Questions Asked on
April 27, 2017

Chemistry
Which one of the following compounds does not follow the octet rule? a) NF3 b) CF4 c) SF4 d) PH3 e) HCl I know I can eliminate A and B because nitrogen and carbon follow the octet rule. I know I can eliminate E because the total amount of valence electrons
asked by Anon 
calculus
The differential equation below models the temperature of a 87°C cup of coffee in a 17°C room, where it is known that the coffee cools at a rate of 1°C per minute when its temperature is 67°C. Solve the differential equation to find an expression for
asked by alex 
physics
A coil has an inductance of 9.00 mH, and the current in it changes from 0.200 A to 1.50 A in a time interval of 0.300 s. Find the magnitude of the average induced emf in the coil during this time interval.
asked by Sam 
mathprecalculus
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature varies between 73 and 87 degrees during the day and the average daily temperature first occurs at 8 AM. How many hours after midnight, to two decimal
asked by j 
Math
1.Which of the following are independent events? Flipping a coin and rolling a number cube*** Choosing two marbles without replacement Spinning a spinner twice Choosing a card, replacing it, and then choosing another card*** 2.A bag holds 3 blue marbles 5
asked by TheeUniverse 
english
Please help me to correct my anserw below.thank you Petroleum, or crude oil, is one of the world's (1) _____ natural resources. Plastics, synthetic fibres, and (2) _____ chemicals are produced from petroleum. It is also used to make lubricants and waxes.
asked by jessie 
Chemistry
Draw the structure of the tripeptide “AspAlaIle” at pH = 1. Then determine the total charge of the tripeptide. The side chain of each amino acid is shown below in the form at pH = 7. (So when you use them to answer this question, you might need to
asked by Jennifer 
Science
You want to make meatballs according to a recipe that says to marinate the meatballs in garlic and soy sauce before baking them in the oven. You prepare the marinade and immerse the meatballs, which are 6 cm in diameter, in it for 1 hour. When cutting into
asked by Hajnalka 
Physics pls help
Two dogs, Rover and Fido, run on a level frictionless surface. Rover runs eastward with a momentum of 24 kg . m/s, and Fido runs northward with momentum 10 kg . m/s. They make a sudden perfectly inelastic collision. What is the magnitude of their combined
asked by Anonymous 
ELA
1.In Youre a Good Man Charlie Brown why does Charlie Brown hesitate when answering Lucy's survey.Select all that apply. A.he wants to make sure his answers are truthful B.he does not fully understand the question C.(he is afraid of he anger if he answers
asked by Help I need Somebody not just anybody 
Math
A jar contains 5 blue marble, 8 red marbles, 4 white marbles,and purple marbles. Suppose you pick a marble at random without looking. Find the probability of each event. Choosing a blue marble, putting it back, then choosing a purple? (Simplest form)
asked by Alice 
calculus review please help!!
The velocity of a particle moving along the xaxis is v(t) = t^2 + 2t + 1, with t measured in minutes and v(t) measured in feet per minute. To the nearest foot find the total distance traveled by the particle from t = 0 to t = 2 minutes.
asked by Jane 
Chemistry
In the gasphase reaction given below, the [I2] changes from 0.400 M at 0.00 min to 0.200 M at 3.00 min. I2 + Cl2 > 2 ICl Calculate the average reaction rate in moles I2 consumed per liter per minute. mol/(L·min)
asked by Lionel 
math
in lotto draw balls 150 mixed together. machine randomly selects numbers 13,11,7,27,41. is the 6th number drown A. more like to be odd than even b. more likely to be even than odd c. equally likely i could not decide, as long as there even and odd
asked by Anonymous 
5th Grade English Grammar
positive comparative superlative for troubled, straight, friendly, dry, safe, useful, flat, willing, blue, worst, and sad. Thanks.
