Questions Asked on
October 5, 2014

physics
A truck of mass 8912 kg moving at a speed of 66.7 mph has lost its brakes. Fortunately, the driver finds a runaway lane, a gravelcovered incline that uses friction to stop a truck in such a situation; see the figure. In this case, the incline makes an
asked by Anonymous 
Calculus
I have y = sin^2(3^(x)) which I rewrite as y = (sin(3^(x)))^2 I got the derivative using the chain rule as the following y' = 3(sin(3^x))^2 (cos(3x)) (3^(x)(ln(3)) Can anyone confirm whether this is right/wrong? Thanks
asked by Tom 
chemistry
Following oxidationreduction reaction by using the oxidation state method a) O2+H2O+Pb=Pb(OH)2
asked by mathew 
Physics
Two sources of equal amplitude undergo interference the energy at maxima is four times that due to either source is this a violation of the principle of conservation of energy. Explain. Can someone help me summarize a good model answer and further
asked by Ariana 
English
Which of these is an example of direct characterization Treys voice remained calm as he shared the news Taya was well known for her good looks Marcus is shy and has difficulty speaking to a crowd
asked by Sandy 
Physics Resistance
A piece of wire of resistance, R and uniform cross sectional area, A is cut into four equal parts and bundled together to form a thicker wire. The resistance of the bundled wire is: A 16R B 1/4R C 4R D 1/16R It's either 16 or 1/16 im not sureee. So I need
asked by Ariana 
Calculus
Integrate sqrt(x^2 + x) dx I have completed the squares and got x^2x = (x+1/2)^2 1/4 Now i don't know how to proceed, plz help me!
asked by Jamie 
science
what is a adaptation
asked by pranithaa 
chemistry
When 34.1 g of lead reacts with 6.81 L of oxygen gas, measured at 1.00 atm and 25.0°C, 36.1 kJ of heat is released at constant pressure. What is DH° for this reaction?
asked by george 
healthcare statistics
Transcriptionsist B is a full time employee earning10 per hour and annual sallary of 20,800 transcribes 900 lines per day for a total of 234,00 lines per year what is the unit medical transcription labor cost for transciptionist B
asked by Anonymous 
American Government
I need help with the following question I am not sure if the answer is B or C. General Revenue Sharing offers states and localities even greater flexibility than block grants because they? A.are given a blank check. B.are completely unaccountable to the
asked by Molly 
Algebra 1 Check
Hi! Can someone check this and see if they are correct? Thanks! 1.) Which value of x should the expression be further simplified? √(21)x a.) 5 B.) 6 c.) 11 D. 55 My answer: a 2.) 2√43x is show: Which value of x makes the expression equivalent to
asked by Abby 
Math
1.) Which of the following inequalities is true for all real values of x? a.) x^3≥^2 b.) 4x^2≥2x^2 c.) (3x)^2≥4x^2 d.) 2(x3)^2≥2x^23 2.) Which following inequalities is true for all real values of x? a.) x^5≥x^4 b.) 5x^2≥2x^3 c.)
asked by Fiona 
PreCalc
Find (f/g)(x) for f(x)=1/x and g(x)=x^3. Show all work and state the domain of (f/g)(x).
asked by Pat 
Chemistry
c) How many grams of each matter is in 2,0 litres of the following water solutions i) 8,6 til% ethanol solution ii) 22,6 til% glycol solution (1,2ethanediol)
asked by Luiz 
Physics
At t=0 a grinding wheel has an angular velocity of 24.0rad/s . It has a constant angular acceleration of 35.0rad/s2 until a circuit breaker trips at time t = 1.90s . From then on, it turns through an angle 436rad as it coasts to a stop at constant angular
asked by JADE 
Delete
Is it possible to have this question removed? Thanks so much! :) Subject: PreCalc Date: Saturday October 4, 2014 Time: 10:27am
asked by Tori 
Algebra
4 years ago my father's age was 4 times that of my age. At present the sum of my father's age and that of mine is 53 years . What is father's present age.
asked by Jason 
Epidemiology
Consider each of the following scenarios and explain whether the variable in question is a confounder: 1. A study of the relationship between exercise and heart attacks that is conducted among women who do not smoke. Explain whether gender is a confounder.
asked by penelope 
math
A medical researcher believes that the standard deviation of the temperatures of newborn infants is greater than 0.6 degrees. A sample of 15 infants was found to have a standard deviation of 0.8 degrees. At the 0.10 level of significance, does the evidence
asked by Ina 
Social Studies
What was one thing that the Salzburgers established that the other settlers did not? A. Hospital B. School System C. trading post D. tavern I think C??
asked by Amber 
Social Studies
Which of the following was the main focus of Georgians during the trustee period? A. buliding churches B. survival C. making roads D. building schools I'm not sure but I'm going to go with B or A?
