# 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 217
1. ## Soil Chemistry

an initial pressure of 1.50atm, an initial volume of 30.0L and an initial temperature of 40.0C.

asked by John on July 1, 2014
2. ## Math

Irf the temperature is 42 degrees at a.m and it goes up to 68 degrees at noon,how many degrees warmer is it?

asked by Shreeti on June 25, 2013
3. ## Chemistry

A 63 gram block of an unknown metal at 88 degrees C was dropped into an insulated flask containing approx. 30 g of ice and 30 g of water at 0 degrees C. After the system had reached a steady temp. it was determined that 12.1 g of ice had melted. What is

asked by Lindsay on May 15, 2007
4. ## math

In a recent survey of 100 women, the following information was gathered. 33 use shampoo A. 37 use shampoo B. 49 use shampoo C. 12 use shampoos A and B. 5 use shampoos A and C. 9 use shampoos B and C. 2 use all three. Use the figure to answer the question

asked by Daniel on November 26, 2011
5. ## chemisrty

When a substance changes from one phase to another, which of the following occurs? the substance loses or gains heat the average kenetic energy of the substance changes the temperature of a substance changes the molecular motion of a substance changes

asked by Tasia on November 16, 2012
6. ## physics

A disk with a mass of 29 kg and a radius of 31 cm is mounted on a frictionless horizontal axle. A string is wound many times around the disk and then attached to a 70-kg block, as shown in the figure. Find the acceleration of the block, assuming that the

asked by Anonymous on March 25, 2011
7. ## Physics

Two packing crates of masses m1 = 10.0 kg and m2 = 4.10 kg are connected by a light string that passes over a frictionless pulley as in the figure. The 4.10-kg crate lies on a smooth incline of angle 33.0°. (a) Find the acceleration of the 4.10-kg crate.

asked by Cora on September 30, 2012
8. ## physics

In the figure , the total resistance is 10.0 kOmega, and the battery's emf is 28.0 V. If the time constant is measured to be 40.0 mu s. Calculate the total capacitance of the circuit.Calculate the time it takes for the voltage across the resistor to reach

asked by Jose on March 2, 2011
9. ## Geometry

I've been working forever to figure out this problem! If two flagpoles are 10m and 70m tall and are 100m apart, find the height of the point where a line from the top of the first to the bottom of the second intersects a line from the bottom of the first

asked by Spencer on January 16, 2008
10. ## Math

Please explain how to figure out the following 7th grade math problem: If a rubber ball bounces exactly 1/2 the height from which it is dropped; and it is dropped from the top of a building that is 64 meters tall, how high will the ball bounce on its

asked by Jaleel on October 30, 2007
11. ## Physics URGENT!!!

Two packing crates of masses 7.93 kg and 5.13 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The 5.13 kg crate lies on a smooth incline of angle 40.0°. a) Find the acceleration of the 5.13 kg crate (b)

asked by Anonymous on September 30, 2012
12. ## physics - i need A.S.A.P

An object of mass 1.5 kg is placed on a rough horizontal surface, as shown in Figure 1. Force F acts on the object. When the magnitude of F is 10 N, the object just begins to slide. Determine the coefficient of static friction between the object and the

asked by mimi on May 2, 2011
13. ## Physics

Two packing crates of masses 7.93 kg and 5.13 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The 5.13 kg crate lies on a smooth incline of angle 40.0°. a) Find the acceleration of the 5.13 kg crate (b)

asked by Anonymous on September 30, 2012
14. ## PHYSICS

Suppose that the magnetic field in the figure below has a magnitude of 1.1 T, the rod has a length of 0.86 m, and the hand keeps the rod moving to the right at a constant speed of 3.4 m/s. If the current in the circuit is 0.044 A, what is the average power

asked by Andrea on March 14, 2013
15. ## Physics

A solid ball of mass m and radius r rolls without slipping through a loop of radius R, as shown in the figure. From what height h should the ball be launched in order to make it through the loop without falling off the track? (Use any variable or symbol

asked by Gina on October 22, 2010
16. ## physics

Two packing crates of masses 10.89 kg and 2.59 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The 2.59 kg crate lies on a smooth incline of angle 40.0°. a) Find the acceleration of the 2.59 kg crate B)

