Questions Asked on
March 23, 2016

statistics
Among 15 metal parts produced in a machine shop, 4 are defective. If a random sample of five of these metal parts is selected, find a) The probability that this sample will contain at least three defectives. b) The probability that this sample will contain
asked by akb 
Chemistry
If a mothball (C10H8) has a mass of 1.32 grams, how many naphthalene molecules does it contain? If I'm right just multiply 1.32g by 6.022*10^23 and the answer is 7.949*10^23 molecules. Is this right?
asked by Karisa (Check Answer) 
chemistry
3NO2(g) + H2O(l) → 2HNO3(l) + NO(g) How many moles of nitric acid are produced starting from 5.00 moles of NO2(g) and 2.00 moles of water? Please help,
asked by Sarah 
Math
If adriana drew 20 pitchers and 3/4 of them are in art class how many pitchers did adriana draw in art class
asked by Emily 
Readers
To scale something can mean
asked by Mia 
Algebra
The hypotenuse of a right triangle is 13 inches long. The shorter leg is 7 inches shorter than the longer leg. Find the side lengths of the triangle.
asked by Jewls 
Chemistry
The solubility of sodium chloride is 35.9/100 ml in STP, try dissolving 1 kg of salt in 1 l of water what happens? how much salt will be dissolved and how much salt will be insoluble?
asked by Anna 
Geometric progression
sum of 4 terms of g p is 30 & sum of first and last term is 18 . Find gp a(r^41)/(r1) = 30 a + ar^3 = 18 a(1+r^3) = 18 it's easy to see that if a=2, r=2 Does that work on S4? 2*15/1 = 30. Yes So, the GP is 2,4,8,16,... But sir I want not logic proof ,
asked by Venkatesh 
Math
Write 14 2/9% as a ratio. Here what I have done so far. I change 2.9 into decimal = 0.22 therefore, 14.22. I change 14.22 into decimal = 0.1422. Do I divide 0.1422 by 10,000 or 1000 to make into a simplified fraction?
asked by Jonny 
Combination
In a question paper there are two parts A and B . Part A contains 6 questions and part B contains 7 questions . in how many ways a student can select 4 questions in part A of which 2 questions are compulsory and 5 questions in part B of which 3 questions
asked by Venkatesh 
Science
'Cl(OCl)Cl' What is the name of it?
asked by Md.Azhar uddin 
Math
Write 1/6 as a complex percent. The answer is 16 2/3%. I have NO idea what to do. Thank you
asked by Jonny 
physicis
100+1674
asked by solomon 
Chemistry
Consider the chemical equation. 2H2 + O2 > 2H2O What is the percent yield of H2O if 87.0 g of H2O is produced by combining 95.0 g of O2 and 11.0 g of H2? a 56.5% b 59.0% c 88.5% d 99.7%
asked by Kelly 
Chemistry
A compound of B and H is found to have a mass percent composition of 81.1% Boron. Its empirical formula is B2H5. A mass spectrometry experiment tells us that the molecular mass is 53.3 g/mol. What is its molecular formula? So I feel like this is a trick
asked by Nikela 
trigonometry
x×sin^3A=y , cos^3A = sinA × cosA , x×sinA= y×cosA , then prove that x^2+ y^2= 1 I have no idea
asked by Venkatesh 
physics
A tank attached to an air compressor contains 20.0 litre of air at a temperature of 30¡ãc and guage pressure of 4.00¡Á10^5 pa. What is the mass of air, and what volume would it occupy at normal atmospheric pressure and 0¡ãc. Air is a mixture of
asked by Chinonso 
geometry
In triangle FGH, g = 8ft, h=13ft, and m=F= 72degrees. Find m
asked by Steve 
Chemistry
You dissolve 6g of Co(ClO4)2 (molar mass: 257.83) in 1 liter of water. Assuming the entire sample dissolves, how many individual perchlorate ions are present in this solution? I'm so lost where to start.
asked by Nikela 
Linear Algebra
Diagonalize the matrix A = [1,1;2,4] using a similarity transformation. Give the transformation matrices such that (C^−1)AC = D, where D is a diagonal matrix. (D, C) = ?
asked by anon 
Math
Shannon drove for 540 minutes, if she traveled 65 miles per hour, how many miles did she travel? My answer: 581
asked by Is my work correct? 
