# 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 185
1. ## math

I have a question on a quiz, and I cant seem to figure it out I have to add 50,56,52,46,48,42,38 and that got me 332 then I have to divide it by 7 and get the mean, but then I get a remainder of 3 and I don't know what to do because I have to find that

asked by Overwhelmed on March 4, 2016
2. ## cheeeeemmmiiisstttrrryyyy

i am going crazy trying to figure this out. i just completed an experiment with heats of fusion and vaporization but for some reason i cant answer and explain this question would 20.0g of steam at 100 degree celsius be enough to melt 20.0g of ice at 0

asked by stazi on March 27, 2013
3. ## Biology

During aerobic respiration, electrons travel downhill in which of these sequences? food-Krebs cycle-ATP-NAD+ or Food-NADH-electron transport chain-oxygen If I could figure out what it ends with it would be easier to answer.

asked by Ayeisha on March 11, 2007
4. ## Physics

Three blocks are located on a horizontal frictionless table. They are connected by a massless cord, as shown in the figure, and pulled to the right. The masses of the three blocks are m1 = 8 kg, m2 = 33 kg, and m3 = 49 kg. The pulling force is equal to T3

asked by Emily on February 16, 2016
5. ## Physics

A string is wrapped around a pulley of radius .20m and momentum of inertia .40 kg•m^2. The string is pulled with a force of 28 N. what is the magnitude of the resulting angular acceleration? Can someone please go through the steps or at least guide me

asked by hayley on July 8, 2012
6. ## Word Problem

Can someone help me figure out the equation? I am not good at figuring this out. Investing her bonus. Donna invested her \$33,000 bonus and received a total of \$970 in interest after 1 year. If part of the money returned 4% & the remainder 2.25%, how much

asked by Shana on September 10, 2007
7. ## Math

My teacher gave me a box and told me to see how many I could fit in the class room without taking out the heater or the desk. Ive tried many different things but I just cant figure it out. I don't know the measurments or anything. How do I do It? The desk

asked by Alex on February 12, 2008
8. ## physics

locks A, B, C are placed in the adjacent figure and connected by ropes of neglible mass. Both A and B weigh w = 25.0 N each and the coefficient of kinetic friction between each block and the surface is 0.35. A) If Block C descends with constant velocity

asked by Anonymous on March 19, 2012
9. ## physics

Sound travels around 340 m/s in air. If a bat squeaks and hears the echo of its squeak return to it 6 seconds later, how far away is the insect which the bats squeak encountered? This question doesnt even make sense to me!! Does anyone have a formula that

asked by Hannah on January 25, 2012
10. ## physics

Sound travels around 340 m/s in air. If a bat squeaks and hears the echo of its squeak return to it 6 seconds later, how far away is the insect which the bats squeak encountered? This question doesnt even make sense to me!! Does anyone have a formula that

asked by Hannah on January 25, 2012
11. ## Physics

Four forces act on a hot-air balloon, shown from the side in the figure below. Find the magnitude and direction of the resultant force on the balloon if F1 = 5050 N, F2 = 1450 N, F3 = 950 N, and F4 = 4200 N. _______ N at ________ ° clockwise from F2

asked by Dakota on October 16, 2012
12. ## Physics

Four forces act on a hot-air balloon, shown from the side in the figure below. Find the magnitude and direction of the resultant force on the balloon if F1 = 5050 N, F2 = 1450 N, F3 = 950 N, and F4 = 4200 N. ______N at ______ ° clockwise from F2

asked by Dakota on October 14, 2012
13. ## phy

Two snowcats tow a housing unit to a new location at McMurdo Base, Antarctica, as shown in Figure 4-46. The sum of the forces A and B exerted on the unit by the horizontal cables is parallel to the line L, and FA = 4300 N. Determine FB and the magnitude of

asked by ami on September 12, 2010
14. ## College Algrebra

Cynthia Besch wants to buy a rug for a room that is 25 ft wide and 32 ft long. She wants to leave a uniform strip of floor around the rug. She can afford to buy 588 square feet of carpeting. What dimensions should the rugâ€‹ have?

