
Physics for Engineers
A playground is on the flat roof of a city school, 5.2 m above the street below (see figure). The vertical wall of the building is h = 6.70 m high, forming a 1.5mhigh railing around the playground. A ball has fallen to the street below, and a passerby
asked by Lauryn on September 14, 2011 
chemistry
1. When performing this experiment, a student mistakenly used impure KHP to standardize the NaOH solution. If the impurity is neither acidic nor basic, will the percent by mass of acetic acid in the vinegar solution determined by the student be too high or
asked by anonymous on March 23, 2014 
Calculus volume stuff
Find the volume of the solid obtained by rotating the region bounded y = 16 x and y = 2 x^2 about y =0 Find the volume of the solid obtained by rotating the region bounded about the xaxis by y=4x^2, x =1, and y = 0 Find the volume of the solid generated
asked by Roni on December 4, 2013 
CALCULUS MAJOR HELP!!!!!!
Find the volume of the solid obtained by rotating the region bounded y = 16 x and y = 2 x^2 about y =0 Find the volume of the solid obtained by rotating the region bounded about the xaxis by y=4x^2, x =1, and y = 0 Find the volume of the solid generated
asked by Roni on December 4, 2013 
Physics
You pull downward with a force of 27 N on a rope that passes over a diskshaped pulley of mass 1.3 kg and radius 0.075 m. The other end of the rope is attached to a 0.61 kg mass. Find the tension in the rope on both sides of the pulley. I found that the
asked by Mary on March 21, 2010 
college algebra
At Allied electronics, production has begun on x15 computer chip. The total revenue function is given by. R(x)=47x0.3x^2 and the total cost function is given C(x)=8x+16, where x represents the number of boxes of computer chip produced. A. Find the profit
asked by Anonymous on April 3, 2013 
college algebra
At Allied electronics, production has begun on x15 computer chip. The total revenue function is given by. R(x)=47x0.3x^2 and the total cost function is given C(x)=8x+16, where x represents the number of boxes of computer chip produced. A. Find the profit
asked by Anonymous on April 3, 2013 
MATH!!!!!!
Roger purchases two doughnuts and three cookies at a doughnut shop and is charged $3.30. Sam purchases five doughnuts and two cookies at the same shop for $4.95. All the doughnuts have the same price and all the cookies have the same price. Find the cost
asked by Megan on May 28, 2007 
Physics
A 15kg box is given an initial push so that it slides across the floor & comes to a stop. I the coefficient of friction is .30, a) find Ffr Fg=mg  Fg=15kg(9.8N/kg)=147N Ffr=mu(Fn)  Ffr=.30(147N)=44.1 b) Find the acceleration of the box. Hint: what is
asked by Kayla on May 1, 2017 
Physics
You plan to fly a model airplane of mass 0.655 kg that is attached to a horizontal string. The plane will travel in a horizontal circle of radius 5.50 m. (Assume the weight of the plane is balanced by the upward "lift" force of the air on the wings of the
asked by Anonymous on December 17, 2014 
Physics
You plan to fly a model airplane of mass 0.655 kg that is attached to a horizontal string. The plane will travel in a horizontal circle of radius 5.50 m. (Assume the weight of the plane is balanced by the upward "lift" force of the air on the wings of the
asked by Anonymous on December 16, 2014 
Physics updated
When jumping straight down, you can be seriously injured if you land stifflegged. One way to avoid injury is to bend your knees upon landing to reduce the force of the impact. A 65.3kg man just before contact with the ground has a speed of 7.05 m/s. (a)
asked by Sanz on October 19, 2014 
English
Can anyone help me identify rhetoric, bias, and argumentation in the following video clip?  To find the video clip google : American Rhetoric Movie Speech "Citizen Kane" (1941) and click on the first link.  I have studied
asked by Anonymous on June 18, 2008 
Chem
A 25.0 mL aliquot of a wellshaken and filtered sample of river is pipetted into an evaporating dish. The sample was heated to dryness. Assume the density of the river water was 1.01g/mL. The following data were collected for Trial 1. Complete the data.