English
1. My hobby is internet games and paper folding. 2. My hobbies are internet games and paper folding.  Which one is grammatical? 3. My hobby is exchanging text messages on Kakao Talk on my smart phone. 4. My hobby is talking with my friends on
asked by rfvv 
algebra 1 or pre algebra
Which of the following numbers is not in the domain of the function (f)=x(x^216)/x^25x6 4 a B) 4 C) 0 D) 6 E) 1
asked by moon shine 
Chemistry
Gold has a density of 19.3 g/cm3. The thickness of a piece of gold leaf weighing 1.93 mg and covering an area of 14.5 cm2 is? I solved for volume=10000cm3 then I solved for height and got 690cm is the thickness of gold leaf. Can anyone confirm or deny?
asked by Nikela (Plz Check my answer) 
Mathametical Literacy,Agricultural Science,History,Geography,English,Life Orientation and Tshivenda
Which job can I get by these subjects?
asked by Da gama Lebogang 
maths
find the value of (5/6(1/2+2/3+3/44/5))/1/8 in the lowest form
asked by revathi 
PHYSICS
A box slides down a frictionless, 10meter, 30o incline. Calculate the gravitational potential energy at both the beginning and end of the motion. Calculate the work done by GRAVITY as the box slides down the incline. Compare this to the overall change in
asked by Help! 
division and remainder...error ws from my teacher not me
1+2^2+3^3+4^4+.....+10^10 when is is divided by 5 what is the remainder!! show working,please have been trying that i could not,get it
asked by daniel 
physics
A horizontal, straight wire carrying 12 A current from east to west is in the earth's magnetic field B. At this place, B is parallel to the surface of the earth, points north and its magnitude is 0.04mT. Determine the Magnetic Force on 1 m length of wire.
asked by sanjay 
PHYSICS
Hooke's Law: 1.) If it takes 10 N to compress a spring 20cm, how much energy will be stored in the spring when it is stretched 50cm. ***Also, for ex: If I am doing work against a restoring force, say, doing work against gravity, what kind of force is the
asked by Angie 
Math
How can you use theoretical probability to make predictions in realworld situations? Complete the statement. You can find the theoretical probability of an event and then use it to make a prediction by setting up a IS THIS CORRECT? My answer: A.
asked by PleaseHelpCheckMyAnswers 
physics
A uniform thin wire is bent into a semicircle of radius r. Determine the coordinates of its center of mass with respect to an origin of coordinates at the center of the "full" circle. Because wire is uniform x (sub cm) = 0 mass=dm length=dl coordinates
asked by Melinda 
science
a person roller skates down a street heading east which of the following would be true abot friction in this scenario?  1.A. friction does not affect the skates in this scenario 2.B. friction pulls the skates wheels
asked by darkwolfy 
Uthan
A number consists of 3 digits whose sum 9,when digits are reversed, the number decreased by 198 .the number is ...? thanks
asked by Anik 
Social Studies
which issue has most contributed to conflicts in bosnia since 1990's ? I don't want the answer but can someone explain this shii its hard as !@#$%^&
asked by Same 
Math
A typical stone on the lowest level of the great pyramid in Egypt was a rectangular prism 5 feet long by 5 feet high by 6 feet deep and Weighed 15 tons what was the volume of the average stone how much does one cubic foot of the stone weigh
asked by Eleba 
Life orientation
Six pratical action that can take to adress human right violations of xenophobia in community.
asked by Lindokuhle 
maths
a+b/ab + a²4b²/a²b²  a3b/a+b How to solve this question and how to take the LCM of followings?.
asked by anonymous 
Social Studies
A system in which a series of workers and machines work to add individual parts to a product is known as a(n)____and it_____. Link please to help me?
