physics please HELP !
130,975 results, page 57

English
Which of the sentences below using direct address is punctuated correctly? (1 point) Please come with me, Sarah, and Tom, to pick Mom’s birthday present. Please come with me, Sarah and Tom to pick Mom’s birthday present. Please come with me, Sarah, and Tom to pick Mom’s ... 
English Proofread
Can you please read my first paragraph for my cover letter. The writer had to identify self and purpose in the 1st paragraph. Can you please give me feedback and check my grammar? Thank you help is greatly appreciated Your advertisement for any entrylevel position as an ... 
PhysicsPlease check my explanationI need to know
Posted by Juliette on Sunday, October 10, 2010 at 4:58pm. HiI have a questionwe're studying Newton's Laws and my question is: If I have a constant, nonzero force, how does the accleration change as the mass is changed. I think it changes proportionallybecause the formula F... 
Physics
In the Bohr model of the hydrogen atom, the speed of the electron is approximately 2.41 × 106 m/s. Find the central force acting on the electron as it revolves in a circular orbit of radius 4.92 × 10−11 m. Answer in units of N. i used 9.10938188 × 1031 as my mas and ... 
PHYSICS (please help)
A solid, uniform disk of radius 0.250 m and mass 51.1 kg rolls down a ramp of length 4.60 m that makes an angle of 18° with the horizontal. The disk starts from rest from the top of the ramp. a)Find the speed of the disk's center of mass when it reaches the bottom of the ramp... 
physics
I need help with this problem so please help me. 1. A certain photoelectric surface has a threshold frequency of 6.2*10^14 Hz. A. How much kinetic energy is required to produce an electron emission? B. if the surface is illuminated with light that has a frequency 7.1*10^14 Hz... 
Physics
A car travels in a straight line with an average velocity of 80 km/hr for 2.5 hours and then with an average velocity of 40 km/hr for 1.5 hours. a. Calculate the largest displacement for the 4hour trip. b. Calculate the largest average velocity for the total trip in ... 
physics vectors
In the sum A+B+=C, vector A has a magnitude of 11.4 m and is angled 48.4 degrees counterclockwise from the +x direction, and vector C has a magnitude of 14.8 m and is angled 16.6 degrees counterclockwise from the xdirection. What are the A) magnitude and B) the angle (... 
Physics  URGENT
A car is speeding at constant velocity of 30ms1 in an 80kmh1 zone as it passes a stationary police motorcycle hiding. The motorcycle starts to accelerate at 5ms2 at the same instant the car passes it and continues for 8 seconds. It then stops accelerating and maintains its ... 
Physics  URGENT
A car is speeding at constant velocity of 30ms1 in an 80kmh1 zone as it passes a stationary police motorcycle hiding. The motorcycle starts to accelerate at 5ms2 at the same instant the car passes it and continues for 8 seconds. It then stops accelerating and maintains its ... 
physics please
there are nearly (pi) x (10^7) seconds in one year. find the percentage error in this approximation, where percentage error is defined as abs value[ (assumed value  true value)/ true value] x 100% to find the true value I did: (365 days/yr) x (24 hours/1 day) x (60 minutes/... 
physics formula check please
A mirror produces an image that is located 28.0 cm behind the mirror, when the object is located 9.90 cm in front of the mirror. (a) What is the focal length of the mirror? (b) Is the mirror 1  concave or 2  convex? (Give the number of the correct answer.) The refractive ... 
Physics
Cx = 13.2 m/s, Cy = 10.4 m/s Direction in ° counterclockwise from the positive xaxis & Bx = +100.0 m, By = 106.0 m Direction in ° counterclockwise from the positive xaxis Also Dx = +3.2 m/s2, Dy = +7.6 cm/s2 Find magnitude m/s^2 & Direction in ° counterclockwise from ... 
Physics
Can you please explain further because I don't understand? Two parallel slits are illuminated by light composed of two wavelengths, one of which is 645 nm. On a viewing screen, the light whose wavelength is known produces its fifth dark fringe at the same place where the light... 
Physics
A police car stopped at a set of lights has a speeder pass it at 100 km/h. If the police car can accelerate at 3.6 m/s2, a) how long does it take to catch the speeder? b) how far would the police car have to go before it catches the speeder? c) what would its speed be when it ... 
