Friday

August 26, 2016
**MATH**

Q1. Prem scored 85 marks on a test containing 100 problems. He attempted all the problems and his score was calculated by subtracting two times the number of wrong answers from the number of correct answers. How many problems did she score correctly? Q2. Three prizes are to be...
*Saturday, February 13, 2016 by sim*

**Stastistics**

A linear regression line y = 0.8x-10 is computed to predict the final exam score y on the basis of the first score x on the first test. Maria scores 78 on her first test. What would be the predicted value of her score on the final exam?
*Saturday, February 13, 2016 by Nora trevino*

**Math,english,further math,government,CRS,lit in english,yoruba,civic,agric,biology**

The fourth and sixth term of an arithmetic progession are -4 and -10 respectively. Find A.the common difference B.the first term C.sum of the first twelve terms
*Friday, February 12, 2016 by Comfort*

**MAth**

Tammy Smith Deposits $5000.00 in First Internets Bank 5-year CD which pays 5.22% interest compounded monthly how much interest will she have in the account in 5 years?
*Friday, February 12, 2016 by Beth*

**Physics**

An air-traffic controller observes two aircraft on his radar screen. The first is at altitude 750 m, horizontal distance 20.0 km, and 25.0° south of west. The second aircraft is at altitude 1050 m, horizontal distance 17.0 km, and 17.0° west of south. (a) Write the ...
*Friday, February 12, 2016 by Anonymous*

**Physics**

A ferryboat transports tourists among three islands. It sails from the first island to the second island, 4.38 km away, in a direction 37.0° north of east. It then sails from the second island to the third island in a direction 76.5° west of north. Finally, it returns ...
*Friday, February 12, 2016 by Anonymous*

**Health**

1. According to the National Clearing House for Alcohol and Drug Information (NCADI), most children under the age of _____ , who do not participate in drug and alcohol abuse, is virtually certain to never do so. (1 point) 20 21 23 19 2. The average age when youth first try ...
*Friday, February 12, 2016 by untington*

**PHYSIC**

A ferryboat transports tourists among three islands. It sails from the first island to the second island, 4.38 km away, in a direction 37.0° north of east. It then sails from the second island to the third island in a direction 76.5° west of north. Finally, it returns ...
*Friday, February 12, 2016 by help*

**PHYSIC 220**

An air-traffic controller observes two aircraft on his radar screen. The first is at altitude 750 m, horizontal distance 20.0 km, and 25.0° south of west. The second aircraft is at altitude 1050 m, horizontal distance 17.0 km, and 17.0° west of south. (a) Write the ...
*Friday, February 12, 2016 by HELP PLZ*

**PHYSIC 220**

A ferryboat transports tourists among three islands. It sails from the first island to the second island, 4.38 km away, in a direction 37.0° north of east. It then sails from the second island to the third island in a direction 76.5° west of north. Finally, it returns ...
*Friday, February 12, 2016 by SFSU*

**Physic 220**

An air-traffic controller observes two aircraft on his radar screen. The first is at altitude 750 m, horizontal distance 20.0 km, and 25.0° south of west. The second aircraft is at altitude 1050 m, horizontal distance 17.0 km, and 17.0° west of south. (a) Write the ...
*Friday, February 12, 2016 by SFSU*

**History**

What does this mean? "It is apparent to my mind that the President thoroughly believed the tenure of office act to be unconstitutional and void . He was advised by every member of his cabinet...... "This was a punitive statue. it was directed against the President ...
*Thursday, February 11, 2016 by Lucy*

**Algebra **

Suppose a circle is centered at the vertex (0,0) and has a radius of length 4. For which points on the circle is the x-coordinate equal to 1? Your first answer should have a positive y-value. For which points on the circle is the x-coordinate equal to 3? Your first answer ...
*Thursday, February 11, 2016 by John*

**math-4th grade**

12+2/2+4= just want to double-check: first we must do the 2/2 as the multiplication and division is affecting the number directly before it.. so 12+1+4=17
*Thursday, February 11, 2016 by Anonymous*

