Questions Asked on
March 14, 2016

Math
1. The two rectangles are similar. Which is the correct proportion for corresponding sides? the two rectangles are 4 by 12 and 8 by 24. thanks! A) 12/8=24/4 B) 8/4=24/12 C) 12/4=8/24 D) 4/12=24/8 Is the answer C? I'm not quite sure about it but that's what
asked by Tim 
world history pls pls help help
How were the Aztec and Inca civilizations different in their public works projects? The Aztecs focused on agricultural innovations, while the Incas focused on road construction. The Aztecs focused on road construction, while the Incas focused on
asked by Oscar 
physics
figure 3.1 shows a rectangular concrete slab of weight 18000N. It rests on a brick wall and is the roof of a bus shelter. The concrete slab is 3.0 m wide. The wall is 2.5 m from the front of the concrete slab and 0.50 m from the back. The cables behind the
asked by Atta 
Maths
The 18th term of an A.p is 25.(a) find it's first term when the common difference is 2.(b) what term of an A.p gives 49
asked by Aliyu 
Language
I am a native of North America by Chief Dan Geirge. Man must love fully or he will become the lowest of the animals. It is the power to love that makes him the greatest of them all…for he alone of all animals is capable of love. Love is something you and
asked by Help! 
english
13. Which of the following sentences contains a comma splice? A. Our friend, who travelled from Tennessee, was quite tired when he arrived. B. We need help with organization, structure, and spelling. **C. The pots clanged to the kitchen floor, the kitten
asked by help 
Algebra 2
Designer Dolls, Inc. found that the number N of dolls sold varies directly with their advertising budget A and inversely with the price P of each doll. The company sold 1,800 dolls when $34,000.00 was spent on advertising, and the price of a doll was set
asked by Sandra 
Math
Alice earns 1.5 times her hourly rate for each hour she works after 40 hours in a week. She worked 50 hours this week and earned $660. What is her normal hourly rate? I know her average rate is $13.20, but I know that's not what I need to find and I
asked by Haley 
calculus
water is pouring into a conical cistern at the rate of 8 m^3/minute. If the height of the inverted cone is 12 meters and the radius of its circular opening is 6 meters, how fast is the water level rising when the water is 4 meters depth?
asked by Anonymous 
Math
20% of the children in sport club play tennis 25% of the children who play tennis also play rounder there are 8 children in the club who play both tennis and rounder how many children are there in the sport club together?
asked by Sebastian 
world history pls pls help help
What did special religious observances in both the Aztec and Spanish calendars provide for people? Work and income Education and training Law and justice Fun and entertainment is it d pls help
asked by Oscar 
english
II. By the end of Romeo and Juliet, Paris and Romeo, both of whom loved Juliet, are dead. The two characters, however, are very different. Write an essay comparing and contrasting the two men. The introduction of your essay should include an
asked by jess 
english help please!!
Read the following excerpt from H.G. Wells' The War of the Worlds, and answer the question that follows: The planet Mars, I scarcely need remind the reader, revolves about the sun at a mean distance of 140,000,000 miles, and the light and heat it receives
asked by Oscar 
introduction to psikologj
The __________ Gestalt principle explains why the figures, $$$AAA###, are perceived as three groups instead of nine separate figures. A. Closure B. Continuity C. Similarity D. Proximity
asked by htc 
math help pls pls
The correlation coefficient for blood pressure and amount of vegetables eaten in a group of people is −0.7. Analyze the following statement: High blood pressure is caused by not eating vegetables. Is this a reasonable conclusion? No; blood pressure and
asked by Oscar 
calculus
The surface area of a sphere initially zero increases uniformly at the rate of 26 cm^2/seconds. Find the rate at which the radius is increasing at the end of 2 seconds.
asked by Anonymous 
calc
A poster is to contain 50 square inches of printed matter with margins of 4 inches at the top and bottom and 2 inches at each side. Find the OUTER dimensions if the total area of the poster is the smallest possible.
asked by o 
Chemistry
at 500K, Kc for the reaction:H2 +D2 gives 2HD is 3.6 what is the value of Kc for 2HD gives H2 +D2
asked by Yashika 
Algebra HELP PLEASE
A cylinder has a radius of 4x + 2 and a height of 5x — 4. Which polynomial in standard form best describes the total volume of the cylinder? A.80pix^3+144pix^2+84pix+16pi B.20pix^2+26pix+8pi **** C.80pix^3+144pix^2+84pix16pi
asked by Cassidy 
mATH
Brittany is checking whether the pool she wants to buy will fit in her backyard. The pool with the patio measures 4 m by 5 m. Refer to the diagram below. a) Write an algebraic expression, in factored form, for the shaded area. b) When Brittany measures her
asked by Anonymous 
AP Physics
At their closest approach, Venus and Earth are 4.2x10^10m apart. The mass of Venus is 4.87x10^24kg, the mass of Earth is 5.97x10^24kg, and G=6.67x10^11Nm2/kg2. What is the force exerted by Venus on Earth at that point?
asked by Anonymous 
Health
What is the exchange of gases between the lungs and the blood? A. Internal respiration B. Posterior respiration C. External respiration D. None of the above i'm lost please help me.