asked by Amber 
Social Studies
Which of the following is a positive event of the trustee period? A. defense against Spain B. profitable trade with the Indians C. building houses and public buildings D. All of the Above I think D?
asked by Amber 
Social Studies
Which of the following groups of new settlers in Georgia was pacifits? A. Salzburgers B. Highlands Scots C. Moravians D. Methodists I think C?
asked by Amber 
Social Studies
Which of the following is NOT something that would describe Georgia's first legislature? A. Some members were elected, while other were appointed by the king. B. Men and Women served as members. C. It had an upper and lower house. D. Land ownership was
asked by Amber 
Chem Urgent Help Please!!!!
Chromatography is a powerful analytical technique for separating complex mixtures into their components. Do you think it would be practical to use it on a large scale for preparative purposes? Consider the problems this would involve. You have a product
asked by Layla 
Chem Help Please!
You are carrying out a chemical process according to the equation below. If product C, which is the desired product can decompose to product F, how might you ensure that you stopped the reaction at the optimum point to ensure the maximum yield of C.
asked by Josh 
physics
Superman throws a boulder of weight 1850N at an adversary on the surface of the earth, where the magnitude of the acceleration due to gravity, g = 9.80m/s2 . What horizontal force must Superman apply to the boulder to give it a horizontal acceleration of
asked by Serginho 
AP European History
I have to write an essay and the instructions are Analyze the economic, technological and institutional factors responsible for Western Europe’s domination of world trade from 16501800 I must have 2 examples for each of the three so far I have Economic:
asked by Sandy 
math
a painter earns $15 per hour. what is the minimum number of hours he must work to earn at least $200? write an inequality to represent this situation and solve.
asked by shy gurl 
chem
In a chemical reaction, A and B reacts to form D. C is the intermediate product of this reaction. Percent yield of the reaction A+B>C is 50% and the percent yield of the reaction C>D is 90%. How many moles of D can be produced when 14 moles of A and B
asked by bekah 
Basic Chemical Engineering
Can someone plz give me the link of the process flow diagram of a textile(dyehouse)? I only need to know the procedures of the main components in the dyeing section. Plz help!
asked by Jamie 
CHEMISTRY
Consider the following balanced equation: 2N2H4(g)+N2O4(g)→3N2(g)+4H2O(g) Complete the following table showing the appropriate number of moles of reactants and products. If the number of moles of a reactant is provided, fill in the required amount of the
asked by Run 
english
has anyone read of beetles and angels
asked by help please 
physics
how long will it take the sound of the starting gun to reach the ears of the sprinters if the starter is stationed at the finish line for a 100 meter race? assume that the sound has a speed of about 340m/s.
asked by roger 
physics
a horse is running with an initial velocity of 11m/s and begins to accelerate at 1.81m/s^2. how long does it take for the horse to stop?
asked by roger 
math problem
the school cafeteria serves pizza every sixth day and applesauce every eighth day. suppose that pizza and applesauce are both on today's menu. In how many days will they be together on the menu again?
asked by Anonymous 
ENGLISH
HAS ANYONE READ OF BEETLES AND ANGELS ITS IMPORTANT
asked by HELPPP PLEASE 
physics
Janet Leapverifyar drops from a high dive platform with a horizontal velocity of 2.8 m/s. She lands in the H2O below 2.6 seconds later. a. How high is the platform? b. How far from the base does she land? c. What is her final velocity in the vertical
asked by Delaney 
English
Identify the common noun in the sentence Every year Black Middle School host its annual Spring Fling I thought it was year maybe
asked by Sandy 
english
which of these is an example of direct characterization The students gasped at the teachers tremendous height Mr Lightner is cruel and is no friend to animals Sasha hid the toys Melissa plays tennis I chose the 3rd one
asked by Sandy 
english help please
Can someone please explain to me what I need to look for with possessive nouns I have a tough time with all that stuff
asked by chey 
English check
Which principal part of the verb to teach appears in this sentence. Then she taught me how to cultivate rich and healthy soil and helped me identify which types of plants are best for the environment in my yard. past past participle present present
asked by sydney 
Math
Julie is conducting an experiment where she placed 29.5 mL of water in a calorimeter at 15.0 °C. Then, 2.4 g of A (molar mass = 48.0 g/mol), also at 15.0°C, is added to the water in the calorimeter and the temperature of the solution increases to 28.0
asked by Kelly 
Physics help please
Calculate the allowed wavelengths for the emission of a photon initially in the n=3 state in a hydrogen atom
asked by Sarah 
math
In mathematics class, 30 students received an A on the third test, which is 125% of the students who received an A on the second test. How many students received an A on the second test?