**Math**

Jenny's mean score on three science tests was 75. Her last two scores were 79 and 80. She forgot her score on the first test. What was it?
*Thursday, February 11, 2016 by Sorin*

**Language Arts (2 questions)**

Question #1: From details about blossoms in both the first and third haiku, what conclusion can you draw? a. The poet feels exceedingly lonely b. The poet lives in an urban setting c. The poet enjoys the gentle beauty of nature d. The poet enjoys the drama of nature as its ...
*Thursday, February 11, 2016 by Gourami*

**Math**

3.22 Defective rate. A machine that produces a special type of transistor (a component of computers) has a 2% defective rate. The production is considered a random process where each transistor is independent of the others. (a) What is the probability that the 10th transistor ...
*Thursday, February 11, 2016 by Anonymous*

**Physics**

The displacement of a block of mass 439g 439 g attached to a spring whose spring constant is 66N/m 66 N m is given by x=Asin(ωt) x A s i n ω t where A=12cm A 12 c m . In the first complete cycle find the values of x x and t t at which the kinetic energy is equal to ...
*Wednesday, February 10, 2016 by Sarah*

**Math**

use the rule to write the first twelve numbers in the pattern. describe another pattern in the numbers. Rule: Add 3, subtract 2 First term: 7
*Wednesday, February 10, 2016 by Bobbie*

**environmental engineering**

A lake receives 8 m3/s of inflow containing 0.3 mol/m3 of a chemical. The chemical reacts with a first order rate constant of 0.01 h-1. The outflow from the lake is also 8 m3/s. Assume there was no chemical in the lake at the beginning and volume of the lake is 106 m3. What ...
*Wednesday, February 10, 2016 by Sam*

**math**

There are 2 books on the first shelf,6books on the second shelf,12 books on the third shelf and 20 books on the the fourth shelf how many books on the tenth shelf. What do I do i need help
*Wednesday, February 10, 2016 by nia*

**physics**

a macopolo of a mass 1200000g travelling at 72km/h is brought to rest in 4s.with the aid of a diagram,find its (a)average retardation (b)average breaking distance (c)the total distance moved during deceleration
*Wednesday, February 10, 2016 by mukosha*

**math **

in a geometric sequence T6=-243 & T3=72 determine the constant ratio and the sum of the first 10 terms
*Wednesday, February 10, 2016 by Anonymous*

**Algebra**

Use the given information to write a systems of equations, and then solve the system algebraically to answer the question: A car begins at rest and accelerates. Its distance in meters, t, by the formula C(t) =4t^2. A second car, 150 meters ahead, is traveling at a constant ...
*Wednesday, February 10, 2016 by Beka *

**Oh Captain! My Captain! Questions 1-5**

Question 1. In the first line from "O Captain! My Captain!" what does "our fearful trip"refer to? (1 point) the Civil War **** the battle at Antietam Creek the presidency Lincoln's life Question 2.Which statement best expresses the underlying meaning of...
*Wednesday, February 10, 2016 by That Girl*

**math**

The 5th and 10th terms of A. P are - 12 and 27 respectively. Find the A. P and its 15th term. (B) The first three terms of an A. P are x and the 10th term.
*Wednesday, February 10, 2016 by oshinowo ayodeji Samuel*

**Physics Grade 10**

The speed limit near a school is 30km/h but Joe Cool thinks he can ignore it. He is driving at 60km/h. To make matters worse, he is talking on his cell phone. Suddenly a child rides his bicycle out of school grounds and across the road on the pedestrian crossing. The maximum ...
*Wednesday, February 10, 2016 by Sarah*

**math**

Assume you start with $100 in a saving account that earns 12% per year. The monthly interest rate is 12%/12 = .12/12 = .01. After the first month there is 100 + (.01)*100 in the account = 101 After the second month there is: 101 + (.01)* (101) = 102.01 Thus each month is ...
*Wednesday, February 10, 2016 by ayeshhs*