asked by Martin1162 
psychology
Because you are bored one afternoon, you decide to try a little experiment. You open your eye very wide, extend your thumb, and then poke yourself in the e ure. Aside from being very foolish and in alot of pain, you may learn something about your eye when
asked by lily 
mathematics
A train takes 5mins to cover a distance of 3km between two stations P and Q. Starting from rest at P, it accelerates at a constant rate to a speed of 40km per hour and maintains this speed until it is uniformly brought to rest at Q. If the train takes
asked by Michael 
Physics
A train moving at a constant speed of 100km/h travels east for 40min, then 30o east of north for 20 min, and finally west for 30min. What is the train's average velocity for the trip? The answer is 30 km/h (E 40 N) but I keep getting 66.6 km/h (E 30 N)
asked by lomonoyan 
math
1. what is the term for data that are grouped closely together? a. outlier b. liner c. positive d. clustering 2. what association would you expect if you was graphing height and weight ? a. position b. nonlinear c. negative d. none of these 3. what
asked by UNKNOWN 
Health
What might happen if you lost a lot of your platelets? A. You might bleed for a longer time.
asked by Help pls quick 
Health
What is the exchange of gases between the blood and tissue cells? A. Internal respiration B. Posterior respiration C. External respiration D. None of the above A?
asked by Martin1162 
Math
How are hexagons a subcategory of a polygon?
asked by Bonnie the Horse 
english
what is the meaning of the Root bell
asked by joseph 
social studies
To which system of government is the federal system most similar? A  The Unitary system B  The confederal system C  The Unitary System D  The confenderal System ******
asked by Blake 
Chemistry
How do I prepare 1liter of a 93.1% w/w solution of sulfuric acid using 98% sulfuric acid and water?
asked by Pam 
maths
The first term of A.P. of 20th terms is 2and its last term is 59 . Find its 6th term from the end .
asked by komal 
Physics
A copper cylinder is initially at 20.0 oC. At what temperature in oC will its volume be 0.39 % larger than it is at 20.0 oC? The linear coefficient of expansion of copper is 28.6x106¢XC1
asked by Desperate Student 
Maths
9.9 rounding to the nearest meter
asked by Bob 
English
1. I'm worried about my English.  Why don't you practice speaking more? 2. I'm worried about English.  ( ) (Is this correct without 'my' before 'English? What is the difference between #1 and #2? What will be the answer to the question 2?)
asked by rfvv 
chemistry
If the solubility of gas in water is 5.0g/L when the pressure of the gas about the water is 2.0 atm, what is the pressure of the gas above the water when the solubility of the gas is 1.0 g/L?
asked by Lori 
Chemistry
3. The Haber¡VBosch process for fixation of nitrogen is one of the more important chemical reactions ever invented. Without the invention of this process, which is used to make ammonia for fertilizer, the world¡¦s population would not be as large as it
asked by Chastity 
Language arts, all right?
(During the break between classes, LEE approaches CHANDRA, who is getting a book out of her locker.) LEE: Hi, Chandra. CHANDRA: Hi, Lee. Are you getting used to this new school yet? LEE (hesitantly): Well, I’m finding my classes all right, but…
asked by Cameron 
math
Jorge has prepared his science project on a piece of poster board that has an area represented by the trinomial x2 + 5x – 50. a) What are the dimensions of the board? b) Write an expression for the perimeter of the board. c) What is the actual perimeter
asked by Anonymous 
Health
In order to reproduce, female sex cells must be fertilized by ________. A. Sperm B. Androgens C. Testosterone D. All of the above A? i'm just making sure i don't want to get a bad grade
asked by Martin1162 
Geometry
Please explain how I am supposed to get this I really don't understand, but I think that I know the answer. Thanks! 1. A conveyor belt carries supplies from the first floor to the second floor which is 12 feet higher. The belt makes a 60 degree angle with
asked by Blair 
intro to computers
Which logging category does not appear in Event Viewer by default?
asked by Anonymous 
Health
Endocrine glands ________. A. Do not have ducts to carry their product to a surface B. Do not have ducts to retain their product below surface C. Have ducts that carry their secretory product to a surface D. Have ducts to retain their secretory product
asked by Martin1162 
About Drama
1. Which of these sentences is using appositive phrase correctly? a. The Grand Canal, which is the oldest manmade waterway in the world, is still used today in China. **?? b. The Grand Canal in China is a manmade waterway, still used, that is the oldest
asked by Etta 
Math
Juan is making the shape of a rhombus. the first three angles are 80 degrees 80 degrees and 100 degrees what is the measure of the fourth angle? A. 60 B. 100
asked by keykat 
accounting,economics, mathematics,business studies
Identity three courses or study field you are interested in following after grade 12
asked by Anonymous 
Chemistry
If the percent (mass/mass) for a solute is 6% and the mass of the solution is 300 g., what is the mass of solute in solution?
asked by Lori 
Heath
Shortly after quitting a smoker will A. Develop shortness in breath B. Regain their senses of smell and taste C. Lose circulation in their hands and feet D. Develop rapid Heart beats**
asked by Tyler 
math
F(x)=9x^3+2x^25x+4 and g(x)=5x^37x+4. What is f(x)g(x)? Show all of your steps. I honestly have no idea how to do this. Can someone please explain what I have to do?
asked by sage 
Math
I have a moving truck that gets 12 klms per gallon how car would you go on a 40g tank
asked by Mike 
science
When the ray of light travels from air to glass slab and strikes the surface of separation at 90 degree , then it ..........