asked by Anonymous on September 7, 2017
15. ## College Physics

A raft is made of wood with a density of 404 kg/m^3. It is 42 cm thick and its square area is 3.0x3.0 m^2. It is floating in seawater (density = 1025 kg/m^3). How many people of 68 kilogram can the raft hold before they start getting their feet wet?

asked by L on April 19, 2010
16. ## calculus

A container with square base, vertical sides, and open top is to be made from 2700 square feet of material. Find the dimensions (length × width × heigth) of the container with greatest volume.

asked by Mely on August 1, 2010
17. ## Math

A museum groundskeeper is creating a semicircular statuary garden with a diameter of 38 feet. There will be a fence around the garden. The fencing costs \$8.25 per linear foot. About how much will the fencing cost altogether? Round to the nearest hundredth.

asked by YOU NEED SOME MILK on January 21, 2019
18. ## Math

A farmer has 2,400 feet of fencing and wants to fence off a rectangular field that borders a straight river. He needs no fence along the river. Write the function that will produce the largest area if x is the short side of the rectangle.

asked by Gary on March 5, 2015
19. ## physics

In college softball, the distance from the pitcher's mound to the batter is 43 feet. If the ball leaves the bat at 105 mph, how much time elapses between the hit and the ball reaching the pitcher? I figured out how many ft there would be in a second, but

asked by Laura on September 18, 2015
20. ## Math

The floor areas of a living room on a house plan measures 3 1/2 inches by 4 5/8 inches. If the scale is 1/4 inch = 1 foot, find the length of the longest side of room in feet. How do I start this problem?

asked by Mike on February 13, 2008
21. ## Calculus

Some cowboys plan to build a rectangular corral in a canyon. They have 500 feet of fencing to use for three sides of the rectangle (the canyon wall is used for the 4th side). a) What is the maximum area that they can fence in? b) What are the dimensions of

asked by Athena on October 8, 2014
22. ## Algebra 2

Mrs. Burnett throws a ball innthe air with an initial velocity of 96 feet per second. The function f(t) = 96t - 16t^^2 represents the path of the ball. How high will the ball go? How long will it take the ball to reach the ground?

asked by Olivia on October 29, 2014
23. ## math

Suppose the height, h, in feet, of a trampolinist above the ground during one bounce is modelled by the quadratic function h(t) = -16t^2 + 42t + 3.75 . For what period of time is the trampolinist at least 22 ft above the ground? Round your answers to the

asked by Alex on January 26, 2015
24. ## College Algerbra

Cynthia Besch wants to buy a rig for a room that is 18 ft wide and 25 ft long. She wants to leave a uniform strip of floor around the rug. She can afford to buy 120 square feet of carpeting. What dimensions should the rug have?

asked by Britney on August 24, 2018
25. ## Math 20-1

Suppose the height, h, in feet, of a trampolinist above the ground during one bounce is modeled by the quadratic function h(t) = -16t^2 + 42t + 3.75 . For what period of time is the trampolinist at least 22 ft above the ground? Round your answers to the

asked by Alex on January 27, 2015
26. ## Physics-Please check my explanation so far

If I had the old-fashion camera that had a focal length of 35mm(0.035m) and I take a picture of a person 6 feet away, how far does the film need to be from the lens to record a clear image? I know that the equation is 1/f = 1/d(object) + 1/d(image) so

asked by Roberto on February 12, 2011
27. ## algebra--1 question

A ball is thrown into the air with an initial upward velocity of 45 ft/s. Its height (h) in feet after t seconds is given by the function h = –16t² + 45t + 6. After about how many seconds will the ball hit the ground? (1 point) 3 4 5 6 I get 2.9, so

asked by SkatingDJ on March 24, 2015
28. ## math

You can find the distance d an object falls in feet for time t in seconds using the formula d= 16t^2. Suppose a ball is dropped out of a window of a tall building. How far will the ball in 3 seconds? a 144 ft b 96 ft c 48 ft d 16 ft plz explain how to do

asked by Anonymous on March 20, 2009
29. ## math

Solve the problem. Round to the nearest tenth, if necessary. A rock falls from a tower that is 432 feet high. As it is falling, its height is given by the formula h = 432 - 16t2. How many seconds will it take for the rock to hit the ground (h=0)?

