# find the derivative of y=(3x+1)^2 y= square root 13x^2-5x+8

97,722 questions, page 827-
## Math

A salesperson's weekly paycheck is 25% less than a second salesperson's paycheck. The two paychecks total $1425. Find the amount of each paycheck. first salesperson's paycheck ? second salesperson's paycheck?

*asked by Kathy on September 27, 2015* -
## math

so if my question is find the dimensions of a box that will hold twice as many cubes as a box that is 2 by 6 by 4 a] volume of original box: 48 b]volume of new box is :96 c] dimensions of new box is 12 by 4 by 2

*asked by tanisha on October 7, 2008* -
## Math

Find the integrals. (show steps) (integral sign) xe^(4x^2) I think this how is how its done: (integral sign) xe^(4x^2) it's a u du problem let u=4x^2 so, du=8x dx now you have an x already so all u need is 8 inside and and 1/8 outside the integral [1/8]

*asked by Jay on December 11, 2006* -
## Calculus I

A tank in the shape of an inverted right circular cone has height $ 10$ meters and radius $ 8$ meters. It is filled with $ 6$ meters of hot chocolate. Find the work required to empty the tank by pumping the hot chocolate over the top of the tank. Note: the

*asked by Jeff on February 14, 2008* -
## Math

Use the info to find the equation of the hyperbola: The transverse axis of the hyperbola lies on the line y=–3 and has length 6; the conjugate axis lies on the line x=2 and has length 8.

*asked by Dustin on October 14, 2017* -
## Please HELP with this storie problem

Dave buys 3 green peppers and 2 red peppers for $3.45. Ruth buys 4 green peppers and 3 red peppers for $ 5.00. Find the price of each variety of pepper.

*asked by David on December 13, 2012* -
## Physics

A roller coaster is initially at a height of 40 m above the ground and has an initial velocity of 15 m/s. Using conservation of energy, find the velocity of the roller coaster at a height of 5 m above the ground.

*asked by Drew on November 21, 2012* -
## Math/algebra

Solve this: the cost of renting a kayak for 1 hour is $15, for 2 hours is $20, for 3 hours is $25, for 4 hours is $30. Write two different algebraic expressions that can be used to find the cost of renting a kayak for h hours.

*asked by Langston on November 8, 2016* -
## math

Two chips are selected from a box containing 6 blue chips, 4 red chips, and 3 green chips. The first chip selected is not replaced before the second is drawn. Find P(red, then green).

*asked by brandon on April 15, 2010* -
## maths

the digit at the tens place of a two digit number is four times that in the units place if the digits are reversed he new number will be 54 less than the orginal number. find the orginal number

*asked by Anonymous on July 4, 2016* -
## Calculus

Consider the function f(x)=sin(1/x) Find a sequence of x-values that approach 0 such that sin (1/x)=0 sin (1/x)=1 sin (1/x)=-1 Is sin sin (1/x)=0 and sin (1/x)=-1 does not exist. What is sin (1/x)=1 then. How would I show the sequence of values, any help

*asked by George on September 8, 2008* -
## Algebra help

Dave buys 3 green peppers and 2 red peppers for $3.45. Ruth buys 4 green peppers and 3 red peppers for $ 5.00. Find the price of each variety of pepper.

*asked by Sam on December 13, 2012* -
## statistic

There are 120 student in class in which 20 of them are girls and rest boys.if the average marks in math of boys is 65% and that of girls is 80%. find the average marks of the class

*asked by Anonymous on September 6, 2018* -
## Physics

A roller coaster is initially at a height of 40 m above the ground and has an initial velocity of 15 m/s. Using conservation of energy, find the velocity of the roller coaster at a height of 5 m above the ground.

*asked by Erika on November 18, 2012* -
## ,math

Find the number of subsets of the given set. {math, English, history, science, art} Is this correct: 1. {} 2. {math} 3. {English} 4. {history} 5. {science} 6. {art} 7. {m, E} 8. {m,h} 9. {m, s} 10. {m, a} 11. {e, h} 12. {e, s} 13. {e, a} 14. {h, s) 15. {h,

*asked by bwb on April 15, 2010* -
## 9th grade polynomials

How do you write the expression for the area of the rectangle If the length of a rectangle is two more than three times it's width,then write an expression for area of the rectangle Find the perimeter of the rectangle in problem 1.

*asked by Corey wicks on February 17, 2011* -
## math

three numbers are in the ratio 6:3:1, and the sum of these numbers is 420. If the first number is reduced by 50%, the second number is increased by 42, and the sum of the numbers remains the same, find the resulting ratio of the numbers.