asked by rohit 
Health
What is the trachea commonly called? A. Voice box B. Vocal cord C. Windflute D. Windpipe A? i don't get this please HELP ME!!!
asked by Martin1162 
Chemistry
We did a titration of calcium hydroxide lab in chemistry, once with and once with edta, we have to calculate the solubility for both, and the ksp, for the hcl I did (concentration)*(Volume of hcl used) then that answer divided by two divided by the amount
asked by Dan 
Science
using the equation c3h5+5o2=3co2+4h2o, calculate the mass of c3h8 that can produce 100g of h2o
asked by Abednego 
world history pls pls help help
What caused the downfall of Ghana? a) Climate change and Berber battles b) Songhai invasions and disease c) Internal revolts d) Depletion of the salt mines is it b or c
asked by Oscar 
Math
If a punch recipe contains 40% of gingerale 25% of Orange Juice 20% of pineapple juice does 15% of sorbet how many cups of sugar are used in 8 cups of punch
asked by Molly 
chemistry
Suppose that the microwave radiation has a wavelength of 12 cm . How many photons are required to heat 255 mL of coffee from 25.0 ∘C to 62.0 ∘C? Assume that the coffee has the same density, 0.997 g/mL , and specific heat capacity, 4.184 J/(g⋅K) , as
asked by christina 
math
As dry air moves upward, it expands and in so doing cools at a rate of about 10C for 100m rise, up to about 12 km. a) If the ground temperature is 220, write a formula for the temperature at height x km. b) What range of temperature can be expected if a
asked by samantha 
Chemistry
Hi! My name's Isabow! can someone please help with this question? Thanks in advance :3
asked by Isabow 
physics
find the angle of projection at the horizontal range is twice the maximum height of a projecyile
asked by junoo 
ELA
WHAT TYPE OF WRITING IS THIS (pick on of these:cause&effect,compare&contrast,sequence,chronological order,problem&solution,descriptive) Volcanoes are a feared and destructive force for good reason. A volcano is like a pressure valve for the inner earth,
asked by Caitlyn 
chemistry
at certain altitude in the upper atmosphere, the temperature is estimated to be 100 degree celsius and the density just 10^9 that of the earth's atmosphere at STP. Assuming a uniform atmosphere at STP. Assuming a uniform atmospheric composition, what is
asked by taylor 
Calculus Related Rates
A balloon, 50 feet from an observer, is rising at 20 ft/sec. At 5 seconds after lift off 1. How fast is the distance between the observer and the balloon changing? 2. How fast is the angle of elevation changing? I need help on both questions. Thanks in
asked by Sally 
algebra
a class recorded the number of movies that each student watched during the summer. draw a histogram to accuratley display this data.
asked by alicia 
Physics
A uniform disk with mass 6 kg and radius 1.8 m is pivoted at its center about a horizontal, frictionless axle that is stationary. The disk is initially at rest, and then a constant force 31.5N is applied to the rim of the disk. The force direction makes an
asked by Desperate Student 
math
The demand function for a product is p=20−5q where p is the price in dollars when q units are demanded. Find the level of production that maximizes the total revenue and determine the revenue. q= units R= $
asked by ken 
chem
What is the pH at the titration of 40 mL of 1.5 M Tartaric acid with 30ml of 0.6 M NaOH?
asked by Evelyn 
Physics
An airplane propeller is 1.1 m in length (from tip to tip) and has a mass of 2.8 kg . When the airplane's engine is first started, it applies a constant torque of 8.1 N⋅m to the propeller, which starts from rest. What is the angular acceleration of the
asked by Desperate Student 
phyics
dicusselastic collision in one dimension.Obtain expression for velocities of two bodies after such a collision
asked by Priti 
Physics
A car starts from rest accelerate uniformly until it reaches a velocity of 30m/s after 5s.it traves with uniform velocity for 15s and is being brought to rest in 10 with a uniform retardation.dEtermine the following (a) the acceleration of the car.(b) the
asked by Omotola 
Maths
a survey showed that 50 students were surveyed. 42 liked football, 15 liked tennis, 12 liked both football and tennis. How many students did not like either football or tennis?42 take away 12 = 30 15 take away 12 = 3 therefore 33 students like either one
asked by jenny 
science
What is density of acetone at 23°C
asked by anjali 
Physics
A small 0.13 g bug stands at one end of a thin uniform bar that is initially at rest on a smooth horizontal table. The other end of the bar pivots about a nail driven into the table and can rotate freely, without friction. The bar has mass 0.3 g and is
asked by Desperate Student 
Electromagnetism
four 240ohms light bulb are connected in series, what is the total resistance of the circuit and what is their resistance if they are connected in parallel
asked by Donita 
English Literacture
In To Kill A MockingBird book by Harper Lee. What is the Boo Radley game? Who plays it and how do the different characters feel about it? In your response refer closely to the text to build a convincing argument.
asked by Hannah 
Calculus Related Rates
Two people leave from the same spot and walk at 4 ft/sec going north and 5 ft/sec northwest. At 30 seconds, how fast is the distance between them changing??