Physics  correction  significant digits
1) How many SD's? a) 5.7 = 2 SD b) 235.12 = 5 SD c) 8.07 = 3 SD d) 0.0032 = 2 SD e) 0.0150 = 3 SD f) 1.39x10^5 = 3 SD g) 15.200 = 5SD h) 1070 = 3 SD 2) Calculations  Please check the SDs a) 15.3 + 25.03 = 40.33 = 40.3 b) 1200 + 63 = 1263 = 1300 c) 4.78  1.2 = 3.58 = 3.6 d) ... 
Physics ASAP PLease
Consider two charges Q and q separated by a distance d . If the potential at the point p (which is in right side from both charges) is V=0 , we can conclude (one answer only): a)no net force would act on a test charge located at P . b)Q and q must be same sign but different ... 
GEOMETRY CIRCLES PLEASE
HELP ME PLEASE. 1.An isosceles triangle with each leg measuring 13 cm is inscribed in a circle . if the altitude to the base is 12 cm find the radius of the circle 2. Circles a and b are tangent at point c. p is on circle a and q is on circle b such that pq is tangent to both ... 
to angie
Please do not post responses to other students unless you can help them very proficiently with their specific problem or question. This is not a website for "personals"  so please don't post any personal information about yourself or ask personal informtion of others. Thanks... 
science and history
How did the apollo 11 space mission pave a way for 1.) technology 2.) science 3.) America 4.) space exploration Please note that we don't do students' homework for them. Once you have come up with a response to these questions, please repost and let us know what you think. ... 
AED 200
Can anyone help me with these. I want different views please. In separate paragraphs describe your approach to classroom organization, motivation, discipline, and teaching styles, given your current perspective. Contrast each element of this paper with the opposite approach (... 
Normal Public High School Chemistry
Please assist me in answer this question please show me all the formulas used and the units and how to convert them if needed. Thank You. If the halflife of Ba (140, 56) is 12.75 dyas, how many atoms of (140, 56) Ba will be left after 9 weeks if there were initially 2.4 mol ... 
Science (7th Grade)
My science teacher is really mean. And if I don't have the following questions done, I have a suspention! Please help!! 1) What discovery demonstrated that atoms are not the smallest particles? 2) Dalton did what to his theory that Democritus did not? 3) It is important for ... 
calculas(URGENT..... PLEASE....)
1) A region is bounded by the line y = x and the parabola y = x2  6x + 10. What is the volume of the solid generated by revolving the region about the xaxis? would u please give the explanation with a detailed steps to the answer because i am not able to reach the final ... 
AlgebraPlease check work
I've reworked this and added on is any of it correct?Totally confusedlearned this today and I don't get itPlease help Write the standard form of 9x^2 + 4y^272x+16y+124=0 I think the first step is to take the constant to right side so I have: 9x^2 + 4y^272x+19(x^28x+16) + ... 
Algebra please explain!!!
A boat costs $92,000 and depreciates in value by 15% per year. How much will the boat be worth after 10 years? 18,112.45 78,200 18,941.98 69,000 Is the answer the first one? Could somebody write down the steps for me please? Pleas help asap! Thanks 
Please check history
Please check! What was the effect of the depression of the 1890s on South Carolina? a. Gold was discovered in Alaska. b. Many banks failed and railroads went bankrupt. c. Paper money was no longer backed by gold.*** d. Inflation caused farmers to run large debts. 
Physics
A uniform magnetic field points north; its magnitude is 3.5 T. A proton with kinetic energy 6.0 × 1013 J is moving vertically downward in this field. What is the magnetic force acting on it? This is what I've done. The answer is incorrect. Please help me find out why. 3.5T ... 
Physics
A cannon is rigidly attached to a carriage,which can move along horizontal rails but is connected to a post by a large spring, initially unstretched, of force constant 60000 N/m. The cannon ﬁres a 305 kg projectile at a velocity of 174 m/s directed 38.9◦ above the... 
math for belinda to help me please
1.x^29x+14 2.GCF of m^2n^2+3m Oh haha ignore the new question. For the first one, set it up: (x )(x ) Now, think of two numbers that are multiplied to 14. They have to either both be positive or both be negative to get positive 14. They also must be able to add up to 9. Let ... 
physics help please!!!
