Questions Asked on
November 17, 2014

college algebra
Suppose that the Russian population is declining by 0.48% each year, and continues to decline at this rate every year. a.) what is the overall 'growth' factor (really a decline factor) for 40 years of population decline? As a percentage of the current
asked by danielle 
Science help please
Which of the following statements describes the conservation of a natural resource? A. A timber company only cuts some trees down and replaces them with new trees. B. A solor energy company harvests energy from sunlight. C. A timber company cuts down all
asked by callie 
CAL
Which of the following functions is continuous but not differentiable at x = 1? Functions: I.y=3√x1 II.y={x^2,x≤1 2x,x>1 III. y={x,x≤1 1/x,x>1 I'm not really sure how to do this, but I've been trying and I keep getting both I and III.. am I wrong?
asked by Racquel 
Calculus Can you help
Suppose the functions f and g and their derivatives have the following values at x = 1 and x = 2. Let h(x) = f(g(x)). Evaluate h′(1). X  f(x) G(x) f'(x) g'(x) ____________________________ 1  8 2 1/3 3 2  3 4 2π 5 My answer: 6π but I'm not really
asked by Lily 
Derivatives
If g(x) = tan (5x2), then g ′(x) = ? I've worked this problem out like four times already and I keep getting a complete different answer..So I think I'm doing it wrong. I keep getting these.. g'(x)= cosx^2 5tan g'(x)= 2cosxtan^2
asked by Lily 
calc
Is the gradient of a function basically like the slope field. Also what is a conservative vector field. I know the definition but I'm having trouble visualizing it Thanks
asked by anon 
Chemistry
Help needed with a calorimeter lab. I have to measure the enthalpy of a neutralization reaction between NaOH and HCl as well as find the concentration of NaOH the following ways.  using the mass and volume of NaOH  Using calorimetric data assuming no
asked by Bibi 
Math
A jewelry box is designed such that its length is twice its width and its depth is 2 inches less than its width. The volume of the box is 64 cubic inches. Use synthetic division to find the roots of the polynomial equation. Are the roots all rational
asked by Anonymous 
math (algebra)
explain how to evaluate an expression with a variable when you are given a value for the variable
asked by ary 
biology
cystic fibrosis is caused by a recessive allele. A child has cystic fibrosis, even though neither of his parents has cystic fibrosis. If this couple has another child, what is the probability he or she will NOT have cystic fibrosis ?
asked by perry 
English
1. Don't use a cell phone while you are driving. 2. Don't use a cell phone while you drive. 3. Don't use a cell phone while driving. 4. Don't use a cell phone driving.  Which ones are grammatical? Does #3 mean #1 or #2?
asked by rfvv 
Math
Solve the nonlinear system by substitution {2x+y=5 {x^2+y^2=50
asked by Marly 
language arts
Which of these best states Nonno Frankie’s main idea of how to win a fight?
asked by robert 
english
3. In “The Pigman & Me,” the author creates a mood of suspense by focusing most of the action around a fight between two boys at school. a tree cut almost to its heart. Nonno Frankie’s advice to Paul. concerns about how a girl will react.
asked by robert 
trig
From the top of a tower of height 75m, a man sees two goats, both due west of him. If the angles of depression of the two goats are 10 degrees and 17 degrees, calculate the distance between them. It wants the angle of depression. I , myself, don't
asked by Anonymous 
Calculus  PLEASE HELP!!
For any real number x there is a unique integer n such that n≤x
asked by Lucy 
math
There are 10 children (aged 1 to 10 years) who have equal amounts of money. In the first transaction the eldest child gives one rupee to every child younger to him. In the second transaction, the second eldest child gives one rupee to every child younger
asked by jenny 
english
a humbly request (from or by)rita in this sentence i use from or by plz tell me quick i have test in tution ???????
asked by rita 
What would the effect size be?
Based on the data bellow, what would the effect size be? Group one 12 and group two 11. Standard deviation 3.
asked by Penelope 
maths
Given that the compound interest formular when A=p(1+r/n)nt where A is the amount accumulated at the end of tyears. if p is invested compounded n times per year.how long will it take 500000 to double if its invested at 12percent.
asked by hamza 
math
A three digit number is eleven times the twodigit formed by using the hundreds and the units digit of the three  digit number respectively, in the tens and units place of the two  digit number. If the difference between the digit in tens place and the
asked by sandra 
Science
True/false Earth's atmosphere oceans and continents began to form during the first several hundred million years of the Precambrian time.
asked by Chris 
English
1. I cannot but admire his courage. 2. I cannot help admiring his courage. 3. I cannot avoid admiring his courage.  Are all the sentences grammatical? What is the meaning of 'but' in Sentence 1? Does 'help' in #2 mean 'avoid' in
asked by rfvv 
Thermodynamics
Hello, Can i know what are the different types of diffusers ? Plz don't tell me to google it, becaus ei already did so, and its not much of great help. Thank you
asked by Daniel 
algebra
Given: Perimeter= 20 in Area= 15 sq. in Find hypotenuse= ?
asked by ferdinand 
english
How many dozen eggs in the box, the box said it contained 96 eggs
asked by hanh 
maths
a moon rock sample was 300g when rounded to the nearest 100g. Its exact mass was also a multiple of 10. What mass could the moon rock sample have been?
asked by sue 
Values Education
How do I interpret a drawing that has a winner and a girl scout in it if our topic was being special and happy about yourself
asked by Carrie 
math
use the appropriate formula to find the amount for the investment. For (a) and (b) please round the answer to the nearest cent. $13,600 for 5 years at 4.5% compounded semiannually.
asked by Anonymous 
math
use the appropriate formula to find the amount for the investment. For (a) and (b) please round the answer to the nearest cent. $13,600 for 5 years at 4.5% compounded semiannually.