**route surveying**

A vertical parabolic sag curve is to be designed to connect a down-gradient of 1 in 20 with an up-gradient of 1 in 15, the chainage and reduced level of the intersection point of the two gradients being 797.7 m and 83.544 m respectively. In order to allow for necessary ...
*Wednesday, February 10, 2016 by Anonymous*

**Surveying**

A vertical parabolic sag curve is to be designed to connect a down-gradient of 1 in 20 with an up-gradient of 1 in 15, the chainage and reduced level of the intersection point of the two gradients being 797.7 m and 83.544 m respectively. In order to allow for necessary ...
*Wednesday, February 10, 2016 by Anonymous*

**tabc**

what is the maximum fine imposed for a first offense for a minor who has purchase alcoholic beverages
*Wednesday, February 10, 2016 by xochitl*

**math**

The Hamilton/Vinton Method The Hamilton/Vinton Method sets the divisor as the proportion of the total population per house seat. After each state's population is divided by the divisor, the whole number of the quotient is kept and the fraction dropped. This will result in ...
*Wednesday, February 10, 2016 by christopher*

**Elements of Poetry**

Question #1: Which of the following answer choices contains a metaphor? a. His skin was sandpaper b. The sun sparkled like a diamond c. She wanted to be like the birds abd fly away d. They felt free when they ran though the doors According to my study a metaphor describes one ...
*Tuesday, February 9, 2016 by Gourami*

**Social Studies (Check)**

1. Explain the goals of the Alliance for Progress. A: The goals of the Alliance for Progress were to aid Latin American governments and to create a "free and prosperous Latin America" that would be less likely to support Communist-inspired revolutions. 2. How did ...
*Tuesday, February 9, 2016 by Victoria*

**History of Arabia and Iraq**

I need some help with some questions. Question #1: Which of the following most contributed to the rise of Sumer? a. agriculture b. trade c. military conquest d. monotheism According to what I have studied Sumerians developed a civilization, but they also built irrigations ...
*Tuesday, February 9, 2016 by Gourami*

**physics**

An electric field of magnitude 3640 N/C is applied along the x axis. Calculate the electric flux through a rectangular plane 0.166 m wide and 0.72 m long if the plane is parallel to the yz plane. Answer in units of N · m2 /C. 435.05 N. m2/C 002 (part 2 of 3) 10.0 points...
*Tuesday, February 9, 2016 by sami*

**Math**

(〖3x〗^4/〖6x〗^3 )2 I'm having some trouble solving this. In the numerator is 3x to the 4th. In the denominator is 6x to the 3rd. All of that is in a bracket and it's all squared. Do I have to first subtract the exponents, 4 - 3 and ...
*Tuesday, February 9, 2016 by John*

**Algebra 1**

Find the numbers whose sum is 15, if twice the first number minus the second number equals 6.
*Tuesday, February 9, 2016 by Kendra *

**Socials medieval England **

I'm learning abt punishment and crime that happened in England and how persons had to undergo ordeals by trials. Question I'm having trouble with is why people and whole village in general had to come as first finders and be in mercy when they didn't observe ...
*Tuesday, February 9, 2016 by Mohammad *

**Foreign Languages; French**

1.) Louis Joliet was the first European explorer born in Quebec. False
*Tuesday, February 9, 2016 by Help. *

**Geography **

The organization USAID A. promotes free trade. B. provides military aid. C. provides food aid. <<<<<<, D. negotiates peace treaties.
*Tuesday, February 9, 2016 by Keely *

**Socials, medieval England**

I'm learning abt punishment and crime that happened in England and how persons had to undergo ordeals by trials. Question I'm having trouble with is why people and whole village in general had to come as first finders and be in mercy when they didn't observe ...
*Tuesday, February 9, 2016 by Mohammad*

**Socials medieval England **

I'm learning abt punishment and crime that happened in England and how persons had to undergo ordeals by trials. Question I'm having trouble with is why people and whole village in general had to come as first finders and be in mercy when they didn't observe ...
*Tuesday, February 9, 2016 by Mohammad *