asked by Bob 
Math
Find the perimeter of a regular 360sided polygon that is inscribed in a circle of radius 5 inches. If someone did not remember the formula for the circumference of a circle, how could that person use a calculator’s trigonometric functions to find the
asked by Matty 
statistics
Recent studies, as summarized, for example, in E. Mortensen et al. (2002). The association between duration of breastfeeding and adult intelligence. Journal of the American Medical !@#$%^& o ciation , 287 , 2365–2371, suggest that breastfeeding of
asked by Sara 
math
You roll a number cube twice. Find P (even, then not 2). Write the probability as a fraction in simplest form. I'm fully clueless to the answer to this question. Can someone please help me out? Thanks Very Much and need the answer A.S.A.P!
asked by Dejavu 
Maths
A paper clip is made from 9.2 cm of wire what is the greatest number of paper clips that can be made from 10 m of wire
asked by Anonymous 
geography
1. Which of the following is an example of a refugee? a student who moves to Europe to study art a Jewish person who moves to America to escape the Nazis during World War II a family who comes to America to find work*** 2. Example of (an) immigrant(s)? a
asked by Carl Wheezer 
math
3) You are fencing a rectangular puppy kennel with 25 ft of fence. The side of the kennel against your house does not need a fence. This side is 9 ft long. Find the dimensions of the kennel. 4) A gardener is planning a rectangular garden area in a
asked by name 
Social Studies
Which event indicates that deflation is occurring? 1a savings account can suddenly buy much more than before 2 the profits of a clothing factory increase rapidly. 3 The length of time it takes to pay off a home loan decreases by five years 4 A local
asked by Metimoku 
Physic
If the energy used to heat up a block of 2kg of copper is 115.8 kJ, what is the temperature it was heated to if the starting temperature was 100oC and the specific heat capacity is 386 J/kgK.
asked by mike 
Math, Algebra, Graphing Systems of Linear Equation
I'm confused about graphing or solving the linear equations for slope/intercept. Here is what I solved: 3x+2y=6 X4y=16 2y= 3x6 4y=1x16 Y=3/2+3 Y=+1/4+4  My answer for graphing the systems for the lines to intersect...well, they didn't
asked by Anonymous 
History
How was the conflict in Afghanistan different from other conflicts in the region for the united states? All I can think of is that it was the starting point of the war on terrorism, it was costly to move troops into, and it is still ongoing. Can someone
asked by Evan 
physics
a wooden board 10cm. thick floats in water (1000kg/m3) with its upper surface parallel to and 3cm above the water surface.what is the density of the wood?
asked by mr.black 
chemistry
A S.T.P.how many litres of hydrogen can be obtained from the reaction of 500cm3 of 0.5M H2SO4 with excess zinc metals?(molar volume of H2 at stp=22.4dm3).
asked by dolapo 
Geometry
A bag contains 9 red marbles, 4 blue marbles, and 7 yellow marbles. You randomly select three marbles from the bag. What is the probability that all three marbles are red when (a) you replace each marble before selecting the next marble, and (b) you do not
asked by TTUHelp 
ELA
I am suck and VERY confused about this question... please help! If you're not gonna tell me the full answer, at least give me a hint OR explain a little. Thanks! Reread the introduction to the play. The Straw, a play by Eugene O'Neill, is set in a factory
asked by ChildInNeed 
science
a garden pea plant bearing terminal violet flowers when crossed with another pea plant axial violet flowers produce axial, violet, axial white flowers in the ratio 3:1 . work out the cross showung the genotype of the parent plantand their progeny . name
asked by Binita 
physics
A 6.4 cm diameter horizontal pipe gradually narrows to 5.2 cm . When water flows through this pipe at a certain rate, the gauge pressure in these two sections is 30.0 kPa and 20.2 kPa , respectively
asked by help 
Math
Suppose dasha has 217 grams of sand in the bucket and 146 grams of shells. What is the mass of the sand and the shells? Write an equation to solve.
asked by Esna 
Chemistry
Give the formal change on the sulfur atom in a Lewis structure for the sulfate ion in which every atom satisfies the octet rule. 6 v.e  4 v.e. = formal charge of +2?
