
Math sin/cos
On a piece of paper draw and label a right triangle using the given sides, solve for the unknown side and write the trigonometric functions for angles A and B, if a=5 and c=7. I already found side b which equals 2 sqrts of 6. Now I need to find the sin A
asked by Anonymous on March 10, 2007 
Physics
Two lifeguards pull on ropes attached to a raft. If they pull in the same direction, the raft experiences a net external force of 363 N to the right. If they pull in opposite directions, the raft experiences a net external force of 147 N to the left. Draw
asked by Lily on December 10, 2015 
History
I am having trouble finding where I can locate where the veto power is described (about Congress overriding a presidential veto). i think it is in Article one Where can I find information about the House of Representatives having the power to impeach the
asked by Abby on August 27, 2006 
physics
Two lifeguards pull on ropes attached to a raft. If they pull in the same direction, the raft experiences a net external force of 376 N to the right. If they pull in opposite directions, the raft experiences a net external force of 162 N to the left. Draw
asked by allan on December 4, 2014 
Literature
In discussing time, change, and pleasure, Screwtape asserts that "just as we pick out and exaggerate the pleasure of eating to produce gluttony, so we pick out this natural pleasantness of change and twist it into a demand for absolute novelty". Why is the
asked by Scott on March 28, 2011 
Maths
A block of mass 20kg rests on a smooth horizontal ground near to a fixed post, to which it is attached to a light, horizontal rod. The block is pulled away from the post by force PN inclined at 30 degrees to the horizontal. Find in terms of P, the tension
asked by John B on December 2, 2016 
algebra 2
A landscaper is designing a flower garden in the shape of a trapezoid. She wants the shorter base to be 3 yards greater than the height and the longer base to be 7 yards greater than the height. She wants the area to be 295 square yards. The situation is
asked by cj on October 21, 2015 
Chemistry ppm
Hey guys, i have a question about how to figure out how much mass of a compound i need to find 130ppm here is the question. What mass of Fe(NH4)2(SO4)2*6H2O is required to prepare 2.25 L of a 130 ppm iron solution? Now i know that ppm is (mg of desired
asked by John on November 16, 2013 
Modern World History
I searched at Google for timeline crimean war romanovs and these are the results: http://www.google.com/search?q=timeline+crimean+war+Romanovs&rls=com.microsoft:enus:IESearchBox&ie=UTF8&oe=UTF8&sourceid=ie7 =) The Historians argue the Revolution in
asked by Writeacher on January 24, 2007 
algebra
Use the fact that after 5715 years a given amount of carbon 14 will have decayed to half the original amount to find the exponential decay model for carbon 14. In 1947, earthenware jars containing what was known as the Dead Sea scrolls were found by an
asked by Kristina on April 12, 2014 
Precalculus
Find the values of x and y. Matrices.. [4 2 3 5 3 5 2 3 1] TIMES [2 x 5] EQUALS [9 38 y] It is difficult for me to type the matrices in but.... The first matrix is 3x3 consisting of 4,2,3 in the first row.. 5,3,5 in the second row ......2,3,1 in the
asked by Anonymous on May 21, 2014 
Math
A fly starts out 2 meters from a light bulb, flies closer to the light then farther away, 2 meters again. At this point the fly goes toward the bulb again but hits the bulb and flies away. Find a function (it may be piecewise) that gives the distance of
asked by Neelambari on November 14, 2012 
Economics
A market (or industry) demand curve is described by Q = 50 – 0.5 P The firm’s cost function is TC = 10 + 2 Q a. Find the profitmaximizing quantity and price. b. If the industry is regulated in a way that requires it to set P = AC, how much will be
asked by hiten on November 29, 2010 
Physics
A Stone Of Mass 1kg Is Dropped From Rest From A Window 20m Above The Ground.Another Stone Of Mass 0.5kg Is Dropped From A Height Of 5m Above The Ground . If Both Stones Are Dropped At The Same Time,find The Time Interval That That Elapses Between The Two
asked by Lawrenty on March 8, 2016 
Science
1) The vector sum of three vectors gives a resultant equal to zero. what can you say about the vectors? 2) Vector is 3.00 units in length and points along the positive xaxis. Vector is 4.00 units in length and points along the negative yaxis.Use
asked by Sandy on November 19, 2009 
Precalculus
An offshore oil well is leaking oil and creating a circular oil slick. If the radius of the slick is growing at a rate of 4 miles/hour, find the rate at which the area is increasing when the radius is 7 miles. (The area of a disc of radius r is A = πr2.)