asked by marcus on March 21, 2009
30. ## geometry

You have 32 feet of fencing and want to determine the maximum area that can be enclosed with the fencing to make a flower garden. You do not want to deal with fractions or decimals, so you are limiting the dimensions to whole numbers. Also, the area is to

asked by Anonymous on November 3, 2011
31. ## Calculus

The function V=4pir^2 describes the volume of a right circular cylinder of heigh 4ft and radius r feet. Find the (instantaneous) rate of change of the volume with respect to the radius when r=6. Leave the answer in terms of pi.

asked by Anonymous on January 24, 2008
32. ## Math

A farmer has 36 feet of fence to build a pigpen. He is going to use one of the sides of his barn as a side to the rectangular enclosure. Determine a function A that represents the total area of the enclosed region. What is the maximum area that can be

asked by Kate on April 14, 2016
33. ## Math

At the peak of a roller coaster ride, a rider's sunglasses fly off his head. The height h (in feet) of the glasses, t seconds after he loses them, is given by h = -16t2 + 16t + 1152. After how many seconds will the glasses hit the ground?

asked by Mark on September 28, 2012
34. ## visual logics

I am trying to write a program to generate a diamond shape each line has odd number of circles. have created the left side of diamond but cant figure how to nest info to make it a complete diamond

asked by darrick on September 21, 2012
35. ## Math

How would you go about making 250ml of a 20X stock solution of NaCl to dilute later to a final concentration of 50mM? I know that the molecular weight of NaCl is 58.44 but I am not sure where to start. I need to figure out the amount of NaCl and water

asked by Anonymous on March 26, 2013
36. ## Geometry

I am to find "d" (the hypotenuse)in the simplest radical form of a right triangle. The two angles are 30 degrees on top and the on the bottom is 60 degrees. Of course the opposite side to the left of 60 is 90 degrees. My options are: A) 8sqrt3 B) 4 C)

asked by bart on June 16, 2010
37. ## chemistry

the chemical equation of nicotinic acid is C5H4NCOOH + NaOH --> C5H4NCOONa + H2O i need to calculate the intial molar concentration of this acid, based on the ratio in which the acid and base react. Please help i cant figure it out,

asked by lisa on January 14, 2013

How would you go about making 250ml of a 20X stock solution of NaCl to dilute later to a final concentration of 50mM? I know that the molecular weight of NaCl is 58.44 but I am not sure where to start. I need to figure out the amount of NaCl and water

asked by Anonymous on March 26, 2013
39. ## Physics

Block B in the figure below weighs 713 N. The coefficient of static friction between block and table is 0.20. Assume that the cord between B and the knot is horizontal. Find the maximum weight of block A for which the system will be stationary.

asked by Will on November 18, 2010
40. ## math

A ladybug crawls around the outside of a rectangle that measures 5.5 cm by 8.5 cm. The ladybug stays exactly 3.5 cm from the rectangle at all times to form a larger figure.

asked by josh on November 24, 2013
41. ## Biology

Based on Figure 2-4, what is the mass number of carbon? It says on the table (2-4) that carbon has 6 neutrons and 6 atomic number How do I solve this? Please help!

asked by SkatingDJ on September 14, 2015
42. ## math/fractions

kelly had 24 customers open an account during the month, which is 60 percent of her monthly goal. What is her monthly goal? How do I figure this???

asked by Caligo on August 2, 2010
43. ## math

jessica had 24 customers open an account during the month, which is 60% of her monthly goal. What is her monthly goal. I came up with 40. am I right?? If not how do I figure this out. The other choices are 36 40 54 60 Thanks to all for your help.

asked by cathy on February 8, 2010
44. ## Math- HELP!

If f(x)=3x^2 -2x -3, let g(x)=f^-1(x). Find the slope of g(x)=f^-1(x) at the point (5,2). a.) g'(5)=1/10 b.) g'(5)=1/5 c.) g'(5)=1 d.) g'(5)=2 I can't understand how to figure out this problem because I am unable to find a derivative for the function. How

asked by Ellie on July 2, 2016
45. ## Algebra 2

I need step by step on how to solve this problem plz help I've been trying to figure it out for like an hour. Solve the system using the elimination method. 4x-y+2z=-18 -x+2y+z=11 3x+3y-4z=44

asked by Malia on August 31, 2015
46. ## intergers

Explain why the product of any three consecutive integers is divisible by 6 Write out some groups of ‘three consecutive integers’ and try to figure out what they have in common.