From what maximum height can a 61 kg person jump without breaking the lower leg bone of either leg? Ignore air resistance and assume the CM of the person moves a distance of 0.65 m from the standing to the seated position (that is, in breaking the fall). Assume the breaking ... 
physics help
The pole vault landing pad at an Olympic competition contains what is essentially a bag of air that compresses from its "resting" height of 1.1 m down to 0.1 m as the vaulter is slowed to a stop. (a) What is the time interval during which a vaulter who has just cleared a ... 
physics
At New York City, the earth's magnetic field has a vertical component of 5.2 105 T that points downward (perpendicular to the ground) and a horizontal component of 1.8 x 10^5 T that points toward geographic north (parallel to the ground). What is the magnitude and direction ... 
Physics
A uniform, solid, spherical asteroid with mass 1.2 * 10^13 kg and radius 1.0 km is rotating with a period of 4.6 hours. A meteoroid moving in the asteroid's equatorial plane crashes into the equator at 9.0 km/s. It hits at a 58° angle to the vertical and embeds itself at the ... 
College physics
a person drives northward (90 degrees) at 15m/s in a truck that weighs 2500kg. a second person driving a car that weighs 1600 kg drives southwest (225 degrees) at 16 m/s. They have a perfectly inelastic collision. What is the direction and speed of the two vehicles immediately... 
Physics
Please help me, I am in dire need of it, A football quarterback shows off his skill by throwing a pass {5.70 m downfield and into a bucket. The quarterback consis tently launches the ball at 38.00' above horizontal, and the bucket is placed at the same level from which the ... 
physics
Somebody please shows me how to solve for b) and c)step by step. I found a)=2.27s but stuck there. A 1.49kg particle initially at rest and at the origin of an xy coordinate system is subjected to a timedependent force of F(t) = (4.00ti − 8.00j) Nwith t in seconds.(a) At ... 
english
Homework help please i need to pass? in the play a midsummer night dream for the character Hermia i need help answering these question as if i were Hermia. (answer the questions like something Hermia would say) please really in depth answers please What does it mean to be a ... 
Chemistry
Someone help me with my titration molarity calculation please!? I have titrated 1.000 mL of Ca(IO3)2 with 2.197 ml of 0.022 M thiosulfate. First I found the moles of thiosulfate present with 0.002197 L x 0.022 M = 4.8388E5. The mole ratio of S2O3^2 and IO3 should be 6:1 (... 
math (please help)!
Geometry ***(PLEASE CHECK MY ANSWER)*** 1. If triangle RST = triangle NPQ, which of the following is true? A.) ÚR = ÚP B.) ÚR = ÚQ C.) ÚT = ÚP D.) ÚT = ÚQ < My Answer! 2. Given triangle RST = triangle NPQ, RT = 7x  5, NQ = 5x + 11, find the ... 
Literature Opinion Please Read
I need your opinion on something. If you are a boy please refer to a girl. If you are a girl please refer to a boy. Ok now if you are doing a play for Romeo and Juliet and you had the opposite gender would you sound like yourself or would you try to sound like a girl or boy. ... 
PHYSICS PLEASE HELP
A large balloon of mass 237 kg is filled with helium gas until its volume is 318 m3. Assume the density of air is 1.29 kg/m3 and the density of helium is 0.179 kg/m3. (b) Calculate the buoyant force acting on the balloon. ____________N (c) Find the net force on the balloon and... 
Physics please clarify
The potential at location A is 379 V. A positively charged particle is released there from rest and arrives at location B with a speed vB. The potential at location C is 789 V, and when released from rest from this spot, the particle arrives at B with twice the speed it ... 
English
1. Please call me at 1234567. 2. Please call at 1234567. 3. Please call 1234567. 4. Please dial me at 1234567. 5. Please dial at 1234567. 6. Please dial 1234567. (Which ones are not grammatical? Which ones are grammatical? Thank you.) 
Physics
A spoked wheel with a radius of 44.0 cm and a mass of 1.90 kg is mounted horizontally on frictionless bearings. JiaJun puts his 0.550kg guinea pig on the outer edge of the wheel. The guinea pig begins to run along the edge of the wheel with a speed of 18.0 cm/s with respect ... 
Mat/117 DQ1
How do you know if a quadratic equation will have one, two, or no solutions?Please give examples. How do you find a quadratic equation if you are only given the solution? Please give an example.Is it possible to have different quadratic equations with the same solution? ... 
PHYSICS
I don't know where to start solving this question. Please help! A 320 kg piano slides 3.7 m down a 32 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.39. Calculate the ... 