asked by Anonymous 
Science
In humans, the allele for brown eyes (B) is dominant to the allele for blue eyes (b). What is the probability that two heterozygous browneyed parents will have a child with blue eyes?
asked by Anonymous 
art
What is a characteristic of paintings by JeanBaptisteSiméon Chardin? the depiction of stylized and exaggerated figures the depiction of scenes that avoid teaching moral values the depiction of light and color in an artificial way the depiction of
asked by 2phoneeeeee 
Physics
AN astronaut on the Moon has a mass (including his spacesuit and equipment) of 180 kg. the acceleration due to gravity on the Moon is 1.6 m/s2 (seconds squared). a) calculate his weight on the moon. the astronaut climbs 100m to the top of the crater . b)
asked by Mariam 
chem
hydrogen gas can be produced in the laboratory through the reaction of magnesium metal with hydrochloric acid: mg(s)+2hcl(aq)→mgcl2(aq)+h2(g) when 21.0g of mg reacts, what volume, in liters, of h2 gas is produced at 20∘c and 760 mmhg ?
asked by bianca Barbosa 
Calculus
The rectangles in the graph illustrate a left endpoint Riemann sum for f(x)=x^2/8 on the interval [4,8]. The value of this left endpoint Riemann sum is? The rectangles in the graph illustrate a right endpoint Riemann sum for f(x)=x^2/8 on the interval
asked by Hailey 
Calculus
The rectangles in the graph illustrates a left endpoint Riemann sum for f(x)=−(x^2/4)+2x on the interval [3,7]. The value of this left endpoint Riemann sum is? The rectangles in the graph illustrates a right endpoint Riemann sum for f(x)=−(x^2/4)+2x on
asked by Hailey 
Algebra 2
PLEASE HELP!!!!!!!!!!!!!!!!!! Solve each equation using the Quadratic Formula. x^2+12x+35=0
asked by Taylor 
Algebra 2
Solve each equation using the Quadratic Formula. 3x^2+5x=2
asked by Taylor 
Algebra 2
Solve each equation using the Quadratic Formula. 2x^2+3=7x
asked by Taylor 
Algebra 2
Solve each equation using the Quadratic Formula. x^2+16=8x
asked by Taylor 
american constitutional law
The federal income tax was authorized in the Constitution by: A. Article III. B. The Preamble. C. the Second Amendment. D. the Sixteenth Amendment.
asked by Anonymous 
algebra
student takes out two loans 1 at 10% and the other at 12 percent interest the 10 percent loan is $2000 more then the 12% loan and the total interest for one year is $430 how much is each loan?
asked by Chris 
maths
2% of the village died due to an epidemic. A panic set in, during which 14% of the remaining people left the village . If the population is then reduced to 2107, what was it originally?
asked by manavi 
Science 8A Check Answers
Will someone please check my answers as I need lots of help in science. 1. Which of the following is an example of matter? A. leaves B. shadow C. light from the sun* D. sound 2. Which of the following is an example of a chemical property of matter? A.
asked by Haley 
Science Help  Please
Can you please tell me if this is a balanced equation for Zinc and acetic acid... Zn(s) + 2CH3COOH(aq)>Zn(aq)(CH3COO)2 + H2(g) I would appreciate any help
asked by Cassie 
English
Hello! Can you tell me if I corrected these sentences properly? My answers are below each sentence I'm supposed to punctuate. Instructions/Hint: Semicolons 1. The baby smelled like lavender, and she just had a bath. The baby smelled like lavender; she
asked by Sooyoung 
Calculus
You are driving at 20 m/s when you notice a tree blocking the road, 30 meters ahead of you. It takes you half a second to react before slamming on the brakes. Your car decelerates at a constant 10 m/s2. How far does your car travel before stopping? Will
asked by Bre 
Science
1. Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use? (1 point) nitrogenfixing bacteria denitrifying bacteria decomposers producers 2. Which step in the nitrogen cycle is accelerated at
asked by Monkey55 
algebra
A boat can travel 29 mph. If it travels 217 miles with the current in the same lenght of the time it travels 189 against the current? What is the current
asked by Brit 
AP Chemistry
Two objects A and B of different size are both at a temperature of 500 K and are connected by a rod (A looks four times larger than b). What will be the nature of transmission of heat? I believe there won't be a transmission of heat. Any thoughts. Here are
asked by Morgan 
juvenile cime
what are roles of school administrators and teachers concerning schoolbased crime issues
asked by patiance 
Physics
a backpack has a massof 8kg.it is lifted and given 54.9 joules of gravitstional potential energy. how high is it lifted? accelerationdue to gravity is g=98 m/s^2.
asked by Anonymous 
AP Chemistry
Which of the following statements is true regarding two points within a system? A. They will have different types of particles. B. They cannot interact with each other. C. They have different boundaries. D. They have the same internal energy. Im think the
asked by Morgan 
PreCalc/Trig
Go over this with me please, I forgot how to do it. Solve the polynomial equation. 15x^3119x^210x+16=0
asked by Anonymous 
Maths
Quadratic Graphs Y=x^27 These are my values can you please check X=4 so y=9 X= 3 so y=2 X=2 so y = 3 X= 1 so y=6 X=1 so y=6 X=2 so y=3
asked by Anonymous 
Chem please help
An object with high thermal energy will also have which of the following? A. Low internal energy B. High kinetic energy C. High potential energy D. Low kinetic energy I have no idea
asked by Morgan 
physics
A circus performer decides to take his human cannonball act to the extreme. After being shot from a cannon, he soars over three ferris wheels and into a net. Assume that he is launched with a speed of 26.5m/s at an angle of 53.0 degrees, what angle does he
asked by Hakeem 
analytical chemistry
Adding 10.0 mL of 0.500 M HCl to 100.0 mL of pH = 7 water produces a solution with a pH of 1.34. What is the pH of the resulting solution when 10.0 mL of 0.500 M HCl is added to 100.0 mL of the buffer solution in the introductory example? That buffer
asked by simona 
Chem please help
Which of the following will have the most freely moving particles within it? A. Water at 100°C B. Water at 0°C C. Ice at 0°C D. Steam at 100°C I think the answer is a or d; however, I am favoring d.