asked by Hailey 
Physics
A nail driven into a board increases in temperature. If we assume that 88.6 % of the kinetic energy delivered by a 2.3kg hammer with a speed of 7.80 m/s is transformed into heat that flows into the nail and does not flow out, what is the temperature
asked by Desperate Student 
math
the population of the world in the year 1650 was about 500 millions ,and in the year 2010 was about 6756 million .assuming that the population of the world grows exponentially ,find the equation for the population P(t) in millions in the year t
asked by dlamini zanele 
Physics
If the air temperature is the same as the temperature of your skin (about 30.0 oC), your body cannot get rid of heat by transferring it to the air. In that case, it gets rid of the heat by evaporating water (sweat). During bicycling, a typical 70.0kg
asked by Desperate Student 
math
Point A=(0,0)and B=(3,0).Which of the following choices of C will make traingle ABC a right traingle? I try to work it with vector for whe I subtract (0,0) to (3,0) and gives me (3,0) this only give me straight line.
asked by karabo 
English
Social studies is fun/difficult/easy/interesting/exciting. Math Is _________. Science is _________.  Other than the adjectives above, what other adjectives can we use for the blank? Can you name suitable adjectives?
asked by rfvv 
math
you need 2 gallons of paint to paint a mural. you already have 3/8 gallon yellow paint and 1/4 blue paint
asked by Anonymous 
chem12
2HI(g)H2(g) + I2(g) k eq= 8.0 2.0 mol of HI are placed in a 4.0L container, and the system is allowed to reach equilibrium. Calculate the equilibrium concentration of all three gases Initial 2HI=0.5 mol/L H2= 0 I2=0 change 2HI= 2x H2= x I2=x equilibrium
asked by George 
Math
I need help on a question. 30 is 75% of what number? I got it wrong on the homework and I can't really show my work on here since i cross multipled but it's okay if you can't help me.
asked by Cure Smith 
math
Julie wants to have a 90 average in her math class at the end of the year. She is trying to determine what she needs to make on her final exam for this to work. Everything is weighted equally and she currently has a 85 for her quiz average, a 80 for her
asked by hallie 
English Citations
Hi, I am writing an intext citation MLA style. My source has two authors (a husband and wife) with the same last name. Perdu owl shows me how to make an intext citation with 2 or more authors, but it does not indicate what to do if the two authors have the
asked by Dawn 
biology
1.intermediate waters is caused by? 2.deep water currents are important because? 3. water that sinks are? 4.water that rises are?
asked by anonymous 
math
Susie wants to make some hot cereal for breakfast.The directions say to use 3 cups of water with 1 cup of cereal to make 4 servings.Susie only wants 1 serving.How much cereal should she use?
asked by sandra 
math
If you place $2,000.00 in a saving account with an interest rate of 4.5% month versus an account with a rate of 3.75% month, how much more interest could you earn in that month using the first account?
asked by don 
Trigonometric Identities
Verify/prove that: sinAcosA/1cosA = sin^2/tanAsinA
asked by Kid 
Trigonometric Identities
Verify/prove that: (cotA+cotB)/(tanA+tanB)+(1cotAcotB)/(1tanAtanB) = 0
asked by Kid 
Health ASAP HELP
Hey. My mom is grilling me to get this test done. Please help. Some of the chemicals in tobacco products cause cancer. These products are called... (1 point) A. Carcinogens B. Stimulants*** C. Nicotine substitutes D. Cessation devices
asked by No one special 
Social studies
What was the impact of the New Deal programs on Georgians? Can anyone give me a link to help me?
asked by Amber 
11th grade physics
Multiple choice (show your work if any): 1) Two point charges q1=10^5 C and q2=9×10^5 C are placed respectively at two points A and B 40 cm apart. The electric field is null at a point C of [AB] such that : a) AC=50cm b) AC=10cm c) AC=20cm d) point C
asked by vicky 
Health
In addition to the urinary tract, what is considered an excretory organ? A. Heart B. Skin C. Larynx D. Muscles C?
asked by Martin1162 
Algebra
Find ALL triples of positive numbers c
asked by Katie 
Math
How many bags of fertilizer would I need to cover 1.68 acres
asked by Monica 
Physics
A concrete slab of mass 400 kg accelerates down a concrete slop inclined at 35degree. The kenetic friction b/n the slab and slope is 0.60.Determine the acceleration of block.
asked by Yaekob 
maths quadratic eqn
one of the roots of the quadratic equation x^2(4+k)x+12=0 fine, 1)the roots of the equation 2)the possible values of k please show your workings thanks in advance.
asked by p1 
Trigonometric Identities
Verify/prove the following: (sinA+tanA)/(1+secA) = sinA ______________________________ tanu = 1+sinucos^2u/cosu(1+sinu) __________________________________ cotu = (2+cscu/secu)2cosu ______________________________ tanAsinA/tanA+sinA = tanAsinA/tanAsinA
asked by Kid 
Health
The food molecules that cannot be ________ need to be eliminated from the body. A. Ingested B. Digested C. Regurgitated D. All of the above A? plz help don't get this quiestion
asked by Martin1162 
math
a student’s grade in a class is simply the mean of five 100point exams a. If the student has grades of 77, 73, 97, and 89 on the first four exams, what is the students’ grade before taking the last exam? b. What is the lowest score that the student
asked by Debbie 
Social studies
Why were military and the defense industry important to Georgia? I'm not sure?