asked by James on September 14, 2015 
World history; Check:P
Write a opinion paper on the most significant consequences of the Agricultural Revolution. We have Neolithic Farmers to thank for early settlements, villages and then towns. They made all that happen by dint one one simple factor  food surplus. You don't
asked by Unknown on February 5, 2013 
Chemistry
A 2.75 g sample of the hydrocarbon acetone, CH3COCH3, is burned in a bomb calorimeter with 975 mL of water, initially at 23.50 degrees celsius. The bomb is constructed of 285.0 g of nickel metal having a specific heat capacity of Cp = 0.826 J/ g degrees C.
asked by Kate on September 30, 2007 
Chemistry
A 2.75 g sample of the hydrocarbon acetone, CH3COCH3, is burned in a bomb calorimeter with 975 mL of water, initially at 23.50 degrees celsius. The bomb is constructed of 285.0 g of nickel metal having a specific heat capacity of Cp = 0.826 J/ g degrees C.
asked by Kate on September 30, 2007 
Physics
When the Earth, Moon, and Sun form a right triangle, with the Moon located at the right angle, the Moon is in its thirdquarter phase. Find the magnitude of the net force exerted on the Sun. Find the direction of the net force exerted on the Sun. Give the
asked by Cooper on November 9, 2011 
AP Stats
I generally know how to use the normalcdf function on my calculator, but how to I find the area under a normal curve if there is no lower limit or no upper limit? For instance, we are required to use a calculator on this problem: Find the area under the
asked by Emily on September 13, 2010 
Physics
A 49.5kg skater is traveling due east at a speed of 2.88 m/s. A 72.5kg skater is moving due south at a speed of 6.82 m/s. They collide and hold on to each other after the collision, managing to move off at an angle south of east, with a speed of vf. (a)
asked by Anonymous on March 15, 2014 
algebramiss sue
I need to find and write the equation for the problem. Layla wants to but a smart phone online using a $50 discount coupon along with a 20% discount on the original cost of the phone. Layla can spend up to $150. Write an inequality to find the original
asked by Takisha on October 31, 2016 
College Algebra
Using the 7 steps outlined in section 4.3 of your book, analyze the graph of the following function: R(x) = x^2  49/x^4  16 Step 1: Factor the numerator and denominator of R and find its domain. If 0 is in the domain, find yintercept, R(0), and plot it.
asked by Kameesha on August 7, 2012 
Math Ms. Sue please
1. Given the altitude of lakes in feet: –12, –9, –14, –39, –49, –49, –18, –43, find the mean, median, mode, and range. (1 point) mean = –28.5, median = –29.1, mode = –49, range = 40 mean = –29.1, median = –49, mode = –28.5,
asked by Delilah on March 26, 2013 
physics
1 An object is thrown upward from the edge of a tall building with a velocity of 10 m/s. Where will the object be 3 s after it is thrown? Take g=10ms−2 15 m above the top of the building 30 m below the top of the building 15 m below the top of the
asked by james on February 17, 2014 
physics
A frictionless plane is 15m long and inclined at 39.8 degrees. A sled starts at the bottom with an initial speed of 6.46m/s up the incline. When it reaches the point at which it momentarily stops, a second sled is released from the top of this incline with
asked by sam on December 29, 2010 
College Algebra
find the average weight in pounds of a type of bird of your choice. Use the rational exponent equation L = 2.43 * W^0.3326 to estimate the wingspan L in feet of the bird that weighs W pounds (Rockswold, 2006). Include in your post the type of bird and the
asked by Anonymous on November 22, 2010 
Calculus
A tank contains 2920 L of pure water. A solution that contains 001 kg of sugar per liter enters a tank at the rate 4 L/min The solution is mixed and drains from the tank at the same rate. (a) How much sugar is in the tank initially? (b) Find the amount of
asked by Javier on May 22, 2012 
Statistics