asked by Morgan 
physics
A point mass m starts from rest and slides down the surface of a frictionless solid sphere of radius r. Find the angle at which the mass flies off the sphere
asked by sns 
English
Create an accurate summary of the “goodbye” scene between Marilyn and her brother in “The Cold Equations.” Provide your answer in three to five sentences.
asked by Lanea 
Science
Which of the following displays the correct order of structures urine passes through as it is processed by the urinary system? nephron, ureter, urinary bladder, urethra ureter, urinary bladder, nephron, urethra urinary bladder, urethra, nephron, ureter
asked by Anonymous 
chem
Calculate the final pressure, in atmospheres, for each of the following with n and V constant. A gas with an initial pressure of 1.20 atm at 82∘C is cooled to 28∘C.
asked by bianca Barbosa 
chemistry
A 5d electron emits a photon, what are the possible quantum n,l, quantum numbers of the final s tate electron? What would the quantum num bers be a fter a photon with the smallest allowed (nonzero) energy is emitted?
asked by Sarah 
Math
Your store’s average basket (transaction) size for the month of March was $11.50 and you believe the average basket size will remain the same for your store in April. One of your hourly employees had an average basket size of $9.00 for the month of March
asked by Anonymous 
PreCalculus
The solution of the system of three inequalities is given by a polygonal convex set. 8x + 2y ≥ 36 3x + 6y ≤ 27 7x + 5y ≥ 18 The function f(x,y) = 9x + 5y passes through this set. What values of (x,y) give f(x,y) its maximum value? A)(3, 2) B)(3,
asked by TeeKay 
chem
how to calculate a density of c4h6 in g/l at stp
asked by bianca Barbosa 
Algebra Work Check
Find the roots of x^4  16 = 0. √ x^4 = √ 16 x^2 = 4 √ x^2 = ± √ 4 2,2
asked by Anonymous 
English
Act I of An Enemy of the People Question Think carefully about what each quote might infer about the character and choose the most appropriate answer in the context of the play. Taking one thing with another, there is an excellent spirit of toleration in
asked by Ella 
Math
ax^2+bx+c=0 solve by using completing the square.
asked by Blessings 
hello!
In striving to meet the 2010 Dietary Guidelines for Americans, one should consume fewer foods with ________
asked by na nu 
Maths
Quadratic Graphs Can you please check if my values are correct? y=x^24x x= 4 so y= 0 x= 3 so y= 3 x= 2 so y= 4 x= 1 so y= 3 x= 0 so y= 0 x= 1 so y= 3 x= 2 so y= 14 Thank you
asked by Anonymous 
English
My homework is hard. The question is: COMPARE THE WAYS THE POETS PRESENT STRONG EMOTIONS IN 'MEDUSA' AND ONE OTHER POEM FROM CHARACTER & VOICE. The two poems are Medusa and Les Grand Signeurs. Medusa:Be terrified. It’s you I love, perfect man, Greek God,
asked by Daniel 
Algebra
Write the simplest polynomial function with zeros five and 4. K(x) = x^2  x  20?
asked by Anonymous 
College Physics
A 1.45kg mass oscillates according to the equation x=0.650cos8.10t, where x is in meters and t is in seconds.Determine the amplitude, frequency, total energy, and the potential and kinetic energy at x=0.370
asked by Saya 
math
38+7=45 break apart ones to make a ten ?
asked by Linda 
chemistry
In a volumetric analysis experiment, a solution of sodium oxalate (Na2C2O4) n acidic solution is titrated with a solution of potassium permanganate (KMnO4) according to the following balanced chemical equation: 2KMnO4(aq)+8H2SO4(aq)+5Na2C2O4(aq)>
asked by Monteshia 
chemistry
What volume of ammonia gas, measured at mmHg and 43.5 degrees C, is required to produce 8.41g of ammonium sulfate according to the following balanced chemical equation: 2NH3(g)+H2SO4(aq)>(NH4)2SO4(s)
asked by Monteshia 
chemistry
One step in the isolation of pure rhodium metal (Rh) is the precipitation of rhodium (III) hydroxide from a solution containing rhodium(III) sulfate according to the following balanced chemical equation: Rh2(SO4)3(aq)+6NaOH(aq)>2Rh(OH)3(s)+3Na2SO4(aq)
asked by Monteshia 
chemistry
1.) 1.25 moles of an ideal gas are contained in 8.0L. If the temperature is 33K, what is the volume at STP?
asked by xx 
chemistry
1.) 105.4mL of Co2(g) was generated with a pressure of 765.5mm Hg for the gas. The temperature of the apparatus was 25.0C. How much zinc oxide would be left in tube if version A was the correct formula?
asked by xx 
chemistry
3.) Co2(g) is collected over water at 20 degrees Celsius. The pressure in the bottle is equalized with the atmospheric pressure, which is measured to be 715.8mmHg. What is the pressure of the Co2(g)?
asked by xx 
chemistry
2.) An ideal gas in a 6.30L container at 3.50 atm and at 273K is heated to 435.0K. What is the new pressure?