PHYSICS PLEASE HELP !!!!!
A roller coaster cart with a mass of 13 kg travels around two frictionless, circular loops. It just barely makes it around the top of the first circular loop which has a radius of 24 meters. It then travels around the other loop with a radius of 14 meters. What is the normal ... 
physics
light travels from ethanol intro crown glass. what's the brewster angle in this situation? illustrate your answer with a light ray diagram. what's the signifcance of this angle of incidence? n1=1.36for ethanol nR=1.52 for crown glass tanangleB=nR/ni =1.52/1.36 =1.12 (48.2 ... 
physics
A physics professor lifts her 8.2kg briefcase at constant speed with an upward force. Find the magnitude of her force. answer in newtons. 
Physics
Hi, I am in the middle of a physics lab about sound resonance, but I have no idea what "n" stands for in the equation we have to use, which is L=(2n1)(wavelength)/4 any help? thanks! 
physics
A Physics book , mass unknown , is dropped from a table . its velocity just before hitting the ground is 9.39 m/s . what is the height of the table ? 
science physics helppppp ! i badly need one T___T
how is physics related to food technology and everything related to foods ? 
Physics(Please answer, thank you)
How do you determine the ymax? I know you have to use Q which I have values that were given to me as well as vo values but I am not sure what to do with these values. Physics  drwls, Saturday, September 15, 2012 at 1:29am Define your terms. I have no idea what you are talking... 
physics
A physics professor lifts her 9.0kg briefcase at constant speed with an upward force. Find the magnitude of her force. 
physics
A physics professor lifts her 9.0kg briefcase at constant speed with an upward force. Find the magnitude of her force. 
physics
A physics professor lifts her 9.0kg briefcase at constant speed with an upward force. Find the magnitude of her force. 
physics
A 3.30kg steel ball strikes a massive wall at 10.0 m/s at an angle of θ = 60.0° with the plane of the wall. It bounces off the wall with the same speed and angle (see the figure below). If the ball is in contact with the wall for 0.204 s, what is the average force ... 
physics
A 3.30kg steel ball strikes a massive wall at 10.0 m/s at an angle of θ = 60.0° with the plane of the wall. It bounces off the wall with the same speed and angle (see the figure below). If the ball is in contact with the wall for 0.204 s, what is the average force ... 
Physics
A jet pilot (80 kg) flies a loopdeloop at a constant speed of 600 m/s. a) What minimum radius can the loop have so that the centripetal acceleration is no more than 6ag? b) Suppose that the pilot just happened to be sitting on a spring scale while flying the jet. What will ... 
Physics
A jet pilot (80 kg) flies a loopdeloop at a constant speed of 600 m/s. a) What minimum radius can the loop have so that the centripetal acceleration is no more than 6ag? b) Suppose that the pilot just happened to be sitting on a spring scale while flying the jet. What will ... 
Health
Can you help me with this question? The determinant of total energy requirement that may most appropriately be manipulated in a weight loss program is: 1. basal matabolic rate 2. physical activity 3. dietary thermogenesis 4. body temperature Would the correct answer be #2 or #... 
physics  additional info added
SEE ADDITIONAL INFO ADDED Using the motor principle explain why a motor is rotating in the direction indicated. I seriuosly have no idea, please help explain this theory to me. PHYSICS  drwls, Saturday, February 6, 2010 at 2:15pm To help you answer that question, I'd need a ... 
physics
The engines of a 1.20 x 10^5 N rocket exert an upward thrust of 2.00 x 10^5 N for 1.50 minutes upon lift off. What is the impulse exerted on the rocket? What is the velocity of the rocket at the end of the 1.50 minute period? physics  bobpursley, Thursday, February 3, 2011 at... 
Physics 102
THIS IS A QUESTION IN MY PHYSICS BOOK & I REALLY REALLY NEED HELP. I AM 48YRS OF AGE JUST DECIDED TO GO BACK TO SCHOOL AND HONESTLY KNOW NOTHING ABOUT PHYSICS. Two facts: A freely falling object at Earth’s surface drops vertically 5 m in 1 s. Earth’s curvature “drops” ... 
Psychology
difference between physiological and psychological needs. I am confused on this question I have been studing the Maslow's Hierarchy of Needs I am assuming this so If I am getting this wrong please explain to me the difference. The Maslow theory gave 5 needs they are at the ... 