asked by Amber 
S.S
Which of the following was an effect of World War II? A. The American economy worsened after World War II. B. African American military personnel were accepted into white society as equals. C. The American economy improved after World War II. D. The Axis
asked by Amber 
Math
A bus travels 400 Miles in 8 hours how many miles will the bus travel in 2 days
asked by Kris 
Physics
An equilateral triangle initially has side length equal to 17 cm. Each vertex begins moving in a straight line towards the midpoint of the opposite side at a constant rate of 2.3 cm/s, continuously forming progressively smaller equilateral triangles until
asked by Anonymous 
math
Marianna's cell phone company charged her an upfront fee and a monthly fee. After three months of service, she had paid a total of $154.95. After a year of service, she had paid a total of $559.95.
asked by adadsda 
Physics
An airplane is flying above an observer standing on the ground. At the moment it passes overhead, the observer judges by its apparent size that the airplane’s altitude is 30,000 feet. It takes 50 seconds for the plane, moving in a straight, horizontal
asked by Anonymous 
Health and physical education
The peripheral nervous system (Select all that apply)A. Is made up of the brain and spinal B. cord Links the body to the brain C. Is made up of sensory and motor neurons D. Is responsible for thought and reasoning.......A and C?
asked by Haruhi 
Calculus
An airplane is flying above an observer standing on the ground. At the moment it passes overhead, the observer judges by its apparent size that the airplane’s altitude is 30,000 feet. It takes 50 seconds for the plane, moving in a straight, horizontal
asked by Anonymous 
chemistry
why were you instructed to add distilled water in step 12, and possibly more distilled water in step 15? what purpose does the water serve?
asked by kayla 
Science
Hi!One Question! Which of the following explains why your body may contain a carbon atom that was present in George Washington's body from 1776?
asked by No one speacial 
maths
the diagram part of holly's design for a game. In her game a player pays x pence to spin a star. when the star stops spinning the payer wins the amount shown on the arrow. holly wants to gain an average of 5p each time the game is played show how this can
asked by shanon 
Social Studies
Stevie is moving up to the attic and wants to paint a wall white. The wall is a triangle with a base of 17 feet and a height of 12 feet. What is the area of the wall? A)204 ft** B)58 ft C)102 ft D)51 ft **= answer !!
asked by JacqueesWifee 
Science
This is not questions its the answers hope it helps took a long time to type. A basketball momentarily changes shape as it bounces off the floor. This is due too balanced forces acting on the ball TRUE* FALSE* A ball slowing down as it rolls across a
asked by Peanut buddy 
Math
1.During the month of June, Ava kept track of the number of days she saw birds in her garden. She saw birds on 18 days of the month. What is the experimental probability that she will see birds in her garden on July 1? my answer: 3/5 2.A rectangle has a
asked by check my answers 
MATH
Ginger has 12 plastic bead containers. The containers measure 1 inch on each side. How many rectangular prisms, each with a differentsized base, could Ginger make by stacking all of the bead containers?
asked by JAY 
math
A rectangle made of square tiles measures 10 tiles long and 8 tiles wide. What is the width of a similar rectangle whose length is 15 tiles? is 12 tiles correct
asked by Anonymous 
math
tyson charges $20 per square foot of rug for a basic design. a client orders one basic rectangularshaped rug that is 6 feet long and 4 feet wide and one basic rug shaped like a parallelogram that is not a rectangle with a base that is 8 feet long and a
asked by andrea 
statistics
Among 15 metal parts produced in a machine shop, 4 are defective. If a random sample of five of these metal parts is selected, find a) The probability that this sample will contain at least three defectives. b) The probability that this sample will contain
asked by akb 
Nature Science
Which of the following can be accurately said about climax communities? A. Climax communities are always stable. (B. Restoration of the original climax community is always achieved at the same rate.) C. Climax communities are always uniform. D. Restoration
asked by Jocelynn 
probability
Maya has 12 balls placed in a sack, 5 of them are red, 4 of them are blue and the remaining ones are yellow. Maya draws a single ball from the sack. What is the probability that the ball is red?
asked by nil 
Algebra II
An air show is scheduled for an airport located on a coordinate system measured in miles. The air traffic controllers have closed the airspace, modeled by a quadratic equation, to nonair show traffic. The boundary of the closed airspace starts at the
asked by Lashunda 
math !