**Maths**

The first Arthmatic sequence is 23 and the 12th term is 72. Determine the first three terms in the sequence and the nth term and also Determine the Value of 10th term
*Tuesday, February 9, 2016 by Patricia*

**math**

The first term of an A.P is 2 and the common difference is 3. Find the sum of the first 11 terms
*Tuesday, February 9, 2016 by kemmy*

**Calculus 2**

Sketch the region in the first quadrant enclosed by y=7/x, y=2x, and y=x/2. Decide whether to integrate with respect to x or y. Then find the area of the region.
*Tuesday, February 9, 2016 by Henry*

**physhic**

For every reaction there is an exact opposite reaction. True! The question one could ask and explore is what came first? or who or what the reaction is. Could we agree good is supieror to evil just to make my point your preference, makes no difference. If you could chose to be...
*Monday, February 8, 2016 by Kj*

**Physics**

I have a few physics questions that I don't understand. Two are thermal expansion problems and the other is an ideal gas law problem. 1. Two rods, one made of iron and the other of aluminum, have the same initial length at 64.00 deg. C? When the temperature drops to 4.00 ...
*Monday, February 8, 2016 by Alyssa*

**optional math**

If first fourth and nine term ofAP are in GP find the numbers
*Monday, February 8, 2016 by Anonymous*

**math**

when I add a number to another number four times as big, the result is 30. find the first number.
*Monday, February 8, 2016 by Ifey*

**History**

Here's what I got! Thesis: The rise of Alexander the Great was so remarkable due first to his parental influence, and then his military strategies, lastly his potential strength. 1. Alexander's parents encouraged him to be a great man and leader. 2. In order to suceed ...
*Monday, February 8, 2016 by Julius Caesar*

**MAth algebra 1**

Steve is driving to a ski resort. At first, he drove at a rate of 65 mph. Then a snow storm started and he had to slow down to 40 mph. In total. it took him 6 hours to drive 310 miles. Which system of equations represents this situation? A. 6x + y= 1 x + y= 310 B. x + y= 105 ...
*Monday, February 8, 2016 by dbzaltheway*

**Math**

The Emerson First National Bank is lending you money to buy a new car. The loan agreement will probably state that you must carry _______ insurance. A. medical *B. liability C. no-fault D. collision
*Monday, February 8, 2016 by Jocelynn*

**Math**

Susie spent 4 1/4 hours on Monday and 3 5/8 hours on Tuesday working on a history project. About how long did she spend working on the project? a. 1 hour b. 7 hours c. 8 hours d. 9 hours Answer: 8 hours I first found the common denominator which is 8 and added 4 2/8 plus 3 5/8...
*Monday, February 8, 2016 by Patrick*

**Geometry**

How would one solve similar right triangles if the first triangle has y and x as legs and a (altitude) as hypotenuse, and the second triangle has one leg of 50, the other is a, and the hypotenuse is 100. I solved for a, and it came out to be 86.6? Is this correct? How do I ...
*Monday, February 8, 2016 by Liz*

**Math**

Marco drew 20 pictures. He drew 3/4 of them in art class. How many pictures did Marco draw in art class? Answer: 15 pictures Caroline has 10 marbles. One half of them are blue. How many of Caroline's marbles are blue? Answer: 5 marbles What is the value of the underlined ...
*Monday, February 8, 2016 by Patrick*

**Science**

1. Which type of eclipse would you expect to see if the moon passes directly between Earth and the sun? (1 point) a solar eclipse a lunar eclipse a total lunar eclipse a penumbra 2. Which of the following statements about a lunar eclipse is true? (1 point) A lunar eclipse can ...
*Monday, February 8, 2016 by Mettaton ex*

**maths **

the sum of the first 53 terms of an arithmetic series is 4 240 while the seventh term is equal to 20. Find the first term on common difference
*Monday, February 8, 2016 by nthabiseng *

