
physics
Two concentric conducting spherical shells produce a radially outward electric field of magnitude 49,000 N/C at a point 4.10 m from the center of the shells. The outer surface of the larger shell has a radius of 3.75 m. If the inner shell contains an
asked by zandile on August 7, 2013 
physics
A 25kg child on a 2m long swing is released from rest when the swing supports make an angle of 30 degrees with the vertical. (a) Neglecting friction, find the child's speed at the lowest position. (b) If the speed of the child at the lowest position is
asked by Anonymous on October 28, 2007 
Trigonometry
Thank you for the respond!! I appreciate it. But it says on my paper 360 rev/min = 360 (2pi/60) rad/s = 12pi rad/s and so D= 2r = 2(s/theta) = 2(40/12pi) ft = 20/3pi ft = 2.12 ft should be the answer :( I have 2 more if that's alright. A point on the rim
asked by Geee on November 10, 2017 
biology
a biologist prepared a strip of agar (a gelatin like substance) as shown in the figure below. at position 7, he placed a concentrated sample of amino acid A and at position 1, a concentrated sample of enzyme E. E is known to catalyze the conversion of A
asked by jessica cook on January 23, 2011 
Math
Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y. x 7 7 5 5 7 y 95 90 75 85 95 (a) Complete the preliminary calculations: SS(x), SS(y), and SS(xy). Incorrect: Your answer is incorrect. . (SS(x))
asked by Krista on May 30, 2013 
Calculus
An aquarium is to be constructed to hold 2160 in3. The base is to made of slate and the sides of glass. If slate costs 5 times as much as the glass per sq in, find the dimensions that will minimize the cost of constructing the aquarium. I started going
asked by Patrick on November 28, 2014 
physics
A 3 kg block (block A) is released from rest at the top of a 20 m long frictionless ramp that is 5 m high. At the same time, an identical block (block B) is released next to the ramp so that it drops straight down the same 5 m. Find the values for each of
asked by Katelyn on November 2, 2016 
math
Suppose there are 100 rabbits on an island and that the rabbit population can triple every halfyear. Write an equation you could use to find the number of rabbits, R, after t, years. Using your equation, determine the amount of rabbits on the island in
asked by Monica on October 1, 2013 
Physics
Two objects are connected by a light string that passes over a frictionless pulley, and two objects are on either side of the string. There is a hanging object off the vertical side of the incline weighing 10.0 kg. The 3.50 kg object lies on a smooth
asked by JT on October 19, 2011 
Chemistry
"Determine the volume of a 0.925M K2Cr2O7 solution required to completely react with 5.28g of Cu." My attempted method for solving was to convert the 5.28g of Cu to moles, find moles of K2Cr2O7 using the mole to mole ratio, and then use M=mol/L to solve
asked by Jamie on March 26, 2014 
math Subtraction equation
Please help me understanding this Aparasailer is attached by cable to a boat, she wear catches air and raises her into the air when the boat slows down to turn back towards the beach the parasailer chute catches less air and dip 25 meters. She must decent
asked by BJ on December 4, 2014 
physics
A cue ball (mass = 0.145 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick, which applies an impulse of +1.45 N · s to the ball. The ball then slides along the table and makes an elastic headon collision with a
asked by Isabelle on January 19, 2016 
Math (Business)
Find the value of the ordinary annuity at the end of the indicated time period. The payment R, frequency of deposits m (which is the same as the frequency of compounding), annual interest rate r, and time period t are given. amount 1,000;
asked by Braxton on March 1, 2017 
physics
A cue ball (mass = 0.140 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick which applies an impulse of +1.60 N·s to the ball. The ball then slides along the table and makes an elastic headon collision with a second
asked by Anonymous on December 7, 2011 
math pls help!!!!!