The rate of chlamydia infection was reported as 2.78% in a recent year. Under certain conditions, a preliminary screening test for the chlamydia bacterium is correct 96% of the time. One person is randomly selected from the population. find the true
asked by Mark on March 6, 2013 
Economy/Finance
Over the many sessions I have taught this course, I have seen many posts from FIN110 students saying that they rather take a cash dividend as opposed to a stock dividend. The rationale, I guess, is that if additional stocks are being given to the
asked by Anonymous on June 28, 2006 
Reading
Hibernation One of the mysteries in the world of nature is hibernation. By what process, with the coming of autumn, do some animals go into the deep sleep that sees them through the unfavorable environment of winter? The question has baffled mankind for
asked by BARNETTA on August 16, 2015 
math,correction
Find four solutions for the equation 3x+5y=15 so the equation will turn to be y=(3)/(5)x+ (3) and when i do the table i get these points for the solution (2,4.2),(1,3.60),(0,3),(1,1.8) ok Let me give you a help. Take the slope, denominator. 5. Now make
asked by Jasmine20 on January 26, 2007 
MATH
In a triangle ABC, angle A is 2 times angles C and angle B is 20 degrees less than angle C find the number of degrees in these angles In a triangle ABC, angle A is 2 times angles C and angle B is 20 degrees less than angle C find the number of degrees in
asked by fiaie on August 24, 2006 
calculus
1. A particle moves along the xaxis, it's position at timer given by x(t)=t/(1+t^2), t greater than or equal to 0,where t is measured in seconds and x in meters. a) find the velocity at time t. I am a little confused.. Do I find the derivative by using
asked by Anonymous on November 16, 2014 
Physics
A baseball thrown at an angle of 55.0 degrees above the horizontal strikes a building 16.0 m away at a point 8.00 m above the point from which it is thrown. Ignore air resistance. Find the magnitude of the initial velocity of the baseball (the velocity
asked by Julie on September 19, 2006 
PreCalc/Trig
1. Find all possible values of k so that (3,5), (5,1), and (k,8) are the vertices of a right triangle 2. Find all points with x+2y=0 so that (x,y) is 5 units from (1,4) 3. (f(x+h)f(x))/h for f(x)= 5/(x+2) 4. The frequency of the sound produced by a
asked by Mia on April 17, 2011 
physics
Secretariat ran the Kentucky Derby with times for the quarter mile of 25.2 s, 24.0 s, 23.8 s, and 23.0 s. (a) Find his average speed during each quartermile segment. (b) Assuming that Secretariat's instantaneous speed at the finish line was the same as
asked by Anh on September 19, 2009 
physics
A 20. kg block is placed at the top of a 10. meterlong inclined plane. The block starts from rest and slides without friction down the length of the incline. (A diagram shows a height of 5.0 m, the 10. m length of incline/hypotenuse and the 20. kg block
asked by Sejul on March 20, 2011 
math115
the following scores were recorded on a 200 point final examanation;193,185,163,186,192,135,158,174,188,172,168,183,195,165,183. (A) FIND THE MEAN FINAL examination score (b) find the median final examination score (c) is the mean or median a more useful
asked by Anonymous on June 24, 2009 
Math
A bowl contains pieces of paper with the names of 27 freshman, 33 sophomores, 30 juniors, and 42 seniors. Find the probability of the outcome. Enter your answer as a decimal, rounded to the nearest hundredth. P(junior or senior) = 0.2 An animal is randomly
asked by Beep Beep Im a Sheep on May 22, 2019 
Math
g(x)=(x^2+2x+1)/(x^2x6) 1. Find any holes in the graph of g(x) 2. Find any horizontal or oblique asymptote for the graph. 3. Determine where (if any at all) the graph of g(x) crosses the horizontal or oblique asymptote.
asked by hiroko on November 28, 2013 
Trigonometry Help please
1.If tan theta=3/4 and theta is an acute angle, find cos theta. 2.If sin theta=12/13 and theta is an acute angle, find cot theta.