*asked by bt on February 4, 2014* -
## Math help storie problem

Dave buys 3 green peppers and 2 red peppers for $3.45. Ruth buys 4 green peppers and 3 red peppers for $ 5.00. Find the price of each variety of pepper.

*asked by David on December 13, 2012* -
## algebra

A scale model of the new dog park has an area of 128 cm2. The actual dog park will have an area of 8 km2. Find the scale that has been used for the model.

*asked by denise on June 2, 2012* -
## physics

Find its density. Express your answer to two significant figures and include the appropriate units How does this compare with the density of water? Express your answer using two significant figures.

*asked by Phil on April 3, 2014* -
## math

There are 120 student in class in which 20 of them are girls and rest boys.if the average marks in math of boys is 65% and that of girls is 80%. find the average marks of the class

*asked by math on September 6, 2018* -
## Geometry

Triangle UVW is the pre-image of triangle RST with a scale factor of 3. Find the area of triangle UVW if the area of triangle RST is 9 cm2.

*asked by Lindsey on May 2, 2012* -
## ALGEBRA

A phone company charges $0.40 per long distance call plus $0.20 per minute. Find the cost of an 18-minute long distance phone call. Please explain it if you can

*asked by Amy on October 18, 2011* -
## geometry

in a parallelogram, consecutive angles aresupplementary. in the parallelogram below angle F measures (6x + 1) degrees and angle G measures (8x +11) degrees. find the numerical measure of both angles.

*asked by Myquan on January 25, 2012* -
## Physics

A roller coaster is initially at a height of 40 m above the ground and has an initial velocity of 15 m/s. Using conservation of energy, find the velocity of the roller coaster at a height of 5 m above the ground.

*asked by Anonymous on November 19, 2012* -
## mat117/algebra

The area of a rectangle of length x is given by 3x^2 + 5x. Find the width of the rectangle. Show me the formula and how to use it please. area= length times width 3x^2 + 5x = x * width divide both sides by x, then you have width.

*asked by Diana on June 24, 2007* -
## MATh ( translate words into number)

40. The greater of two numbers is 1 ore than twice the smaller. Three times the greater exceeds 5 times the smaller by 10. Find the numbers. How do i start please explain. WHere do i start and how to do do this. AM very confused.

*asked by Tiffany on October 10, 2011* -
## math

A model train is built using the scale 1:60. The actual length of the dining car is 2,100cm. Find the length of the dining car of the model train.

*asked by linda on February 15, 2011* -
## History

Does any know how the American public felt about what happen to the Japanese American internment issues. I know how the American Japanese felt however I cannot find any express opinions of the American public.

*asked by David on March 20, 2011* -
## Algebra Help

How do I find the center of a circle using the points (2,8) (-4,6) (1,-1) I also found the Equation of the perpendicular bisector of the line between the first and second point which was y=(3/2)x + 5 And the Equation of the perpendicular bisector of the

*asked by Bri on September 24, 2014* -
## Math Geometry

Polygon ABCD is similar to polygon WXYZ, and and are corresponding sides. You know the perimeter of each polygon, and you know the measure of BC. What can you find? A. Measure of all sides of both polygons B. Measure of

*asked by Seth on June 21, 2016* -
## Science

Volume of a gas at 27degree centigrade and 760mm pressure is 200cm cube then find the volume of same gas at -3degree centigrade and 760mm pressure

*asked by Neeraj on February 2, 2018* -
## maths

when the depth of liquid in a container is x cm, the volume of the liquid is x(x^2+25) cm^3. Liquid is added to the container at a constant rate of 2 cm^3/s. Find the rate of change of the depth of the liquid at the instant when x=1

*asked by tasha on October 3, 2013* -
## pre-calculus

How do you write the standard form of the equation of the line passing through the points M(-4,-2) and N(4,7)? How do you find the slope-intercept form of the equation of the line passing through the points P(2,-9) and Q(3,-7)?

*asked by maxine on May 13, 2009* -
## pre-calculus

How do you write the standard form of the equation of the line passing through the points M(-4,-2) and N(4,7)? How do you find the slope-intercept form of the equation of the line passing through the points P(2,-9) and Q(3,-7)?

*asked by maxine on May 13, 2009* -
## Physics

*asked by Michelle on November 19, 2012* -
## math

GEOMETRY The formula for the perimeter of a rectangle is P = 2 + 2w, where is the length and w is the width. A rectangle has a perimeter of 24 inches. Find its dimensions if its length is 3 inches greater than its width.