Science HELP PLEASE
I need to write a hypothesis for a lab ex. I think that ionic compounds will be soluble in water because the polar molecules in H20 cause the compound to break apart and dissolve in the water. but another part is the appearance of ionic and covalent compounds help please!! 
Math please check answer
please see if I am right thanks Mary bought four shirts for $ 22.00 each, a pants suit for $212.00 and dress shoes for $85.00 Her sales tax is 6 % what is the total of her bill ? $22 x 4 = $88.00 $88.00 $212.00 + $ 85.00  $ 385 x 0.6... 
world geo
An isthmus is a narrow strip of land located between two water bodies that connect two larger land areas.find a central american country that is an isthmus. i do not know how 2 answer this question:( please please help:) thank u 
spanish
please help: Mi padre trabaja por la noche. Por eso, se levanta por la noche y _____ por la mañana. a. se acuesta b. se peina c. se cepilla d. se viste i don't think i understand the question correctly? please explain it and the answer choices. 
Math
Determine the zeros of the function 3x^2 8=10x. I know I rewrite it as 3x^2 10x8 = 0 But then what do I doI'm totally confusedAnswers are {2,4} {2,4} {2/3,4} {2/3,4} Please direct me or show the steps, just don't give me the answer because I still won't get it.I think ... 
4th grade math
Please help advise if my answer is correct Is the solution of 25 + n = 30 greater or less than 30? Explain how you know without solving it? By looking at the equation, I know that the value of the n = would be 5. It is not greater or less. It should be equal. Please let me ... 
college algebra
Solve the following inequality. x^3+9x^2108 less or equal to 0. Then write your solution in interval notation. I am sooo confused and do not have any idea how to do this. Can someone please show me step by step please??? Thanks in advance. Someone who is confused. 
math
(1)Robert is thinking of two numbers. Their greatest common factor is 6. Their least common multiple is 36. One of the numbers is 12. What is the other number Answer: 18 please help Ms.Sue I think the answer is right not sure how I got it please explain or help!!! 
English III Freedom Writers
have you watched the movie Freedom Writer? can you please help me with my assignment? 1) consider the reasons why the groups have been used. 2) How this representations of different cultural groups are challenging or stereotypical? PLEASE HELP MEEE!!!!! 
History
Can someone please tell me the radical one between Alfred Young and Gordon Wood in the American Revolution? I believe it is Gordon Wood but when I search the internet it makes me think both were radical. Please direct me to a site. Thanks 
chemistry help~~~~ Please!!!
Sodium24, t1/2 = 15.0 hr, can be used to study the sodium balance in animals. If a saline solution containing 25 μg of 24^Na is injected into an animal, how long can the study continue before only 1 μg is left? Show work please! 
computer science
Please , help me i don't know how to draw a flow chart , how it does..ang we given an ass. And i need an example to get others answer. Please illustrate to me the answer of this. Draw a flowchart to print the first N even positive integers and print the sum. 
Language
1. What is the term for the part of a story that sets up the story's ending? (1point) exposition conflict falling action (either this one) resolution (or this one) Please I need this to be correct. so please tell me how you found out that my answer was correct 
english help please!!
Has anyone read the War of the worlds? I need to make a topic sentence for either 1. Based on this chapter, what might be the author’s message or theme? or 2. How is H. G. Wells’ fictional world in War of the Worlds similar to the real world? Help me please :( 
math help me out please
There are two distinct natural numbers. Each is first increased by 10 then by same percentage as each was increased for the first time. Each number finally results in 72 Find the difference between the numbers. How to solve in easy way please help me 
Steve help please?!?!
How many moles of oxygen are produced from the decomposition of 36.7 g of dinitrogen pentoxide? 2N2O5 4NO2 + O2 A. 3.19 mol B. 0.340 mol C. 0.170 mol D. 5.44 mol Hi Steve, I posted this question the other day but really don't know how to answer it. Can you walk me through it ... 
Physics
At the instant a traffic light turns green, an automobile that has been waiting at an intersection starts moving forward with a constant acceleration of 2.00m/s(squared). At the same time a truck traveling with a constant speed of 18m/s, overtakes and passes the automobile. 1.... 
Physics Elena please help!
An interstate highway has been built though a poor neighborhood in a city. In the afternoon, the sound level in a rented room is 114.0 dB as 172 cars pass outside the window every minute. Late at night, the traffic flow is only 7 cars per minute. (b) What is the sound ... 
