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

97,722 questions, page 716-
## Algebra

The cost of a large pizza is $7.99 plus an additional $0.99 for each topping. Tom ordered a large pizza that cost $10.96. Write and s olve an algebraic equation to find the number of toppings on the pizza.

*asked by Natoutou on March 20, 2016* -
## math

Suppose u want to place 1,000,000 pennies in large coin banks. If u put 50,000 pennies in each bank in witch bank would u find the 678,230th penny

*asked by kayla on September 5, 2012* -
## Algebra

If 3 is subtracted from the numerator of a certain fraction, the value becomes 2/3. If 10 is added to the denominator of the original fraction, the value becomes 1/2. Find the original fraction. Solve the problems by using 2 variables HOW DO I START THIS

*asked by BIBIN on March 25, 2012* -
## Math

a rectangular block 16 cm long has two spare faces. A cube of volume 343 cubic centimetre is cut from the rectangular block. Find the volume of the remaining block. Help me pls^

*asked by 大S on June 4, 2012* -
## algebra

A car dealer recently had a promotion which they gave an 8% discount to the first 50 people through the door. If you are one of those people and the car you are interested in cost $25,300.00, find the discount amount and the new price of the car.

*asked by Duran on April 13, 2016* -
## Math

Andy needs to pay off a loan of $18,000 in 5 years. Find the amortization payment he would need to take each semi-monthly pay period (twice a month) at 6% compounded bi-monthly, in order to pay off the loan.

*asked by Mai on April 22, 2014* -
## algebra

A train can travel 280 miles in the same time that it takes a car to travel 140 miles. If the train's rate is 40 miles per hour faster than the cars, find the average for each.

*asked by Jam on February 20, 2011* -
## math

A student invests two sums of money at 3% and 4% interest, receiving a total of $110 in interest after 1 year. Twice as much money is invested at 4% than at 3%. Find the amount invested at each interest rate. Where do I even begin with this?

*asked by randy on March 13, 2012* -
## algebra

from a base elevation of 6800 ft, a mountain peak rises to a summit elevation of 14478ft over a horizontal distance of 15845 ft. find the grade of peak. the grade of the peak is ___ %

*asked by Kathy on October 7, 2009* -
## Stat

A Bacteria has a doubling period of 8 days. If there are 2250 bacteria present now, how many will there be in 33 days? find the growth rate (Round this to 4 decimal places). Growth Rate___________. There will be _________ Bacteria.

*asked by Bobbie on March 13, 2015* -
## Mathematical Economics and Linear Programming

Using the quotient rule, find the derivation of the following function: a) (ax^2+b)/(cx+d) Here is my work but i need help because am lit bit confuse solution a) (ax^2+b)/(cx+d) df/dx = (2ax)(cx+d)-(ax^2+b) (c)/(cx+d)^2 df/dx =

*asked by Aron on August 12, 2015* -
## business math

using the exact interest method 365 days, find the amount of interest on the following loans, principal is $1,700, the rate is 121/2 percent, time days is 33. what is the exact interest

*asked by Anonymous on July 5, 2013* -
## Probability and statistics

Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to find the probability of x successes given the probability p of success on a single trial.n=22, x=18, p=0.85, q=.15

*asked by Holly on March 22, 2016* -
## Trigonometry

Three forces with magnitudes 75 pound, 100 lb, and 130 pound act on an object at angles of 25 degrees, 55 degrees, and 145 degrees respectively. Find the direction and magnitude of the resultant of these forces.

*asked by Jazmyne Barto on June 11, 2016* -
## Physics

A 4.0-kg block slides down an inclined plane that makes an angle of 25° with the horizontal. Starting from rest, the block slides a distance of 2.5 m in 5.4 s. Find the coefficient of kinetic friction between the block and plane.