asked by rosalyn on August 17, 2009
47. ## Algebra

Solve the equation identify as an identity, an inconsistent equation or a conditional I know the answer is Conditional {-2}, but I cannot figure out how to get it or even where to start.

asked by Tim on March 22, 2008
48. ## algebra

I am really confused!!! how do you make a table for solutions? For example y=2x The table of solutions shows 0,0; 1,2; -1,-2;2,4;-2,-4 The would than be plotted on a graph. What I can't figure out is how they got the pairs.

asked by C on April 15, 2008
49. ## math/ACT/algebra

If one side of a triangle is 10 inches long, which of the following could NOT be the lengths, in inches, of the other sides? A. 2 & 9 B. 3 & 5 C. 5& 10 D. 10 & 10 E. 10 & 12 I think it might be B but I don't know and I don't know how to figure the answer..

asked by Katie on October 26, 2007
50. ## Math

How do I figure out how to write two pairs of numbers that have a sum of -2 5/12.One pair must be negative and one pair must be negative and positive.Thanks, any help is appreciated.

asked by Payton on September 2, 2014
51. ## math

i have a gallon of paint that contains 35% solids and 65% water.if i add 5% 6.4 more ounces of water to it what will the solids content be.can you show to figure this out thank you

asked by derick on March 31, 2010
52. ## math/ACT/algebra

If one side of a triangle is 10 inches long, which of the following could NOT be the lengths, in inches, of the other sides? A. 2 & 9 B. 3 & 5 C. 5& 10 D. 10 & 10 E. 10 & 12 I think it might be B but I don't know and I don't know how to figure the answer..

asked by Katie on October 26, 2007
53. ## Chemistry

It says to convert 19.3 Inches to Centimeters. How do I figure this out? I know 1 Inch = 2.54 Centimeters.. The answer is 49.02 because I did online conversions but how do I arrive to my answer? What do you do?

asked by Jake on September 18, 2015
54. ## Math

Could anyone give me an idea of what to do for this problem? ( Like how do I set it up) Draw and mark a figure in which M is the midpoint of Segment ST, SP=PT, and T is the midpoint of Segment PQ. Thanks

55. ## math

What is the pattern to this sequence? 1,3,4,7,11,18,29 I figured it was plus the last 2 numbers which will then equal the next number. But I got messed up and can't figure the next 3 numbers in this pattern, any help is helpful. THanks

asked by Xio on September 22, 2010
56. ## math

a figure on the left is the base of a right solid whose sides are 10 centimeters tall. what is the volume of the solid in cubic centimeters?

asked by Hayley on March 9, 2011
57. ## math(trig)

i need to figure out how to write the formula for the following question In a right triangle a = 30 yds and t5an A = 2. Find b and c. I have the answers but do not know how to write the formula. Can you help me ?

asked by freddie on December 18, 2007
58. ## Chemistry

An atom contains a total of 29 electrons. When the atom is in the ground state how many principle energy levels will contain electrons? a: 1 b: 2 c: 3 d: 4 How do you figure this out?

asked by danny123 on October 9, 2010
59. ## Math

I need to figure this equation out and I do not understand what the backwards E means ODR= # of people aged ∃65 --------------------- x 100 # of people aged 15-64

asked by Danielle on February 6, 2013
60. ## math

a two figure number is written down at random find the probability a)that the number is greater than 68 b)the number is a multiple of 9 c) it is less than 100 d) it contains at least one 5 (i.e a number such as 15 or 55

asked by arzam on May 2, 2013

I want to make a 10% Lead Nitrate Reagent solution. How do I figure out how much lead nitrate to D.I. water do I use? I am making 100ml

asked by Mechelle on January 14, 2013
62. ## math

how do I figure out the following:52 students take a test and only 3 pass the test what percent of the students passed I need a strategy/show how you got the answer thanks

asked by Mattie on February 8, 2010
63. ## Chemistry

I need to figure out how many moles are in 16.0 grams of sulfur dioxide. I know that sulfur dioxide is SO2 so do I do I do? Do I find the molar mass first?