these are the few i don't know/im not sure. pls help! The distance from Newtown to Oldtown on the highway is (6x^2 + 2x – 2) miles. Using the back roads, the distance is (5x^2 – 8x – 6) miles. How many miles shorter is the second route? A. 11x^2 +
asked by zumai on May 31, 2014 
Physics
The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a cheetah starts from rest and runs 46 m in a straight line, reaching a final speed of 83 km/h. (a) Determine the cheetah's average acceleration during the
asked by Claire on September 14, 2012 
Chemistry
"Determine the volume of a 0.925M K2Cr2O7 solution required to completely react with 5.28g of Cu." My attempted method for solving was to convert the 5.28g of Cu to moles, find moles of K2Cr2O7 using the mole to mole ratio, and then use M=mol/L to solve
asked by Jamie on March 26, 2014 
Precalculus
Can someone help me with this question? I got the transformation for horizontal shift and vertical shift, however, I don't know how to find the vertical/horizontal compression/stretch. 1. Describe the transformations that were applied to the parent
asked by Melinda on December 10, 2011 
physics
In the figure below, the fresh water behind a reservoir dam has depth D = 13 m. A horizontal pipe 6.0 cm in diameter passes through the dam at depth d = 6.0 m. A plug secures the pipe opening. (a) Find the magnitude of the frictional force between plug and
asked by rock on January 28, 2011 
physics
A cue ball (mass = 0.140 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick which applies an impulse of +1.60 N·s to the ball. The ball then slides along the table and makes an elastic headon collision with a second
asked by s on December 7, 2011 
Math(HELP!)
A farmer has 120 feet of fencing to enclose a rectangular plot for some of his animals. One side of the area borders on a barn. a.) If the farmer does not fence the side along the barn, find the length and width of the plot that will maximize the area? b.)
asked by Amy on October 15, 2015 
PreCalculus
Draw the picture and find the area of the parcel of land. Circle your to partial areas and your total area. You start herman a corn and walk 300 yards due north. Then, you turn N 63 degrees E and walk 260 yards. Then, you turn S 55 degrees E and walk 240
asked by Ash on December 3, 2015 
math/science
I have a right angled triangle hyp=10,and angle=60deg.I need to find how much magnetic field in Tesla passes through the hyp(ie a wire in magnetic field) at this angle.I have tried 10*(sin60deg)=8.66T.My tutor says its 10*(cos60 deg)=5T.The field comes
asked by kyley on February 20, 2009 
Calculus1
You are designing a 1000 cubic cm closed cylindrical can with radius r and height h. Assume that there is no waste in cutting the aluminum for the side of the can, but that the circular top and bottom are cut from square sheets of aluminum 2r by 2r. Find
asked by ACDub on April 9, 2014 
biology
a biologist prepared a strip of agar (a gelatin like substance) as shown in the figure below. at position 7, he placed a concentrated sample of amino acid A and at position 1, a concentrated sample of enzyme E. E is known to catalyze the conversion of A
asked by stella on January 24, 2015 
chem
When 3.517 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 11.59 grams of CO2 and 3.164 grams of H2O were produced. In a separate experiment, the molar mass of the compound was found to be 40.06 g/mol. Determine the empirical
asked by jillian on February 19, 2017 
physics
A dog searching for a bone walks 2.87 m south, then runs 22.5 m at an angle 30.5 north of east, and finally walks 5.91 m west. Find the direction of the dog's resultant displacement vector. Give your answer as an angle in degrees, with the angle measured
asked by Jenna on September 6, 2007 
year 8 maths
Find the amount of the following foreign currencies (to 2 decimal places) that can be bought with 250 Singapore dollars. The sterling pound There is a chart and the pound sells at 2,552,0 for 1 Singapore dollar. The pound is bought at 2,578.0. I did
asked by Maria Chiara on December 11, 2009 
Physics
On a spacecraft two engines fire for a time of 560 s. One gives the craft an acceleration in the x direction of ax = 5.10 m/s2, while the other produces an acceleration in the y direction of ay = 7.30 m/s2. At the end of the firing period, the craft has
asked by Kendra on September 19, 2011 
Math Calculus Word Problem
an 18 inch by 20 inch sheet of cardboard is cut and folded to make a box for the great pecan company. a. write a polynomial funtion to model the volume of the box. how can i graph this? c. the company wants the box to have a volume of 224 cubic inches.