asked by Amanda on April 1, 2017 
Physic
1. Evaluate dF/dr when r=10,000, given that F= GmM/(r^2) and that F decreases by 3N/m when r=20,000. 2. The lowest point of a 5 meter long ladder is pulled away from a wall at 0.3 meters/sec. Find the rate at which the angle between the ladder and the wall
asked by Anonymous on March 15, 2015 
math
a company makes and sells sailboats. The company's cost function in thousands of dollars is C(x)=2x+20, and the revenue function in thousands of dollars is R(x)=4x, where x is the number of sailboats. Find and simplify the profit function, P(x). How many
asked by amy on March 17, 2014 
math
The sum of the 3 angles of a triangle is 180 degrees. In triangle PQR, the largest angle is twice the size of the smallest angle. The remaining angle is 16 degrees larger than the smallest. Write and solve an equation to find the size of the smallest angle
asked by jorge on April 5, 2012 
algebra
A person’s maximum heart rate is the highest rate, in beats per minute, that the person’s heart should reach. A person’s age added to his or her maximum heart rate is 220. Write and solve an equation to find the maximum heart rate of a 16year old.
asked by Anonymous on August 30, 2012 
math
A spring with a mass of 4 kg has damping constant 28, and a force of 12 N is required to keep the spring stretched 0.5 m beyond its natural length. The spring is stretched 1 m beyond its natural length and then released with zero velocity. Find the
asked by Marwan on April 24, 2012 
mathematics
A spring with a mass of 4 kg has damping constant 28, and a force of 12 N is required to keep the spring stretched 0.5 m beyond its natural length. The spring is stretched 1 m beyond its natural length and then released with zero velocity. Find the
asked by Marwan on April 24, 2012 
algrebra 1
The area of a rectangle is 128 in². If the length is twice the width, what is the length of the rectangle? A) 64 in. B) 16 in. C) 8 in. D) 4 in. The length of a swimming pool is 22 ft. The width is 40 ft. If the volume of the pool is 2,500 ft³, which
asked by AP on February 3, 2011 
Mathematics
Given solid object is made up of a hemisphere snd a cyinder.the radius of a hemisphere is equal to the radius of a cylinder.The height of a cylinder is 80 cm and the height of the solid object is 94cm.find the total surface area of thst solid object
asked by Bhawana on July 18, 2016 
math, algebra
2a+2ab+2b I need a lot of help in this one. it says find two consecutive positive integers such that the sum of their square is 85. how would i do this one i have no clue i know what are positive integers.but i don't know how to figure this out. Let n be a
asked by sana on January 26, 2007 
Math HELP!