asked by Sarah on November 4, 2008
64. ## math

Using only​ algebra, find a cubic function with the given zeros. -2, 3, -7 the polynomial function is: f(x)=x^3+ (BLANK) x^2-13x-42 i can't figure out what BLANK is Thank you!

asked by Jessica on September 22, 2018
65. ## algebra

-9x+10y=-9 write the equation in slope-intercept form, what are the slope and y-intercept. I have tried to figure this out but cannot come up with correct answer please help

asked by kevin on September 8, 2012
66. ## Math

How many real number solutions does the equation have? y=3x^2-5x-5 A)one solution B)two solutions C)no solutions D)infinitely many solutions I can't figure this question out. Any help would be amazing.

asked by Sasha on June 1, 2015
67. ## liberal arts math

I have to figure the finance charge per \$ 100.00 for a loan of \$4500.00 with a finance charge of \$1080.00 I don't know what formula to use

asked by Jocelyn on May 19, 2015

WHAT IS 2/5 OF \$50.00 AND WHAT IS 3/10 OF \$50.00...IF YOU SHOW ME HOW TO GET ONE ANSWER, I CAN PROBABLY FIGURE OUT HE OTHER ONE. of means times. 2/5*50 = ?? That's (2/5)*50 = 100/5 = ?? Yes. Now, take 100 and divide it by 5. 100/5 = 100 divided by 5. What

asked by NITA on April 2, 2007
69. ## math

Sin(2x)=2sin(x)cos(x) find the exact value in radians with 2sin^2(x)+sin^2(x)=0, i really do not get this question or even how to do this ive been trying to figure it out but cant

asked by john on November 16, 2012
70. ## geometry

m(0,3) n(6,0) p(0,-3) scale factor=-1/3 how do you do this i have to draw the image of the figure with given vertices under the dilation with the given scale factor centered at the origin

asked by loli on September 9, 2013
71. ## science

plse help cant figure out thx 1. Which particles in an atom are int he nuclues? 2 Were are the electrons in an atom? thx a million :)

asked by Amy on October 2, 2008
72. ## chem help

How do I find charges for ions of elements. Group 1 has 1+ charges, group 2 has a 2+ charge and so on...what about the exceptions? In can have a 3+ or a 1+ how am I supposed to figure that out?

asked by Ciara on November 24, 2007
73. ## Physics

The figure shows the velocity graph of a 79kg passenger in an elevator. The graph is (0,0),(1,4),(5,8),(9,2) What is the passenger's apparent weight at t=1s,5s,9s?

asked by Tom1 on May 12, 2014
74. ## Math

You paint 1/2 wall in 1/4 hour. At that rate, how long will it take you to paint one wall? How do you figure out these problems, I seem to have a hard time.

asked by ana on March 11, 2018
75. ## Algebra

What is the equation of the line that is perpendicular to y = 7/9x + 15 and goes through the point (-1, 2)? A. 9x + 7y = 5 B. 9x + 7y = -5 C. 9x + 7y = 23 D. 9x + 7y = -23 My work: y - 2 = 7/9 (x + 1) y - 2 = 7/9x + 7/9 2 + 7/9 = 2 7/9 y = 7/9x + 2 7/9 I'm

asked by Magnus on November 12, 2013
76. ## chemistry

What are the concentrations of [H+] and [OH-] in each of the following. Determine the pH and pOH for each solution. A. 1.25 M HCl B. 0.25 M NaOH C. 0.035 M Ca(OH)2 D. 0.50 M HNO3 I know how to do the pH and pOH I just do not know how to figure out the both

asked by Anna on April 28, 2010
77. ## physics

If you drop a stone into a well that is d = 122.0 m deep, as illustrated in the figure below, how soon after you drop the stone will you hear it hit the bottom of the well?

asked by caroline on March 28, 2012
78. ## math

Sin(2x)=2sin(x)cos(x) find the exact value in radians with 2sin^2(x)+sin^2(x)=0, i really do not get this question or even how to do this ive been trying to figure it out but cant

asked by john on November 16, 2012
79. ## geometry

m(0,3) n(6,0) p(0,-3) scale factor=-1/3 how do you do this i have to draw the image of the figure with given vertices under the dilation with the given scale factor centered at the origin

asked by loli on September 10, 2013
80. ## Algebra

Can someone help me on this problem I worked it and worked it and cannot figure it out?? ¨ö Z + ¨ü < ¨ú Z + 1/16

asked by TRACY on November 25, 2010
81. ## Math

I have to simplify 3y^2-12y/9y^3, I just can't seem to figure out how to simplify the 9y^3.