A bean plant was 1.5 meters high one week ago. In 7 days it grew 15 centimeters. Find the current height of the bean plant. A)1.35 m B)13.6 cm C)1.65 m D)1.85 cm (I'm having trouble with this !! NO I don't want the answer I just need a way to get the
asked by JacqueesWifee 
Algebra II
The quantity q varies inversely with the square of m and directly with the product of r and x. When q is 2.5, m is 4 and the product of r and x is 8. What is the constant of variation?
asked by Lashunda 
Algebra II
The graph below represents c, the amount a phone company charges, based on m, the number of minutes the customer uses each month. If there are a maximum of 44,640 minutes in a month, which equation best represents the phone company’s charges?
asked by Lashunda 
mathematicsslope of tangent
Find the slope of the tangent to the curve x^2+xy+y^2=4 at the point(2,2) please show workings #thanks
asked by p1 
math !
Find the surface area of the rectangular prism with l= 12.5 m, w= 16.5 m, and h= 5.5 m. My Answer )1134.375 (I'm having doubys about my answer , is it correct ?)
asked by JacqueesWifee 
Science
Which of the following can be accurately said about climax communities? A. Climax communities are always stable. (B. Restoration of the original climax community is always achieved at the same rate.) C. Climax communities are always uniform. D. Restoration
asked by Jordan 
Physics
A 66kg water skier is being pulled by a nylon (Young's modulus 3.7 x 109 N/m2) tow rope that is attached to a boat. The unstretched length of the rope is 20 m and its crosssection area is 2.8 x 105 m2. As the skier moves, a resistive force (due to the
asked by Jane 
Science
True or False? Energy is measured in Newtons?
asked by Lola 
English
Choose the best paraphrase of these lines from the "The Sidewalk Racer" A)I wish I could move as fast as a car or a plane, but I cant because I am only a human. B)I feel as if I am botha single engine plane and a car.(I pick this) C)With my oneengine
asked by trololololololololol 
Geometry
Describe in words the translation of X represented by the translation rule T < 7, 8 > (X). A. 7 units to the right and 8 units up B. 8 units to the left and 7 units up C. 7 units to the right and 8 units down D. 7 units to the left and 8 units down*****
asked by Carpe_Diem 
physics
Fifty liters of gas is kept at a temperature of 200 K and under pressure of 15 atm. The temperature of the gas is increased to 400 K. The pressure is decreased to 7.5 atm. What is the resulting volume of the gas?
asked by Anonymous 
physics
A uniform thin wire is bent into a semicircle of radius r. Determine the coordinates of its center of mass with respect to an origin of coordinates at the center of the "full" circle. Because wire is uniform x (sub cm) = 0 mass=dm length=dl coordinates
asked by Melinda 
math !
A quilt design uses parallelogramshaped pieces that have a base measure of 6 inches and a height of 8 inches. If 15 pieces are used in the quilt, what is the total area of the parallelogramshaped pieces in the quilt? A)150 in B)360 in C)720 in** D)1,440
asked by JacqueesWifee 
math
An executive traveling at 60 km hr would arrive 10 minutes early for an appointment, whereas at a speed of 45 km hr the executive would arrive 5 minutes early.how much time is there until the appointment?
asked by nate 
mathematics
the length of a rectangle is 5/4th of breadth. if its perimeter is 81 m, find area.
asked by vikash 
Physics
a uniform thin wire is bent into a semicircle of radius r, determine the coordinates of its center of mass with respect to an origin of coordinates at the center of the full circle
asked by Melinda 
AP Calculus AB
An object has a constant acceleration of 40 ft/sec2, an initial velocity of 20 ft/sec, and an initial position of 10 ft
asked by Vikram 
History
which of the following was a significant part of the civil rights movement? a.) the civil rights movement got national attention. b.) laws were passed as a result of the civil rights movement. c.) the president provided support of the civil rights
asked by Sam 
AP Calculus AB
Set up, but do not evaluate, the integral which gives the volume when the region bounded by the curves y = Ln(x), y = 1, and x = 1 is revolved around the line y = 1. I don't understand the washer thickness topic which is why im having trouble with this
asked by Vikram 
Math
Determine if the Mean Value Theorem for Integrals applies to the function f(x) = x3  16x on the interval [1, 1]. If so, find the xcoordinates of the point(s) guaranteed to exist by the theorem.