*asked by Maddie on June 27, 2016* -
## Will Someone please respond! Chem

How would i find the following? I just need an explanation. I'm stuck. I have many other questions like this and i need to know how to do them. The specfic heat of ice is 2.05 J/g. In a calorimeter, 10.0 g of ice melts at 0oC. The enthalpy of fusion of the

*asked by anonymous on June 22, 2012* -
## math

As^5.V(s)+Bs^4.V(s)+Cs^3.V(s)+Ds^2.V(s)+Es^1V(s)+F.V(s)=1, where V(s) is the transformed transient output voltage. Rearranging the 5th order transient polynomial equation above we have: V(s) = 1 / H(s) where H(s) is a polynomial is a polynomial in s to be

*asked by Ak on April 17, 2016* -
## Calculus

The population (in thousands) of the Tzitzit bird is well described by a function of the form P(t) = ae^kt, where t is the time in years and a and k are constants. If the population was 10 thousand when t-0 and 300 thousand when t=3, determine the

*asked by Billy on October 22, 2012* -
## Calculus

Water is draining from a swimming pool in such a way that the remaining volume of water after t minutes is V = 200(50 - t)^2 cubic meters. Find : (a) the average rate at which the water leaves the pool in the first 5 minutes

*asked by Posul Sioni on May 8, 2016* -
## Elevation and depression

From the top of a tower 60m high, two ships are seen in a direction due south. The angle of depression of the ships from the top of the tower are 45degre and 30degree. Find the distance between the ships

*asked by Prince on August 16, 2018* -
## calculus

A cylinder is generated by rotating a rectangle with perimeter 12 in. about one of its sides.? Express the volume of the cylinder as a function of x. Find the approximate value of x that maximizes the volume. Then give the approximate maximum volume.

*asked by riri on October 19, 2012* -
## math

The ratio of the tens digit to the units digit is 1:4. If the digits are reversed, the sum of the new number and the original number is 110. Find the original number by using a systems of equations with elimination

*asked by misa on September 11, 2008* -
## Maths

Please help me.Iam stuck. Find all the possible values of theta between 0 degree and 360 degree for the following quadratic equation. State the quadrants in which each angle lie. 8 tan^2 theta + 2 tan theta=15

*asked by Shane on May 6, 2013* -
## Trig

Find two values of theta that satisfy the equation. give your answers in degrees (0degrees

*asked by Sue on May 19, 2012* -
## math

PQ is a tower standing vertically on the horizontal ground. from A, the angle of elevation of top P of the tower is 45°. On moving 50 m. up a slope of 15°, the angle of elevation of P is found to be 75° from B. The horizobtal through B is BC. find

*asked by tawheed on February 25, 2017* -
## science

A ball of mass 1 kg dropped from 9.8m height , strikes the ground and rebounds to a height of 4.9m .If the time of contact between ball and ground is 0.1s,then find impulse and average force acting on ball.

*asked by Kundan on September 10, 2017* -
## physical

three displacement vectors of a croquet ball are shown in figure p3.49, where |a| = 20.0 units, |b| = 40.0 units, and |c| = 30.0 units. find (a) the resultant in unit–vector notation and (b) the magnitude and direction of the resultant displacement

*asked by Anonymous on March 12, 2011* -
## Nct

A ball impinges directly on a similar ball at rest. The first ball is reduced to rest by the impact. Find the coefficient of restitution, if 1/5 of the initial kinetic energy is lost by impact

*asked by Nasser on June 25, 2016* -
## physics

(a) Find the potential at a distance of 0.920 cm from a proton. (Note: Assume a reference level of potential V = 0 at r = ∞.) V (b) What is the potential difference between two points that are 0.920 cm and 2.00 cm from a proton? V (c) Repeat parts (a)

*asked by oxygen on October 13, 2013* -
## algebra

I just need to know if my work is correct. I am working in Excel and I need to find the formula for the expense Wages. I am not sure if wages consists of the gross pay or the net pay. Does anyone have any suggestions what it might be? I was thinking it

*asked by Excel on May 25, 2010* -
## Math - Statistics

The proportion of red M&M's made is 0.24. Suppose one took a random sample of 51 M&M's. (a) What is the probability that an SRS of 51 M&M's has as its proportion of red M&M's 0.23 or below? (b) Find the 80th percentile for sample proportions of red M&M's

*asked by Samantha on June 25, 2015* -
## MATH

Suppose you wanted to place 1,000,000 pennies in large coin banks. If you put 50,000 pennies in each bank, in which bank would you find the 678,230th penny?

*asked by FELECIA on August 27, 2012* -
## Moanalua Middle School

One box contains six color cards: two blue, three yellow, and one orange. Another box contains four number cards, numbered 1, 2, 3, and 4. One card is picked at random from each box with replacement. find the probability of blue, then 1.