*asked by Sally on November 3, 2015* -
## Physics Help!!

Suppose the kinetic energy of an object moving is 15 J and the potential energy is 25 J at some point in time. Then I measure the potential energy some time later and find it to be 10 J. What is the new kinetic energy?

*asked by Liz on October 8, 2010* -
## Grammar

Solution-dependence-alternative (find) Answer:alternative and dependence Resources-technology-stocks(deplete) Answer:Resources and stocks Now is it correct ??

*asked by Maryam on June 7, 2013* -
## Physics

*asked by Anonymous on November 19, 2012* -
## Math

The age of a man 7 years ago was seven times the age of his son. Father's age after 3 years will be three times the age of the son. Find their present ages.

*asked by Annaa on February 16, 2019* -
## math

find the ratio of the length of the blue rectangle, to the length of the green rectangle, repeat this for width, perimeter and area blue rectangle is 2 ft by 3 ft green rectangle is 4 ft by 6 ft

*asked by Anonymous on January 18, 2017* -
## alg.

Find the coordinates of the vertex and the equation of the axis of symmetry of the parabola with the given equation. y = 8x2 + 48x − 3 vertex (x, y) = _____________ axis of symmetry _____________

*asked by KMILLhelp on April 21, 2014* -
## math

Find the number of subsets of the given set. {math, English, history, science, art} Is this correct: 1. {} 2. {math} 3. {English} 4. {history} 5. {science} 6. {art} 7. {m, E} 8. {m,h} 9. {m, s} 10. {m, a} 11. {e, h} 12. {e, s} 13. {e, a} 14. {h, s) 15. {h,

*asked by bwb on April 15, 2010* -
## math

the shadow of an electric pole is 5m long when the angle of elevation of the sun is 60 degree .find the length of the shadow when the angle of elevation of the sun is 45 degree.

*asked by Anonymous on December 15, 2013* -
## Algebra

Find two consecutive even integers that have a sum of 450. 224+226=450 If two consecutive even integers, x and x + 2, add up to 450, then 2x + 2 = 450 2x = 448 x = 224 is the smallest of the two. Okay thanks.

*asked by Shawn on August 4, 2007* -
## geometry

A kayaker sees a bear in the distance. If the kayaker is 48 yards lower than the bear and the angle of elevation from the kayaker to the bear is 15°, find the horizontal distance from the kayaker to the bear. please help

*asked by morgan on July 6, 2017* -
## Maths

A rectangle has legth & width in the ratio of 3:2.If the length is increased by 8 & width is increased by 50%.The ratio of new perimeter to origial perimeter is 8:5.Find the area of new rectangle.

*asked by JAZZY on November 24, 2010* -
## Physics

Two identical capacitors store different amounts of energy: capacitor A stores 2.4 10-3 J, and capacitor B stores 4.8 10-4 J. The voltage across the plates of capacitor B is 11 V. Find the voltage across the plates of capacitor A.

*asked by Anonymous on September 12, 2013* -
## math

usethe rational zero theorem to find all real zeros of the polynomisl function.Use the zeros to factor f over the real numbers. f(x)=x^4+2x^33-7x^2-8x+12 what are the real zeros?> use the real zeros to factor f f(x)=

*asked by anonymous on January 10, 2013* -
## Physics

Two identical capacitors store different amounts of energy: capacitor A stores 2.5 x 10-3 J, and capacitor B stores 2.8 x 10-4 J. The voltage across the plates of capacitor B is 11 V. Find the voltage across the plates of capacitor A.

*asked by Ann on September 12, 2013* -
## Math

Is there are 56 white marbles in a jar and there are 7 times as many white marbles as blue marbles in the jar write and solve an equation to find the number of blue marbles

*asked by Nico Albano on April 23, 2019* -
## maths

16. A pole of length 10 m casts a shadow 2 m long on the ground. At the same time a tower casts a shadow of length 50 m on the ground, then find the height of the tower.

*asked by pritika on July 31, 2014* -
## Math

53.3 feet was equivalent to 1 yard on the football field. which equation could coach use to find f the number of feet equivalent to y the number of yards on a football field? A.f=3y B.f=y+3 C.f=3/y D.f=y/3 A

*asked by Jerald on April 17, 2013* -
## Math, Algebra

A dog is 3/8lb heavier than a squirrel. The squirrel is 3/8lb lighter than the ferret. If the weight of the ferret is 1/2lb , find the weight of the dog? ( x+3/8)+(1/2-3/8)+1/2 was the equation I came up with

*asked by Meghan on March 24, 2015* -
## math

A box contains 8 blue balls and 2 red balls. Three balls are selected from the box at random without replacement. Find the probability that two balls are blue and one ball is red.