asked by Ryann 
math
The mean of 14 numbers is 50. Removing one of the numbers causes the mean to decrease to 43. What number was removed?
asked by Aaron 
chemistry
what kind of reactions require oxidizing agent(reduced or oxidized) for example SO3>SO4 does it require oxidizing or reducing agent why?
asked by ruth 
math...help plz
estimate a 20% tip on a taxi ride that costs $21.30.show your work (no options or answer choices)
asked by Xxdakota~chanxX 
Math
I need 27 2x4 50" long how many feet do I need
asked by Steve 
INFORMATION LITERACY
What do you like and dislike about Bing(common search engine).
asked by DALE 
Physics
You are driving in your car, which has a mass of 980 kg, when you come across the bend shown in the picture below. This bend has a radius of curvature of 25.0 m and a maximum suggested speed of 35 km.h1K
asked by Kassa 
Math
Marianna's cell phone company charged her an upfront fee and a monthly fee. After three months of service, she had paid a total of $154.95. After a year of service, she had paid a total of $559.95. Her monthly fee was $______. The upfront fee was $______.
asked by John Doswell 
english
my topic is about racial stereotyping so one of the questions is why chose the topic about stereotyping? so what shall i say.....
asked by hello 
Chemistry
What mass of ammonium chloride must be decomposed to prepare 134 grams of ammonia (NH3). Hydrochloric acid will also be produced.
asked by AJ 
Physics
A grain bucket conveyor (grain leg) raises soybeans from the ground level up to the peak of its height, h= 150 ft. A bushel of soybean weight, W=60 lb/bu. The bucket elevator can deliver, Q= 120 bu/min, to the top spout. The motor shaft power to drive the
asked by Max 
History
In 1940, Japan was forced to decide which it needed more. A:Indochina's raw materials or U.S. oil and scrap iron B:Russian support or Indochina's protection C:U.S. raw materials or Saudi oil D:Industrialization or more factories. I choose A is this
asked by Marylyn 
math
Algebraic expression f  7.3
asked by Isabella 
CHS Chemistry
73.79g of a compound MCl2 contains 28.54g of chlorine. Determine the molar mass mystery element M.
asked by Arika 
Science
What if a student gets a 65 on 1 test and 100% on 4 tests? What will there grade be?
asked by Anonymous 
Statistics
How do the 3rd grade boys’ weight in Principal Ben’s school compare to the national average (mean weight = 90, sd =15)? Provide the IV, DV, and best method of analysis
asked by Anonymous 
Chemistry
How many grams of ammonia (NH3) will be produced when 0.281 grams of nitrogen are combined with hydrogen?
asked by Alice 
L.A.
In “The Road not Taken,” what two things is the author comparing? i think they're comparing the seasons in the beginning and end and also the emotions the person in the poem was feeling. I'm not quite sure, i was in the hospital when we learned this..
asked by Iris Marie 
Chemistry
What is the entropy change of liquid glycol (in cal K1 mol1 ) when it freezes at 25 ˚C?the heat of fusion of glycol is 2688 cal mol1 , and the specific heats of liquid and solid glycol are 33.8 and 20.1 cal K1 mol1 , respectively.
asked by chris 
chemistry
How many liters of hydrogen will be produced when 3766 g of aluminum are combined with hydrobromic acid to make aluminum bromide?
asked by cara 
Health
Which activity is an excellent strategy to help maintain strong teeth and healthy gums? 1.) Treating gum disease 2.) Treating tooth decay 3.) Wearing a mouth guard 4.) Eating a well rounded, proper diet I think it's No. 3
asked by Anonymous 
english
"We chased her, flying like a hare" this suggest everyone feels her behaviour is abnormal as the whole village had to pursue for her and also simile has been used to make the girl seem like a wild animal being hunted. im british so can you coorect this in
asked by hello 
Math
Determine the value of c for the quadratic expression. X^214x+c
asked by Marie 
Bus. Math
What is the net price equivalent Rate of 915/18? a) .63427 b) .36427 c) .63573 d) .36573 Answer: B?