Physics
A transformer consists of 275 primary windings and 834 secondary windings. If the potential difference across the primary coil is 25 V, (a) What is the voltage across the secondary coil? (b) what is the effective load resistance of the secondary coil if it is connected across ... 
Physics
A transformer consists of 275 primary windings and 834 secondary windings. If the potential difference across the primary coil is 25 V, (a) What is the voltage across the secondary coil? (b) what is the effective load resistance of the secondary coil if it is connected across ... 
physics
how many excess electrons must be placed on each of two small metal spheres placed 3.00 cm apart in a vacuum if the force of repulsion betwen the spheres is to be 0.000000008 N? how do i solve this problem??=( help please.thx. Use Coulomb's Law: F = k Q^2/R^2 The force is F = ... 
Physics(Please help)
The two strings have the same tension and mass per unit length, but they differ in length by 0.54 cm. The waves on the shorter string propagate with a speed of 41.7 m/s, and the fundamental frequency of the shorter string is 227 Hz. Determine the beat frequency produced by the... 
AP Physics
Two blocks are connected by a string over a frictionless, massless pulley such that one is resting on an inclined plane and the other is hanging over the top edge of the plane. The hanging block has a mass of 16 kg and the one on the plane has a mass of 8 kg. The coefficient ... 
Physics Problem; CONVERSIONS
PLEASE HELP ME SOLVE !!!! InMay 1998, forest fires in southernMexico and Guatemala spread smoke all the way to Austin. Those fires consumed forest land at a rate of 26900 acres/week. On the average, how many square meters of forest are burned down every minute? An acre is an ... 
Physics Problem; CONVERSIONS
PLEASE HELP ME SOLVE !!!! InMay 1998, forest fires in southernMexico and Guatemala spread smoke all the way to Austin. Those fires consumed forest land at a rate of 26900 acres/week. On the average, how many square meters of forest are burned down every minute? An acre is an ... 
Physics: Angular Width. Why is my answer wrong?
A beam of yellow laser light (590 nm) passes through a circular aperture of diameter 5.0 mm. What is the angular width of the central diffraction maximum formed on a screen? I can't seem to get this answer right. I don't think I am finding the first part of the problem ... 
Math (PLEASE HELP!!)
Through how many degrees does the minute hand move... 1. From 10:00 to 11:00?_______________ 2. From 4:00 to 4:30?_______________ 3. From 6:00 to 6:15?_______________ 4. From 9:00 to 9:05?_______________ 5. From 3:00 to 3:01?_______________ Please Help!! Thank You!! 
Physics
1. Question: Consider two planets with uniform mass distributions. The mass density and the radius of planet 1 are p1 and R1, respectively, and those of planet 2 are p2 and R2. What is the ratio of their masses? Ans: M1/M2 = (p1/p2)(R1/R2)^3...I got this answer correct. I need... 
English (URGENT) Please :'(
I have trouble understanding of this article and how to answer the questions given. I just started new to school in Toronto; I was living in Turkey for Years So I do please to take your time to look and examine my homework. I greatly appreciate your patience and time and ... 
Physics
How can discribe in words how to add ten vectors? Please help. Add the ten x components for the x component of the resultant. Call it X Add the ten y components for the y component of the resultant. Call it Y resultant = sqrt (X^2 + Y^2) theta = arctan Y/X (counterclockwise ... 
Environmental Sciencee
Please help me on this question: 33. Wind and water alter the Earth's sufrface by a. blowing away soil and eroding soft rocks b. eroding coastlines c. carving deep gorges d. all of the above I read about this a long time ago, so I don't even remember where it is in my book. ... 
Chemistry(Urgent, please help,thank you)
After performing a freezing point depression experiment I had to find the molecular weight of glycol. Now I have to answer the question what value did I assume "i" to equal and why did I make this assumption. My teacher told us the value of i to use for this was 1. I am not ... 
stats
The rate of chlamydia infection was reported as 2.78% in a recent year. Under certain conditions, a preliminary screening test for the chlamydia bacterium is correct 96% of the time. One person is randomly selected from the population. find the true positive. Can someone ... 
Special Education Setting Teachers Aide
children with a language or speech disorde are A)sometimes suffering from an aphasia.(my answer) B)always learing challenged. C)able to receive special help only after the third grade. D)unable to use communication boards. can someone please check if this is right please