asked by lib on October 4, 2012
17. ## Physics

(I'm only posting the questions I couldn't figure out, don't worry.) An object released from rest at time t=0 slides down a frictionless incline a distance of 1 meter during the first second. The distance traveled by the object during the time interval

asked by Hannah on January 17, 2008
18. ## Statistics

The weights of male babies less than 2 months old in the United States is normally distributed with a mean of 11.5 pounds and a standard deviation of 2.7 pounds. Find the 80th percentile score for these weights. I don't have a table, I have to figure it

asked by Jeri Jackson on February 25, 2014
19. ## physics

A solid ball of mass m and radius r rolls without slipping through a loop of radius R, as shown in the figure. From what height h should the ball be launched in order to make it through the loop without falling off the track? (Use any variable or symbol

asked by Anonymous on March 25, 2011
20. ## physics

A long horizontal wire carries a current of 48A . A second wire, made of 2.6mm diameter copper wire and parallel to the first, is kept in suspension magnetically 15cm below(Figure 1) . Determine the magnitude of the current in the lower wire.

asked by bud on April 8, 2013
21. ## physics

A disk with a mass of 16 kg and a radius of 41 cm is mounted on a frictionless horizontal axle. A string is wound many times around the disk and then attached to a 70-kg block, as shown in the figure. Find the acceleration of the block, assuming that the

asked by ravi on November 7, 2012
22. ## Physics URGENT!!!

Two packing crates of masses 7.93 kg and 5.13 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The 5.13 kg crate lies on a smooth incline of angle 40.0°. a) Find the acceleration of the 5.13 kg crate B)Find

asked by Anonymous on October 3, 2012
23. ## Chemistry

Samples of three different compounds were analyzed and the masses of each element were determined. Compound Mass Mass N(g) O(g) A 5.6 3.2 B 3.5 8.0 C 1.4 4.0 If you were John Dalton and had never heard of a mole, which of the following would you think were

asked by Davis on August 29, 2011
24. ## Physics - Height of ball launch

A solid ball of mass m and radius r rolls without slipping through a loop of radius R, as shown in the figure. From what height h should the ball be launched in order to make it through the loop without falling off the track? (Use any variable or symbol

asked by Gina on October 21, 2010

If a diameter of a circle (which is 18 inches) is tripled, can the expression 9 (254.34 in square) be used to find the new circle? I know the answer is yes but I can't figure out how you work it! I come with 9(1,107.36 in square) but apparently that is not

asked by Daniel on April 30, 2013
26. ## physics

In the figure below, a damped simple harmonic oscillator has mass m = 220 g, k = 95 N/m, and b = 70 g/s. Assume all other components have negligible mass. What is the ratio of the amplitude of the damped oscillations to the initial amplitude at the end of

asked by johnny on December 11, 2008
27. ## PHYSICS URGENT! PLEASE FRICTION CASE 2

A 13 kg box is at rest on a level floor. The coefficient of static friction µS = 0.9 and the coefficient of kinetic friction µK = 0.8. Audrey is applying a 140 N push at an angle (=20°) as shown in Figure 1. C) What is the magnitude of FNormal on box

asked by Sophia on December 4, 2012
28. ## Math

This is on the 2008 Free response AP Calc AB exam- #4a. Let f be the function given by f(x)=(lnx)(sinx). The figure above shows the graph of f for 0

asked by Cindy on April 12, 2016
29. ## CALC HARD...

Suppose that 430 ft of fencing is used to enclose a corral in the shape of a rectangle with a semicircle whose diameter is a side of the rectangle. (In the figure below, the blue outline represents the fencing.) Find the dimensions of the corral with

asked by HELP on October 29, 2010
30. ## Physics

A 2302 kg block of granite is pulled up an incline that has an angle of inclination of 17.0 o with a constant speed of 2.22 m/s by a steam winch (see Figure). The coefficient of kinetic friction between the block and the incline is 0.340. How much power

asked by Lauren on February 28, 2015
31. ## calculus

A book designer decided that the pages of a book should have 1-in. margins at the top and bottom and 1 2 in. margins on the sides. She further stipulated that each page should have an area of 50 in.2. Find a function in the variable x, giving the area of