**social studies**

During the seventeenth-century, New England had one of the healthiest populations in the world. The region had a low population density and a higher life expectancy than in England. It was home to the first society in history in which grandparents were common. The region's...
*Monday, February 8, 2016 by ashleydawolfy*

**English**

Please explain the first stanza of the pulley by george herbert.. When god at first made man, having a glass of blessings standing by, " lets us," said he,"pour on him all we can, let the world's riches,whhich dispersed lie, contract into a span."
*Monday, February 8, 2016 by Zumrique*

**math**

Nora and Julia are both participating in a food eating tournament. They represent the number of hot dogs, h, each of them eats in t seconds in the equations shown. Use the equations to answer the question. Nora’s equation: t=4.8h Julia's equation: t=5.2h For each of ...
*Sunday, February 7, 2016 by John Doswell*

**economics**

After getting her first job, a college graduate wants to begin saving money so she can pay cash for a new car. She wants to save enough each month to have $21,000 at the end of 4 years, and her savings account pays 4% interest, compounded monthly. How much will she have to ...
*Sunday, February 7, 2016 by aryona*

**economic**

The owner of a manufacturing plant borrows $170,000 to buy new robotic equipment for the plant. The loan is to be repaid over 17 years in equal quarterly payments at 4% annual interest with no payments for the first year (interest does accrue the first year). How much will the...
*Sunday, February 7, 2016 by aryona*

**physics**

A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 16.0 m/s. The cliff is h = 25.0 m above a flat horizontal beach, as shown in the figure below. How long after being released does the stone strike the beach below the cliff? s...
*Sunday, February 7, 2016 by lisa*

**algebra **

In a G.P, the product of the 2nd and 4th term is double the 5th term, and the sum of first 4th term is 80. Find the G.P
*Sunday, February 7, 2016 by Ayanyen kess *

**Physics**

We study the three point charges shown in the figure. They are held at the corners of an equilateral triangle with ℓ = 0.9 m. What is the electric potential energy of the system of three point charges? Use for the three charges q1 = +2Q, q2 = −3Q, and q3 = +Q, ...
*Sunday, February 7, 2016 by Emily*

**math**

What is -(-(-8)) I believe it's -8 because of the double negative if you work inside the parentheses first?
*Saturday, February 6, 2016 by John*

**Physics**

Real world trampolines lose energy since they are damped springs with much internal friction. How much energy does the sumo wrestler lose on each bounce in this situation? Information I was given: mass=400 kg gravity=10N/kg k = 12000 N/m I also know from the previous question ...
*Saturday, February 6, 2016 by Charlotte*

**math**

A parking garage charges $K for the first hour or fraction of an hour and $2/3K for each hour thereafter. Bill parked 7 times as long as Ray. If Ray parked for 1/2 hour, Bill paid _____ times as much as Ray.
*Saturday, February 6, 2016 by Jessey*

**math**

Tom and Burt are to take turns removing either 1 or 2 marbles from a circle. There are 7 marbles. The person selecting the last marble is the loser. If Tom goes first and each of them makes the best possible removals, then who will lose the game?
*Saturday, February 6, 2016 by dero*

**math reasoning**

the library charges 5 cents for the first day and 2 cents for each additional day that the book is over due if the borrower paid 65 cents in late charges for how many days was the book overdue
*Friday, February 5, 2016 by Anonymous*

**Math**

A train leaves New York at 4:00 PM a second train leaves the same city in the same direction at 6:00 PM the second train travels 24 mph faster than the first if the second tray overtakes the first at 10:00 PM what is the speed of each of the two trains
*Friday, February 5, 2016 by Sabri*

**Law and ethics**

A surgeon performs elective surgery on John Smith. Smith later complains to his surgeon about pain resulting from the surgery. His surgeon dismisses his complaints as not credible and eventually withdraws from the case. Smith is then treated by another surgeon, who determines...
*Friday, February 5, 2016 by Holla *