asked by Amber 
science
how does the weight placement in a rocket effect the distance
asked by santi 
math
how to right this in scientific in scientific notation. (2.74×10^7)+(5.6×10^7)=
asked by Ginahelen 
physics
A 13 gram sample of an unknown metal at 26.5°C is placed in a Styrofoam cup containing 50.0 grams of water at 88.6°C. The water cools down and the metal warms up until thermal equilibrium is achieved at 87.1°C. A 10 percent of heat lost by water is
asked by Ehab 
Algebra
What is the GCF of the terms of 8c^3+12c^2+10c ? I am confused between 2 and 2c. Which one is it?
asked by Kaai97 
Math
Using Normal Tables, Find The Probabilities Of P( 1.50 < Z < 2.50)
asked by Biodam 
Physics
Women and overweight people often experience backpain. Let us explore the reason for this. Assume the women has a weight of 60.0 daN before pregnancy. Suppose she gains 10.0 daN during pregnancy, due to weight of the fetus, placenta, amniotic fluid, etc.
asked by vanessa 
Microeconomics
You are asked to examine the market for luxury housing in the southern Westchester town of Quietville. This kind of housing is said to be a normal good. In Quietville a substantial proportion of the people who buy luxury homes are people who work in the
asked by Josh 
biochem'
A flask contains 300 ml of 0.4M NaCl. ¿How many moles of NaCl are in 15ml?
asked by jess 
Algebra
There is a circular garden in the middle of a square yard. The radius of the circle is 4x. The side length of the yard is 20. what is the area of the part of the yard that is not covered by the circle? a. 4x(5) b. 8x^2(5pi) c. 16x(25+pi) d.
asked by Kaai97 
HELP READING!!!!!!!!!!
Poets use imagery and words with different connotations and denotations. In a paragraph, define and provide an example of imagery, connotation, and denotation. Then, explain how poets use these elements to contribute to tone in a poem. Support your answer
asked by Girl with questions. 
MATH
NEED HELP WITH THIS THANKS!!!TOGETHER, RYAN AND MAX HAD 195 BASEBALL CARDS. ONCE MAX GAVE 3/8 OF HIS CARDS TO ANOTHER FRIEND, HE AND RYAN HAD AN EQUAL NUMBER OF CARDS. HOW MANY MORE CARDS DID MAX HAVE THAN RYAN IN THE BEGINNING?
asked by TYSON 
Chemistry
You start with a 20ml mixture of two compounds. After distillation you end up with 10ml of distillate 1 and 8.4ml of distillate 2. What is the relative volume percent of each compound in the predistilled mixture? (Do I just do: volume percent of
asked by Danny 
Math
please show me how to do this... A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn: 12 + 42 + 72 + . . . + (3n  2)2 = n(6n^23n1)/2 Also, please show
asked by Taylor 
Physics
A 313 μF defibrillator capacitor is charged to 4.94×103 V. When fired through a patients chest, it loses 95 % of its charge in 40 ms. What is the resistance of the patients chest?
asked by Anon 
English
In Romeo and Juliet, why doesn't Juliet want to marry Paris? 1: She is already married 2: She is in love with Romeo 3:Paris hasn't won her affection 4:All of the above I'm torn between 2 and 4..please help. I know she is married at the end of act II, but I
asked by Marylyn 
math
Syntax error from line 1 column 53 to line 1 column 60. Unexpected '0'. expressed as the quotient of two integers in simplest form? I don't know?
asked by Anonymous 
Calc/Physics
Find the following questions at the depth of 25\text{m}. The gravitational acceleration is g = 9.8\text{m/s}^2 and the density of water is \rho = 1000\text{kg/m}^3. a. Find the hydrostatic force on a square steel plate with sides 2\text{m} placed
asked by Paul 
physical chemistry
the rate constant for a reaction at 30 degrees is found to be exactly twice the value at 20 degrees. calculate the activation energy
asked by ntsika 
Chemistry
Why does a compound with a high vapor pressure boil at a lower temperature than a compound with a lower vapor pressure?
asked by Anonymous 
math
Mrs coombs have 10 kids and need to split 5/8 of bacon
asked by tenisha shy 
Chemistry
List three ways in which the yield of ammonia in the reaction above can be improved for a given amount of H2.
asked by Chastity 
Math
y6¡Ý12 Solve this pleae.
asked by LOVE 
Maths
How to convert 13million to scientific notation?
asked by Lavanya 
11th grade physics
Multiple choice (show your work if any): 1) Two point charges q1=10^5 C and q2=9×10^5 C are placed respectively at two points A and B 40 cm apart. The electric field is null at a point C of [AB] such that : a) AC=50cm b) AC=10cm c) AC=20cm d) point C
asked by vicky 
English
In a classic tragedy what causes the downfall or destruction of the hero? A: The actions of the antagonist or villain? B: The hero's nobility and royal bloodline? C: The hero's personal defect in their lives? I pick c is this correct..thank you
asked by Marylyn 
math
Mrs Carter class has 30 kids and need to split 7/8 slices of bacon
asked by tenisha shy 
english
This question is based on the following passage, which contains some errors. The sentences are numbered to help you answer the question. (1) As soon as Loraine arrived in town, she phoned Dee. (2) However Dee was not home. (3) Discouraged, by this Loraine
asked by help 
math
Five runners are entered in a race. Assuming there are no ties, in how many different ways can first and second places be awarded?