*asked by Suetusi on May 2, 2011* -
## Physics

Two identical capacitors store different amounts of energy: capacitor A stores 2.5 x 10^-3 J, and capacitor B stores 4.8 x 10^-4 J. The voltage across the plates of capacitor B is 12 V. Find the voltage across the plates of capacitor A.

*asked by e on February 21, 2015* -
## Chemistry

A chemist wants to make a solution of 3.4 M HCl. There are two solutions of HCL that he can find on the shelf. One has a concentration of 6.0 M, while the other has a concentration of 2.0 M. Which solution can the chemist use to make the desired acid?

*asked by Hunter on February 16, 2012* -
## math

Karl has an annual salary of $22,000 and pays $250 each month for car insurance. a) Find Karl’s annual cost for car insurance b) Karl’s payments on car insurance is what percentage of his annual income?State your answer to the nearest whole number.

*asked by jess on August 26, 2016* -
## Math/Fractions

1.Find the LCD and add the fractions. 1/125+4/50= 11/125, 1/1250, 1/35, 551/6250 My answer is 11/125 2.Subtract; then reduce answer to lowest terms. 5/22-1/41= 227/902,183/901,183/902,61/301 My answer is 183/902

*asked by Suzy on February 3, 2013* -
## math

Create a piecewise function of the following scenario where D(t) is the total distance walked (in miles) as a function of time t (in minutes): “You begin a walk from your home at a fast pace of 6 miles per hour for 25 minutes. You rest for 15 minutes,

*asked by briana on September 16, 2015* -
## Stats

Among 15,378 Delta airline passengers randomly selected, 3 were bumped from a flight against there wishes (based on data from the us dept of transportation) find the probability that a random selected passenger is involuntarily bumped. Is such bumping

*asked by Help please! on February 1, 2011* -
## engr. econ.

homeowener is considering refinancing his home. original amount of the 30 yr loan was 250,000 at 12% compounded monthly. The owner has made ten years of payments. how much is the remaining balance on the loan. this is what I gotL r=12%, m=12,

*asked by jen on April 21, 2009* -
## Chemistry

If all ionic substances completely ionized, the aqueous solution with the lowest freezing point would be 1)0.25m NH4NO3 2)0.30m BaCl2 3) 0.35m LiBr 4) 0.50m Sucrose 5) 0.40m MgSO4 I know that i have to multiply m and i to find the largest delta T. I am

*asked by Hannah on February 12, 2012* -
## physics

Suppose the stone is thrown at an angle of 30.0 degrees below the horizontal. If it strikes the ground 57.0 m away, find (a) the time of flight, (b) the initial speed, and (c) the speed and the angle of the velocity vector with respect to the horizontal

*asked by Adam on October 14, 2015* -
## statistics

The weight of corn chips dispensed into a 19-ounce bag by the dispensing machine has been identified as possessing a normal distribution with a mean of 19.5 ounces and a standard deviation of 0.1 ounce. Suppose 100 bags of chips are randomly selected. Find

*asked by lucky on November 13, 2010* -
## calc

Verify that the function satisfies the three hypotheses of Rolle's Theorem on the given interval. Then find all numbers c that satisfy the conclusion of Rolle's Theorem. f(x)= x sqrt(x+21) , [-21,0] If there is more than one solution separate your answers

*asked by Jossy on April 12, 2007* -
## Chemistry

The combustion of 0.0222g of isooctane vapor, C8H18(g), at constant pressure raises the temperature of a calorimeter 0.400 degrees C. The heat capacity of the calorimeter and water combined is 2.48kJ/degrees C. Find the molar heat of combustion of gaseous

*asked by Heather on October 9, 2012* -
## Physics 11

A 62kg cyclist changes the speed of a 12kg bicycle from 8.2m/s to 12.7m/s. Determine the work done. I've already answered & gotten this question correct, however it made me confused about the concept. I found Ek. & Ek to find change in Ek which was

*asked by Kayla on May 30, 2017* -
## English: Puritans

The question is: Why could Winthrop's ideal not be achieved? The paragraph where I have to find the answer: Winthrop describes an ideal society, which, if the Puritans had been able to achieve it, would have been a reasonable facsimile of paradise on