asked by Ashley V on November 8, 2007 
Precalc
The figure shows a 10 x 10 square centered at the origin. The darkershaded square is the image of this square, dilated by a factor of 0.8 and rotated about the origin by exactly the number of degrees, , so that its corners touch the sides of the parent
asked by Grace on January 19, 2012 
Trigonometry
Find cotangent theta given that cosecant theta equals 3.5891420 and theta is in the third quadrant. I was using the trig identity 1+cot^2theta=csc^2theta I wanted to isolate cotangent so I plugged in 1/sin (3.5891420) and then squared my answer. I then
asked by Maddy on February 9, 2015 
statistics
Use Bayes' theorem to solve this problem. A storeowner purchases stereos from two companies. From Company A, 150 stereos are purchased and 7% are found to be defective. From Company B, 900 stereos are purchased and 9% are found to be defective. Given that
asked by Sam on February 26, 2008 
physics
The drive propeller of a ship starts from rest and accelerates at 2.95 103 rad/s2 for 2.05 103 s. For the next 1.90 103 s the propeller rotates at a constant angular speed. Then it decelerates at 2.30 103 rad/s2 until it slows (without reversing
asked by Lola on June 28, 2015 
Math
A parking garage charges a base rate of 3.50 for up to 2 hours, and an hourly rate for each additional hours. The sign below gives the prices for up to 5 hours of parking. Parking rates: 2hrs. $3.50 3hrs. $9.00 4hrs. $14.50 5hrs. $20 Which linear equations
asked by Jessica on January 28, 2018 
physics
The drive propeller of a ship starts from rest and accelerates at 3.00 103 rad/s2 for 2.05 103 s. For the next 1.75 103 s the propeller rotates at a constant angular speed. Then it decelerates at 2.30 103 rad/s2 until it slows (without reversing
asked by Marco on November 10, 2011 
algebra
Find the two consecutive odd integers such that 5 times the first integer is 12 more than 3 times the second. can some explain to me how to get this i was thinking the formula would be ' 5x+12=3x No, that's not it. The second integer is x+2, since it is
asked by laura on March 29, 2007 
mathms sue please
Ms Sue thank you for the help with my other word problem can you check this one for me? Write a word problem and find the solution to the equation. 1/22/3 THe answer is 1/6 and the word problem I created is: Janet put 6 suckers on a table. 3 suckers were
asked by m on October 27, 2010 
physics
The drive propeller of a ship starts from rest and accelerates at 2.90×103 rad/s2 for 2.10×103 s. For the next 1.40×103 s the propeller rotates at a constant angular speed. Then it decelerates at 2.30×103 rad/s2 until it slows (without reversing
asked by Jennifer on March 9, 2015 
calculus
hey can someone help me with these i need help Consider the curve given by x2 + sin(xy) + 3y2 = C, where C is a constant. The point (1, 1) lies on this curve. Use the tangent line approximation to approximate the ycoordinate when x = 1.01. Question 19
asked by hassan on December 17, 2016 
Calculus
I need to find the exact solutions on the interval [0,2pi) for: 2sin^2(x/2)  3sin(x/2) + 1 = 0 I would start: (2sin(x/2)1)(sin(x/2)1) = 0 sin(x/2)=1/2 and sin(x/2)=1 what's next? Ok, what angle has a sin equal to say 1/2 sin (x/2)=1 arc sin (1) = x/2
asked by Jen on August 21, 2006 
physics
A cylinder is fitted with a piston that is connected to the bottom by a spring. The spring has a spring constant of k = 3600 N/m. The cylinder is open to air at the top and is frictionless. The radius of the cylinder is 25 mm and the piston has negligible
asked by jeremy on November 21, 2013 
Physics
A mover has to move a heavy sofa of mass 146 kg to the second floor of the house. He uses a rope to pull the sofa up a ramp from the first to the second floor. As he pulls the sofa he makes sure that the rope is parallel to the surface of the ramp which is
asked by Anna on September 27, 2015 
math
Find the probability of spinning each of the following. /content/media/68058259201285319AM284858430.png 1. P(7) (1 point) 1/7 1/8 3/8 7/8 2. P(not 7) (1 point) 1/7 1/8 5/8 7/8 3. P(a multiple of 2) (1 point) 0.25 0.5 0.625 0.75 4. P(a factor of 12) (1
asked by Jassie on May 12, 2017 
Chemistry
If Kc = 0.143 at 25°C for this reaction, find the equilibrium concentrations of C6H12 and CH3C5H9 if the initial concentrations are 0.200 M and 0.075 M, respectively. a. [C6H12] = 0.041 M, [CH3C5H9] = 0.041 M b. [C6H12] = 0.159 M, [CH3C5H9] = 0.116 M c.