*asked by Fred on May 18, 2012* -
## Moanalua Middle School

One box contains six color cards: two blue, three yellow, and one orange. Another box contains four number cards, numbered 1, 2, 3, and 4. One card is picked at random from each box with replacement. find the probability of yellow, then less than 4.

*asked by Junior on May 18, 2012* -
## Algebra1

The area of a playground is 221 yd2. The width of the playground is 4 yd longer than its length. Find the length and width of the playground. (Hint: Include correct units in your final answer.)

*asked by Anonymous on May 2, 2010* -
## physics

A beam of light is incident from air on the surface of a liquid. If the angle of incidence is 25.0° and the angle of refraction is 14.0°, find the critical angle for the liquid when surrounded by air. im not sure how to start this problem.

*asked by julie on April 7, 2011* -
## Chemistry

The pressure of a gaseous mixture of NH3 and N2 decreased from 1.50 kPa to 1.00 kPa after the NH3 was absorbed from the mixture. Assuming ideal gas behavior, find the composition of the original mixture.

*asked by Dia B on September 12, 2012* -
## Chemistry

A chemist wants to extract the gold from 15.0g of gold(II) chloride dihydrate, AuCl3 x 2H20, What mass of gold could be obtained from this sample? Also how would you find the molar mass of of 2H20 with the coefficient 2 in front?

*asked by Anonymous on April 5, 2011* -
## science

A neckless weighing 50 g in air, but it wheighs 46 g in water . Assume copper is mixed with gold to prepare the neckless. Find out how much of copper is present in it?(specific gravity of gold is 20 and that of copper is 10)

*asked by arun on May 5, 2010* -
## Linear Algebra 2

This is another question I can't figure out. Given planes pie1 and pie2 defined as: pie1: 2x + 5y - 7x + 2 = 0 pie2: x + y - z + 3 = 0 (b) Give the equation of the line of intersection of these two planes. I only found the answer for (a) where they ask to

*asked by Robert on September 9, 2012* -
## College algebra

A cyclist bikes at a constant speed for 18 miles. He then returns home at the same speed, but takes a different route. His return trip takes one hour longer and is 23 miles. Find his speed

*asked by Anonymous on June 22, 2012* -
## finding online article

I need help finding an article online. It has to be on biomedical engineering related or science related. And the article has to talk about 3D or 2D or 2.5D imaging methods. I found a 2D and 3D article. But I can't find one about a 2.5D imaging sensor or

*asked by Anonymous on November 4, 2009* -
## Chemistry(explain Please)

How would i find the following? I just need an explanation. I'm stuck. I have many other questions like this and i need to know how to do them. The specfic heat of ice is 2.05 J/g. In a calorimeter, 10.0 g of ice melts at 0oC. The enthalpy of fusion of the

*asked by anonymous on June 22, 2012* -
## physics

a grind stone starts from rest and has constant angular accelaration 3rad/s2.(a)find the angular displacement?(b)the angular speed of the grind stone 20s later.?class11 state

*asked by Anonymous on November 5, 2017* -
## Physics M/C Quesion

Two cyclists are travelling at constant speeds around a 400 m track in opposite direction. The speed of Jeff is 1.5 times the speed of Rob. The cyclists find they meet every 20 s. What is the speed of Jeff? A) 9.0 m/s B) 12 m/s C) 13 m/s D) 20 m/s E) 30

*asked by the physics kid on March 3, 2016* -
## Math

How many subsets of a set with 100 elements have more than one element? The answer to your question is the number of all of the subsets minus the number of subsets with just one element. had do you find the perimeter and the area whats the measurment of b

*asked by eric on March 8, 2007* -
## Physics

Three blocks rest on a frictionless, horizontal table (see figure below), with m1 = 8 kg and m3 = 20 kg. A horizontal force F = 101 N is applied to block 1, and the acceleration of all three blocks is found to be 3.5 m/s2. Find m2. What is the normal force

*asked by Lauren on January 25, 2011* -
## physics

10 planks are required to stop the bullet in initial velocity u thickness of each planks is x and all planks are producing equal retardation find the final velocity of bullet after coming out of first plank

*asked by deepica on August 26, 2015* -
## calculus

Consider the function f(x)=3x^2 – 5x on the interval [-4,4]. Find the average slope of the function on this interval. By the mean value theorem, we know there exists at least one c in the open interval (-4,4) such that f’(c) is equal to this mean

*asked by john on March 16, 2012* -
## Math

A vendor bought 10 dozen eggs rate of 22 rupees perdozen six of the eggs were rotten he sold remaining eggs rate of 2.50 rupees per egg find his profit or loss

*asked by Shivreet on September 14, 2017* -
## college,stats/ PLZ HELP:( need it within nxt 6hrs

Among Canadian households, 24% have telephone answering machines. If a telemarketing company contacts 2500 households find the probability that between 625 and 650 households, inclusive, have answering machines.