asked by pj 
English
In Romeo and Juliet, why doesn't Juliet want to marry Paris? A: She is all ready married B: She is in love with Romeo C: Paris hasn't won her affection D: All of the above I'm torn between B and D. Please help...this paper has been haunting me...I need to
asked by Marylyn 
Health
If you don't like another person's qualities it is best not to spend time with them? True False I think it is true...Is this correct?
asked by Marylyn 
mathsequadratic eqn
one of the roots of the quadratic equation x^2(4+k)x+12=0 find, 1)the roots of the equation 2)the possible values of k please show your workings thanks in advance.
asked by p1 
math
Mrs Carter class is having a pizza party and have 15 kids and need to split 5/8 of pepperoni
asked by tenisha shy 
math
The cloth has an area of 20 square feet. What could be the dimensions of the piece of cloth?
asked by red 
Health
Why does the blood returning to the heart have very little oxygen in it? A. The heart is not pumping oxygen fast enough . B. The cells throughout the body use the oxygen .
asked by Help pls quick 
Health
Every ________, nerve impulses stimulate the breathing process, or ventilation, which moves air through a series of passages into and out of the lungs. A. 5 to 7 seconds B. 3 to 5 seconds C. 1 to 3 seconds D. 7 to 9 seconds B?
asked by Martin1162 
life orientation
identify three courses or study fields
asked by silent 
Health
Which organ is part of both the respiratory system in the digestive system? A. Epiglottis B. Nose C. Larynx
asked by Help pls quick 
Biology
Number of ATP by oxidative phosphorylation from a 24 carbon fatty acid? I have 96 because fatty acids go to CoA (2ATP) and the Krebs (22ATP). Glucose has 6C and so you add 2+22ATP and multiply by 4 to get 96. Is this right? If not, how do I figure this
asked by Anonymous 
physics
After placing a 0.500 m dent in the landlords van, the two management students are told they and their 200 daN beer freezer have to go. The new ramp is inclined at an angle of 32.1 o relative to the horizontal. The coefficient of static friction between
asked by tom 
physics
Women and overweight people often experience backpain. Let us explore the reason for this. Assume the women has a weight of 60.0 daN before pregnancy. Suppose she gains 10.0 daN during pregnancy, due to weight of the fetus, placenta, amniotic fluid, etc.
asked by tom 
math
In Mrs.Marshall's classroom, 6/7 of the students play sports. Of the students who play sports, 4/5 also play an instrument. If there are 35 in her class how many play sports and an instrument?
asked by Anna 
Language Art's HELP ASAP!
12.)Which of these strategies would be most effective in helping conclusions about characters in a play? A.)Trying to picture each character's costumes B.)Focusing on one character's lines in particular C.)Observing characters' interactions with one
asked by #FreeGucci 
Health
Which profession should a person who suffers from chronic asthma probably stay away from? A. Criminal attorney
asked by Help pls quick 
English
In Act II we see Friar Lawrence dealing with herbs and flowers and talking about their chemical properties. This is what literary device? 1:Simile 2:Foreshadowing 3:Personification My answer is foreshadowing..is this correct? Thank you
asked by Marylyn 
English
Shakespeare is known for writing in what style? 1: Prose 2:Lambic Pentameter 3: Parliament My pick is #2 is this correct?
asked by Marylyn 
solomon mahlangu high
Identify three courses or study fields you are interested in following after grade12 write them down in order of preference
asked by martha 
history
list a emotional, and social benefit of physical activity
asked by day 
probability theory
in how many ways could a band of singers and 5 drummers be selected from 4 singers and 6 drummers.of a band of 7 members are to be selected from a team of 4 singers and 6 drummers.find the probability of including 2 singers
asked by mojisola 
English
Sonnet 130 by Shakespeare My mistress’ eyes are nothing like the sun; Coral is far more red than her lips’ red; If snow be white, why then her breasts are dun; If hairs be wires, black wires grow on her head. I have seen roses damask’d, red and
asked by Justine 
Physics
What amount of energy is needed to change 1 kg of O degrees Celsius ice to 10 degrees Celsius water?
asked by Logan 
physics
A 313 μF defibrillator capacitor is charged to 4.94×103 V. When fired through a patients chest, it loses 95 % of its charge in 40 ms. What is the resistance of the patients chest?
asked by shawn 
Math
Joely's Tea Shop, a store that specializes in tea blends, has available 45 pounds of A grade tea and 70 pounds of B grade tea. These will be blended into 1 pound packages as follows: A breakfast blend that contains one third of a pound of A grade tea and
asked by Hi 
ratios/algebra
During class elections 64 students voted for candidate A .if the ratio of votes for candidate a is to the votes for candidate B was 8:5,how many votes did candidate B receive?
asked by chris 
Physics HW Plz help
What is the frequency of a blue light with a wavelength of 487nm?
asked by Student Lexi 
english help please!!