*asked by Amy~ on September 19, 2010* -
## Math

Hello, I have a probability problem on combination that is not easy to solve for me, and I need help. Thank you. Probleme: Problem: Little Caesar's Pizza had a commercial on tv that said you could buy 1 pizza and get another one free, with up to 5 toppings

*asked by bikie on April 5, 2011* -
## AMHS'Mechanics

The spring shown in figure is unstreched when a man starts pulling on the cord.The mass of the block is M.If the man exerts a constant force F.Find:-1.The amplitude and time period of the motion of thae block,2.The energy stored in the spring when the

*asked by Deep on February 25, 2012* -
## Math

Meagan bought a 3 liter soda and a bag of cups to a party. Each cup holds a volume of 250ml How many cups will be needed for soda 12 Ms.Baggett took a total of 3 hours to grade 120 papers Which of the following can be used to find m the number of minutes

*asked by Jerald on April 17, 2013* -
## Maths

Use lagrange multiplier to find greatest and least distance from point (2,1,-4) to ellipsoid x^2 +5y^2 +z^2 =1. I tried solving it but i got a polynomial to power 4. Its too long to post my working so ill just dropbox it.

*asked by Elven on March 22, 2017* -
## math(compund interest )

10.On 16 April 1990, $5000 was invested at 6% compounded semi annually.Find the amount accumulated on 16 October 1993 if the rate was charged to 8% compounded quarterly beginning 16 april 1992. semi annualy compounding= (2 times in years) quarterly

*asked by fizz on May 15, 2014* -
## physics

In Figure 12-68, two identical, uniform, and frictionless spheres, each of mass 4.1 kg, rest in a rigid rectangular container. A line connecting their centers is at 45° to the horizontal. Find the magnitudes of the forces on the spheres from (a) the

*asked by Sarah on December 29, 2010* -
## Chemistry

The pH of 0.50 M HBrO(aq) is 4.50. Calculate the change in pH when 6.50 g of sodium hypobromite is added to 110. mL of the solution. Ignore any change in volume. Ka of HBrO is 2E-9 I found the amount of moles used for each (.0547 mol NaBrO, and .055 mol

*asked by Trixie on March 16, 2010* -
## Physics

How do you find acceleration and Fnet for a diagram containing only one object with a mass, like say 10kg, and two arrows going in the opposite directions(horizontally) with thier tips touching each side of the object. **NOTE: there are no other numbers

*asked by Pamela on June 7, 2007* -
## physics

A MAN HOLDS A 178 N BALL IN HIS HAND, WITH THE FOREARM HORIZONTAL. HE CAN SUPPORT HE BALL IN THIS POSITION BECAUSE OF THE FLEXOR MUSCLE FORCE, M, WHICH IS APPLIED PERPENDICULAR TO THE FOREARM. THE FOREARM WEIGHS 22 N AND HAS A CENTER GRAVITY. FIND THE

*asked by kassy on November 8, 2016* -
## Further Maths

uniform ladder of length 5m and weight 80 newtons stands on rough level ground and rests in equilibrium against a smooth horizontal rail which is fixed 4m vertically above the ground. If the inclination of the ladder to the vertical is x, where tan x is

*asked by Max on February 27, 2015* -
## Math 115

Create a piecewise function of the following scenario where D(t) is the total distance walked (in miles) as a function of time t (in minutes): “You begin a walk from your home at a fast pace of 6 miles per hour for 30 minutes. You rest for 10 minutes,

*asked by Holie on February 14, 2017* -
## World History

Where can I find maps on the diffusion of diseases in the time period 1450-1750? I need diffusion maps on Syphilis and Hepatitis from Americas to Europe, Syphilis from Europe to Africa, and Malaria and Yellow Fever from Africa to Americas. Also, I need

*asked by Anonymous on December 3, 2007* -
## earth

3. Show how the length of day changes with latitude by plotting the following points. Use the table below as a graph and place an X in the box where you want to plot a data point. For example, if you find that a day is 10 hours long at 30° N latitude,

*asked by courtney on March 26, 2012* -
## chemistry - pick a polymer

I need to pick a polymer for my science project. It has to be organic and preferably simple. Some that are already taken are: polyethene, polystyrene, PVC, polyacrylonitrile, DDT , nylon.. Thanks a lot it has been really hard for me to find something. I

*asked by Annie on September 26, 2006* -
## physics

1)Two metal spheres are suspended from insulation threads. A negatively charged rod is brought near these spheres. One shere is pushed away from the rod and the other atracted towards it. Describe the behavior of the spheres. I know one has to be negative