asked by Anon 
english
Please help if my answers are correct and let me know the correct answers below. thank you. Can we see (1) _____ the earth is a globe? Yes, we can. When we watch a ship that sails out to sea, we can see that the ship begins (2) _____. The bottom of the
asked by jessie 
mechnical
1. A small fly wheel fitted to a motor with a moment of inertia of 80 kg m² slows down from 9000 rpm to 5500 rpm in 7.5 seconds. For the fly wheel, calculate: • The rate of deceleration which you can assume to be constant • The braking torque. 2.If
asked by jake ccord 
coordinate geometry need help steve reiny
find the distance between these two point (3,4) and 2xy=0 show step
asked by yourim 
Math
a piece of a broken circular gear is brought into a metal shop so that a replacement can be built. a ruler is placed across two points on the rim, and the length of the chordd is found to be 14 inches. the distance from the midpoint of this chord to the
asked by Matty 
Calculus
The radius of a circle is increasing at a rate of 3 ft/min. If the radius is 0 when the time is 0, how fast is the circle's area changing when time is at 10 minutes?
asked by Anonymous 
Chemistry
The solubility of Chromium (II) Hydroxide is .0035g/100mL  Calculate the solubility product of Chromium (II) Hydroxide. I know that we have to find Ksp. but i do not understand how to make the Ksp equation to calculate the solubility product, if it is
asked by cool kids 
Physics
You have a 4.5 kg lead block at room temperature. Find the energy required to raise the lead's temperature to its melting point. Find the energy required to melt the lead once it's reached the melting point.
asked by Anonymous 
Math
My Father went shopping with a sum of money. He spent 1/2 of her money plus 50 pesos on a belt. He then spent 1/2 of the remaining money plus 30 pesos on a pair of sandals. Finally he spent 1/5 of what was left plus 20 pesos on a Tshirt . He was left with
asked by Jayson 
medical coding
a 58 year old is admitted to the hospital with severe anemia. He receives six units of fresh frozen plasma on the first day of admission. What HCPCS code(s) should be assigned? I am confused because when I look up the hcpcs code I see 2 codes that could be
asked by edith 
Calculus
S(12x+6)(3x^2+3x+5)^7 S=integral sign please help I am stuck :(
asked by Anonymous 
Social Studies
How did immigration affect immigrants and other Americans around 1900?
asked by Jess 
chemistry
A 40.0mL sample of 0.100 M HNO2 is titrated with 0.200 M KOH. Calculate the volume required to reach the equivalence point (in mL)
asked by dave 
Economic
Why does globalization sometimes cause job loss in developed nations? a. Globalization prevents companies from hiring more workers. b. The movement of jobs to other countries can cause unemployment. c. Working conditions in LDCs are often worse than in
asked by Jess 
electrical
use diagram and text to explain how junction diode is able to conduct an electric current in one direction. use each of the following terms. semiconductor crystal hole N type depletion region potential difference P type electron attraction
asked by luke 
Math
How to write 26 April 2017 in 5 letters without digit
asked by Hym 
Entrepreneurship
In which type of organization are there few or no levels of managers between the people who run the company and the employees? A. flat organization B. hierarchical organization C. matrix organization D. functional organization
asked by meh 
electrical
use diagram and text to explain how bipolar transistor operates in switch mode (fully on and off) use each of the following terms. semiconductor crystal Emitter N type Reversebiased junction forward voltdrop P type collector based any help
asked by Albert Einstein 
Economic
Which of the following is not a benefit of foreign trade? a. it allows each country to produce the goods for which they have the lowest opportunity cost. b. nations become dependent on each other c. specialization creates better products d. it is mutually
asked by Jess 
phy
1. A small fly wheel fitted to a motor with a moment of inertia of 80 kg m² slows down from 9000 rpm to 5500 rpm in 7.5 seconds. For the fly wheel, calculate: • The rate of deceleration which you can assume to be constant • The braking torque. 2.If
asked by mike 
chemistry HELP