asked by ashley 
education
what is the syllable pattern for legal
asked by mike 
math
2t + 8 greater than or equal to 4(t + 1)
asked by shy gurl 
physics
Two tanks are engaged in a training exercise on level ground. The first tank fires a paintfilled training round with a muzzle speed of 250 m/s at 10.0◦ above the horizontal while advancing toward the second tank with a speed of 15.0 m/s relative to the
asked by Anonymous 
physics
When a water gun is fired while being held horizontally at a height of 1.00 m above ground level, the water travels a horizontal distance of 4.80 m. A child, who is holding the same gun in a horizontal position, is also sliding down a 45° incline at a
asked by taylor 
physics
A diver achieves a horizontal velocity of 3.76 m/s from a diving platform located 6m above the water. How far from the edge will the diver be when she hits the water?
asked by Rachel 
math
If I borrowed $15000 in April 2008 at 6% interest and have paid $150 per month since then, how much have I paid and how much do I owe?
asked by donna 
science
Krebs Circle produces A)NADH and Carbon Dioxide B)ADP and NADP C)Acytol CoA and sugars D)Water and Carbon Dioxide
asked by help 
stats
Suppose that the average amount paid by customers at a grocery store is $80. The standard deviation of the amounts paid is $24. The distribution of the amounts paid is skewed. (Notice that the individuals here are customers and the variable is the amount
asked by Ujash 
physics
A ball on the end of a string is whirled around in a horizontal circle of radius 0.467 m. The plane of the circle is 1.24 m above the ground. The string breaks and the ball lands 2.49 m away from the point on the ground directly beneath the ball’s
asked by Joan 
science
The outcome of the Calvin Cycle is A)synthesis of sugars B)Production of pyruvate C)Capture of energy from sunlight D)Breakdown of complex molecules and the subsequent release of energy
asked by bailey 
science
The muscles of a very active organism would contain more mitochondria than the muscles of a less active organism. Select one: True False
asked by mike 
physics
An automobile traveling along a straight road increases its speed from 89 ft/s to 104 ft/s in 180 ft. If the acceleration is constant, how much time elapses while the auto moves the 180 ft? Answer in units of s
asked by Confused Student 
chem
Consider the unbalanced chemical reaction Al + Cl2 → AlCl3. How many moles of AlCl3 can be obtained from 360 grams of Cl2? (Molar masses: Cl = 35.45 g/mol, Al = 26.98 g/mol) when i balance the equation i get 2Al+3Cl2>2AlCl3 but when i try to figure out
asked by bekah 
Math
How would you solve this function algebraically. f(x)=5v4x+4+2?
asked by Lanie 
science
During the process of photosynthesis, plants capture the kinetic energy of moving photons and transform it into potential energy in the form of Select one: a. pyruvate. b. chemical bonds. c. stroma. d. thylakoid disks.
asked by mike 
Chemistry
a) A sprinter must average 24.0 mi/h to win a 100m dash in 9.30 s. What is his wavelength at this speed if his mass is 84.5 kg? b) For potassium metal, the work function W (the minimum energy needed to eject an electron from the metal surface) is 3.68 ×
asked by Adam 
Science help!
Compounds with high melting points have _____. covalent bonds metallic bonds ionic bonds no chemical bonds 4. Which of the following is NOT a characteristic of minerals? crystalline structure formed by inorganic processes definite chemical composition
asked by Anonymous 
CHEM, HELP!!
1. If the energy of a photon is 1.32 × 10^18 J, what is its wavelength in nm? 2. The energy of an electron in the hydrogen atom is determined by what?
asked by Benjamin 
Chemistry Help! (Rydberg Equation)
a) According to the Rydberg equation, the line with the shortest wavelength in the emission spectrum of atomic hydrogen is predicted to lie at a wavelength (in nm) of _____ b) According to the Rydberg equation, the longest wavelength (in nm) in the series
asked by Christian 
Math
4X^2+4y^28X20y+13=0
asked by Katelyn 
Physics
A child on a sled is initially at rest on an icy horizontal surface. The sled is pushed until it reaches a final velocity of 7.00 m/s in a distance of 11.2 m. The coefficient of friction between the ice and runners of the sled is 0.200, and the weight of
asked by Rose Foley 
Physic
A baseball of mass m and initial speed v strikes a catcher's mitt. If the mitt moves a distance Δx as it brings the ball to rest, what is the average force it exerts on the ball? Express your answer in terms of the given quantities. Could someone help me
asked by PhuCuong 
Statistics
1. If we wish to have a 95% confidence interval, what would be the value of the confidence coefficient? & Consider a sample mean (xbar) of 46 calculated from a sample of size 51 drawn from a population of over 1000.
asked by Rabbitt 
Science3 questions.