Find the distance from the ferris directly to Butte. The picture is of an right triangle. On the left side length is has 42 mi. on the bottom of the triangle it has 56 mi. on the right side there is not number and at the top corner of the triangle it says
asked by Anonymous on October 22, 2014 
Physics
An athlete finished the 100 meter race in 10sec. What was his average speed? acceleration? Acceleration time? Acceleration distance Help with few questions already got the already got the first two V=d/t =100m/10s =10m/s and Acceleration= VfVi/t
asked by Qin on July 22, 2017 
Math
Mrs Leong took 1 hour to drive 1/5 of a journey from village R to village S.she drove the remaining 180km in 4hr. A) what was Mrs Leong's speed for the first part of the journey? B) how long did she take to travel the whole journey? C) find Mrs Leong's
asked by Da S on March 26, 2012 
algebra
Larry Mitchel invested part of his $32,000 advance at 7% annual simple interest and the rest at 6% annual simple interest. If this total yearly interest from both accounts was $2,050, find the amount invested at each. The amount invested at 7% is.... The
asked by lisa on August 27, 2014 
Physics
1) The vector sum of three vectors gives a resultant equal to zero. what can you say about the vectors? 2) Vector is 3.00 units in length and points along the positive xaxis. Vector is 4.00 units in length and points along the negative yaxis.Use
asked by Aman on November 19, 2009 
Geometry
The surface of a cube is painted red and blue, 3 sides of each. The cube is cut into 27 equal sized smaller cubes. Find both answers to the question, "How many cubes have at least 2 sides painted blue?" and "How many cubes have at least 1 side painted
asked by Cathy on January 24, 2015 
Math: Geometry
The bases of trapezoid $ABCD$ are $\overline{AB}$ and $\overline{CD}$. We are given that $CD = 8$, $AD = BC = 7$, and $BD = 9$. Find the area of the trapezoid. [asy] unitsize(1 cm); pair A, B, C, D; A = (1,2); B = (3,2); C = (4,0); D = (0,0);
asked by I see you have graph paper. You must be plotting something. on November 19, 2015 
stats
The standard deviations s for the annual medical costs 30 heart disease patients was found to equal $1005. Find a 95 % confidence interval for the standard deviation of the annual medical costs for all heart disease patients.
asked by chris on March 31, 2013 
Physics
Three resistance of 8,12, and 24 ohms are in parallel. This combination is in series with another parallel of 10,10, and 20 ohms. The whole combination is then connected to a battery of 16.6 volts. If the current through the 20 ohm resistor is 0.4 amperes.
asked by Mycah on March 13, 2017 
math
There were 15.37 million licensed drivers in Texas in 2009 and 14.54 million in 2004. Find a formula for the number, N, of licensed drivers in the US as a function of t, the number of years since 2004, assuming growth is (a) Linear N(t)= million drivers
asked by Anonymous on February 20, 2015 
Physics
A coordinate system (in meters) is constructed on the surface of a pool table, and three objects are placed on the table as follows: a 5.0 kg object at the origin of the coordinate system, a 12.0 kg object at (0, 2.0), and a 16.0 kg object at (4.0, 0).
asked by Anonymous on November 24, 2010 
math
You are running a fuel economy study. one of the cars you find is blue. it can travel 35 1/2 miles on 1 1/4 of gasoline. Another car is red. It can travel 27 1/5 on 4/5 gallon of gasoline. What is the unit rate for miles per gallon for the blue car? what
asked by kyle on September 10, 2014 
Physics
When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, its frequency is 12Hz. When another object of mass m2 is hung on the spring along with m1, the frequency of the motion is 4Hz. Find the ratio m2/m1 of the
asked by Leanne on November 13, 2011 
Physics
When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, its frequency is 12Hz. When another object of mass m2 is hung on the spring along with m1, the frequency of the motion is 4Hz. Find the ratio m2/m1 of the
asked by Leanne on November 13, 2011 
Maths
The ratio of the number of adults and children during the performance is adults : children = 3:2 .For this performance find the ratio total cost of an adult tickets : total cost of a child tickets. give your answer in its simplest form
asked by Anna on June 27, 2016 
trigonometry
A plane flies due south from an airport for 92 miles, and then turns and goes S63°W for 50 miles. How far is the plane from the airport (to the nearest tenth of a mile)? What direction is the plane from the airport (to the nearest tenth of a degree)?