a flask containing 50ml of 0.128M sodium acetate is titrated with 0.138M nitric acid. Calculate the initial ph of the acetate solution and calculate the ph after the addition of 24.9ml of nitric acid. pKa for acetate 4.757
asked by amy 
Math
What is the formula to finding slant height in a pyramid? Thanks!! :)
asked by Sunny Dreams <3 
algebra
The width of a rectangle ia two third of its length and the length exceeds the width by 7 cm. Find the perimeter of the rectangle
asked by Chebirth 
Calculus
Find the area of the region bounded by y = x^2, y = 0, x = 1, and x = 2. I tried the integral from 1 to 2 of x^2 and got 3 as the answer. I tried (integral from 0 to 1 of √y + 1) + (integral from 0 to 4 of 2  √y) and got 13/3. What is wrong with the
asked by Anonymous 
maths (variation)
different questions pls! Very urgent! 1) the force E needed to make a machine pull,a load is partly constant and partly varies as the load to be pulled itself.when the load is 20g,the force needed is 1.4n,where as the force needed for 30g load is 2N. Find
asked by chinaemerem 
science
(a) An airplane flies at constant speed along a straight line at an angle of 30' with the horizontal. The weight of the airplane is 80000 N and its engine provides a thrust of 100000 N in the direction of flight. Determine the lift force perpendicular to
asked by shubham kumar 
maths (variation)
different questions pls! Very urgent! 1) the force E needed to make a machine pull,a load is partly constant and partly varies as the load to be pulled itself.when the load is 20g,the force needed is 1.4n,where as the force needed for 30g load is 2N. Find
asked by chinaemerem 
Math (Physics)
A galaxy is moving away from Earth. The "blue" hydrogen line at 434 nm emitted from the galaxy is measured on Earth to be 458 nm . Part A How fast is the galaxy moving? Answer> v=____ c Part B How far is it from Earth based on Hubble's law? Answer>
asked by Dom 
Social Studies
How was the conflict in Afghanistan different from other conflicts in the region for the United States
asked by French Fries 
Math
Regular triangular pyramid has the slant height k=12 cm and lateral area A = 198 cm2. Find the length of the base edge.
asked by URGENT HELP!!!! 
Math
A typical around a track in the United States has a length of 440 yards. How many laps would need to be completed to run a mile
asked by Justin 
language arts
from the dramatization of Dragonwings by Lawrence Yep 1 Scene 9 Piedmont, later that day outside the stable. 2 MOON SHADOW: September twentysecond, Nineteenoughtnine. Dear Mother. I have bad news. We are going to lose Dragonwings before father can fly
asked by some one help 
The End of the Cold War
1. Which is the best example of how Reagan dealt with the Soviet Union from a position of strength? A. development of the strategic defence initiative B. U.s withdrawl of the salt II treaty from senate approval C. Reagan condemning martial law of Poland D
asked by Jen 
Chemistry
When the element A is burned in an excess of oxygen, the oxide A2O3(s) is formed. 0.5386 g of element A is treated with oxygen and 0.711 g of A2O3 are formed. Identify element A.
asked by Taylor Valerie 
Math
I bought 24 bananas. Each banana weight 50 grams. If the price for bananas was $5.50 per kg, how much did I pay? I already did 24*50= 1,200 but I can't figure out the rest.
asked by Margarita 
math
If 6/7 is expressed as an infinite decimal, what digit would be in the 327th decimal place?
asked by Lia 
calculus help please!
Water is poured into a bucket according to the rate F(t)=(t+7)/(t+2) , and at the same time empties out through a hole in the bottom at the rate E(t)=(ln(t+4))/t+2 , with both F(t) and E(t) measured in pints per minute. How much water, to the nearest pint,
asked by Hannah 
math
if a tree is 10 ft tall after 2 yr. and 25 ft tall after 5 yr. find the rate of change of growth if y is the height and x is the number of years
asked by missy 
Statisix
The mean price of photo printers on a website is $241 with a standard deviation of $60. Random samples of size 30 are drawn from this population and the mean of each sample is determined.
asked by April 
Physics
A radiation with frequency 8.5×10^14Hz is incident on a metal emitting photo electrons. Taking Planck's constant, determine the threshold wavelength.