1. Which of the following is not considered to be a rock? coal sandstone pumice lava 2. Which of the following is not one of the three types of rock? igneous magma sedimentary metamorphic 3. The three types of rocks are classified by _____. color grain
asked by Anonymous 
Math
Lyle is putting his videotapes on a shelf.the shelf is 12 inches long.if each videotape is 1 1/2 inches wide,how many videotapes can he put side by side on the shelf?
asked by Louis 
US History
Why was seven years of war a turning point in British colonial society and their relationship with England? Please give me 4 different reasons.
asked by Rachel 
comp1
Contrast/comparison on the Parent Trap and the Remake of the Parent Trap I need help asap.
asked by Carolyn 
Biology
Which heart beat measurement is most indicative of your general health? i think it is your resting heart beat, but im not sure the reason
asked by Anonymous 
math
The equation of line l is 3x4y=24. the line intersects the x axis at A and the y axis at B. GIVEN THAT M is the point (4,3) and O is the origin . find the length of AB .
asked by asif 
calculus
Implicit diff. y^2 + 4xy +4y^2=40 2yy'+ _______ + 8y*y=0 I am confused with the 4xy. Would you write this out to be 4x*y'+4y OR 4x*4y' + 4y*4x'? Please help
asked by Annette 
physics
A ball on the end of a string is whirled around in a horizontal circle of radius 0.33 m. The plane of the circle is 1.26 m above the ground. The string breaks and the ball lands 2.4 m away from the point on the ground directly beneath the ball’s location
asked by cd 
Physics
A particle undergoes three displacements. The first has a magnitude of 15 m and makes an angle of 40 ◦ with the positive x axis. The second has a magnitude of 6.2 m and makes an angle of 158 ◦ with the positive x axis. After the third displacement the
asked by Robert 
chemistry
how many grams of zinc chloride could be formed from the reaction of 3.57 g of zinc with excess HCL
asked by Anonymous 
English
What is the theme or message of the poem The Bull Moose by Alden Nowlan? i know the poem is a reference to the crucifix of Jesus but i am not sure about the theme
asked by Anonymous 
Chemistry
In chemistry, we did a lab in which we had a certain mass of copper, performed multiple experiments on the copper, and at the end, extracted the copper from a solution and weighed it. The goal was that the mass of the final copper should be the same as the
asked by melbell 
English
What tenses are used in children's books. Present or past. If both, which is used more often?
asked by Illy 
chemistry
What is the percent mass of calcium in a calcium supplement if 1.06 g of calcium carbonate is extracted from a 2.82 g pill
asked by Mimi 
Science
We are having a debate in Science class. We are each given two questions to debate each other. 1. The Climate is mainly influenced the by the sun? 2. The earth has been warmer in the past?
asked by Laila 
english
If an author is skillful at representing the point of view and attitudes of a hobo, a nurse, a corporate CEO, and a variety of other diverse characters, the author is demonstrating
asked by Nicole 
Chemistry
A sprinter must average 24.0 mi/h to win a 100m dash in 9.30 s. What is his wavelength at this speed if his mass is 84.5 kg?
asked by Danny 
cobet, maths
there are 50 pupils in a class. 43 of them like mathematics, 38 like english and 33 like both mathematics and english. How many pupils like both mathematics and english??
asked by pjl 
Biology
Which heart beat measurement is most indicative of your general health? i think it is your resting heart beat, but im not sure the reason
asked by Michelle 
physics
A cart released from rest at the top of a track 90. cm long takes 4.00 seconds to reach the bottom. determine the velocity as the cart reaches the bottom of the track
asked by Anonymous 
probability;math
A card is chosen at random from a deck of 52 cards It is then replaced and then a second card is chosen.What is the probability of choosing a jack and then an eight?
asked by jennifer 
solve long divison polynomials
5x6/10x^27x6
asked by Anonymous 
english
I have to use end notes for a project I am doing on a famous dead person. I am using information from the person's medical record and diaries and such. But I am not using direct quotes but just a few pieces of information here and there. Ex: William was
asked by lilly 
math
At noon, ship A is 20 nautical miles due west of ship B. Ship A is sailing west at 24 knots and ship B is sailing north at 25 knots. How fast (in knots) is the distance between the ships changing at 5 PM? I have tried multiple times but keep getting
asked by Sara 
Math
Solving long division polynomials 5x6/10x^27x6
asked by Jeannette 
Chem HELP!!