asked by Crystal on March 7, 2016 
Math
Without looking, George pulls socks from a drawer containing 2 white socks, 3 black socks, and 5 yellow socks. With each pulll, a sock is removed from the drawer and is not replaced. find the probability of drawing a yellow, black, and white sock in that
asked by Meme on January 21, 2015 
physics
a 2646lb car is moving on the freeway at 69 mph. (a) Find the magnitude of its momentum and its kinetic energy in SI units. (b) At what speed, in m/s, will the car's momentum be half of what it is in part (a). (c) At what speed, in m/s, will the cats
asked by chyenne on January 22, 2016 
maths
John wishes to determine the height of a flagpole. He takes a sighting of the top of the flagpole from point P. He then moves further away from the flagpole by 20 metres to point Q and takes a second sighting. Given the angle Q is 28 degrees and angle P is
asked by Shane on June 7, 2014 
Math
Without looking, George pulls socks from a drawer containing 2 white socks, 3 black socks, and 5 yellow socks. With each pull, a sock is removed from the drawer and is not replaced. Find the probability of drawing a yellow, black, and white sock in that
asked by Zion on March 28, 2016 
Grammar
Their are three kids in the room. We have been married for 20 years, and are relationship is as strong as ever. I’m having trouble with my car. Can you give me some advise? The diplomats are doing what they can to restore peace. I know it is important,
asked by Cara on August 29, 2010 
College Algebra
You have a credit card with a balance of $3000. Each month the minimum payment is 2.5% of the balance. The monthly interest rate is 1.5% of the balance. You decide you would like to pay off this card by making the minimum payment each month. You cut up the
asked by Tyler on December 1, 2015 
Calculus
Graph the curve and find its exact length. x = e^t + e^t, y = 5  2t, from 0 to 3 Length = Integral from 0 to 3 of: Sqrt[(dx/dt)^2 + (dy/dt)^2] dx/dt = e^t  e^t, correct? dy/dt = t^2  5t, correct? So: Integral from 0 to 3 of Sqrt[(e^t  e^t)^2 +
asked by COFFEE on June 13, 2007 
physics
A passenger on a stopped bus notices that rain is falling vertically just outside the window. When the bus moves with constant velocity, the passenger observes that the falling raindrops are now making an angle of 18 with respect to the vertical. What is
asked by cassie on September 5, 2011 
Finite Math
John has three coins in his pocket. One is fair, one has two heads, and the third is unbalanced, showing head 60% of the time. John grabs a coin at random and tosses it. Find the probability that: 1) The coin shows a head 2) The coin is regular, give that
asked by Preet on July 21, 2012 
Physics
A 20% efficient real engine is used to speed up a train from rest to 7.0 m/s. An ideal (Carnot) engine using the same cold and hot reservoir would accelerate the same train from rest to a speed of 8.0 m/s using the same amount of fuel. The cold reservoir
asked by Anonymous on June 16, 2016 
Math (PLEASE HELP!)
A ferris wheel has a radius of 13 m. It rotates once every 24 seconds. A passenger gets on at the bottom of the wheel from a ramp which is one metre above ground level. a) If the height of the passenger is measured from the ground, determine an equation
asked by Anonymous on July 13, 2016 
Algebra
Solve the following linear inequality graphically. x+2y
asked by Graphing Help! on June 3, 2007 
Science AZ
Define what is meant by the terms initiative and referendum as they are used in the Arizona Constitution. Please check the Government definition of "initiative" in this online dictionary. http://dictionary.reference.com/browse/initiative Then click the
asked by MIA on August 1, 2007 
statistics
In a sample of 100 steel wires the average breaking strength is 50 kN, with a standard deviation of 2 kN. a. Find a 95% confidence interval for the mean breaking strength of this type of wire. b. An engineer claims that the mean breaking strength is
asked by Don't get it!! :( on October 29, 2011 
math
The price of a small cabin is $55,000. The bank requires a 5% down payment. The buyer is offered two mortgage options: 20year fixed at 7.5% or 30year fixed at 7.5%. Calculate the amount of interest paid for each option. How much does the buyer save in
asked by jessica on September 25, 2015 
Physics
In a hydraulic lift, the radii of the pistons are 2.93 cm and 10.1 cm. A car weighing W = 11.0 kN is to be lifted by the force of the large piston. (a) What force Fa must be applied to the small piston? N (b) When the small piston is pushed in by 10.4 cm,
asked by Akbar on April 9, 2012 
Physics
An ice puck of mass m revolves on an icy surface in a circle at speed v at the end of a horizontal string of length L. The tension in the string is T Find the mass of the puck when the length of the string is 2.2m , string tension is 5.0N , and the
asked by James on March 20, 2014 
trig
Bob is driving along a straight and level road straight toward a mountain. at some point on his trip he measures the angle of elevation to the top of the mountain and finds it to be 23 degrees 42 minutes. he then drives 1 mile more and measures the angle
asked by premadonna on September 12, 2010 
Math (PLEASE HELP!)