asked by Anonymous on September 23, 2012
32. ## physics

An object of mass M = 911 g is pushed at a constant speed up a frictionless inclined surface which forms an angle θ = 50o with the horizontal as shown in the figure below. What is the magnitude of the force that is exerted by the inclined surface on the

asked by sara on October 14, 2010
33. ## science/physics

A woman at an airport is pulling her 19.0 kg by a strap at an angle of 32 ° above the horizontal as shown in figure Fig. P5.44. She pulls on the strap with a 40.0 N force, and friction is negligible. (a) What is the acceleration of the suitcase? (b) What

asked by brandon on December 10, 2009
34. ## Physics

The figure below shows an initially stationary block of mass m on a floor. A force of magnitude F = 0.550mg is then applied at upward angle = 19°. (a) What is the magnitude of the acceleration of the block across the floor if the friction coefficients are

asked by Uina on February 16, 2015
35. ## Physics

An 80-ft-diameter Ferris wheel rotates once every 23s. What is the apparent weight of a 80kg passenger at the lowest point of the circle? Express your answer in SI units. I know to use the equation mg-N=m(v^(2)/r) but I can't figure out how to come away

asked by Skyler on February 24, 2015
36. ## Physics

A 1.75-kg wooden block rests on a table over a large hole as in the figure below. A 5.20-g bullet with an initial velocity vi is fired upward into the bottom of the block and remains in the block after the collision. The block and bullet rise to a maximum

asked by Ana on November 30, 2014
37. ## MATH

calculate missing dimension. a) cylinder has volume 1m3 and height of 0.6m. How do I fifure the missing dimension. Could someone please provide me with a formula to figure this out. Also can someone please explain to me step by step how to do this. Cause

asked by Anonymous on September 28, 2010
38. ## physics

A 1.75-kg wooden block rests on a table over a large hole as in the figure below. A 4.60-g bullet with an initial velocity vi is fired upward into the bottom of the block and remains in the block after the collision. The block and bullet rise to a maximum

asked by jeezy on March 25, 2012
39. ## Physics

As two trains move along a track, their conductors suddenly notice that they are headed toward each other. The figure below gives their velocities v as functions of time t as the conductors slow the trains. The slowing processes begin when the trains are

asked by Jimmy on September 1, 2014
40. ## Math

Sue bought an ice cream cone from Dairy Queen. The cone had a radius of 3cm and a height of 8cm. If I use the formula of (TT=3.14, r=radius, h=height) 2 V=1/3TTr h Is the answer 50.24 cm3? Any help is appreciated. If I'm not right could you tell/show me

asked by Kyle on October 27, 2014
41. ## Physics

A long horizontal wire carries a current of 48A . A second wire, made of 2.6mm diameter copper wire and parallel to the first, is kept in suspension magnetically 15cm below(Figure 1) . Determine the magnitude of the current in the lower wire.

asked by bud on April 8, 2013
42. ## physics

In the figure below, a constant force of magnitude 82.0 N is applied to a 2.55 kg shoe box at angle = 64.5°, causing the box to move up a frictionless ramp at constant speed. How much work is done on the box by a when the box has moved through vertical

asked by Anonymous on October 14, 2012
43. ## Chemistry

A gas is confined to a cylinder under constant atmospheric pressure, as illustrated in the following figure. When the gas undergoes a particular chemical reaction, it absorbs 827 J of heat from its surroundings and has 0.66 kJ of P−V work done on it by

asked by Tanner on October 14, 2015
44. ## bashyam

For the circuit shown in the figure, letε=14 V. Initially the switch is open and the capacitor is uncharged. When the switch is closed, there is an initial instantaneous current of 1.00 mA in the resistor. Two seconds later the current through the

asked by fdbb on June 28, 2012
45. ## Physics- Help! Due soon!