asked by bob on January 30, 2011 
Physics
Three people pull simultaneously on a stubborn donkey. Jack pulls eastward with a force of 93.3 N, Jill pulls with 73.1 N in the northeast direction, and Jane pulls to the southeast with 181 N. (Since the donkey is involved with such uncoordinated people,
asked by James on November 14, 2013 
maths
by equating the coefficients of sin x and cos x , or otherwise, find constants A and B satisfying the identity. A(2sinx + cosx) + B(2cosx  sinx) = sinx + 8cosx I got A = 2, B = 3, which the answers said were correct. However, another part of the question
asked by Candice on October 19, 2012 
physics
Three people pull simultaneously on a stubborn donkey. Jack pulls eastward with a force of 67.3 N, Jill pulls with 98.7 N in the northeast direction, and Jane pulls to the southeast with 133 N. (Since the donkey is involved with such uncoordinated people,
asked by pop on February 13, 2015 
math
Order of Magnitude (I'm not quite understanding it) 1) trying to 0.0000000734 estimated as the product with a single digit power of 10.*No multiple choice* 2) Trying to find the numbers that a greater than 7 x 10^4 (Choose more than one answer type
asked by Anonymous on September 8, 2014 
calculus
A landscape architect wishes to enclose a rectangular garden on one side by a brick wall costing $30/ft and on the other three sides by a metal fence costing $20/ft. If the area of the garden is 2,000 ft2, find the dimensions of the garden that minimize
asked by Anonymous on October 26, 2010 
Calculus
The base of a triangle is shrinking at a rate of 1 cm/min and the height of the triangle is increasing at a rate of 6 cm/min. Find the rate (in cm2/min) at which the area of the triangle changes when the height is 38 cm and the base is 36 cm. I just want
asked by Meghan on April 14, 2018 
math
Develop a unit of learning at the end of which learners should be able to: reduce any angle in the first quadrant of a Cartesian plane to a difference of 90 and an acute angle. I have tried it as follows: 1. write down any three acute angles. 2. draw the
asked by william on February 18, 2016 
MATH
The daily low temperatures during one week were reordered as follows: 2 degrees F, 7 degrees F, 6 degrees F, 3 degrees F, 14 degrees F, 16 degrees F, and 10 degrees F. Explain how you would show a child how to find the average daily low temperature
asked by Monica on May 4, 2014 
Physics
You have been sent in a small spacecraft to rendezvous with a space station that is in a low circular Earth orbit, say, with a radius of 6,720 km, approximately that of the orbit of the International Space Station. Due to mishandling of units by a
asked by Catherine on May 8, 2011 
physics
A cart starts from position 4 (which is 20m above ground) in the figure below with a velocity of 11 m/s to the left. Find the speed with which the cart reaches positions 1, 2, and 3. Neglect friction. speed at position 1 m/s? speed at position 2 m/s? speed
asked by Jacky on February 27, 2012 
Chemistry
There are three isotopes of phosphorus. Only one of them is stable. Calculate the binding energy per nucleon (in MeV) for P32 (atomic mass = 31.9739 u). mass H = 1.007825 u and mass n = 1.008665 u. I multiplied the protons(15) by the mass H, and the
asked by JUNDY on April 30, 2015 
intermediate algebra
A triangle is such that the largest angle is 11 times the smallest angle. The third angle is 27° less than the largest angle. Find the measure of each angle. (Enter solutions from smallest to largest.)