*asked by Sandra on April 7, 2010* -
## math

A cyclist bikes at a constant speed for 18 miles. He then returns home at the same speed but takes a different route. His return trip takes one hour longer and is 23 miles. Find his speed.

*asked by john on July 23, 2012* -
## Maths

Please help me.Iam stuck. Find all the possible values of theta between 0 degree and 360 degree for the following quadratic equation. State the quadrants in which each angle lie. 8 tan^2 theta + 2 tan theta=15

*asked by Shane on May 6, 2013* -
## Fifth Grade Math

How do you explain how to do this math problem to a child? 7/10 of the U.S. population (175,104,000)in 1991 believed saying A to be true. What is the total population? We are trying to find what the whole population total is. They have given us 7/10 or

*asked by Tiffany T on December 14, 2009* -
## math

In an intelligence test administered to 1000 childrens the average score is 42 and standard deviation 24.find (i)the number children exceeding the score 60. (ii) the number of the children with score lying between 20 and 40.

*asked by noopur on March 2, 2011* -
## Math

in order to find out what the best restaurant is in town you call 25 of your friends at random. what type of survey is this? a- biased b-random c-systematic d-stratified my answer is biased because you may pick at random but they are all still your

*asked by Steve on April 25, 2015* -
## trig

a guy wire reaches from the top of a 125 meter television transmitter tower to the ground.The wire makes a 63' angle with the ground.Find the length of the guy wire.

*asked by gly on January 5, 2015* -
## Calc

nadia is pulling a tarp along level ground with a force of 25 pounds directed along the tarp. If the tarp makes an angle of 50 degrees with the ground, find the horizontal component of the force.

*asked by Tori on March 11, 2013* -
## GEOGRAPHY

If it is 6 am at 30 degrees W, what time is it at 120 degrees W? Each 15 degrees of longitude encompasses about one hour of time. Divide the difference between 120 and 30 by 15 to find your answer. Does this mean to subtract 6 hours from 6 am making it

*asked by Suzanne on October 11, 2006* -
## Math

Solve the proportion: You can find the distance from a thunderstorm by counting the number if seconds between the lighting flash and thunder. For example, if the time difference in 21 seconds, then the storm is 7 km away. How far away is the storm if the

*asked by Amy on January 9, 2016* -
## Algebra

The booster club raised $102 in their car wash. They want to buy $18 soccer balls for the soccer team. Write and solve an inequality to find out how many soccer balls they can buy.

*asked by Zaria on November 12, 2012* -
## physics

Water flows through a horizontal tube of diameter 2.9cm that is joined to a second horizontal tube of diameter 1.5 cm. The pressure difference between the tubes is 7.2 kPa. A)Find the speed of flow in the first tube.

*asked by jazz on December 4, 2011* -
## Math

The denominator of a fraction exceeds the numerator by 7. If 3 is added to the numerator and 1 is subtracted from the denominator, the resulting fraction is equal to 4/5 . Find the original fraction. PLZ SHOW ALL WORK AND HURRY!!!

*asked by Nate on April 27, 2017* -
## Algebra

Abe and Sal left at the same time. They traveled in opposite directions. Sal traveled 50mph faster than Abe. After four hours, they were 400 miles apart. Find Abe's speed.

*asked by Linda on March 15, 2013* -
## laws of motion

a force is applied to a body of mass 0.9 kgs that is at rest the force is applied for a duration of 5 sec and as a result the body covers a distance of 250 m find the magnitude of force

*asked by ruthwik on August 23, 2016* -
## Geometry

A quadrilateral contains two equal sides measuring 12 cm each with an included right angle. If the measure of the third side is 8 cm and the angle opposite the right angle is 120 degrees, find the fourth side and the area of the quadrilateral.

*asked by Karen on February 2, 2015* -
## Calc

nadia is pulling a tarp along level ground with a force of 25 pounds directed along the tarp. If the tarp makes an angle of 50 degrees with the ground, find the horizontal component of the force.