A ferris wheel has a radius of 13 m. It rotates once every 24 seconds. A passenger gets on at the bottom of the wheel from a ramp which is one metre above ground level. a) If the height of the passenger is measured from the ground, determine an equation
asked by Anonymous on July 13, 2016 
statistics
A 4 to 7 month old baby sleeps an average of 14 hours per day. At this age, babies sleep patterns follow normal distribution with the standard deviation of 1.6 a) is it unusual for a baby to sleep under 12 hours a day? b) In a random sample of 10 babies of
asked by adriana on November 30, 2014 
Calculus
A Norman window has the shape of a rectangle surmounted by a semicircle. (Thus the diameter of the semicircle is equal to the width of the rectangle.) If the perimeter of the window is 30ft, find the dimensions of the window so that the greatest possible
asked by Anonymous on November 5, 2011 
math 118
The price of a small cabin is $30,000. The bank requires a 5% down payment. The buyer is offered two mortgage options: 20year fixed at 10% or 30year fixed at 10%. Calculate the amount of interest paid for each option. How much does the
asked by Jasmine on May 4, 2017 
Biology URGENT!!!!!!!!!
I can't find how Acrasiomycota and Myxomycota excrete and circulate. I have tried wikipedia and every other thing i could think of. Please Help. http://www.factmonster.com/ce6/sci/A0845543.html http://www.infoplease.com/ce6/sci/A0845543.html
asked by Amanda on April 2, 2007 
Math
Earth is represented on a map of a portion of the solar system so that its surface is the circle with equation x squared + y squared + 8x + 6y  3575=0. A weather satellite circles 0.4 unit above Earth with the center of its circular orbit at the center of
asked by Anonymous on October 2, 2015 
Physic
You hold a uniform, 26.0g pen horizontal with your thumb pushing down on one end and your index finger pushing upward 3.2 cm from your thumb. The pen is 13.9 cm long. Find the two forces. Force of Finger (Answer: 0.553N) Force of Thumb (Answer: 0.299N)
asked by Anonymous on April 30, 2014 
chemistry
When 0.320 moles of NH4Cl is dissolved in 1.00 L of water, the temperature drops by 13.7 degrees C. What is the heat of solution of ammonium chloride? The solution has a density of 1.0012 g/mL and a specific heat of 0.9818 cal/g degrees C. How do you find
asked by anita on April 7, 2010 
algebra
suppose a market research company finds that a price of p=$22, they would sell x=42 tiles each month. If they lower the price to p=$12, then they would purchase the tile and they can expect to sell x=52 tiles in a month. Find the equation of the line for
asked by debby on January 8, 2012 
inter Algebra
A start up computer company can sell 1000 computers if they price them at $500. The number sold will increase by 10 for every $1 decrease in the price. The company has fixed costs of $100,000, and each computer costs $300 to produce. Find the price that
asked by linda on November 14, 2010 
Last Question Physics.
A diagram represents a 5 N force to the North and a 12 N force East acting on an object P of mass 6.5kg. The Magnitude of the Net Force is 13 N  The direction it accelerates is 23 degrees North of East. FIND: (A) If the object has an intial speed of 8
asked by arcos15 on October 9, 2012 
particles of dynamics
A particle is released on the smooth inside wall of cylinder tank at A with velocity v0 which makes an angle β with horizontal tangent. The radius of the tank is r. Find the maximum height above point A reached by the particle, the magnitude of the
asked by shwetal on February 25, 2016 
Math.