asked by Ryan on February 12, 2016 
math
For questions 1–4, find the slope of the following graphs. 1. (1 point) 2 –2 – 2. (1 point) 1 –1 – 3. (1 point) 3 – 4. (1 point) 0 1 –1 undefined For questions 5 and 6, find the
asked by lindy on May 2, 2014 
Physics
Ammeter 2 reads 0.15A. a. Find the voltage across the 22ohm resistor? b. Find the voltage across the 15ohm resistor? c. What is the battery voltage? Given: RA = 22OHM RB = 15OHM A1 = 0.20 A A2 = 0.15 A
asked by Priscilla on February 12, 2010 
math
Find the common difference in the outputs to help find the missing outputs in the table. Be sure to show your work. a: 5; 6; 7; 8; 9 b: 3.8; 4.6; 5.4; __; __ (I can't show the table so that's the best i can do. __ = missing outputs)
asked by hhhh on October 23, 2018 
HELP MATH ASAP
For questions 1–4, find the slope of the following graphs. 1. (1 point) 2 –2 – 2. (1 point) 1 –1 – 3. (1 point) 3 – 4. (1 point) 0 1 –1 undefined For questions 5 and 6, find the slope of the line that goes through the following points. 5. (1
asked by Anon on May 4, 2016 
Algebra
How do you find the domain of a function when the number is outside of the paranthesese. Example would be y=(square root of x)+3. I know that to find the domain when the number is under the square root, you have to make the number greater than or equal to
asked by Casey on March 31, 2008 
ALGEBRA
How do you find the domain of a function when the number is outside of the paranthesese. Example would be y=(square root of x)+3. I know that to find the domain when the number is under the square root, you have to make the number greater than or equal to
asked by Casey on March 31, 2008 
algebra
Archers need to use arrows that do not bend easily. The table shows how the weight of an arrow affects its spine or the distance the center of the arrow bends when a certain constant weight is attached. Graph the data in the table to find a linear and
asked by lee on January 8, 2013 
Calculus Help 3 Questions
3.The position (feet traveled) of a car is given by the equation s(t)= 4t2 + 4t. Find the time when the car is going the same speed as its average speed over the interval 0 to 10 seconds. A)t=0 B)t=2.5 C)t=5 D)t=10 E)Never 4. Consider the curve given by x2
asked by Prince@18 on December 18, 2016 
English Please help
i have an essay and ive been researching the topic like for freaking ever and i havent been able to fine anything "scholarly" through collins(my college's) libraries searching databases do you know any scholarly websites..?? Like literally ive been
asked by Jessica on October 9, 2011 
geometry
How do you find the perimeter of a second polygon given just the scale factor of both polygons and the perimeter of the larger polygon? The problem is Two similar polygons have a scale factor of 3:5. The perimeter of the large polygon is 120 feet. Find the
asked by Melanie on February 4, 2012 
Calculus I don't understand
Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. y = 10 x and y = 5 x^2 about y =0 Find the volume of the solid obtained by rotating the region bounded by y=8 x^2, x = 1, and y = 0 , about
asked by Jackie on December 4, 2013 
Physics
An object is located at the point (−3.00m,4.00m,0.00m). A position vector connects this object to the origin. Find the magnitude of the position vector and the angle it makes with the positive xaxis. I know the magnitude is 5.00m, how do I find the
asked by sarah on September 19, 2018 
English
1. Being ill, he played football. 2. Although he was ill, he played football. ( #1 is incorrect. #2 is right. We cannot change #2 into #1. Is that right? Where can we find the explanation about that?) 3. Being ill, he couldn't go to school. 4. Because he
asked by rfvv on August 30, 2016 
Calculus, HELP!!!!!!!!!