asked by Ash 
Math
Twice the sum of five and a number is eight less than four times the number
asked by Xana 
Math
You owe $1,350.00 on a credit card with a 14.25% APR. You pay $300.00 at the beginning of the month. How much interest do you save by paying at the beginning of the month versus at the end of the month?
asked by Kevans 
math
A digital TV box can store 120 hours of programmes. The average length of different programmes is shown here: .Films=1.5 hours each .Sports=2 and one quarter hours each .Nature=75 minutes each Amy has re orded 12 films,9 sports and 15 nature programmes.
asked by kiki 
math
Hailey has a dozen Easter eggs. 2/3 of the eggs are blue. How many of the Easter eggs are blue?
asked by ximena 
mit
A small circular block of mass M traveling with a speed v on a frictionless table collides and sticks to the end of a thin rod of with length D and mass M. The picture shows a top down view of the block and rod on the frictionless table. What is the rod's
asked by juanpro 
mit
A square shaped block of mass travels to the right with velocity on a frctionless table surface. The block has sidelength . The block hits a very small, immovable obstacle on the edge of the table and starts to tip. The block has moment of inertia about
asked by juanpro 
mit
1 point possible) A uniform disc of radius R and mass m1 is rotating with an angular speed ωi about an axis passing through its center and perpendicular to the disc's plane. A small box of mass m2, initially at the center of the disc, moves away from the
asked by juanpro 
math
How can you find the volume of a rectanglar prism using a model?!!!
asked by sarah 
?
What skills should a messenger have
asked by Anonymous 
math
hourly truck rental terms, hourly rental rate is $25,plus $0.30 per mile john rented truck at 9:00am and returned it at 1:30 he drove a total of 100 miles? how much was he charge for time and milage?
asked by tina 
mit
A small circular block of mass M traveling with a speed v on a frictionless table collides and sticks to the end of a thin rod of with length D and mass M. The picture shows a top down view of the block and rod on the frictionless table. What is the rod's
asked by juanpro 
mit
Two circular pucks, each of mass M and radius R, slide toward each other and are about to collide on frictionless ice. The pucks have glue on their edges and when they collide the pucks will stick together. Before the collision, the rightwardtravelling
asked by juanpro 
Chemistry
Write a balanced equation from the following statement: Zinc metal and sulfuric acid are combined to form hydrogen gas and zinc sulfate (Enter the formulas in the order they are listed. Do not leave a space between the coefficient and the formula)
asked by Jackie 
English
Posted by rfvv on Tuesday, March 22, 2016 at 11:55pm. Which class are you in? 1. I'm in class 12. (I am a member of Calss 12. In the classroom, there are 30 students.) 2. I'm in math class. (I'm listening to the math teacher. It's time for studying
asked by rfvv 
math
Hailey has a dozen Easter eggs 2/3 of the eggs are blue how many of the Easter eggs are blue? Please answer quickly!
asked by ximena 
mit
Quiz 12, Problem 4 (2 points possible) A uniform rod of length d is initially at rest on a flat, frictionless table. The rod is pivoted about a point a distance d/3 from one of its ends, and is free to rotate on the table about this pivot. A small glob of
asked by juanpro 
English
I'm writing an essay in English on whether learning always has a positive effect on a persona life. I said that it does. I need another main idea. My first one is learning can help us learn from our mistakes. I also need an example from literature or
asked by Anonymous 
math
Gustavo is making sushi rolls. He needs 1/3 cup of rice to make each roll. If he has 4 cups of rice, how many sushi rolls can he make?
