

asked by Kimberly on October 14, 2010
72. ## geometry honors

if the volume of the pyramid is 64 feet cubed and the height is 16 feet what is the area of the base measured in square inches?

asked by erin on February 9, 2011
73. ## Algebra

the length of a rectangular road sign is 3 feet more than 2 times its width. Find the dimensions if the perimeter is 30 feet

asked by Kara Dalby on February 4, 2015
74. ## Trig

A silo is 40 feet high and 16 feet across. find the angle of depression from the top edge to floor. How do you solve this?

asked by Jen on April 28, 2011
75. ## science

Now what happens if your feet hit a slippery spot on the ground? your feet slip and the (blank) cant exert as much force back on you.

asked by Anonymous on October 22, 2016
76. ## Trig

A silo is 40 feet high and 16 feet across. find the angle of depression from the top edge to floor. How do you solve this?

asked by Jen on April 28, 2011
77. ## Force

Lever is 15 feet long rock is 150 lbs folcrum is 12 feet from the rick how much force is exerted

asked by Anonymous on March 7, 2015
78. ## math

A cylindrical bale of hay has a height of five feet and a diameter of 5 feet what is the approximate volume to the nearest cube

asked by kghn on December 19, 2014
79. ## AlGEBRA

The perimeter of a square must be less than 160 feet. What is the maximum length of a side in feet? (Translate into inequality and solve)

asked by sweet pea on February 4, 2015
80. ## Math

If I post is put every 6 feet along the fence that is rectangular and nuts 42 feet long and 36 foot wide how many posts do I need

asked by Alexa on September 10, 2015
81. ## math

let’s say you have 4x feet of fencing, where x is any number. What, in terms of x, should the dimensions of the largest rectangular enclosure be, whose perimeter is 4x feet? What would the area be?

asked by Anonymous on November 16, 2010
82. ## can someone plz help me

A rectangular prism has a volume of 48 cubic feet and surface area of 88 square feet. what are its dimensions? plz help me

asked by yuku on February 24, 2010
83. ## surface area and volume

A rectangular prism has a volume of 48 cubic feet and surface area of 88 square feet. what are its dimensions? plz help me

asked by yuku on February 24, 2010
84. ## Ms. sue can u help me

A rectangular prism has a volume of 48 cubic feet and surface area of 88 square feet. what are its dimensions? plz help me

asked by yuku on February 24, 2010
85. ## Volume and surface area

A rectangular prism has a volume of 48 cubic feet and surface area of 88 square feet. what are its dimensions? plz help me

asked by yuku on February 24, 2010
86. ## Math

Michael is painting a wall that is 16 feet long and 4 feet high. One small can of paint will cover an area of 60 square feet. How many cans of paint will Michael need to paint the wall?

asked by Anonymous on February 9, 2012
87. ## Algebra

The illumination provided by a car’s headlight varies inversely as the square of the distance from the headlight. If a headlight produces 15 footcandles at a distance of 20 feet, what will be the illumination at 40 feet? At 100 feet?

asked by Elena on October 22, 2011
88. ## Math

A Woman has cat's and birds. When asked how many of each she has she answers... " I have between both cats and birds 400 feet and 232 eyes.(Cats have 4 feet and Birds have 2 feet) How Many Total? How many Birds? How many Cats? Please help me solve this.

asked by Michelle on September 21, 2011
89. ## algebra

A women has a ladder that is 13 feet long.if she sets the base of the ladder on level ground 5 feet from the side of a house,how many feet above the ground will the top of the ladder be when it rests against the house?

asked by kirandeep on May 14, 2013
90. ## Geometry

Enlarge 6 in x 10 in picture to 3 feet x 4 feet. What is the scale factor and how much of the space will be used?

asked by Oakley on April 1, 2017

What would be the scale factor if an airplane is 87 feet long; 2 inches = 15 feet

asked by randomchik on October 4, 2012
92. ## Math

Square is 20 feet wide and 21 feet long what is the disdence from one corner to the other

asked by James on May 15, 2016
93. ## geometry

What is the permineter and area of a rectangle that has a length of 8 feet and width of 3 feet.

asked by Mary on January 29, 2011
94. ## Math

Find the area of an air hockey table that is 8 1/4 feet by 4 3/8 feet.

asked by Anonymous on October 5, 2016
95. ## math

How do you find the area of a trapezoid with a height of 9 and 1/5 and two bases of 14 feet and 20 feet?

asked by Alexa on January 10, 2010
96. ## delhi private school

Find the area of a rectangular hockey table that is 8 1/4 feet by 4 3/8 feet.

asked by naina on May 5, 2017
97. ## Math

A train travels 75 feet in 1/13 second. At the same speed, how many feet will it travel in 5 1/2 seconds?

asked by Yoana on July 17, 2012
98. ## Math

a rectangular laboratory tray is 1/3 feet by 5/4 feet. Find the area

asked by Ashley on October 23, 2011
99. ## math

A rectangle has an area of 48 square feet and a length of 10 feet. What is its width?

asked by Rod on February 24, 2015
100. ## Math

Find the area of a retangle with a lentgh of 2 2/3 feet and a width of 1 1/2 feet.

asked by Amy on January 11, 2016