asked by xx 
Math
Quadratic Graphs Can you please check if my values are correct? y=x^24x x= 4 so y= 0 x= 3 so y= 3 x= 2 so y= 4 x= 1 so y= 3 x= 0 so y= 0 x= 1 so y= 3 x= 2 so y= 14 Thank you
asked by Anonymous 
english
how would you use personification and metaphors to describe a school bus?
asked by Anonymous 
physical
What is the value of the normal force if the coefficient of kinetic friction is 0.22 and the kinetic frictional force is 40 newtons?
asked by Anonymous 
algebra
The expression 3x² represents
asked by kelcie 
Science
If you have 100g of vinegar and add 10g of baking soda, what should the total mass be?
asked by Michael 
english
Elnora unlocked the case, took out the pail, put the napkin in it, pulled the ribbon from her hair, binding it down tightly again and followed to the road. From afar she could see her mother in the doorway. She blinked her eyes, and tried to smile as she
asked by 2phoneeeeee 
art history
Hello! I just need help in confirming/denying my own answers. For wrong answers, any assistance would be appreciated. These are study questions for an upcoming test so guidance would be EXTREMELY helpful. THANK YOU THANK YOU THANK YOU :) 1. The Sanctuary
asked by kailey 
MATH
Mimi's Market sold 24 heads of lettuce one morning. That afternoon 2/7 of the remaining heads of lettuce were sold. The number of heads left was now 1/2 of the number the market had at the beginning of the day. How many heads of lettuce were there at the
asked by Alan 
chemistry
What is avogadro's law
asked by utsman 
Math! Please check!
Suppose angle PQR and RQS are adjacent angles. Whats side do these angles have in common? A: > PQ B: > SQ C: > QR D: > RQ My choice is D
asked by Skye 
algebra
The function A(t) = 200e^0.014t gives the amount of medication, in milligrams, in a patient's bloodstream t minutes after the medication has been injected into the patient's bloodstream. (a) Find the amount of medication, to the nearest milligram, in the
asked by Barb 
algebra
The monthly income I, in dollars, from a new product is given by I(t) = 81000 − 45000e^0.005t where t is the time, in months, since the product was first put on the market. (Round your answers to the nearest dollar amount.) (a) What was the monthly
asked by Barb 
algebra
Lead shielding is used to contain radiation. The percentage of a certain radiation that can penetrate x millimeters of lead shielding is given by I(x) = 100e^−1.5x. What percentage of radiation, to the nearest tenth of a percent, will penetrate a lead
asked by Barb 
Math! Please check!
Which of the following is a good definition? A: You are a teenager if and only if you are 15 years old. B: You are 15 years old if and only if you are not an adult. C: You are 13 to 19 years old if and only if you are a teenager. D: You are not a teenager
asked by Skye 
English
What part of speech is am?
asked by Anonymous 
Math
Rachel sent or received 10,290 text messages in the month of September. If each text message over the first 150 messages cost 8 cents, what was her texting bill? Explain how you got your answer. Assuming that she slept 7 hours each day, what was the
asked by Help!!! 
math
Find all zeros. Real and Imaginary f(x)= 5x^4 + 16x^2 + 3
asked by maria 
Systems Analysis
This is the question that was asked: The components of a traditional analysis model (data flow diagrams, process definitions, entityrelationship diagrams, and data definitions) were developed in the 1970s and 1980s as part of the traditional structured
asked by Sean 
algebra
A cup of coffee is heated to 180°F and placed in a room that maintains a temperature of 65°F. The temperature of the coffee after t minutes is given by T(t) = 65 + 115e^−0.042t.(a) Find the temperature, to the nearest degree, of the coffee 10 minutes
asked by Barb 
BAsic college math
732,178 + 167 – 542,137 =
asked by Kimberly BEck 
math
Jocelyn borrowed 3.75 kg of flour from her grandmother to bake 3 batches of cookies and 2 cakes. Each cookie recipe called for 225 grams of flour. Each cake recipe needed 1.2 kg of flour. After baking, how much flour was Jocelyn able to return to her
asked by wanda 
Chemistry Physics
How many Btu of heat are required to melt 33.0 lb of ice at 32°F and to raise the temperature of the melted ice to 72°F?
asked by Ben 
math
in a survey of 50 students , 23 owned cellular phones, 18 owned digital cameras, x owned cellular phones and digital cameras,2x owned neither, draw a venn diagram using this information
asked by Anonymous 
physica
help A thermally insulated vessel containing 100 grams of ice at 0 degrees Celsius . Water at 55 degrees celsius is poured and after some time , the system reaches the equilibrium at a temperature of 10 degrees Celsius. That amount of water in grams was
asked by David 
physics
A railway flat car is rushing along a level frictionless track at a speed of 45m/s. Mounted on the car and aimed forward is a cannon that fires 65 kg cannon balls with a muzzle speed of 625m/s. The total mass of the car, the cannon, and the large supply of
asked by togo 
math
A store offers a discount of 30 percent on all reference books if a dictionary cost 12$ before the discount what is the dollar amount?
asked by malachi alexander 
college, math
Karen and Wayne need to buy a refrigerator because theirs just broke. Unfortunately, their savings account is depleted, and they will need to borrow money in order to buy a new one. Sears offers them an installment loan at 12% (addon rate). If the
asked by sheila 
Math
1/2(2)2
asked by Imani 
Math
Which expression for 32 more than a number d? 32x d, 32d, 32+d, 32\d ?