asked by jess on February 5, 2012 
Algebra
One angle in a triangle has a measure that is three times as large as the smallest angle. The measure of the third angle is 10 degrees more than that of the smallest angle. Find the measure of the LARGEST angle.
asked by Seymour on January 27, 2016 
Algebra
One angle in a triangle has a measure that is three times as large as the smallest angle. The measure of the third angle is 10 degrees more than that of the smallest angle. Find the measure of the LARGEST angle.
asked by Arie on January 27, 2016 
Math
The area of a certain state (state 1) is four times the area of another state (State 2). If the sum of their areas is 25,000,000 square miles find the area of each state?
asked by Brittnee on February 19, 2016 
intermediate algebra
A triangle is such that the largest angle is 11 times the smallest angle. The third angle is 27° less than the largest angle. Find the measure of each angle. (Enter solutions from smallest to largest.)
asked by sally on February 5, 2012 
math
A draws a card from a pack of n cards marked 1,2,3,...,n. The card is replaced in the pack and B draws a card. Find the probability that A draws I)the same card as B. Ii)higher card than B.
asked by please help urgently on May 1, 2016 
Calculus
Find the length of the entire perimeter of the region inside r=5sin(theta) but outside r=1. 1=5sin(theta) theta=arcsin(1/5) r'=5cos(theta) I tried the integral between arcsin(1/5) and piarcsin(1/5) of (((5sin(theta))^2+(5cos(theta))^2))^1/2 which gives me
asked by Joe on February 19, 2016 
Physics
The earth's Field is Roughly equivalent to an axial centered dipole. Find the vertical rate of change of the vertical component of the earth's field in gammas/foot here at flagstaff. Given" vertical component of earth's magnetic field at flagstaff is equal
asked by Jessica on April 2, 2013 
Chemistry
The rate law of a reaction, A> B+C is given by the expression: Rate=k, where k=0.0113 mol/L min. If the initial concentration of the reactant is 0.225 mol/L, how long does it take for the concentration to decrease to 0.180 mol/L? I know i have to find the
asked by James on September 14, 2010 
statistics
An experiment with results acquired showed that at the beginning the temperature was 20 degrees and the size of bacteria was 1 mm long. 12 hours later the temperature was 56 degrees and the size of the bacteria was 12 mm long. Create a graph showing the
asked by Anonymous on November 24, 2010 
Science
A sphere of mass 30.0 kg and radius 0.150 m is attached to a point on a smooth vertical wall by a string of length 0.150 m which runs from a point on the surface of the sphere to the point on the wall. Find the tension in the string and the horizontal
asked by Krishna on April 25, 2016 
AICE math
A 30 foot ladder is leaning against a house(see figure). if the base of the ladder is pulled away from the house at a rate of 2 feet per second, the top will move down the wall at a a rate of r= 2x/(sqrt(900x^2) ft/sec, where s ist the distance between
asked by Isabel on November 9, 2013 
statistics
A sample of purchases at the local convenience store has resulted in the following sample data, where x = the number of items purchased per customer and f = the number of customers. x= 1,2,3,4,5 f=8, 20, 8, 8, 7 What does the 20 stand for in the above
asked by Anonymous on September 29, 2012 
Geography
Are the religions universalizing or ethnic in Sweden? What are the most common religions in the country? Traditions/festivals? I couldn't find any traditions or festivals but this is what I have put Lutheranism took hold in Sweden, and it remained dominant
asked by Anonymous on February 7, 2016 
Physics
A popular carnival ride consists of a large, round room that rotates fast enough that any person standing against the wall will be stuck there, even as the floor is dropped away from their feet. The coefficient of static friction between the person and the
asked by Zac on July 26, 2012 
English
I forgot to include the following statements. I hope you can have a look at them, too 1) embarrassed about/at (are the prepositions intercheangable?) I was embarrassed about how untidy my room was/at (about?) having to ask for money/ to ask for money. 2)I
asked by Mike on March 13, 2011 
Physics
GP. A speedboat increases it's speed uniformly from V1=20.0m/s to Vf=30.0m/s in a distance of 200X10^2m. (a) Draw a coordinate system for this situation and label the relevant quantities, including vectors. (b) For the given information, what single
asked by Anonymous on April 22, 2019 
Social StudiesPlease Help!