*asked by Tori on March 11, 2013* -
## maths

A large pipe has a diameter of 9.8×10^2cm.Water flows in the pipe at a speed of 5m s^-1.Find the volume in m^3,of water that flows out from the pipe every second,correct to 2 significant fogures.[Take pai as 3.142]

*asked by ashley on January 11, 2014* -
## Statistics

Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to find the probability of x successes given the probability p of success on a single trial. n=21, x=18, p=0.75

*asked by Kasey on June 30, 2014* -
## physics

A hockey puck, mass 0.130 kg, moving at 40.0 m/s, strikes an octopus thrown on the ice by a fan. The octopus has a mass of 0.270 kg. The puck and octopus slide off together. Find their velocity.

*asked by Anonymous on January 9, 2012* -
## Math

Imelda's plane travels at a speed of 350kph in still air. One day, she travels 169km against the wind at the same time it takes to travel 190km with the wind. Find the speed of the wind.

*asked by Raquel on September 14, 2016* -
## Dynamics

A car is traveling with constant velocity of 6m/s is passing thru an intersection when a motorcycle starts to move. The motorcycle move w/ an acceleration of 4m/s Find a) time when the motorcycle overtake the car b) the distance

*asked by Jason on May 10, 2017* -
## math

Suppose you wanted to place 1,000,000 pennies in large coin banks. If you put 50,000 pennies in each bank, in which bank would you find the 678,230th penny?

*asked by Anonymous on August 22, 2011* -
## homefield

There are 9 tennis balls in a box, of which only 5 have not previously been used. Four of the balls are randomly chosen from the box. Let be the number of new balls among the selected ones. (a) Find the probability distribution of : (b) Evaluate the

*asked by osman on March 1, 2013* -
## PHYSICS

Referring to the diagram, if c = 32 and theta is equal to 57.6 degrees, find the difference in the length of sides a and b. Another words determine the length of side a, determine the length of side b, and then subtract b from a (a - b). (For example if a

*asked by JJ on August 26, 2011* -
## Math 2

I'm having a hard time figuring out this question, " There is only one positive number that satisfies the equation (greek letter phe) - 1 = 1 / (greek letter phe) Based on this definition, find the value of phe." Thanks for the help I really appreciate it.

*asked by Person on August 21, 2016* -
## math

the international space station orbits 350 km above earth's surface. earth's radius is about 6370 km.use the pythagorean theorem to find the distance from the space station to earth's horizon.

*asked by tee on February 18, 2012* -
## Math- Calculus

A company offers the following charges: $54 per thousand for orders of 62000 or less with the charge per thousand decreased by 38 cents for each thousand above 62000. Find the order which will make the company's revenue a maximum.

*asked by John on March 24, 2013* -
## trig

To calculate the height of a cliff, a surveyor takes the following measurements. The cliff's shadow is 12m, while at the same time a meter stick has a shadow of 2m. Draw a diagram and find the height of the cliff.

*asked by Chastity on January 23, 2011* -
## Math

Turner measures 3/4 foot of ribbon for a costume.He needs 9 pieces of ribbon with that same length. Fill in the blanks to complete an equation that turner can use to find the total length of ribbon that he needs, in feet

*asked by Anonymous on January 21, 2016* -
## Physics

A 8.38g bullet is fired into a 4.60kg block suspended as in the figure. The bullet stops in the block, which rises 15.0cm above its initial position. Find initial speed of the bullet.

*asked by Jose on February 13, 2013* -
## Business Math

I'm wondering if I got this question right. A car salesman receives a commission of 10% of the selling price of a car. Find the commission the salesperson earns for selling a car for $12,300. The answer I got was $12,3000.

*asked by Bradley on November 5, 2014* -
## PROBABILITY MATH

A batch consists of 12 defective coils and 88 good ones. find the probability of getting two good coils when two coils are randomly selected if the first selection is replaced before the second is made. Help me.. since it would be replaced would the answer

*asked by HM on November 9, 2011* -
## Math 7th

Mrs.Flores bought 5 pounds of cheese. He used 2 1/4 pounds for cheese spread. 1 3/4 pounds for nachos and the rest for sandwhichs. Write a procedue that could be used to find the number of pounds of cheese he used for sandwhiches

*asked by Danny on December 7, 2010* -
## help please math

Andy needs to pay off a loan of $18,000 in 5 years. Find the amortization payment he would need to make each bi-monthly pay period (twice a month) at 6% compounded bi-monthly, in order to pay off the loan.