asked by Unknown 
Math
Write this as an inequality He would have traveled 120 miles and would need 330 more miles to reach Dallas Variables : h gor time and m for miles
asked by M 
Physics
A woman is swimming when she hears the underwater sound wave from an exploding ship across the harbor. She immediately lifts her head out of the water. The sound wave from the explosion propagating through the air reaches her 4.00 s later. How far away is
asked by Malorie 
calculus
Find two positive numbers that satisfy the given requirements: The product is 147 and the sum of the first number plus three times the second number is minimum
asked by Jallah 
Math
Complete the Square f(x)= x^2 + 2x
asked by monique 
Science
Although consumers play a very critical role in any ecosystem, a vital part of an ecosystem is the stability of its
asked by Henna 
Math
1/2(1)2
asked by Asha 
science
if you get cut a type of metal in two pieces do they both have the same density
asked by dan 
Math
Heidi has 40 flower arrangemts. Rose arrangements are 4 times as many as tulips how many of each do I have
asked by Em 
math
write the missing numbers to.make the sentence true example 7+9=_______+7?
asked by christon 
Chemistry
Assume you are performing the calibration step of Experiment 8 and you begin with 20 g of water at 20 oC and 20 g of water at 80 oC. After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment,
asked by Alex 
Math
Mr.Snider is tiling a floor.The floor is 16 tiles long and 9 tiles wide.The center section is tiles12 tiles long and 5 tiles wide. How many tilesate in the border section?
asked by Destin 
Math
Three neighbors are sharing a rectangular strip of land for a garden. They divide the land into 24 equal sized pieces. They each get the same amount of land. Write a ratio comparing the number of people. Write the answer more than one way.
asked by Roxy 
Business: Help Is Needed ASAP
Help Is Needed ASAP Hi, Please help me! I need to know is these is the correct answer for these questions. Thanks for your help! Some countries try to hold the value of their currency within some range against an important reference currency. This is
asked by Brandy 
Math
Cheryl, Rita, and four of their friends go yo a movie and share 48 ounce bag of popcorn equally and three 48 inch licorice laces equally. Write a ratio comparing the numbers of ounces popcorn to the number of friends. Then, write a unit rate comparing the
asked by Roxy 
Reading
On my reading worsheet we are supposed to find antonyms of words and one word was analyze and the options to match antonyms were not going in to any word Like on google it gives me synthesize or combine but neither word is on my worksheet please help
asked by Steve 
math
Add the hundredths. 4 hundredths + 7 hundredths = ____ hundredths. Regroup the hundredths.
asked by Jordan 
university of minnesota
Find the maximum and minimum values of the given objective function on the indicated feasible region. M = 150 − x − y
asked by fatima 
math
The monthly income I, in dollars, from a new product is given by I(t) = 81000 − 45000e^0.005t where t is the time, in months, since the product was first put on the market. (Round your answers to the nearest dollar amount.) (a) What was the monthly
asked by Barb 
math
Lead shielding is used to contain radiation. The percentage of a certain radiation that can penetrate x millimeters of lead shielding is given by I(x) = 100e^−1.5x. What percentage of radiation, to the nearest tenth of a percent, will penetrate a lead
asked by Barb 
Science
If the meadow flower is killed by herbicide spraying, what changes might be expected in the other meadow species mentioned?
asked by Henna 
math
write the missing numbers to make the sentence true 4+2+6=_____ , 7+9=_____+7, 3+5+3=_____+5
asked by christon 
science
A 2000kg car traveling at a speed of 27m/s skids to a halt on wet concrete where μk = 0.20.
asked by james 
math
The temperature at 3:00 a.m was 17.3 degrees. By noon it was 17.8 degrees. At what time was it the coldest
asked by Sharkeisha 
math
Find the maximum and minimum values of the given objective function on the indicated feasible region. M = 150 − x − y
asked by fatima 
algebra
The number of bass in a lake is given by P(t) = 2800/1+6e^0.05t where t is the number of months that have passed since the lake was stocked with bass. (a) How many bass were in the lake immediately after it was stocked? ? bass (b) How many bass were in
asked by Barb 
math
Huan deposited $850 into a collegesavings account earning 4.8% interestcompounded annually. He also deposited$850 into a second account earning 4.8%simple interest. He made no additionaldeposits. After 10 years, which account earnedmore interest? How much
asked by mr.E 
math
A trucker hauls citrus fruit from Florida to Montreal. Each crate of oranges is 4 ft3 in volume and weighs 60 lb. Each crate of grapefruit has a volume of 6 ft3 and weighs 75 lb. His truck has a maximum capacity of 300 ft3 and can carry no more than 4200
asked by nini 
math
what is 82 over 100 in simplest form?
asked by selena 
chem
The daily RNI of calcium for adolescent females is 700 to 1100 mg. A supplement tablet contains 950 mg of calcium citrate. Each grams of calcium citrate contains 5.26 x 10^3 mol calcium. How many tablets would a 16 year old female have to take to meet her
asked by christine k 
English
Is the following a compound complex sentence? During last night's game, the bases were loaded, and Bob hit a grand slam. During last night's game is a dependent clause the bases were loaded in an Independented and bob hit a grand slam Independent
asked by Anonymous 
algebra
When Charlotte planted her tomato plant, it grew 3 inches in one week. After 5 weeks, the tomato plant was 23 inches tall. Assume the relationship is linear. Find and interpret the rate of change and the initial value.
asked by natalie 
Physics
A woman is swimming when she hears the underwater sound wave from an exploding ship across the harbor. She immediately lifts her head out of the water. The sound wave from the explosion propagating through the air reaches her 4.00 s later. How far away is
asked by Malorie 
chem please help
Which of the following is true about work? A. Work depends on time. B. Work helps retain the state of matter. C. The SI unit of work is the watt. D. Work can cause a change in the form of matter. I know it is not a or b so whats the answer
asked by Morgan 
Math
6.2*1,000=
asked by BJ 
English
1. What kind of mistakes is he making? 2. What kinds of mistakes is he making> 3. What kinds of mistake is he making? 4. What kind of mistake is he making?  Which expressions are grammatical? Which one is commonly used?