Read the following paragraph and answer the question that follows: Musical theatre changed my life. When I was a child, I was always a problem for my parents. I never wanted to go to school, study my homework, or do my chores. No one knew how to control
asked by Oscar 
child development
Activity I can do for Intasc Standard 3: Learning Environment and for Intasc Standard 2 Learning Difference For #2 I did "Identifying Colors."(Bananas are yellow, cherries are red) what can i do for #3
asked by Reina Bonilla 
physics 11th class
Calculate the power of a crane in watts which lifts a man of 100kg to a height of 10m in 20sec
asked by Naman 
Health
The ________is about the size of a walnut and encircles the urethra as it leaves the urinary bladder. A. Testis B. Gonad C. Thyroid gland D. Prostate gland D?
asked by Martin1162 
Drama
[Piedmont, later that day outside the stable...] What does this line tell the reader? a. which character are onstage **?? b. where and when the scene takes place c. how the characters are to act d. whether this is a comedy or tragedy
asked by Etta 
Geometry
Triangle ABC and
asked by Susanne 
math
Eben rolls two standard number cubes 36 times. Predict how many times he will roll a sum of 4.
asked by Anonymous 
Maths
20 pupils,8 males, 3 males wear glasses whats the probability that the first student is mals and wears glasses?
asked by Sinead 
Geometry
Two model trains begin at the toy train station and travel continuously on two circular tracks of equal length. The first train completes a circuit in 20 seconds and the second train in 15 seconds. If both trains, leave the station at the same time, after
asked by Ashley 
math
A TRex has two children. Their ages are consecutive integers that total 33. How old are they both?
asked by kelton 
math
Luis draws 1 card from a deck, 39 times. Predict how many times he draws an ace. John and O'Neal are playing a board game in which they roll two number cubes. John needs to get a sum of 8 on the number cubes to win. O'Neal needs a sum of 11, if they take
asked by Anonymous 
Math
Arrange these numbers from least to greatest: 2 over 5 comma text end text − 3 over 7 comma text end text 2 over 3. A. 2 over 5 comma text end text − 3 over 7 comma text end text 2 over 3 B. − 3 over 7 comma text end text 2 over 5 comma text end text
asked by Marc 
Biology
How much ATP energy would you get from a tripeptide that, upon hydrolysis and deamination, makes two acetyl CoA and one pyruvate molecule and undergo aerobic respiration?
asked by Anonymous 
Science Experiment Help (pt 2)
did the experiment (correctly this time), still need help with the answer to this question: What other mixture can be separated by crystallization? thnx for the help!
asked by Aly 
English
In classical tragedy what causes the downfall or destruction of the hero? 1: The actions of the antagonist or villain 2:The hero's nobility and royal bloodline 3: The hero's personal defect in their lives My choice is #2 is this correct?
asked by Marylyn 
Language
of these sentences is using appositive phrase correctly? a. The Grand Canal, which is the oldest manmade waterway in the world, is still used today in China.•• b. The Grand Canal in China is a manmade waterway, still used, that is the oldest in the
asked by Help! 
Health
What does estrogen promote? A. Development of testes B. Development of breasts C. Development of lips D. All of the above i don't know this one
asked by Martin1162 
Math
How many possible lunch combinations can I choose from with 12 meats, 20 side items, 7desserts, and 8 drinks?
asked by Lillian 
math
The ratio of cats to dogs at jazzy Jen's pet store is 3 to 5 .If there are 24 animals at the pet store,how many of them are cats?
asked by lilly 
Working with children with special needs
A teacher wants to know why Ben, a preschooler, wakes up every morning at about 3:00 and refuses to go back to sleep. The teacher should
asked by Camryn 
MATH
1. What data are represented by the stemandleaf plot below? 3  7 8 9 4  1 3 7 5  2 4 Key: 4  1 means 41 a. 37, 38, 39, 41, 43, 47, 52, 54 b. 73, 83, 93, 14, 34, 74, 25, 45 c. 7, 8, 9, 1, 3, 7, 2, 4 d. 37, 38, 39, 14, 34, 74, 25, 45 2. Find the mode
asked by HELP ASAP 
Math (geometry)
Earth's diameter at the equator is about 7926 miles. A jet flies 550 miles per hour. How long would it take the jet to fly halfway around the equator?
asked by Skylar(7th grade) 
English
What's your personality? What are you like? 1. I'm kind of introverted. 2. I'm kind of introvert. 3. I'm kind of introvertish. 4. I'm kind of extroverted. 5. I'm kind of extrovert.  Are the answers all grammatical? Which ones are commonly
asked by rfvv 
mathslit,business,economics
In orders to study law at bloemfontein university how many points should I get
asked by tshimololo 
Math
How many groups of 2/3 are in 2?
asked by Amy 
Math
A threedigit integer has been divided by 9. As a result, the sum of the digits decrease by 9. How many threedigit numbers possess this property?
asked by Amitabha 
Math
Given a number, a strange calculator can only do the following: multiply it by 2 or by 3, or to raise it to the power 2 or 3. Starting with the number 15, what can be obtained by applying this calculator 5 times consecutively? A) 2^8 . 3^5 . 5^6 B) 2^8 .
asked by Amitabha 
Health
The ________ develops in the pregnant female as a source of nourishment and gas exchange for the developing fetus. A. !@#$%^& B. Uterus C. Fallopian tubes D. Placenta D?
asked by Martin1162 
11th Grade physics
Multiple choice (show your work if any): 1) Two point charges q1=10^5 C and q2=9×10^5 C are placed respectively at two points A and B 40 cm apart. The electric field is null at a point C of [AB] such that : a) AC=50cm b) AC=10cm c) AC=20cm d) point C
asked by vicky 
Physics
The mass of a star is 1.89·1031 kg and it performs one rotation in 28.9 days. Find its new period (in /days) if the diameter suddenly shrinks to 0.93 times its present size. Assume a uniform mass distribution before and after.
asked by Bristol 
physic
A concave makeup mirror is designed so that a person 29 cm in front of it sees an upright image magnified by a factor of two. What is the radius of curvature of the mirror?
asked by megan 
Unscramble
Can you unscramble these, ymrpitahl help!
asked by Anonymous 
Math
Oscar has 10 of his friends over he want to give them each 4/5 each of cake how many whole cakes does he need to feed them?
asked by Arturo 
Math
The length of a rectangle is equal to triple the width. Find the dimensions of the rectangle if the perimeter is 72 cm
asked by Ava 
Math again!!!!