asked by Keema on August 29, 2007
82. ## chemistry

How many Moles of H are in 2.20 moles of H3PO4? and how do you figure that out? Thanks!

asked by Alexa on October 17, 2011
83. ## Math

If 2/5 of a figure is shaded, what percent is not shaded?

asked by Mike on December 3, 2013
84. ## Intermediate Algebra 137

Can't figure out equation x/2+x/3=3/4 can you help me step by step.

asked by Jessica on June 8, 2013
85. ## geometry

In the figure below, find x if segment AB = 12 cm and segment AD = 2x + 6

asked by Anonymous on June 4, 2012
86. ## Integral Calculus

Trying to find ∫x*arctan(x)dx, but I can't figure out what do to after: (1/2)x^2*arctan(x)-1/2∫x^2/(x^2+1) dx

asked by Jay on May 24, 2012
87. ## Algebra 1

asked by Rae on April 6, 2015
88. ## math

how many grains are there in 1 and 1/2 tablets of 1/8 grains each? how do you figure this out!

asked by bryan h on April 13, 2015

the answer to this expression is -9-4√5 the expression is (2+√5)/(2-√5) i cant figure out how it got there

asked by cody on September 22, 2011
90. ## Algebra 1

ok i have a problam i cant figure out how to do thie problam (1,-3),M= -4

asked by Moke on December 6, 2007
91. ## geometry

A, B, C and D are collinear, points c x y z are collinear, AB = BC = CX YZ, AD = 54, XY = 22, and XZ = 33 i need help ho to figure this out

asked by pat on August 30, 2009
92. ## algebra

could you explain to me how to figure this out? n + n/3 = 1/2?? step-by-step??

asked by Shivangi on July 7, 2008
93. ## algebra

how do you figure this equation step by step 4x-3y=11 2x+3y=13

asked by carol on December 4, 2010
94. ## physics

A Bainbridge mass spectrometer is shown in the figure. A charged particle with mass m, charge |q|=3.2 ×10−19C and speed v=3 ×10@6 m/s enters from the bottom of the figure and traces out the trajectory shown in the fields shown. The only electric field

asked by sat on April 26, 2013
95. ## Chemistry

Hi, I'm doing a chem lab of the Percent Composition of Potassium Chlorate-A Gas Law Experiment and we need to calculate the percent of KClO3 in the sample volumetrically and gravimetrically. I need help calculating the Volumetric percent of KClO3 in sample

asked by Katelyn on October 20, 2013
96. ## Math (Trig)

I have a unit circle graph like the one at the top of a website (do a google search for 'unit circle trig functions' and click the second link, since I can't post links). I need to label the sine, cosine, tangent, secant, cosecant, and cotangent. I found

asked by Chris on March 18, 2007
97. ## MATH!!!!

The CN Tower is 553m high. A person in a boat on Lake Ontario, at a point B due south of the tower, observes the top (T) of the tower at an angle of elevation of 8 degrees. At the same time, another person, at a point C on a bearing {S 85 degrees E } from

asked by Kaitlin on September 26, 2006
98. ## MATH

A silver dollar is dropped from the top of a building that is 1398 feet tall. Use the position function below for free-falling objects. (Round your answers to 3 decimal places.) s(t) = -16t2 + v0t + s0 (a) Determine the position and velocity functions for

asked by Anonymous on February 15, 2012
99. ## english

Need help with Transitive and Intransitive verbs. 1. It is related to wheat, oats, and barley. 2. Their size might surpise you. 3. Some reach a height of 120 feet. 4. The stms measure a foot in diameter. 5. The Japanese also make flutes from these stems.

asked by ann on March 22, 2011
100. ## Math

1. Subtract (4x + 2y) – (8x – 3y). –4x – y 12x – y 12x + 5y –4x + 5y 2. Determine the best name for the quadrilateral. Graphic rectangle rhombus trapezoid parallelogram 3. Which figure has rotational symmetry for an angle of rotation of 270°?