asked by rfvv 
Chemistry
Consider the following hypothetical acidbase reaction. A(aq) + B(aq) C(aq) + D(aq) WA WB SA SB Question 13 options: The position of the equilibrium shifts from left to right The position of the equilibrium shifts from right to left The position of the
asked by Tamera 
Chem please help
An object A has half the mass and twice the velocity of object B. How are the kinetic energies of A and B related? A. The kinetic energy of B is 4 times that of A. B. The kinetic energy of B is twice that of A. C. The kinetic energy of A is the same as
asked by Morgan 
english
Is the following a complete sentence. I say NO it is a fragment. The woman who had been our family dentist for many years. If who wasn't in there I would say it was complete.
asked by Anonymous 
Geometry
Write proof for the following Given: line AC is congruent to line BD, line AD is congruent to BC Prove: triangle DAX is congruent to triangle CBX It's an isosceles trapezoid. From top left is labeled A. Top right labeled B. Bottom right labeled C. Bottom
asked by Anonymous 
Math
Jack has 5 apples Sahara has 13 apples. They each got the same amount times the number they already have. How much apples does jack and Sahara have now.
asked by Kimberly 
World History (Ms. Sue)
Do you agree with that which I have written in response to the topic that I was given? Explain how the Russian Revolution and the entry of the United States affected the course and outcome of World War I. That which I written: In 1917, the Russian
asked by Victoria 
English
1. Cleaning is good exercise, too. 2. Cleaning is a good exercise, too.  Do we have to use 'a' or not? Which one is correct? Are both correct?
asked by rfvv 
math
Jane earn 2/5 of her monthly slary every 1/2 day. What fraction she earn in a week?
asked by romeo 
Business Communication
Which of the following considerations is relevant to the adaptable characteristic of effective business communicators? a. What do I want to accomplish with my message? b. With whom should I communicate to accomplish my goal? c. Is my message understandable
asked by anonymos 
Business Communication
Which of the following would be best for transmitting a message to and receiving a response from one or more people? a. performance reports b. company newsletters c. email d. industry journals I think ccould be one or more people not sure what industry
asked by anonymos 
Chemistry
In an aqueous solution the [OH–] is 2.0 x 10–6 M. What is the [H3O+]? Question 17 options: 1.0 x 10–7 M 2.0 x 10–6 M 1.0 x 10–8 M 5.0 x 10–9M
asked by Tamera 
Trig
the angle of elevation to the sun is 65 degrees. A building casts a shadow 16m long. What is the height of the building to the nearest meter?
asked by Julia 
Business Communication
____________is an example of communication. a. Planning the plotline of a book that you plan to write. b. Setting a reminder text on your cell phone c. Updating your status on a social networking site. d. Listening to classic tunes on an MP3 player. I
asked by anonymos 
English
Still doing good in English, I hope. SentenceYesterday during the tornado watch, we heard the wailing of the siren in the pathway. A gerund always ends in ing and functions as a noun. Ok during is not a gerund but wailing is a gerund. Am I right?
asked by Karen 
Algebra
The number of bass in a lake is given by P(t) = 2800/1 + 6e^−0.05t where t is the number of months that have passed since the lake was stocked with bass. (a) How many bass were in the lake immediately after it was stocked? 400 bass (b) How many bass were
asked by Kimberly 
English
Can a gerund come at the end of a phrase? Like When you reach the crossing, try to avoid stepping on the stones in the pathway. I am thinking crossing is a gerund in the phrase. Stepping used as a verb.
asked by Karen 
chemistry
how many liters of gaseous hydrogen bromide at 97 degrees c and 0.953 atm will a chemist need if she wishes to prepare 3.50 L of 1.20 M hydrobromic acid?
asked by Anonymous 
math
How high is a tree that casts a 33 foot shadow at the same time a 6 foot pole casts a 4 foot shadow?
asked by rhonda 
chem please help drbob222
If the internal energy of an object remains constant, which of the following statements is true regarding the object's potential energy? A. It remains the same when the object's velocity increases. B. It decreases when the object's velocity increases. C.
asked by Morgan 
physics
Find the force (in newton) required to lift a mass of 26 kg load with a wheelbarrow (2nd class lever) with the load at 0.75 m from the fulcrum and being lifted at 1.7 m from the fulcrum, assuming ideal conditions.
asked by kody 
math (stats)
The cholesterol levels of adult American women are approximately normal with the mean of 188 mg/dl and a standard deviation of 24 mg/dl. a company wants to test a certain medication for women falling in the highest 15% of cholesterol readings. what is the
asked by jeff 
Algebra  can you PLEASE double check my work?
Part A: Use the properties of exponents to explain why is called the fifth root of 18. 1. What property refers to roots and fractional powers? My Answer: Rule of exponents 2. How does it apply to 18^1/5? If you multiply 18^1/5 by itself 5 times, you get
asked by Jake 
Science 8
A copper bracelet is placed in a graduated cylinder full of water. The water level rises from 15.6 ml to 28.0ml. The mass of the bracelet is 101.7g. Is the bracelet made of pure copper? How would I know? How would I explain?
asked by Catherine 
English Ms Sue
Ok, I got my final exam in hand. Nine pages. Think I can whip this one, but he put my weakest point in test. 4 pages of nothing but the complex, compound complex, simple and compound sentences. Have pulled out my print outs from chompchomp. I will do this!
asked by Karen 
Algebra  Can you PLEASE check  I"m stuck!