What is the total cost of 2 sweaters at $13 each and 2 shirts at $8 each
asked by Vanessa 
Math
mike can drive his car 33 miles with one gallon of gas does he need to drive 15000 miles?
asked by Katy 
Science
Two equal vectors are working at a point.The resultant is equal to one of those vectors.Prove that the resultant bisects the angle between the vectors.
asked by Julekha 
Math
Alex made a sketch for a homemade soccer goal he plans to build. The goal will be in the shape of a triangular prism. The legs of the right triangles at the sides of his goal measure 4 ft and 8 ft, and the opening along the front is 24 ft. How much space
asked by Carol 
Life Science
The process by which cellular material is divided between two new cell. (2 words)
asked by Isabella 
math
In a fruit salad,12 strawberries are used for every 5 peaches. Flora uses 85 of these fruits altogether to make a large fruit salad. How many strawberries does she use?
asked by anonymous 
math
The first 5 minutes cost $3, and each minute after that costs $0.17. How much did it cost if they talked for 24 minutes.
asked by kuna 
Health
The food molecules that cannot be ________ need to be eliminated from the body. A. Ingested B. Digested C. Regurgitated D. All of the above C?
asked by Martin1162 
Math Angeles
How can you use a right angle to determine the classification of another angle
asked by Keeyanah 
math
yan gets allowance money every day. On Monday he gets 5 cents. On Tuesday he gets 12 cents. On Wednesday he gets 19 cents. On Thursday he gets 30 cents. On Friday he gets 35 cents. How much will he get on Saturday? How much will he have by the 12th day?
asked by bea 
Language Arts
Hi! Can anyone check my answers please? Which type of sentence is shown below? Meet me outside after your ballet class. A. exclamatory sentence B. declarative sentence C. interrogative sentence D. imperative sentence**** Which of the following sentences is
asked by JDOGYO 
math
marta is a sales associate at a perfume shop.she earns 400 a week plus a 4% commission on sales.write an inequality to find the minimum amount that she needs to sell to earn at least $460 in a week?
asked by amber 
ChemistryDrBob222
Where did you get 5E5. Is this how you set it up? 0.01 x 0.05 = 5E4 If so, is it supposed to be 5E4 instead of 5E5? What is the equilibrium constant for a weak acid HA that dissociates 1% at an initial concentration of 0.05 M according to the following
asked by Nevaeh 
calculus
Find the radius of the base and altitude of a right circular cone of maximum volume that could be inscribed in a sphere at radius 10 meters.
asked by Cheska 
Chemistry
What is the mass of Na2SO4 is needed to make 1.5 L of 3.0 M solution? Na=23 g.: s = 32 g: O=16g.)
asked by Lori 
Calculus
Use the integral identity: ∫(a1) (1/(1+x^2))dx=∫(11/a) (1/(1+u^2))du for a>1 to show that: arctan(a)+arctan(1/a)=π/2
asked by Andre 
Geometry
Two model trains begin at the toy train station and travel continuously on two circular tracks of equal length. The first train completes a circuit in 20 seconds and the second train in 15 seconds. If both trains leave the station at the same time, after
asked by Ashley 
ChemistryDrBob222
Is the answer for part c 0.91? A 1.0 L ball containing Ar at 5 atm is connected to a 10.0 L ball containing N2 at 2atm. A)Calculate the partial pressures and mole fractions of Ar and N2 after the valve is opened and the gases are allowed to mix (they fill
asked by Nevaeh 
PreCalc
If tan theta equal  square root of 22 divided by 11 and pie/2 is less than theta and theta is less than pies, what is the cos of theta in simplified rationalized form
asked by Stephanie 
ChemistryDrBob222
I got an answer of 1.34 x 10^3 KJ/mol. A 10.00 mL aliquot of 0.100 M NaOH is added to 15.00 mL of 0.100M HCl in a coffee cup calorimeter. The initial temperature of the two dilute liquids were both 25.0 degrees C and the final temperature of the mixture
asked by Nevaeh 
Happy Pi Day, 2016
http://abcnews.go.com/Technology/piday2016extraspecial/story?id=37630134
asked by Ms. Sue 
physics
When the ray of light travels from air to glass slab and strikes the surface of separation at 90 degree , then it ..........
asked by rohit 
Math
The bottom of a shopping bag measures 8 inches by 10 inches. The bag has a height of 12 inches. How much paper is needed to make the bag? (1 point) 256 in2 296 in2 512 in2 ** 592 in2 A cube has a side length of x feet. Which expression represents the
asked by Rayleigh 
math
what is 2 1/3 plus 1 3/4? ......................................
asked by Chip