A cable runs along the wall from C to P at a cost of $6 per meter, and straight from P to M at a cost of $10 per meter. Let x be the distance from C to P. If M is 8 meters from the nearest point A on the wall where P lies, and A is 18 meters from point C,
asked by Francois on March 3, 2015 
math
how to find the reciprocal?? you flip the reciprocal example (4 over 5 the reciprocal will be 5 over 4. If it is a fraction, switch the numerator with the deniminator. Example: reciprocal of 2/7 = 7/2 = 3 1/2 If it is a mixed number, write it as a fraction
asked by honey dip on November 23, 2006 
Physics
A solid shaft of 65mm outside diameter and a hollow shaft of 85mm outside diameter are connected by 6 bolts with the mean pitch of thread being 155mm. The shear stress due to the torque on the shafts is equal to the shear stress on the bolts. a) Find the
asked by Henri on May 6, 2009 
Physics
Consider a map oriented so that the xaxis runs eastwest (with east being the "positive" direction) and y runs northsouth (with north "positive"). A person drives 23 km to the north, turns and drives 76 km to the east, and then turns north and drives for
asked by Pat on September 11, 2014 
Chemistry
Benzene (C6H6) and toluene (C5H5CH3) form nearly ideal solutions. At 20°C the vapor pressure of benzene is 74.7 Torr and that of toluene is 22.3 Torr. a) Find the equilibrium partial pressures above a solution of 100.0 g benzene and 100.0 g toluene. b)
asked by Chris on November 14, 2013 
8th Grade PreAlgebra
Annabelle and Navene are multiplying (4275)(4372). Annabelle's Work (4275)(4372) = 42 + 375 + 2 = 4577 Navene's Work (4275)(4372) = 42⋅375⋅2 = 46710 Is either of them correct? Explain your reasoning. Those numbers have exponents in them. I've been
asked by Music Lover 14 on September 26, 2016 
MGT 496 Research Project I
I am doing a Action Research Project on a problem within my company that I am employed with. The problem is using manual time sheets and how to resolve this issue. What I need is to find companies that have had problems with manual paper time sheets and
asked by Yolanda on September 17, 2013 
Calculus
Suppose f(x) is a differentiable function with f(1)=2 and f(2)=1. The differentiable function g(x) is defined by the formula g(x)=f(f(x))' A. Compute g(1) and g(2). Explain why g(x)=0 must have at least one solution A between 1 and 2. B. Compute g'(1)
asked by Lin on April 1, 2012 
Chemistry
is there an equation to find mass percent....if know concentration and and final and initial volume of a titration lab? there isnt one then how do you find mass percent? M x L = mols of titrant. From the equation, convert to mols of unknown. Mols of
asked by Natalie on May 7, 2007 
Physics
a 61 kg skier on level snow coasts 184 m to stop from a speed on 12.0 m/s. A) use the work energy principle to find the coefficient of kinetic friction between the skis and the snow. B) suppose a 75 kg skier with twice the starting speed coasted the same
asked by Sarah on June 18, 2009 
applied mechanics
A solid shaft of 65mm outside diameter and a hollow shaft of 85mm outside diameter are connected by 6 bolts with the mean pitch of thread being 155mm. The shear stress due to the torque on the shafts is equal to the shear stress on the bolts. a) Find the
asked by Henri on May 7, 2009 
Calculus
For the function f(x)=104(x^2), find a formula for the lower sum obtained by dividing the interval [0,1] into n equal subintervals. Then take the limit as n>infinity to calculate the area under the curve over [0,1]. I only need help with the first part.
asked by Jenna on May 5, 2009 
Statistics
The number of ships to arrive at a harbor on any given day is a random variable represented by x. The probability distribution of x is as follows. (Give your answers correct to two decimal places.) x 10 11 12 13 14 P(x) 0.37 0.09 0.05 0.14 0.35 (a) Find
asked by Gayle on May 27, 2013 
statistics help
The number of ships to arrive at a harbor on any given day is a random variable represented by x. The probability distribution of x is as follows. (Give your answers correct to two decimal places.) x 10 11 12 13 14 P(x) 0.38 0.1 0.07 0.12 0.33 (a) Find the
asked by Kim5 on June 15, 2013 
graphing!