Bob is studying the growth of a particular species of plant. He writes the following equation to show the height of the plant f(n), in cm, after n days: F(N)=10(1.02)^n 1. Starting from 0 days, plug xvalues into our function to find out how many days it
asked by Jake 
math
Joel made egg and tuna sandwiches in the ratio of 2:3. He then made 15 more tuna sandwiches and the ratio changed to 1:3. How many sandwiches did Joel make in all? 2/3=3/t; solving for t=4.5 when calculating to 15 tuna sandwiches, makes 10 egg sandwiches
asked by jae 
Bio 11
'Slow' vs. 'Fast' : give 3 example organisms each
asked by Priya 
Algebra  quick question
What is the average rate of change formula for exponential growth functions?
asked by Destiny 
Bio 11
How is lifestyle related to nervous system development?
asked by Priya 
Physics
A motor pushes a boat through the water with the force of 2100 N; the water creates a resistance force of 1800 N. What is the acceleration of 1200 kg boat? (Do I use force equals mass times acceleration? 2100=1200a) If it starts from rest how far will it
asked by Jay 
Trig
Jane has a bike with a 22inch rear wheel. The wheel sprocket is 3 inches in diameter and the pedal sprocket is 4 inches in diameter (the sprockets hold the chain.) How fast in miles per hour is she going if she pedals at a rate of 100 revolutions per
asked by Dan 
Bio 11
1 example for each A) Tentacled Mollusk B) 2shelled Mollusk C) 1shelled Mollusk D)Clever and smart Mollusk E) Pearl producing Mollusk F) Devoted mother Mollusk G) Land Mollusk H) Dangerous Mollusk I) Sneaky Mollusk J) Herbivore Mollusk K) 3890!!
asked by Priya 
Math
A pine tree stands 10 meters tall but due to a windstorm it is leaning at a 60 degree angle with the ground. Find an exact expression for the length of the shadow of the tree when the sun is directly overhead.
asked by Peach 
Algebra  rate of change help
The price of products may increase due to inflation and decrease due to depreciation. David is studying the change in the price of two products, A and B, over time. The price f(x) in dollars, of product A after x years is represented by the function below.
asked by Destiny 
Math
Ms. Meyers said the theatre usually charge $9 per student. On student night, the tickets are $6 per student and she can bring 47 more students for the same cost. How many students can Ms. Meyer bring to the theatre?
asked by Jordyn 
AP European History
What were the fundamental ideas associated with mercantile theory? Did they work? Which European country was most successful in establishing a mercantile empire? Least succesful? Why?
asked by Anonymous 
sixth grade ratios and rates
Tom and Jasper have the same percentage of blue marbles in their bags of marbles. tom has 5 blue marbles and 20 total marbles. Jasper has 12 blue marbles. How many of Jasper's marbles are not blue? I need help solving this problem.
asked by Javonte 
Math
jody has a rectangular piece of fabric 7/8 yard long and 4/5 yard wide. What is the area of the piece of fabric
asked by Tammy 
math
Q1.The zoo uses 10 pounds of apples each day. How many pounds of apples should be on the weekly grocery list? Answer: 10X7=70 pounds of apples for a week Q2.After 6 days, how many pounds of apples does the zoo use? Answer: 10X6=60 pounds is this right?
asked by sree 
com200
is learned and maintained through interpersonal communication with others.
asked by Anonymous 
History
I'm doing a history day project on Sacagawea and I need primary sources, sources that were from the time that Sacagawea was alive, if you know of any or ways to search for them it would be greatly appreciated.
asked by Anonymous 
pharmaceutical calculations
15g of potassium chloride is diluted in is diluted in 2 L of sterile water for injection.What is the final strength (w/v)?
asked by shanica 
math (stats)
For a car traveling 30 mph in normal conditions, the distance required to brake to a stop is normally with a mean of 50 feet and a standard deviation of 8. you are traveling in a area at 30 mph and a car swerves into your path at a distance of 60 feet
asked by sarah 
Statistic
A major airline company is concerned that its proportion of late arrivals has substantially increased in the past month. Historical data shows that 18% of the company airplanes have arrived late. In a random sample of 1,240 airplanes, 310 airplanes have
asked by Rachel 
Chemistry URGENT please HELP
NH4NO3(s)+H2O(l)→NH4NO3(aq) ΔH = +25.7 kJ. What is the final temperature in a squeezed cold pack that contains 49.0g of NH4NO3 dissolved in 125 mL of water? Assume a specific heat of 4.18J/(g⋅∘C) for the solution, an initial temperature of 28.5∘C,
asked by Bri 
physics
Save Two children hang by their hands from the same tree branch. The branch is straight, and grows from the tree trunk at an angle of 27 degrees above the horizontal. One child, with a mass of 39 kg is hanging 1.50 m along the branch from the tree trunk.
asked by george 
sixth grade ratios and rates
Tom and Jasper have the same percentage of blue marbles in their bags of marbles. Tom has 5 blue marbles and 20 total marbles. Jasper has 12 blue marbles. How many of Jasper's marbles are not blue? Can someone show me how to solve this problem?
asked by Javonte 
Math
How to determine which represents a function on a graph
asked by M 
Chemistry
At a given temperature, a firstorder reaction has a rate constant of 3.5 ´ 10–3 s–1. How long will it take for the reaction to be 24% complete? A chemical reaction that is firstorder in X is observed to have a rate constant of 2.20 ´ 10–2 s–1.
asked by Juli 
algebra
If a car traveling at 50 mph requires 170 ft to stop, find the stopping distance for a car traveling at v2 = 60 mph.
asked by Irma 
english literature
plss help what is the point of the story of the moro epic parang sabir plssss answer thank you
asked by mier 
science
Dan pushes a cart full of groceries with a force of 53N and does 1550J of work. How far did he push the cart?