Which one of the following sets of quantum numbers can correctly represent a 3p orbital? a) (n = 3 l = 1, ml = 2) b)(n = 1, l = 3, ml = 3) c) (n = 3, l = 2, ml = 1) d) (n = 3, l = 1, ml = 1) e) (n = 3, l = 0, ml = 1)
asked by Eric 
computer literacy
The Internet is BEST described as a vast _______ connection of computer networks that also link to smaller networks.
asked by ladyk262002 
Chem 1330
Which set of quantum numbers(n, l, ml, ms) could describe the highestenergy electron in a groundstate potassium ion, K? a) (4, 1, 1, 1/2) b) (4, 1, 0, 1/2) c) (4, 0, 1, 1/2) d) (4, 0, 0, 1/2) e) (4, 1, 1, 1/2)
asked by France 
Physics gr. 12
Rick and Glen are cornered by zombies as they tend to be in each episode. In this particular episode, Glen fires a grappling hook with a rope attached up to the roof of the building they are standing beside. Glen takes a quick look at the bag the rope came
asked by Luna 
Physics
A block of mass m = 4.30 kg slides along a horizontal table with speed v0 = 8.50 m/s. At x = 0 it hits a spring with spring constant k = 31.00 N/m and it also begins to experience a friction force. The coefficient of friction is given by μ = 0.150. How
asked by Olivia 
statistics
A poll asked 500 adults if they thought Ontario should produce more, less or maintain current production of ethanol. 160 people responded "more ethanol production" 136 people responded "less ethanol production" 155 people responded "maintain current
asked by anon 
Physics, Help!! URGENT!!!
A sprinter must average 24.0 mi/h to win a 100m dash in 9.30 s. What is his wavelength at this speed if his mass is 84.5 kg?
asked by Grant 
Math
A uniform bar 1.100 metres in length and having a cross sectional area of 19.500cm square is subject to a loading of 5050.000 newtons. This load causes an extension to the bar length of 2.610mm.Calculate the stress and strain produced
asked by Barry Morgan 
SS
New France is _____ of the Appalachian Mountains.
asked by Anon 
MicroEconomics
Suppose that the government imposes a tax on heating oil. 1. Would the deadweight loss from this tax likely be greater in the first year after it is imposed or in the fifth year? 2. Would the revenue collected from this tax likely be greater in the first
asked by Ann 
phi 208
To check my reading week 4 quiz
asked by Jessica 
Physics
During baseball practice, you go up into the bleachers to retrieve a ball. You throw the ball back into the playing field at an angle of 42° above the horizontal, giving it an initial velocity of 15 m/s. If the ball is 5.3 m above the level of the playing
asked by Han 
Math
A 5" by 7" picture is enlarged to 8" x 10". By what percent did it's area increase?
asked by Jenny 
Math Gr 12
Using proper notation, describe the end behaviour of y = 1  + 3 X2
asked by Victoria 
Math
If the side of a square is doubled in size to 8", by what percent did it's area increase?
asked by Jenny 
English.
What is another strong way of saying : Yes, I would recommend this book to a friend.
asked by Sally 
Math
In a parking lot 16% of the cars are blue. There are 4 blue cars in the lot. How many cars are not blue? 4x100=400\16= 25 then minus 4 blue cars to get the answer that 21 of the cars are not blue. I know the answer is 21 I'm just not sure if the work is
asked by Megan 
Math
Water is leaking out of an inverted conical tank at a rate of 0.0109 {\rm m}^3{\rm /min}. At the same time water is being pumped into the tank at a constant rate. The tank has height 9 meters and the diameter at the top is 4.5 meters. If the water level is
asked by Leah 
Geography
Should geographers regard culture and social customs as generalizations about a group of people, or should they say it comes from people's interaction with the physical environment?
asked by Ashley 
Math
A sixth grader weighs 90 pounds which is 120% of what he weighed in 4 th grade. How much did he weigh in 4th grade? 90x100=9000/120= 75 So he weighed 75lbs is this correct?
asked by Megan 
geography,maths literacy,lifesciences,tourism
What career must I take when doing these subjects or what course must I do at tertiary?
asked by zanele 
Finance
Interest rates on 2year Treasury securities are currently 5.00%, while 5year Treasury securities yield 10.00%. If the pure expectations theory is correct, what does the market believe that 3year securities will be yielding 2 years from now?
asked by Morgan 
Math
A spherical balloon is to be deflated so that its radius decreases at a constant rate of 12 cm/min. At what rate must air be removed when the radius is 5 cm? Must be accurate to the 5th decimal place. It seems like an easy question but no matter how many
asked by Leah 
Math
A conical water tank with vertex down has a radius of 10 feet at the top and is 22 feet high. If water flows into the tank at a rate of 30 {\rm ft}^3{\rm /min}, how fast is the depth of the water increasing when the water is 14 feet deep? I have tried
asked by Sarah 
Chemistry
What volume of 0.1000 M oxalic acid (a diprotic acid) would be required to completely neutralize 100.00 mL of 0.1000 M NaOH?