Two packing crates of masses m1 = 10.0 kg and m2 = 5.00 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The 5.00 kg crate lies on a smooth incline of angle 40.0°. Find the acceleration of the 5.00 kg

asked by Landon on October 10, 2012
46. ## physics EM

You have a 0.600-m-long copper wire. You want to make an N-turn current loop that generates a 1.30 mT magnetic field at the center when the current is 0.600 A. You must use the entire wire. What will be the diameter of your coil? this doesnt seem that hard

asked by Spencer on March 31, 2008
47. ## Chemistry

A gas is confined to a cylinder under constant atmospheric pressure, as illustrated in the following figure. When the gas undergoes a particular chemical reaction, it absorbs 824J of heat from its surroundings and has 0.62kJ of P−V work done on it by its

asked by Yuki on October 2, 2013
48. ## Physics

In the absence of air resistance, a projectile is launched from and returns to ground level. It follows a trajectory similar to that in the figure below and has a range of 15 m. Suppose the launch speed is doubled, and the projectile is fired at the same

asked by Anonymous on September 18, 2012
49. ## Math

A polygon is a __ dimensional figure with ___ or more sides. A regular polygon has equal ____ lengths and equal ____ measures

asked by Anonymous on June 4, 2014
50. ## geometry

ms. p gave us a ? that was a right angle triangle & 1 side was "15ft" and the other side was"9ft".then she told us the answer was "67ft" and she told us we had to figure out how she got the answer.

asked by ms. mysterious on March 27, 2011
51. ## Biology

How do you determine how the age of a specimen where there is only 1/2 of the original Carbon14 isotope left? What if 1/2 of the original isotope was left? I cannot show my work because I do not know how to figure this out.

asked by Diane on January 10, 2016
52. ## Algebra 2

A ball is dropped from 400 ft what is the height of the ball on the 6th bounce? 1 bounce =280 ft 2 bounce= 196 ft 3 bounce = 137.2 How do I figure this out?

asked by Ana on February 6, 2014
53. ## economics

Expected cash flow from security \$1000. What is the present value of expected cash flow (15% discount rate)? Please explain how to figure it. Thank you so much.

asked by Therese on October 29, 2010
54. ## Math

Jillian wants to organize her CD collection into wooden crates. Each crate holds 8 CDs. Jillian has 48 CDs. How can she use a picture to figure out how many crates she needs?

asked by Max on November 13, 2012
55. ## chemistry

How many liters of CO2 gas are contained in a 3.16 liters of a gas mixture which is 8.1% (v/v) CO2? They never gave us the formula or a process to figure this out in class. Will you please help?

asked by Anon on November 13, 2014
56. ## calc limit

lim (2^x - 3^-x)/2^x + 3^-x x-> infinity Thanks. Do you mean (2^x - 3^-x)/(2^x + 3^-x) or [(2^x - 3^-x)/2^x] + 3^-x ? in other words, is the second 3^-x in the denominator? In any case, the limit of 3^-x as x-> infnity is zero. That should help you figure

asked by Rom on March 12, 2007
57. ## Physics

The figure gives the acceleration a versus time t for a particle moving along an x axis. The a-axis scale is set by as = 14.0 m/s2. At t = -2.0 s, the particle's velocity is 11.0 m/s. What is its velocity at t = 6.0 s?

asked by laken on January 24, 2014
58. ## Math

Complete the explanation of why the relationship is not linear. x 1 2 3 4 y 3.7 7.7 11.7 16.7 The relationship is not linear because the (y-intercept or rate of change) is (not constant, constant, not zero or zero) How would I be able to do this or figure

asked by Patrick on September 26, 2018
59. ## Algebra 2

What are the real and complex solutions of the polynomial equation? 27x^3 + 125 = 0 I already got the real solution x = -5/3, I just need to figure out how to find the complex solution. Any help?

asked by Harold on December 23, 2015
60. ## math

given the point (-9,6), determine the points that are symmetric to this point with respect to the x-axis,the y-axis, and the origin, respectively. I know what the points are I just don't know how you figure out what order their in. (9,-6) (9,6) and (-9,-6)

asked by lana on August 26, 2011
61. ## Math

I need to figure out how to make graphs on a computer for a math project. Any help? I need to make histograms, back to back boxplots, and back to back stemplots.

asked by Kelsie on September 30, 2012
62. ## Physics

Figure 2-41 gives the acceleration a versus time t for a particle moving along an x axis. The a-axis scale is set by as = 13.0 m/s2. At t = -2.0 s, the particle's velocity is 10.0 m/s. What is its velocity at t = 6.0 s?