can someone help me? okay so I am given this : (a) y= x4 (b) y=2x I have to graph this manually and find the intersection. okay so I know how to graphi it right with this formula: y=mx+b okay but is the slope how can you tell and what number is the y
asked by bobby on July 4, 2006 
Maths
A car showroom had 10y cars, 20y motorcycles and 18 vans. In a particular month, 4y cars , 3y motorcycles and 15 vans were sold. a.) Find the total number of wheels on the remaining vehicles in terms of x. b.) If y=21, how many wheels were there? An indoor
asked by Alexander on November 7, 2012 
PHYSICS
QUIZ 1 AND 2, PROBLEM 3 A block of mass M is pulled with a rope that exerts a force of a magnitude F, causing it to slide over horizontal ground with kinetic coefficient of friction μ (use "mu" when you input your answer). The force is applied at angle θ
asked by XYZ on June 29, 2013 
Intro to Probability
two construction contracts are to be randomly assigned to one or more of 3 firms I,II,III. A firm may receive more than one contract. if each contract has a potential profit of 90,000 dollars. find the expected potential profit for firm I. then find the
asked by Amelie on February 23, 2008 
History
If angels were to govern men, neither external nor internal controls on the government would be necessary.Federalist Papers No.51 1:Which of the following supports Madison's belief that internal and external controls on government are necessary? A:The
asked by Anonymous on January 25, 2018 
Physics
George has calculated that he can jump the gorge if the ramp is inclined to 45 degrees, and he attains a speed of 20 m/s. Will George make it? If not, how far short of the other side is he when he drops below the level of the ground?  What
asked by Lucy X on February 23, 2009 
Physics
Hi, here's a problem that I have difficulty with to solve. Block M2, w/c has a 20 kg mass, is on a frictionless table and it is firmly attached to one end of a spring with k = 2.5 N/m. The other end of the spring is anchored to the wall. Another block, M1
asked by Chika on November 2, 2011 
physic
Hi!Question:The helicopter view in the fiure below shows two people pulling on a stubborn mule. Asume that F1 is 110N, and F2 si 70N. The forces are measured in units of newtons(N). a.Find the single force that is equivalent to the two forces shown.
asked by Chan on September 30, 2009 
application of differential equation
An object of mass 100g is thrown vertically upward from a point 60cm above the earths surface with an initial velocity of 150cm/sec. It rises briefly and then falls vertically to the earth, all of which time it is acted on by air resistance that is
asked by maria on March 21, 2015 
math
An object of mass 100g is thrown vertically upward from a point 60cm above the earths surface with an initial velocity of 150cm/sec. It rises briefly and then falls vertically to the earth, all of which time it is acted on by air resistance that is
asked by Meitavelo Himufe on March 20, 2015 
Chemistry
Calculate the mass defect and the binding energy/nucleon of the nuclide 9/4 Be, which has a mass of 9.01218224 amu. The mass of the proton is 1.00726747 amu and the mass of the neutron is 1.00866490 amu. I've gotten this far... mass of proton + mass of
asked by Anonymous on June 8, 2010 
Math
One student studied for 8 years in college and her tuition bills are recorded. Years. One semester tuition 1. 4680 2. 4960 3. 5510 4. 6060 5. 6845 6. 7600 7. 8435 8. 9250 Construct the scatter plot for the data with the scales.choose 3 points,find a
asked by Praphul on December 15, 2012 
Calculus II
Sketch the region R defined by 1 ≤ x ≤ 2 and 0 ≤ y ≤ 1/x3. a) Find (exactly) the number a such that the line x = a divides R into two parts of equal area b) Then find (to 3 places) the number b such that the line y = b divides R into two parts of
asked by Angel Santos on January 30, 2017 
Pre calc
Find all primary solutions (i.e. 0 ≤ θ < 2π ) of the equation cos(2θ ) = 4 − 3 cos(θ ). Find all primary solutions (i.e. 0 ≤ θ < 2π ) of the equation cos(2θ )cos(θ ) = sin(2θ )sin(θ ). Please can somone help and show all work Thank you
asked by Samantha on April 20, 2017 
Pre calc
Find all primary solutions (i.e. 0 ≤ θ < 2π ) of the equation cos(2θ ) = 4 − 3 cos(θ ). Find all primary solutions (i.e. 0 ≤ θ < 2π ) of the equation cos(2θ )cos(θ ) = sin(2θ )sin(θ ). Please can somone help and show all work Thank you
asked by Samantha on April 20, 2017 
physics
Two point charges are on the yaxis. A 3.0 µC charge is located at y = 1.35 cm, and a 2.04 µC charge is located at y = 1.50 cm. (a) Find the total electric potential at the origin (V) (b) Find the total electric potential at the point having
asked by lynette on September 9, 2010 
Physics
A piece of metal weighs 51.8 N in air, 37.2 N in water, and 42.6 N in an unknown liquid. Find the density of the metal. Answer in units of kg/m^3 Find the density of the unknown liquid. Answer in units of kg/m^3
asked by Luma on January 27, 2016 
Math
Find the area for the circle (use 3.14 for pi). Show your work. Round to the nearest tenth. the radius is 23 yd 22. Find the circumference of the circle (use 3.14 for pi). Show your work. Round to the nearest tenth. the raduis is 23 yd
asked by Jman on January 31, 2013 
mathcalculus
Hi i've been struggling over this question for a while. Can anybody help me with this? A body's velocity at the time t sec is v = 2t^3  9t^2 +12t  5 m/sec. Find the body's speed each time the acceleration is zero. ________________________________ What i
asked by manny on October 1, 2007 
Geometry
1. If RST=NPQ, which of the following is true? A) R=P B) R=Q C) T=P D) T=Q
asked by anonymous on December 20, 2017 
Physics
You are driving down a highway at a speed of 20.0m/s when you spot a deer. You quickly slam on your brakes, trying to stop your car in front of the deer. Assume the braking force can be modeled as kinetic friction with a friction coefficient of 0.80. If
asked by K on October 28, 2014 
Geometery
How do I solve this? On my assignment it says find the area inside the square, but outside the circle, given that the radius of the circle is 2 ft. Use 3.14 for ^ I have a picture of a square with a circle in the square, with a base 6 ft. and height 6 ft.