asked by Anonymous 
US History
Although the New England, and the Chesapeake region were both settled largely by people of english orgin, by 1700 the regions had evolved into 2 distinct societies. Why did this difference in development occur?
asked by Ashley 
Chemistry
Naturally occurring copper is a mixture of two isotopes. One of these has 34 neutrons the other has 36. If the relative atomic mass of copper is 63.55 amu calculate the natural abundances (percentages ) of the two isotopes.
asked by Rose 
Math Check
Hi! Can someone check this and see if they are correct? Thanks! 1.) Which value of x should the expression be further simplified? √(21)x a.) 5 B.) 6 c.) 11 D. 55 My answer: a 2.) 2√43x is show: Which value of x makes the expression equivalent to
asked by Abby 
Chemistry
The boiling point of diethyl ether CH3CH2OCH2CH3 is 34.500C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in diethyl ether is cholesterol . How many grams of cholesterol, C27H46O (386.6 g/mol), must be dissolved in 208.0 grams of diethyl
asked by Charlotte 
ALGEBRA
The table below shows two equations: Equation 1 3x  1 + 7 = 2 Equation 2 2x + 1 + 4 = 3 Which statement is true about the solution to the two equations? Equation 1 and equation 2 have no solutions. Equation 1 has no solution and equation 2 has
asked by HELP PLEASE 
Math
Water is leaking out of an inverted conical tank at a rate of 0.0109 {\rm m}^3{\rm /min}. At the same time water is being pumped into the tank at a constant rate. The tank has height 9 meters and the diameter at the top is 4.5 meters. If the water level is
asked by Elizabeth 
Physics
A bird watcher meanders through the woods, walking 1.10 km due east, 0.624 km due south, and 1.09 km in a direction 18.2 ° north of west. The time required for this trip is 1.046 h. Determine the magnitudes of the bird watcher's (a) displacement and (b)
asked by Candice 
Math
A spherical balloon is to be deflated so that its radius decreases at a constant rate of 12 cm/min. At what rate must air be removed when the radius is 5 cm? Must be accurate to the 5th decimal place. I keep getting 3769.91118. What am I doing wrong?
asked by Lucy 
Math
What is the linear approximation of the square root of 8.9? Must be accurate to the fifth decimal place. I have tried everything it seems like yet cannot get the right answer.
asked by Amber 
SOC 101
Checking my Answers: 1. The Sociological insight can provide which of the following: (Points : 1) Knowledge of group behavior Insight into individual behavior Increased understanding of differences *All of these choices Question 2. 2. Which is the best
asked by anonymous 
Math
A conical water tank with vertex down has a radius of 10 feet at the top and is 22 feet high. If water flows into the tank at a rate of 30 {\rm ft}^3{\rm /min}, how fast is the depth of the water increasing when the water is 14 feet deep? I have tried
asked by Sarah 
programming
Write a MATLAB program to create and output the touchtone telephone signals (DualTone, MultiFrequency, DTMF) for the input numbers 0 through 9 (disregard the * and # symbols). When a user presses a button on a telephone set, a signal is produced that is
asked by Amanda 
Chemistry
What volume of 0.1000 M oxalic acid (a diprotic acid) would be required to completely neutralize 100.00 mL of 0.1000 M NaOH?
asked by Anonymous 
statistics
if you roll a single die and count the number of dots in top what is the probability of getting a number less then 3 on a single throw
asked by gretchen 
Physics
A stuntmotorcyclist wants to jump over a row of cars that is 94 meters long. In order to clear the cars, how fast must he be going when he hits a ramp that is inclined 30 degrees? Work so far: Delta x= 94m Ax= 0 m/s2 Ay=9.8 m/s2 Trying to find: V initial
asked by 2016 
Reading
Can I use a semicolon in this sentence? She is the best observer;she had months to form the conclusion.
asked by Monette 
Statistics
You roll two fair dice a blue one and a yellow one what is the probability of and odd on the blue die and 5 or 6 on the yellow die
asked by gretchen 
finding the interest
Cesar purchased a room air conditioner for $450 and made a a down payment of $90 and financed the rest over 20 months. If the monthly payment was $22.80, what was the interest?
asked by Leslie 
9th grade algebra
An Electrician Charges $120 After 2 Hours Of Work And $190 After 4 Hours Of Work. Write A Linear Model That Represents The Total Cost.
asked by Amanda 
Math
What is the linear approximation of the square root of 8.9? Must be accurate to the fifth decimal place. I have tried entering 2.98328 but that does not appear to be correct.
asked by Amanda 
math
there are 32 boys and 24 girls. what re the various number of teams that can be made that would have the same number of boys and girls on each team?