asked by Linda on September 18, 2011
63. ## math

in december the average rainfall in all of the deserts is 0.89 mm.USE the figure from the table to write a comparison of average desert rainfall in august and december?

asked by wafi on October 26, 2010
64. ## Calculus

two sides of a triangle have lengths 15 m and 20 m. the angle between them is increasing at a rate of pi/90 rad/s. At what rate is the area changing when the angle between the two given sides is pi/3 Can't seem to figure it out!

asked by Lomomoyan on June 13, 2017
65. ## algebra

how do you solve 140 s + 120 p = 1540 if your trying to figure out how many cups of juice there is for strawberry and pineapple if it has 120 calories & the strawberry one only has 140 ?

asked by abril on February 27, 2011
66. ## statistics

you have 8 blue marbles, 7 red marbles, and 5 green marbles. What is the probability of obtaining at least 2 red marbles in three draws with replacements? I have the answer, just can't figure out how to get it. Thanks!

asked by Christine on May 11, 2008
67. ## math

Give the numbers of elements in the regions marked I, II, III, IV, V, VI, VII, VIII in the figure. |U| = 240, |A| = 15, |B| = 14, |C| = 24 |A¿B| = 4, |A¿C| = 2, |B¿C| = 7, |A¿B¿C| = 1 | I | = 1 | II | = 2 | III | = 3 | IV | = 4 | V | = 5 |

asked by Anonymous on August 15, 2012
68. ## PHYSICS

Let say I have a chandelier that hangs from the ceiling. My chandelier weighs 75kg, how much tension is in the cable that connects it to the ceiling? what is the formula for this and how do I figure out the tension?

asked by GRISSELL on February 5, 2012
69. ## ALGEBRA

Give the numbers of elements in the regions marked I, II, III, IV, V, VI, VII, VIII in the figure. |U| = 220, |A| = 20, |B| = 14, |C| = 12 |A∩B| = 2, |A∩C| = 2, |B∩C| = 6, |A∩B∩C| = 1 | I | = | II | = | III | = | IV | = | V | = | VI | = | VII | =

asked by Monic on May 11, 2012
70. ## algbra

heyya Your equation makes no sense. Your equation makes no sense. 4x = y > 6 4x = y > 6 does it make since if you put a line under >. Because that is the question I am suppose to figure out.

asked by amanda on July 4, 2007
71. ## Math

If you have a graph with the x-axis as the days of the month, and the y-axis as stock price.... Then, how to do you figure out the percentage drop in stock price for each week?

asked by Zac on April 19, 2009
72. ## physics

The figure gives the acceleration a versus time t for a particle moving along an x axis. The a-axis scale is set by as = 15.0 m/s^2. At t = -2.0 s, the particle's velocity is 7.00 m/s. What is its velocity at t = 6.0 s?

asked by Brian on February 6, 2015
73. ## college

Figure 11-50 shows two examples of SHM, labeled A and B. (The vertical axis is marked in increments of 0.5 m and the horizontal axis is marked in increments of 1 s.)

asked by Anonymous on December 6, 2010
74. ## pre calc

My teacher asked for the EXACT VALUES of sin(pi/6) cos(pi/4) csc(pi/3) I have to figure it out without a calculator? Also, if I was to do with it with a calculator, would csc be typed as 1/sin?

asked by Jill on December 9, 2011
75. ## statistics

I need to figure out the variables one independent and the other dependent from the data set. I forgot what a data set is and what the variables are I have the paper I m supposed to be looking on for it but have no idea what i m looking for.

asked by Anoymous on September 12, 2015
76. ## math

asked by Anonymous on May 13, 2013
77. ## geometry

A fish in an aquarium is 4 feet long. A scale model of the fish is 2 inches long. What is the scale factor?

asked by Johana on April 26, 2016
78. ## Algebra

The area of the top of a triangular corner desk must be at least 7 sq. ft. If the base of the triangular desk top needs to be four feet, what should the height be?

asked by Melissa on February 6, 2011
79. ## Algebra1

the area of a wall is 15 square feet. if i can paint 180 sq inches per hour how many hour will it take me to paint the wall.