asked by Jemie 
Economic part 2
Two countries shown in the chart ranked higher in overall development than the United States did. The United States had a higher per capita GDP than these countries. What factors accounted for the higher rankings of these countries? A. Iceland had the
asked by Kim 
science
Mary drives her car with a constant speed of 84 km/h. How long will she take to travel a distance of 168 kilometers?
asked by Graciana 
Language Arts
Please help! In an essay discuss the way in which Naomi Shihab Nye treats loneliness in "The Rider" What does loneliness mean to the speaker? How does bicycling help her leave her loneliness behind? Cite passages from the poem to support your points. My
asked by Michelle 
science
A 50kg object moving at 12 m/s has a momentum of 600 kg ´ g m/s. What is the mass of an object, moving at 4 m/s that has the same momentum?
asked by josh 
Calculus Help Please
Hello! I am struggling with this problem: Find the Taylor Series for sin(x2) centered at c=3. My work so far: sin(1)+(x3)cos(1)(1/2)(x3)^2sin(1)(1/6)(x3)^3cos(1)+(1/24)(x3)^4sin(1)... I know that the Taylor series for sign is typically: the
asked by Alice 
Geometry
A gasoline truck is a cylindrical tank(think "sideways" cylinder) that is 20 feet long and 6 feet in diameter. At the end of his work day, the driver measures the depth of gasoline in the tank at 18 inches. How many gallons of gas are in the tank?
asked by Nicholas 
English Grammar 5th grade
Answers for suffixes colorful, late, northern, troubled, straight, friendly, dry, safe, useful, flat, willing, early, hungry, blue, worst, sad. Thanks! For Helping me!
asked by Danny 
science
a train travels with a constant speed of 84 km/h. how long will it take to travel a distance of 210 kilometers?
asked by Graciana 
English
So I already post a question however I forgot to write the definition of "conventional phrases" so here it is:Meaning beyond literal meaning Ex. – if a character is making his/her bed or making the bed narrow, the speaker is preparing for death My
asked by Jamie 
Geometry
In Triangle XYZ, the measure of angle X is 5/8 as large as the measure of angle Y. If the measure of angle Z is 1/4 as large as the measure of the angle Y, what's the measure of all three angles. I've tried making up numbers to fit in the problem, but
asked by Anonymous 
social studies
What effect did John Hay's open door policy letters have on the imperial powers of Britain, France, Germany, Russia and Japan? a. It provoked the imperial powers to declare war on the United States b. It caused the imperial powers to restrict trade in
asked by Nico Nico help?? 
Geometry
In Triangle XYZ, the measure of angle X is 5/8 as large as the measure of angle Y. If the measure of angle Z is 1/4 as large as the measure of the angle Y, what's the measure of all three angles. I've tried making up numbers to fit in the problem, but
asked by Anonymous 
Math
While at the beach, dasha uses this bucket to make a sand castle. She fills the bucket 8 times with wate. How many liters of water does she use? Write an equation to solve.
asked by May 
Organic Chemistry
(i can't upload an image so i have to explain the spectrum) My spectrum has peaks at 0.85 ppm (integration = 1.49) 1.2 ppm (integration = 7.93) 1.5 ppm (integration = 1.11) 3.6 ppm (integration = 1) the only one that shows clear peaks is the one at 3.6
asked by Sarah 
Social Studies
Why was inflation a problem after World War II? A)Many people went into debt buying on credit without the income to pay in cash. B)Many men came home from the war without being able to get a job. C)Government controls ended,and prices of goods rose without
asked by Skye 
L.A
How does Twain use humor to present serious ideas? What does this reveal about Twain as a person? help
asked by Julio 
S.S
In the eastern orthodrax church icons, were???
asked by Julio 
Precalculus  Systems of Equations
I do not understand this problem. This is part of the question, but I think if I get this part, I'll get the rest. Determine the value(s) of r for which the system: (x^2)+(y^2)=(r^2) x2y=8 has one real solution. I can't get anywhere! We should solve
asked by Dave 
PreCalculus
Annual sales of fountain pens in Littleville are 2,000 per year and are increasing by 10% per year. How many fountain pens will be sold over the next five years? Use an integral to solve this problem. I just need help setting the problem up  thank you!