**precal**

She doesn't know the exact route to her friends house. She knows that the route is 3 blocks to the first turn, 2 blocks to the second turn and then 1 block further. She can walk east, west or north when she leaves school and the blocks are 1/8 mile long. What is the ...
*Friday, February 5, 2016 by sydney*

**i really need help and i dont ask alot so plzz **

I NEED HELP WITH THIS its a TEST: 1. Which of Earth’s spheres contains most of its mass? (1 point) atmosphere hydrosphere geosphere biosphere 2. Erosion and weathering are examples of which types of forces? (1 point) constructive forces destructive forces gravitational ...
*Friday, February 5, 2016 by the girl that has no friends *

**computer programing**

okay I need a little help here on next program this what it say for first one which I have done. Create a counting program that counts backward from 100 to 1 in increments of 10. #include < stdio.h > int main () { Int i; while ( I > = 1 ) { printf ( “ % d \ n &#...
*Thursday, February 4, 2016 by Poohboi*

**math**

There are 28 cars registered for a race. The top 5 finishers will be awarded trophies. 1. how many different ways can the trophies be awarded? 2. Now, the trophies are labeled "first, second,etc How many different ways can the trophies be awarded?
*Thursday, February 4, 2016 by cici*

**Physics**

A rock climber throws a small first aid kit to another climber who is higher up the mountain. The initial velocity of the kit is 12.8 m/s at an angle of 65.7° above the horizontal. At the instant when the kit is caught, it is traveling horizontally, so its vertical speed ...
*Thursday, February 4, 2016 by Sam*

**physics**

A disk is free to rotate around its fixed axis of revolution (delta). The moment of inertia of disk around delta is J=4×10^-2 kg.m^2 This disk is initially at rest is submitted to the action of a couple whose moment is equal to 0.2 N.m What's the ...
*Thursday, February 4, 2016 by vicky*

**Social Studies (Check) (Reed)**

Describe how and why the suburbs became popular places to live. A: Suburbs became popular places to live as the GI Bill offered low-interest loans, making new housing more affortable during the postwar period than at any other time in American history. They were so popular, in...
*Thursday, February 4, 2016 by Victoria *

**The Oregon Country Unit 2 Lesson 4**

Could you please check to see if these are correct? Thank you. Question 1; What policy allowed people from both Britain and the United States to settle in Oregon? A) Rendezvous B) Manifest Destiny C) Joint Occupation*** D) Oregon Country Occupation Question 2; Mountain men ...
*Thursday, February 4, 2016 by 8th Grade Questions*

**physics help**

A disk is free to rotate around its fixed axis of revolution (delta). The moment of inertia of disk around delta is J=4×10^-2 kg.m^2 This disk is initially at rest is submitted to the action of a couple whose moment is equal to 0.2 N.m What's the number of ...
*Thursday, February 4, 2016 by angy*

**physics**

A ball is thrown straight upward and returns to the thrower's hand after 2.00 s in the air. A second ball thrown at an angle of 40.0° with the horizontal reaches the same maximum height as the first ball. (a) At what speed was the first ball thrown? m/s (b) At what ...
*Thursday, February 4, 2016 by lisa*

**Finance**

What is the value of a building that is expected to generate fixed annual cash flows of 124,250 dollars every year for a certain amount of time if the first annual cash flow is expected in 3 years from today and the last annual cash flow is expected in 9 years from today and ...
*Thursday, February 4, 2016 by Rob*

**Math**

Shirley had 52 more coins than Jim after Jim gave 1/5 of his coins to her. If they had 260 coins in all, how many coins did Shirley have at first?
*Thursday, February 4, 2016 by Trish*

**physics**

a ball of mass 100g is projected vertically upwards from the ground with a velocity of 49m/s at the same time another identical ball is dropped from a height of 98m to fall freely along the same path as followed by the first ball. After some time the two balls collide and ...
*Thursday, February 4, 2016 by gudygudy*