asked by john 
Math
The bookseller sells packages of 15 pens each and 12 pencils each.they want the same number of pens and pencils in their next order.find the smallest number of packages
asked by Ri 
Math
A street light is at the top of a 17 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 8 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 30 ft from the base of the pole? Must be accurate to fifth
asked by Leah 
Math
What is the linear approximation of the square root of 8.9? Must be accurate to the fifth decimal place. I have tried entering 2.98328 and 2.98328 but that does not appear to be correct. Please help!!
asked by Amanda 
English
Okay, in school we just finished "To Kill A Mockingbird" and we have a sort of questionnaire thing to do. One of the questions is "Who symbolizes the "gray ghost" and why?" I have my suspicions that it is Arthur "Boo" Radley but I would really like to make
asked by Darlene 
arithmetic
vanessa buys a strip pf 25 postage stamps. The strip of stamps is 21 7/8 inches long. How long is a strip after one stamp is used.
asked by Anonymous 
Math
The circumference of a sphere was measured to be 74.000 cm with a possible error of 0.50000 cm. Use linear approximation to estimate the maximum error in the calculated surface area. Estimate the relative error in the calculated surface area. Must be
asked by Victoria 
Math
Find the linearization L(x) of the function g(x) = xf(x^2) at x = 2 given the following information. f(2)=1 f'(2)=8 f(4)=4 f'(f)=3 L(x)=
asked by Victoria 
biology
Describe Charles Lyell's geological theory about uniformitarian
asked by Anonymous 
Math
For the equation given below, evaluate dy/dx 3y^23x^2+9=0 at the point (2,1)
asked by Quade 
PHI208
According to Aristotle, happiness is: 1)a contented state of mind. 2)as much pleasure and as little pain as possible. 3)feeling good about oneself. 4)a life that is lived well
asked by Danelle 
math
Leah picked 2.6 pounds of blackberries. Ashlyn picked 1.8 times as many pounds of blackberries. How many pounds of blackberries did Ashlyn pick?
asked by Ann 
physics
a projectile is dropped from the top of a building  it falls 1900 ft prior to reaching the ground. determine the magnitude of the acceleration in ft/second squared to the nearest tenth. Question 1 options:
asked by suzanne 
math
Max had 4/5 bag of trail mix. He divided the trail mix equally amoung 5 friends. What fraction of the full bag of trail mix did each friend receive?
asked by Ann 
chemistry
A pure gold ring with a volume of 1.88cm3 is initially at 18.4∘C. When it is put on, it warms to 34.3∘C.
asked by Anonymous 
Chemistry
The oxidation of iodide ion by arsenic acid, H3AsO4, is described by the balanced equation 3I−(aq)+H3AsO4(aq)+2H+(aq)→ I3−(aq)+H3AsO3(aq)+H2O(l) If −Δ[I−]/Δt = 4.8×10−4M/s , what is the value of Δ[I3−]/Δt during the same time interval?
asked by Joe 
Math
Mitchell is hired to paint on a wall with the area of 21 1/8 of square yards. If the wall is 3 1/4 yards long, what is the width?
asked by Amy 
Math
For each of the following questions, choose the correct answer. Which statement best describes inductive reasoning? A It uses previously proven or accepted properties to reach a conclusion. B It uses observation of patterns and past events to reach a
asked by Skye 
Chemistry
The oxidation of iodide ion by arsenic acid, H3AsO4, is described by the balanced equation 3I−(aq)+H3AsO4(aq)+2H+(aq)→ I3−(aq)+H3AsO3(aq)+H2O(l) If −Δ[I−]/Δt = 4.8×10−4M/s , what is the value of Δ[I3−]/Δt during the same time interval?
asked by Joe 
Math
Which term would best describe the following scenario? Vivian solved an equation. She showed all her steps and got the correct answer. What kind of reasoning did Vivian use to solve the equation? A convenient B inductive C predictive D deductive My
asked by Skye 
Chemistry
What functional groups do uracil,guanine,cytosine, and tyrosine belong to.
asked by Jinx 
algebra
A car hits an object the object goes 25 ft in the air and lands 300 ft away, how fast was the car traveling when hit the object?