How do you find the slope of this inequality (to graph it) x/1485>6? The first thing to do is to determine what type of equation it is and what the solution set is. This is an inequality in one variable so it will only be some subset of the xaxis. We're
asked by Mel on September 7, 2006 
statistics
For this class, the first quiz had a mean of 90.4% with a standard deviation od 16.6%. The homework scores have a mean of 81.7% with a standard deviation of 22.28%. Suppose you scored 90% on quiz one and have a homework total of 84%. A)are the reported
asked by lauren on February 17, 2008 
Math
You order sixteen burritos to go from a Mexican restaurant: seven with hot peppers and nine without. However, the restaurant forgot to label them. If you pick four burritos at random, find the probability that at least two of the burritos you pick have hot
asked by 0zz on April 14, 2015 
Math
Mrs. Fields bought a sapling from a tree farm nursery and observed a linear growth of the sapling over a period of 6 months. She found the height of the sapling, H centimeters, and the time, t months is related by the linear equation H=2(4+3t) a) write an
asked by Kate on September 26, 2017 
Math
A ferris wheel is 30 meters in diameter and boarded in the six o'clock position from a platform that is 10 meters above the ground. The wheel completes one full revolution every 10 minutes. At the initial time t=0 you are in the twelve o'clock
asked by Elizabeth on December 10, 2012 
Physic
A bullet strikes a ballistic pendulum whose target block has a mass of 4kg. The block is observed to rise a distance of 3cm, and the bullet is weighed and found to have a mass of 20g. What is the speed of the bullet when it strikes the block? (Answer:
asked by Anonymous on April 22, 2014 
Math/209
Dimensions of a Box A box is made from a rectangular piece of metal with length 50 inches and width 40 inches by cutting out square corners of length x and folding up the sides. (a) Write an expression that gives the surface area of the inside of the box.
asked by Shay on March 12, 2013 
Math Still Don't Understand!
I do not understand how to work this problem out. I have a series of other questions that are similar, and it would really help me out if someone could help me understand how to work this problem. At the first tricity meeting, there are 8 people from town
asked by Janet on December 5, 2009 
math
The diameter of a hydrogen atom is about 5×10^11 meter. Suppose 8.4×10^8 hydrogen atoms were arranged side by side in a straight line. Multiply these numbers to find the length of this line of atoms. What is the length in scientific notation?
asked by Claire on May 19, 2016 
physics
in a making a graph showing the stretch of a spring: Plot a graph of force vs. stretch. Find the slope. The Slope of the graph is called the spring constant. 1)What does the slope of the graph tell you? 2) If someone had a graph with a slope twice as steep
asked by Kriti on March 16, 2011 
PROBLEM SOLVING IN MATHEMATICS
you have 13 bags of gold wins. out of 13 bags gold coins, there is one bag gold coins lighter. assume that one real gold coins is 10g and the fake is 9g. now, you are given a electronic beam balance. find the most minimum ways to figure out which bag of
asked by alya on September 30, 2011 
Trigonometry
Given that a^2+b^2=2 and that (a/b)= tan(45degee+x), find a and b in terms of sinx and cosx. I don't know what i'm supposed to do, and i don't come to an answer! Help, thanks! my workings: tan(45+x)= (1+tanx)/(1tanx) a/b = (1+tanx)/(1tanx)
asked by Marrion on September 27, 2009 
Trigo
Given that a^2+b^2=2 and that (a/b)= tan(45degee+x), find a and b in terms of sinx and cosx. I don't know what i'm supposed to do, and i don't come to an answer! Help, thanks! my workings: tan(45+x)= (1+tanx)/(1tanx) a/b = (1+tanx)/(1tanx)
asked by Marrion on September 26, 2009 
PROBLEM SOLVING IN MATHEMATICS
you have 13 bags of gold wins. out of 13 bags gold coins, there is one bag gold coins lighter. assume that one real gold coins is 10g and the fake is 9g. now, you are given a electronic beam balance. find the most minimum ways to figure out which bag of
asked by alya on October 1, 2011 
Math (Algebra)
How do I find the greatest common factor of a polynomial? When finding the greatest common factor of a polynomial, can it ever be larger than the smallest coefficient and can it ever be smaller than the smallest coefficient? Please explain.