**Social Studies (Check, Please!)**

Will someone help me with the first two questions and then check the rest? 1. What were two causes and effects of the economic boom of the 1950s? A: ? 2. How did the television industry affect the U.S. economy? A: ? 3. Describe how and why the suburbs became popular places to ...
*Thursday, February 4, 2016 by Victoria*

**physics**

A cubical block of density rB and with sides of length L floats in a liquid of greater density rL. (a) What fraction of the block’s volume is above the surface of the liquid? (b) The liquid is denser than water (density rW) and does not mix with it. If water is poured on ...
*Wednesday, February 3, 2016 by mary*

**algebra**

Traveling to Washington is a 500-mile trip, that took 5 hours. The average speed of the car on the first part of the trip was 105 mph, and on the second part of the trip was 115 mph. How long did the car drive at both speeds.
*Wednesday, February 3, 2016 by tottie*

**Physics**

A rock climber throws a small first aid kit to another climber who is higher up the mountain. The initial velocity of the kit is 10.1 m/s at an angle of 62.4° above the horizontal. At the instant when the kit is caught, it is traveling horizontally, so its vertical speed ...
*Wednesday, February 3, 2016 by Emily*

**Reading/Writing**

I really need help asap with my subjective letter for my NJHS Application. Please answer fast- it is due tomorrow!! --- To the National Juniors Honor Society: I express my gratitude for selecting me, Sandra Garcia, as a possible member of the National Junior Honors Society (...
*Wednesday, February 3, 2016 by Sandra*

**Social Studies (Check, Please!)**

Will someone help me with the first two questions and then check the rest? 1. What were two causes and effects of the economic boom of the 1950s? A: ? 2. How did the television industry affect the U.S. economy? A: ? 3. Describe how and why the suburbs became popular places to...
*Wednesday, February 3, 2016 by Victoria*

**math**

Dree rolls a strike in 6 out of the 10 frames of bowling. What is the experimental probability that Dree will roll a strike in the first frame of the next game? Explain why a number cube would not be a good way to simulate this situation. THANKS!!
*Wednesday, February 3, 2016 by kimie*

**math**

In tennis, Gabby serves an ace, a ball that can't be returned, 4 out of the 10 times she serves. What is the experimental probability that Gabby will serve an ace in the first match of the next game? Make a prediction about how many aces Gabby will have for the next 40 ...
*Wednesday, February 3, 2016 by kimie*

**algebra**

a jewelry salesman can earn either a salary of$2500 a month or a salary of $1000 a month plus 10% of all sales. how much does he have to sell for the second choice to earn more than the first choice
*Wednesday, February 3, 2016 by Emmanuella*

**History**

i am an icon of hip hop culture and pivotal part of the mtv news team. i have been a staple of the music news arena for more than a decade. i gave eminem and notorious big their very first radio airplay in the mid 90s. i was key correspondent for mtv choose or lose campaign ...
*Wednesday, February 3, 2016 by John Doswell*

**Forensic science**

1.Some people believe that certain drugs such as marijuana should be legalized. Do you agree or disagree? What impact might legalization have on forensic science as a field? for the first one I think that marijuana should not be legalized because people can mistreat the drug. ...
*Wednesday, February 3, 2016 by anonymas*

**chemistry**

Using the following equation 2C2H2 + 5O2 -> 4CO2 + 2H2O what volume of oxygen would be needed to react with 89.6L of C2H2 at a temp of 273 and a pressure of 101.3 kpa. I can't seem to figure out my first step. Using PV=NRT should I do initial and final conditions? I ...
*Wednesday, February 3, 2016 by danielle*

**physic**

A ball is thrown straight upward and returns to the thrower's hand after 2.00 s in the air. A second ball thrown at an angle of 40.0° with the horizontal reaches the same maximum height as the first ball. (a) At what speed was the first ball thrown? m/s (b) At what ...
*Wednesday, February 3, 2016 by mark*

**Chemistry**

which element in the first transition series do not exhibit variation of oxidation state and why?
*Wednesday, February 3, 2016 by Ri*