*asked by dreamkatcher76 on December 4, 2013* -
## Physics

a skier, mass 61 kg is at the top of a hill and starts down with an initial speed of 5m/s. he does no work on the way down, assume that the hill surface is frictionless. find his speed at the bottom of the hill which is 10m below the top.

*asked by S on February 25, 2016* -
## CALCULUS

a bacteria culture grows with a constant per capita growth rate. After 2 hours there are 500 bacteria and after 6 hours the count is 312500, find the initial population and the population after 8 hours

*asked by Sarah on December 9, 2012* -
## PROBABILITY MATH

A batch consists of 12 defective coils and 88 good ones. find the probability of getting two good coils when two coils are randomly selected if the first selection is replaced before the second is made. Help me.. since it would be replaced would the answer

*asked by HM on November 8, 2011* -
## chemistry

1. how many grams are in 5.66 mol of CaC03 (3 is the subscript)? --------------------------------------- mass= 5.66 mol CaCO3 x mass/1 mol CaCO3 How do i finish this off? 2. find the number of moles in 508g of ethanol (C2H6O)? 2 and 6 are subscripts

*asked by STEPHANIE on December 10, 2008* -
## Chemistry

How do I find out I would evaporate all solvent ( dichloromethane) from mixture with water? I have less than 1500 ppm of dichloromethane in water and want to be sure if I evaporate all that stuff at 160 degrees? I got the feeling that iw would evaporate

*asked by Luke on February 3, 2012* -
## AP Chemistry

A 0.3500 MHCl solution was used to titrate a 21.60 mL sodium acetate solution. The endpoint was reached after 25.75 mL of titrant were added. Find the molar concentration of sodium acetate in the original solution.

*asked by Rebecca on February 4, 2018* -
## Math

A company offers the following charges: $54 per thousand for orders of 62000 or less with the charge per thousand decreased by 38 cents for each thousand above 62000. Find the order which will make the company's revenue a maximum.

*asked by John on March 24, 2013* -
## Calc

Find an expression for the function whose graph is the given curve. The top half of the circle x^2 + (y-2)^2 = 4 My final answer is y= 2 +/- sqrt of x-4 However, I circled the positive sign because that's the top half. Is this right? I was not sure whether

*asked by Chelsea on September 15, 2010* -
## math

The acceleration am/s^2 of a particle moving in a straight line is given by a = 18t – 4, where t is time in seconds. The initial velocity of the particle is 2 m/s a) Find the expression for velocity in terms of t b) Determine the time when the velocity

*asked by kudu on February 11, 2015* -
## math

Andy needs to pay off a loan of $18,000 in 5 years. Find the amortization payment he would need to make each bi-monthly pay period (twice a month) at 6% compounded bi-monthly, in order to pay off the loan.

*asked by Lynda on December 3, 2013* -
## Math

A hanging spring is compressed 3 inches from its rest position and released at t = 0 seconds. It returns to the same position after 0.8 seconds. Find: a) the amplitude of the motion b) the period of the motion c) the frequency of the motion

*asked by Anonymous on May 24, 2018* -
## Physics

The largest moon in the solar system is Ganymede, a moon of Jupiter. Ganymede orbits at a distance of 1.07 X 10^9 m from the center of Jupiter with an orbital period of about 6.18 X 10^5 s. Using this information, find the mass of Jupiter.

*asked by Cooper on November 9, 2011* -
## math

suppose you wanted to place 1,000,000 pennies in large coin banks. if you put 50,000 pennies in each bank, in which bank would you find the 678,230th penny?

*asked by anabelle on July 25, 2011* -
## physics

a block is pushed up against the wall. Let the mass of the block be m = 2.8 kg, the coefficient of kinetic friction between the block and the wall be µ = 0.56, and θ = 61◦ . Suppose F = 73 N. The acceleration of gravity is 9.8 m/s 2 Find the force of

*asked by Anonymous on November 18, 2014* -
## Maths

A surveyor stands 200m from the base of a tower on which an Ariel stands. He measures the angle of elevation to the top and bottom of the Ariel as 58 degree and 56 degree. Find the height of the Ariel.

*asked by Nongo on November 15, 2015*

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