asked by Lynn on July 26, 2010 
Math
There are 9 red gum balls, 5 green gum balls, 8 yellow gum balls, and 8 blue gum balls in a machine. Find P(green, then yellow) A. 40/900 B. 5/30 C. 8/30 D. 40/870 Is the answer D? Thank you
asked by Sonali on April 8, 2015 
science
An ant travelled along the vector a whose magnitude is 10 meters and direction is 45 degree to horizontal and then moved along vector b whose magnitude is 9 meters and direction is 0 degree with horizontal . Find its displacement
asked by parveez on August 24, 2015 
Geometry Question number 4
If I have BC = 2x + 1, CD = 3x  4 and BD = 22,how do I find the value of x? Do you have a triangle? What kind of triangle is it? Your question is incomplete. Or is this part of a question? It looks like a question I have seen before where the first part
asked by Jim on July 25, 2007 
Voltage
If a transformer has 3,000 loops in its primary coil and 1,500 loops in its secondary coil, how do I find the voltage in the secondary coil if the voltage in the primary coil is 120V? Is there a formula? HELP, please!
asked by Lynda on April 19, 2010 
Integrals Log/Ln
Can you check this please i'm not sure why it's wrong .__. 1) indefinite integral of 1/t *ln(t) dt the t*ln(t) is altogether on the bottom i got ln(ln(x)) + C 2) find the indefinite integral of 1/(sqrt(t)*[12*sqrt(t)]dt sqrt(x) is on the bottom. i got
asked by Erika on May 24, 2013 
math
a 17 foot piece of string is cut into two pieces so that the longer piece is 5 feet longer than twice the shorter piece. If the shorter piece is x feet long, find the lengths of both pieces.
asked by mandy on December 12, 2012 
maths
From a point P on the ground the angles of elevation of the top of the building and of a helicopter, hovering at some height over the top of the building, are 30 degree and 60 degree, respectively. Find the height of the helicopter above the ground
asked by Cute girl on October 11, 2016 
prob. statistics
a survey indicates that 41% of women in the us consider reading as their favorite leisure time activity. you randomly select 4 women and ask them if reading is their favorite leisure time activity. find the probability that exactly 2 of them said yes
asked by tiffany on December 13, 2010 
Math
write a function rule for the area of a rectangle or picture frame that has a width of 22 in less than its length use the function rule to find the area of the picture frame the length is 39 inches
asked by Math on March 7, 2017 
Math
A pyramid is inscribed in a cube whose volume is 52pi cm^3. The volume of a sphere is equal tpo the volume of this pyramid. Find the volume of a second cube whose edge is equal to the radius of the sphere.
asked by Eli on May 30, 2011 
present value
The present value P that will amount to A dollars in n years with interest compounded annually at annual interest rate r, is given by P = A (1 + r) ^n. Find the present value that will amount to $50,000 in 20 years at 8% compounded annually.
asked by Don on July 14, 2008 
physics
in a rocket launching, the height h meter, the rocket reaches after t sec for the moment it was launched is given by h=xtyt the rocket altitude after 2 sec is 40 metres, and after 3 sec is 45 metres. a. find x and y b. altitude rocket after 5 sec
asked by andhryn on January 2, 2011 
Math
Find 2 tangent line equations to the curve y=x^3+x at the points where the slope of the curve is 4. What is the smallest possible slope of the curve? At what xvalue(s)does the curve have this slope? So far I have figured out the derivative of this
asked by Dave on October 5, 2016 
algebra
Plan A cost 30 per year and 2.00 per game. Plan B cost 75er year and 0.50 per game Write a linear equation to find the cost of option A is equal to the cost of option B.
asked by dallia on January 18, 2012
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