asked by SM 
langue arts
Description of the climate in at least three different locations/regions in your state? (1 point)
asked by kayli 
algebra worksheet help please
Fiberoptic cables are used widely for Internet wiring, data transmission, and surgeries. When light passes through a fiberoptic cable, its intensity decreases with the increase in the length of the cable. If 1,500 lumens of light enter the cable, the
asked by Destiny 
math
You make skateboard ramps by cutting pieces from a board that is 12 1/2 feet long. a. Estimate how many ramps you can cut from the board. Is your estimate reasonable? Explain. b. How many ramps can you cut from the board? How much wood is left over?
asked by Anonymous 
math
If a car traveling at 50 mph requires 170 ft to stop, find the stopping distance for a car traveling at v2 = 60 mph.
asked by Irma 
plane and spherical trigometry
tower has 57 feet high two objects in a straight line from it are sighted at a angles of a depression of 27 degree and 40 degree 5 minute respectively. find the distance between two objects
asked by rexter 
physics
An express subway train passes through an underground station. It enters at t = 0 with an initial velocity of 23.5 m/s and decelerates at a rate of 0.150 m/s2 as it goes through. The station in 215 m long. (a) How long is the nose of the train in the
asked by mathew 
Government day
Calculate the area of rectangle 3.85m long and 2.37m wide
asked by Seun 
math please help
Studies shown that gasoline use or compact cars sold in the U.S. is normally distributed, with a mean of 25.5 mpg and standard deviation of 4.5 mpg. Find the range of mileage for the middle 60% of compact cars. I have no idea how to do this with the
asked by sarah 
math
The stopping distance (s) of a car varies directly as the square of its speed (v). If a car traveling at 50 mph requires 170 ft to stop, find the stopping distance for a car traveling at v2 = 55 mph.
asked by Irma 
L.A.Help!!!!!!
What kind of organization is used in "The Season's Curmudgeon Sees the Light" by Mary C. Curtis? A. chronological order B. causeandeffect order C. comparison and contrast D. narrative Is the answer C? Thank you
asked by blue 
math
Of a group of students 5/8 of them are boys. The girls are put into groups so that each group has 1/6 of the total number of students. How many groups of girls are there?
asked by fractions and decimals 
computer science
The components of a traditional analysis model (data flow diagrams, process definitions, entityrelationship diagrams, and data definitions) were developed in the 1970s and 1980s as part of the traditional structured analysis methodology. How well do the
asked by Sean 
Maths
A communications tower has many guy wires supporting it. Two of these guy wires are 10.0 m and 8.0 long. They are attached at the same point on the ground. The longer wire has an angle of inclination of 60 degrees. a) How far from the base of the tower are
asked by Anonymous 
English
To return your items, you must have a receipt. We are studying infinitives. I need to by some new clothes for the summer. I know to buy is the infinitive and to but some new clothes is a phrase but i am lost as to say what part of speech. is it an adverb
asked by Anonymous 
Language Arts; Trouble with television
It is difficult to escape the influence of television. If you fit the statistical averages, by the age of 20 you will have been exposed to at least 20,000 hours of television. You can add 10,000 hours for each decade you have lived after the age of 20. The
asked by Yvonne 
L.A.Help!!!!!!
Why might the author have chosen to organize "Forest Fire"by Anais Non in chronological order? A. She wanted to create the same suspense for readers as she felt at the time. B. She wanted readers to understand the causes of the fire. C. She was afraid that
asked by blue 
chemistry
What mass of precipitate will form if 1.50 L of concentrated Pb(ClO3)2 is mixed with 0.150 L of 0.190 M NaI? Assume the reaction goes to completion.
asked by jackson 
Advanced math
Find the Fourier sine expansion of the function sin(x)  sin(4x)
asked by RAJ 
Math
A collector has 120 movie posters and 100 band Posters. She wants to sell 24 movie posters but still have her poster collection maintain the same ratio of 120: 100. If she sells 24 movie posters, how many band posters should she sell? Explain
asked by Makenzey 
physics
A copper pipe with an outer radius of 0.010 m runs from an outdoor wall faucet into the interior of a house. The temperature of the faucet is 3.3°C, and the temperature of the pipe, 3.0 m from the faucet, is 25°C. In fifteen minutes, the pipe conducts a
asked by Anonymous 
physics
In a house the temperature at the surface of a window is 20.1 °C. The temperature outside at the window surface is 2.72 °C. Heat is lost through the window via conduction, and the heat lost per second has a certain value. The temperature outside begins
asked by Anonymous 
English
To return your items, you must have a receipt. To return your items is the infinitive phrase I am saying used as a noun am i right?
asked by Anonymous 
math
a pack of cardinal flower seeds costs $4, and a pack of petunia flower seeds costs $2.50. you buy the same number of packs of each type of flower and spend $39. How many pack of each do you buy? write an equation to solve.
asked by Anonymous 
chemistry
The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same thing as weight, but the abbreviation (w/v) is also common. How many grams of sucrose are needed to make 655 mL of a 36.0% (w/v) sucrose solution?
asked by jackson 
English
Many people want to travel around the world. To travel functions as a noun because it is the direct object of the verb wants. Am I right?
asked by Anonymous 
English
The song lyrics say that we live to worship the Lord. to worship the Lord is the infinitive phrase I say an adverb because it is how we live
asked by Anonymous 
Math
The ratio of North American butterflies to South American butterflies at a butterfly park is 5:3. There are 30 North American butterflies at the butterfly park. How many South American butterflies are there?
asked by Makenzey 
Health help please!!!
Your body can get antibodies from A. immunizations B. being exposed to the virus or antibody and having your immune system make it C. none of the above D. all of the above I want to say the answer is D but the none of the above is throwing me off? Am I
asked by callie 
L.A.Help!!!!!!
Please look at what i have posted twice. I really appreciate the help. Thanks
asked by blue 
math
how you do percentages?
asked by Irma