asked by Amanda 
Math
The denominator of a fraction exceeds the numerator by 7. If 3 is added to the numerator and 1 is subtracted from the denominator, the resulting fraction is equal to 4/5 . Find the original fraction. PLZ SHOW ALL WORK AND HURRY!!!
asked by Nate 
Science
A golfer hits a 0.05 kg golf ball with an impulse of +3 Ns. What is the change in velocity of the ball?
asked by Jenny 
sciaece
titration of sodium hydroxide with tetraoxosulphate4 acid.
asked by chem 
GEOMETRY
I need help finding the value of x could someone explain?
asked by anon 
business english
It is the case that good communicators advance more quickly in the company. What would be best revision of this sentence?
asked by Anonymous 
social studies
How were the Aborigine people affected when their children were forced to live with British families or in institutions? can someone help me with this question I have tried and went thru the study guide, talked to my teacher, and I just need a little boost
asked by hi 
Calculus
The divergence test applied to the series ∑n=1 to ∞ 3n/(8n+9) tells us that the series converges or diverges? I got that it was divergent because it was undefined at infinity, is my answer right?
asked by Regina 
Calculus
Find the first 5 partial sums of the series ∑n=2 to ∞ 1/(n(n+4))? I got 1/12 for the first one but when I put 1/21 for the next one it says it's wrong please help
asked by Janna 
ELA
What does the word objectionable mean in the following sentence? We'll meet tomorrow at noon, unless you find that objectionable. 1.appropriate 2.disagreeable 3.early 4.(unlikely)
asked by Help I need Somebody not just anybody 
Algebra
The path of a football thrown by a quarterback can be modeled be the equation y=0.04x^2+4x+5 where x is the horizontal distance in feet and y is the corresponding height in feet.find the interval on which the height is increasing.what is the average rate
asked by Anonymous 
Statistics
A company makes batteries with an average life span of 300 hours with a standard deviation of 75 hours. Assuming the distribution is approximated by a normal curve fine the probability that the battery will last . Less than 250 hours b. Between 225 and 375
asked by Karen 
english
please kindly help if my answers below are coorect.thank you . Teacher: So you want to learn _____ English? 1. To Talk 2.Talking 3.Speaking 4.To Speak ans. 2 2. Student: Yes, I want to be able to speak _____. 1.Good 2.Goodly 3.Proper 4.Well ans. 1 3.
asked by jessie 
Geometry
In Triangle XYZ, the measure of angle X is 5/8 as large as the measure of angle Y. If the measure of angle Z is 1/4 as large as the measure of the angle Y, what's the measure of all three angles. I've tried making up numbers to fit in the problem, but
asked by Anonymous 
Solid figures
A cylinderical 30 gallon container is 42 inches high,find the diameter of the cylinder. If 1 gallon= 231 inches.(Hint: Use proportion to find volume first.)
asked by Lea 
Math, Algebra, Graphing Systems of Linear Equation
I'm confused about graphing or solving the linear equations for slope/intercept. Here is what I solved: 3x+2y=6 X4y=16 2y= 3x6 4y=1x16 Y=3/2+3 Y=+1/4+4  My answer for graphing the systems for the lines to intersect...well, they didn't
asked by Anonymous 
english
Please help me to correct my answers below.let me know the correct answers. thank you 1. Justin (write) _____ his speech for the presentation now. I hope he finishes it before we meet. 1. is writing 2.will write 3.writes 4.has been writing ans.2 2. The
asked by jessie 
Math Please Help me
find the area of the parrallelogram with a base of 372.5 cm and a height of 17.6 cm A) 398.8 cm2 B) 327.8 cm2 C) 13,112 cm2 D) 6,556 cm2 My guess is B but i need help
asked by Megan 
Chemisty
Pouring liquid nitrogen onto a balloon decreases the volume of the balloon dramatically. Afterward, the balloon reinflates. Use kinetic theory to explain this sequence of events. The temperature of liquid nitrogen is 196 degrees Celsius
asked by Kelly