How did Prince Henry of Portugal contribute to maritime exploration? A) He led many voyages west across the Atlantic in search of the West Indies. B) He encouraged the use of ancient pirate routes to explore and find new land. C) He funded any and all
asked by Don't need to know. Sorry on February 8, 2017 
Physics
I'm stumped: So bringing it back to the top. Hope that's ok! 2 charges, Q1 and Q2, equal magnitude, but different signs (not assigned) lie on a line, x axis, a known distance apart. Segment pq lies centrally on the line, distance apart is known. An
asked by charlie on February 4, 2009 
Research Methodology and Program Evaluation
Good morning. I am having doubts of the answers I have selected the two questions below. Can someone help me? In evaluating the source of information there are __________ questions or criterion one must ask or consider. 1. 3 2. 4 3. 5 4. 6 I selected
asked by Lencho on May 31, 2017 
english literature
hi i can't find any information on the author's writing style of The English patient who is michael ondaatje and a farewell to arms by ernest hemmingway. i need to know what writing structure they use and ideas they used for writing these books. can you
asked by Anonymous on July 30, 2006 
biology
What are invariant amino acids and where are they located? I keep googling it but I cannot find any information just journal articles Thank you for using the Jiskha Homework Help Forum. Since we don't know which links you have tried, here are some thay may
asked by tia on March 17, 2007 
Algebra
Two more Algebra questions : Having some difficulty with these. Drawing a blank on this one, not sure where to start. Find the equation, in standard form, with all integer coefficients, of the line perpendicular to x + 3y = 12 and passing through (9, 5).
asked by John on October 15, 2007 
English
I can't find anything about Puritan Punishment. I am try to figure out what they believed was an effective mean of punishment? I googled it and everything. Does anyone know? http://russell.gresham.k12.or.us/Meling/newcrimeandpunish.html
asked by a/n on February 14, 2007 
physics
Radioactive decay of granite and other rocks in Earth's interior provides sufficient energy to keep the interior molten, to heat lava, and to provide warmth to natural hot springs. This is due to the average release of about 0.03 J per kilogram each
asked by christy on April 1, 2012 
physics
A 35kg lawnmower starts from rest. Its pushed with a force of 127N at an angle 40 degrees below horizontal. After 12s it reaches speed of 0.37m/s. Find acceleration and force of friction. Attempts: Well I figured out Fnormal=343 my multiplying mass by
asked by jamie on November 30, 2014 
Finance
I have a case study to do and I'm not sure how to go about it. I need to find the present value for three different offers, all of which have a 10% rate and ordinary annuities. This is the first offer: $1,000,000 now $200,000 each year for years 6 through
asked by Justin on October 11, 2011 
Science
Paul road his bike from the bottom of his street to his friend’s house at the top of the hill on his street. He knew his PE was 5,000 J and ME was 25,000 J but wanted to find out his KE. What is Paul’s KE energy on his bike ride to his friend’s
asked by Anon on August 21, 2017 
Math
I am a parent and need help with this problem so I can show my daughter how to complete. A recipe calls for 8 cups of flour. The amount of flour is 10 cups less than twice the amount of milk. Write and solve an equation to find the amount of milk in the
asked by Dana on February 1, 2015 
trigo
A space shuttle pilot flying toward the Suez Canal finds that the angle of depression on one end of the canal is 38.25deg and the angle of depression to the other end is 52.75deg. If the canal is 100.6 mi long, find the altitude of the space shuttle.