asked by Hayley on March 1, 2007 
algebra
1)Write the expression 9n^6+7n^36 in quadratic form,if possible A.9(n^3)^3+7n^36 B.9(n^2)^3+7(n^2)6 C.9(n^3)^2+7(n^3)6 D.not possible I'm thinking C on this one but im not sure 2)solve b^4+2b^224=0 A.2,square root of 6,square root of 6,2 B.square
asked by Marissa on August 18, 2007 
calculus
Find the points on the curve y= (cos x)/(2 + sin x) at which the tangent is horizontal. I am not sure, but would I find the derivative first: y'= [(2 + sin x)(sin x)  (cos x)(cos x)]/(2 + sin x)^2 But then I don't know what to do or if that is even
asked by CMM on October 24, 2010 
Physics
2 displacement vectors of 15 meters and 10 meters are combined. a.Find the magnitude of the minimum possible resultant and the angle between the vectors. b. Find the magnitude of the maximum possible resultant and the angle between the vectors.
asked by Bailey on September 16, 2007 
Math Prob Stat
The probability that a student in this school has a job is 65%. What is the probability that: A. You ask at least 8 people before you find someone with a job? B. You ask at most 4 people before you find someone with a job? C. Between 15 and 29 people in a
asked by Kate on May 29, 2016 
Statistics in Psychology
Please help me with both of these questions. THANK YOU in advance for your for you help. 13. For the data, 9 5 10 7 9 10 11 8 12 7 6 9 (a) Compute the zscore for the raw score of 10. (b) Compute the zscore for the raw score of 6. 14. For the data in
asked by Annie on February 3, 2014 
Math
Ben and phoebe are finding the slope of a line. Ben chose two points on the line and used them to find the slope, phoebe used two different points to find the slope. did they get the same answer? explain.
asked by Anonymous on February 17, 2016 
Math
The height h in metres above the ground of a projectile at any time t in seconds after the launch is defined by the function h(t)=4t +48t +3 A.) Complete the square to write H in standard form b.) Find the height of the projectile three seconds after the
asked by Sarah on October 27, 2014 
Math word problem
A small circular pool is enclosed in a square. Find the area inside the square but outside the circle? (of the shaded region). There is a picture of a square, which is shaded, around a circle. The circle is touching all four sides of the square and there
asked by Lyndse on December 4, 2009 
algebra
Decreasing cube. Each of the three dimensions of a cube with sides of length s centimeters is decreased by a whole number of centimeters. The new volume in cubic centimeters is given by V(s) = s3  13s2 + 54s 72. a) Find V(10). b) If the new width is s 
asked by Sandra on July 10, 2009 
math (am i correct)
in 1920 the record for a certain race was 46.9 sec. In 1990 it was 45.5 sec. let R(t) = the record in the race and t = the number of years since 1920 1.)find a linear function that fits this data? 2.) use a function to predict the record in 2003 and 2006.
asked by scooby9132002 on June 14, 2009
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