asked by Janet 
global studies
Like many absolute monarchs before him, Peter the Great strengthened his own power by limiting the power of Russian
asked by samantha 
MATH
There is a 3meter tall vertical ladder from the ground to a ramp. The bottom of the ladder is 10 m from the base of the ramp. The distance along the ramp from the top of the ladder to the loading platform is 24 m. How high above the ground is the loading
asked by TEJAS 
physics
A particle is traveling without friction up and down hills and valleys. If its initial potential energy is 85 J and its initial kinetic energy is 83 J, what is its total energy, E? E: Correct: Your answer is correct. J B. If at a later point its potential
asked by Anonymous 
math
(6x)2square for x=4
asked by Anonymous 
Physics
In laboratory situations, a projectile’s range can be used to determine its speed. To see how this is done, suppose a ball rolls off a horizontal table and lands 1.2m out from the edge of the table. If the tabletop is 95cm above the floor, I figured out
asked by Anonymous 
physics
On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a golf club improvised from a tool. The freefall acceleration on the moon is 1/6 of its value on earth. Suppose he hit the ball with a speed of 33m/s at an angle 28∘ above
asked by abby 
help please
Devon's target heart rate zone is 140bpm—177bpm. Julian's target heart rate zone is 148bpm—181bpm. They stop running and take their pulse, and both count the heart rate at 173bpm. If they decrease their heart rates by 20bpm, who will be in his THR
asked by PLEASE HELP 
Physics
Why is it important to use the maximum force reading from a data collection?
asked by Nicole 
Finance
An insurance company says you can pay for your life insurance by paying $100 at the beginning of each year or $51.50 at the beginning of each halfyear. They say the rate of interest underlying this calculation is j2=3%. What is the true value of j2? The
asked by Mella 
math factoring
factor 2x^4+12x^318x^2108x
asked by B 
Science
Can you get results from observations? Can you still get results from doing only small amounts of experiments?
asked by bry 
Physics
A basketball is thrown horizontally with an initial speed of 4.70m/s . A straight line drawn from the release point to the landing point makes an angle of 30.0 ∘ with the horizontal. What was the release height?
asked by Jenn 
chemistry
Discuss how you would separate Fe+3 from Ca2+
asked by young 
Physics
A force of 10 N pushing down on a 2m^2 block will produce a pressure of?
asked by Irah 
Calculus
So here is the question: Find and equation of the tangent line to the graph: 4)f(x)=e^(2x) passing through the point (0,0) I find derivative being f'(x) =2e^(2x) Then m = f'(0) = 2 put into point slope formula: (yy1)=m(xx1) y0 = 2(x0) which comes out
asked by Tom 
Math
Water is leaking out of an inverted conical tank at a rate of 0.0109 {\rm m}^3{\rm /min}. At the same time water is being pumped into the tank at a constant rate. The tank has height 9 meters and the diameter at the top is 4.5 meters. If the water level is
asked by Coop 
math
the sum of three times a number and 5 is equal to the sum of the number and 11.
asked by fran 
Math
let s(t)= t^44t^3+8t for 0 ≤ t ≤ 4 find the total distance traveled by the object. find where the acceleration is positive.
asked by Tommy 
Algebra
Find the quotient and remainder 7x^62x^4+x^2+2 divided by x2
asked by PleaseHelp 
Chem Help Please!
In most cases with GLC the area under the peak as a % of the total area for all peaks is interpreted as representing the % mass of the compound measured in the mixture. Explain why this is only an approximation.
asked by Kayla 
Math
Farmer Jane has only pigs and chickens on her farm. She can't remember how many of each she has but she does know she counted 110 legs and 35 heads. Assuming that each animal is normal, how may of each animal does she have?
asked by Angel 
Algebra
the points (1,4), (3,8) and (8,3) lie on the graph whose equation is of the form: y=axb+c where a,b and c are real numbers. find a,b and c.
asked by Sam 
CHEMISTRY
Total Pressure in a vessel containing Oxygen collected over water at 25 *C was 723 torr. The Vapor Pressure of water at that Temperature is 23.8 torr. What was the pressure of gas?
asked by Sheila 
CHEMISTRY
How does hydrogen bonding in water affects Density?
asked by Shi 
journalism
What is the role of the nationstates in controlling the flow of entertainment media?
asked by bailey, PLEASE HELP 
physics
An automobile with an initial speed of 3.25 m/s accelerates uniformly at the rate of 3.2 m/s 2 . Find the final speed of the car after 4.4 s. Answer in units of m / s
asked by Anonymous 
Math
A movie poster shows King Kong towering over an adult human. On the poster, King Kong measures 42cm, while the human measures 5 cm. How tall is King Kong supposed to be, to the nearest foot?
asked by John 
Calculus
let F(x) = f(2x) and suppose that the derivative of F(x) = x^(2). Find the derivative of f(2x).
asked by Tom 
Math
Considering the word Mathematics, what is the ratio of vowels to consonants? Write the ratio 3 ways. word form: colon form: fraction form:
asked by Amy 
Chemistry
In Europe, gasoline efficiency is measured in km/L. If your car's gas mileage is 38.0mi/gal , how many liters of gasoline would you need to buy to complete a 142km trip in Europe? Use the following conversions: 1km=0.6214mi and 1gal=3.78L.
asked by Chirst 
Math
write an example of a part to whole ratio.
asked by Amy