asked by trigofunctions on August 3, 2010 
Math
A caterer charges a fixed cost for preparing a dinner plus an additional cost for each person served. You know that the cost for 100 students will be $750 and the cost for 150 students will be $1050. Find the caterer's fixed cost and the cost per student
asked by Jessica on April 20, 2009 
English III
☢HELP☢ How is the alchemist by Paulo Coelho a fable? How is the alchemist by Paulo Coelho a fable? A parable? An allegory? I don't know know at all. The story is a nice read . . . but its very hard to decipher. I can't find any passages in the story
asked by Cato on October 29, 2011 
cal
A conical tank (with vertex down) is 12 feet across the top and 18 feet deep. If water is flowing into the tank at a rate of 18 cubic feet per minute, find the rate of change of the depth of the water when the water is 10 feet deep. I got 81/200pi ft/min.
asked by tony on November 2, 2013 
Physics
Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 6.82 m. The stones are thrown with the same speed of 9.83 m/s. Find the location (above
asked by Bryan on September 30, 2012 
Math
A person has a total yearly income of $36,000. The part of thier income spent on transportation is 15%. How do I find the fraction in simplest form that represents the part of thier income spent on transportation? I don't want the answer, just how to get
asked by Mary on June 8, 2008 
finite math
a cellular phone manufacturer randomly selects 5 phones from every batch of 50 produced. if at least one of the phones is found to be defective, then each phone in the batch is tested individually. find the probability that the entire batch will need
asked by Sim on November 24, 2013 
algebra
A motorboat traveling a distance of 225 miles in 5 hours while traveling with the current. Against the current, the same trip took 9 hours. Find the rate of the boat in calm water and the rate of the current. rate of boat___ mph rate of current___ mph
asked by lala on November 27, 2014 
Mathematics
Rolinda’s First five Spanish test scores are 85, 85, 60, 62, and, 59. A. Find the mean the median in the mode of Rolinda’s Spanish test scores. Round your answers tothe nearest tenth if necessary. B. Which of these measures Best supports Rolinda’s
asked by WOW!!!!!! on December 12, 2018 
Calculus
if a penny is dropped from the top of a 320 ft. building, how fast will it be moving when it hits the ground? So we can find the speed of the penny as instantaneous rate of change of height of penny when it hits ground. Instantaneous rate of change of y
asked by kate on June 7, 2017 
Math
A person has a total yearly income of $36,000. The part of thier income spent on transportation is 15%. How do I find the fraction in simplest form that represents the part of thier income spent on transportation? I don't want the answer, just how to get
asked by Mary on June 8, 2008 
Calculus
Consider the function f(x)=3/x. a. Determine an expression, in terms of a and h, for the average rate of change between the points (a,f(a)) and ( a + h, f(a+h) ) for the function . Show all steps needed to find a simplified algebraic expression. b. Using
asked by Anonymous on November 5, 2018 
electrical
A 35 kVA transformer supplies a load of 12 kW at a power factor of 0.45 lagging. Find the percentage of full load the transformer is carrying. If additional unity power factor loads are to be served with the same transformer, how many kW may be added
asked by ram on January 13, 2012 
Calculus
How do I find the range of the integral from 0 to x of sqrt(36t^x)? I know you use the formula for the area of a circle to get the area under the curve so A=pi(6)^2. The area of the whole circle would be 36pi, but since it's a semicircle you divide it in
asked by Anonymous on May 2, 2018 
Math
Find the interest if $ 9,000 is invested at an annual simple interest rate of 8 % for 3 years. Use the formula I = P × R × T , where I is the interest earnings, P is the principal, R is the annual rate and T is the time, expressed in years. (a) $ 216,000
asked by Adam on September 15, 2011
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