*asked by Anonymous on April 18, 2008* -
## math

Your great uncle gave you $2 on your first birthday, $4 on your 2nd birthday, $8 on your 3rd birthday, and so on. (a) How much money will you receive on your 18th birthday? (b) How much money will you receive on your nth birthday and explain how to use

*asked by Ella Mae on December 22, 2009* -
## Math

the air pressure of hurricane katrina at landfall was greater than 17 millibars plus the air pressure p before landfall. write and solve an inequality to find the air pressure of the storm before landfall i think the answer is l>17 millibars+p

*asked by Angelina on March 9, 2015* -
## calculus

Find circumference of the circle r=2acos theta. s= Int (0 to 2pi) of Sqrt(4a^2cos^2 theta+4a^2sin^2 theta)d theta =Int (0 to 2pi)2a*Int theta d theta =2a(2pi-0)=4a*pi Book shows 2a*pi. Am I wrong somewhere?

*asked by ms on September 16, 2013* -
## math

Find the entries of the following matrices: (a) the 2 ×2 matrix M for the reflection across the line y = x. (b) the 2 ×2 matrix N for the 90 degree counterclockwise rotation about the origin. (c) the product MN;what transformation does this represent?

*asked by Eunice on April 25, 2010* -
## algebra 2

With the wind, a jet can fly 2500 km in 2 hours and 30 minutes. Against the wind, it can fly only 2000 km in the same time. Find the rate of the jet if the rate of the jet if the rate of the wind is 100 km/hr. Please Show All Work!

*asked by Trisan on October 18, 2009* -
## Math probability question

a spinner is divided into three areas x,y,z. the measure of angle a is 90 degrees, angle b is 120 degrees and angle c is 150 degrees. If the spinner is spun once, find the probabliity that it will land in 1) area X 2) area y 3) area z

*asked by Bob on October 8, 2008* -
## math

Your great uncle gave you $2 on your first birthday, $4 on your 2nd birthday, $8 on your 3rd birthday, and so on. (a) How much money will you receive on your 18th birthday? (b) How much money will you receive on your nth birthday and explain how to use

*asked by alicia on December 14, 2009* -
## math

The length of a rectangle is 5 in. more than twice its width.? How do I find the width of the rectangle. The length = (2 x width) + 5 inches. Do you have any other information about the rectangle such as the area or the perimeter. I don't think there is

*asked by Diana on July 26, 2006* -
## physics

A cart is driven by a large propeller or fan, which can accelerate or decelerate the cart. The cart starts out at the position x = 0 m, with an initial velocity of + 3.3 m/s and a constant acceleration due to the fan. The direction to the right is

*asked by Anonymous on January 28, 2014* -
## Physics

The sled is stuck in the snow. A child pulls on the rope and finds that the sled just barely begins to move when he pulls with a force of 24 N, with the rope at an angle of θ = 33° with respect to the horizontal. The mass of the sled is 14 kg. If the

*asked by R on May 8, 2013* -
## Gen. physics

A cart is driven by a large propeller or fan, which can accelerate or decelerate the cart. The cart starts out at the position x = 0 m, with an initial velocity of +6.4 m/s and a constant acceleration due to the fan. The direction to the right is positive.

*asked by ODU on July 2, 2013* -
## Trigonometry

Find the angular speed in radians per sec. of the second hand on a clock. My answer is 1 rpm =1*2pi radians/1minute(1 rotation = 2pi radians) =2pi radians/60seconds =1/30 radians/seconds It goes 2PI radians in 60 seconds. What happened to the PI? I forgot

*asked by James on July 4, 2007* -
## physics

The cavle on an elevator is what pulls the elevator up, and allows it to come down safely. The mass of the elevator is 1400 kg. If the elevator starts from rest and is pulled upwards with a constant tension of 18 kN, what will its speed be after moving 6m?

*asked by Anonymous on October 7, 2007* -
## ALGEBRA

Jim began a 281-mile bicycle trip to build up stamina for a triathlete competition. Unfortunately, his bicycle chain broke, so he finished the trip walking. The whole trip took 7 hours. If Jim walks at a rate of 3 miles per hour and rides at 43

*asked by KIERSTEN on August 22, 2016* -
## Language Arts

4. What is the significance of the speech James Otis delivered at the last meeting of the Observers? (1 point) a)Many of the Observers considered Otis to be insane by that time. b)Otis delivered an inspirational speech about the costs of war and the

*asked by Al on January 8, 2015*

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