asked by Anonymous on March 18, 2012
80. ## math

On a blueprint in which 2 inches represent 5 feet, the length of a room mesure 7 1/2 inches. The actual length of the room is?

asked by kate rapp on October 1, 2013
81. ## fmath

Deb cut 25 feet of rope into pieces that were each 1/4ft long. How many of these pieces did Deb have after cutting the rope?

asked by cbvcfv on February 27, 2017
82. ## math

how do you convert miles to feet in the u.s. customary sysyem? multiply by 12 divide by 12 multiply by 5,280 divide by 5,280

asked by tanya on November 7, 2015
83. ## math

Hi! If 1/8=1 foot on a scale and the deck is 2 3/8 inch. How many feet will it be if 1/8 inch is equal to 1 foot 3/8 divided by 1/8=3ft 2 in divided by 1/8=

asked by semoine on November 6, 2014
84. ## algebra

The area of the top of a triangular corner desk must be at least 7 sq. ft. If the base of the triangular desk top needs to be four feet, what should the height be?

asked by Amy on March 15, 2011
85. ## calculus

A stone is dropped from a height of 144 feet. a. When will the stone hit the ground? b. With what velocity does it hit the ground?

asked by Carly on June 26, 2011
86. ## Algebra II

The barometric pressure in inches of mercury at a height of h feet above sea level is p=30.0e^-kh where k=3.83*10^-5. At what height will the pressure be 10.0 in. of mercury.

asked by Joy on November 21, 2011
87. ## Math

One side of a triangle is half the longest side. The third side is 7 less than the longest side. The perimeter is 53 feet. Find the three sides

asked by Grace on February 12, 2015
88. ## Math

The perimeter of a small rectangular garden is 18 feet. if the length is twice the width, find the width and the length of the garden.

asked by Katelyn Haggard on September 4, 2016
89. ## math

One side of triangle is one-third the longest side. The third side is 13 feet less than the longest side. The perimeter is 106. Find all three sides.

asked by angie on September 17, 2014
90. ## Math

Consider the following where s is in feet and t is in seconds. s(t) = t^3 + 4t^2 + 6t + 4 (a) Find v(t). v(t) = (b) Find a(t). a(t) = (c) Find v(3). (d) Find a(3). v(t) is the first derivative of s(t). a(t) is the second derivative of s(t). I will be happy

asked by India on February 20, 2007
91. ## math

Justine can make one place mat out of 1/2 yard of material. If she has 5 feet of material, how many place mats can she make?

asked by Anonymous on January 29, 2013
92. ## algebra

The perimeter of a pool is 64 feet and has a width of x and a length of x-4. Write an equation and find both the width and length of the pool.

asked by bob on February 1, 2014
93. ## math

how do you convert miles to feet in the u.s.customary system? a.multiply by 12 b.divide by 12 c.multiply by 5,280 d.divide by 5,280

asked by babyc36 on June 15, 2013
94. ## Math10-3

A 2 by 6 is 1 1/2 in thick. how high would a stack of 2 by 6 boards be if the stack is 10 boards high? Express your answer in feet and inches

asked by Dani on May 5, 2016
95. ## math

A fish in an aquarium is 4 feet long. A scale model of the fish is 2 inches long. What is the scale factor?

asked by Johana on April 27, 2016
96. ## math

the model of a car is 4 1/8 inches wide. is three inches ok the model represents five feet what is the actual width of the car

asked by christine on February 1, 2016
97. ## algebra

at 5 p.m., a person 5 feet tall casts a 10-foot shadow. at the same time, a flagpole casts a 40-foot shadow?

asked by dona on June 17, 2011
98. ## Algebra 2

how do I find the length and width of a rectangle when the width of the rectangle is 3 feet less tahn the length. The area is 18ft^2

asked by Kate on July 17, 2010
99. ## algebra

a charges \$50 for gate and \$3.50 per foot b charges \$75 for gate and \$2.25 per foot how many feet of fencing would result equal estimates?

asked by Anonymous on September 22, 2014
100. ## math

One side of triangle is 5 more than 2 times the shortest side. The third side is 23 feet more than the shortest side. The perimeter is 72. Find all three sides.

asked by j on February 10, 2017