asked by ximena 
English
There are 7 classes for first year students. Each class is composed of about 30 students. Emily is a student of Class 12. One of his classmates who went to the same elementary school asks: Which class are you in? What is the answer to the question? 1. I'm
asked by rfvv 
FL
• Loops • File processing • Previously mastered course topics Create an application allowing employees to take orders and then tally up the total costs from its customers. The coffee shop offers the following items on its menu: • Coffee • Tea •
asked by LAUR 
Math
Four angles are put together, forming a straight angle. Two of the angles are the same size. The other two angles are also the same size but different from the other two. If one angle of the four angles is 40 degrees, what are the measures of the other
asked by Melissa 
FL
C++ applications. Concepts tested by this project • Loops • File processing • Previously mastered course topics Beverage Orders A highend coffee shop has just hired you as their senior programmer. They have tasked you to design and implement two C++
asked by LAUR 
English
At school, he learns 10 subjects such as math, science, social studies, computers, ethics, etc. He is in math class now. He has a cell phone. He is sitting at the back. One of his friends calls him and asked "Which class are you in?" What is the answer to
asked by rfvv 
physics
3 equal charges each of of 2*0.000001C are fixed at three corners of an equilateral triangle ofsides 5 cm.find the column force experienced by one of the charge due to the other two
asked by william 
Chemistry
If 30.47 kilograms of hydrogen are produced, then how many kilograms of zinc have been consumed?
asked by Jackie 
physics
3 equal charges each of of 2*106 C are fixed at three corners of an equilateral triangle ofsides 5 cm.find the column force experienced by one of the charge due to the other two
asked by william 
General science
Which of the following is not a natural result or response to overpopulation? A. Starvation B. Predation C. Extinction D. Migration C
asked by Luigi 
math
My cousin needs help on hw and im too lazy to take out my papers.so what is 5/6 times 12???
asked by ximena 
PHYSICS
A SUPERSONIC FIGHTER JET FLYING HORIZONTALLW AT HEIGHT OF 4KM ABOVE THE GROUND AND AT A SPEED OF 400M/S FIRES A ROCKET VERTICALLY DOWNWARD. THE ROCKET IS RELEASED WITH AN INITIAL SPEED OF 80M/S CALCULATE THE TIME OF FLIGHT OF THE ROCKET AND THE HORIZONTAL
asked by Anonymous 
math
Marianna's cell phone company charged her an upfront fee and a monthly fee. After three months of service, she had paid a total of $154.95. After a year of service, she had paid a total of $559.95. Her monthly fee was $______. The upfront fee was $______.
asked by John Doswell 
mathematicsdiscriminant
. Find d delta(discriminant) of 2x^37x^217x+10 show workings #thanks
asked by p1 
calculus
an air balloon is 80ft away from you with the angle of elevation of the rising balloon changing at a rate of 4 degrees per second how fast is the balloon rising when it is 6 feet off the ground.
asked by marcos 
laney college
The following questions are based on the “Mt. Dome, California,” quadrangle (Figure 332 found on page 228 of the Laboratory Manual; enlarged to scale 1:48,000; contour interval 40 feet) and the stereogram of the same
asked by al 
Math
Scores from the same benchmark test are collected from two algebra classes, each with 30 students enrolled. One class had a mean score of 79 with a mean absolute deviation of 5, and on the other hand a mean score of 81 with the mean absolute deviation of
asked by Me 
Physics
A 66.0 kg rider sitting on a 9.4 kg bike is riding along at 9.1 m/s in the positive direction. The rider drags a foot on the ground and slows down to 7.0 m/s still in the positive direction. What is the change in momentum of the rider and bike?
asked by Andy 
Math
How do i do a solution for the problem.
asked by Becky 
Math
The cafeteria made 96 ounces of pudding. They put the pudding into 7ounce cups. How many of the cups of pudding can the cafeteria fill completely?
asked by Pinkie 
Biology
When we spin around in one place and stop, we feel as though we are still moving. This feeling is caused by continued Select one: A. transmission of nerve impulses from cochlea to auditory nerve B. movement of fluid against cochlea C. vibrations of
asked by Anonymous 
Chemistry
The Kp for the production of phosgene is 18.0. If one mole each of CO and Cl2 are mixed at the total pressure of 1 atm, what will be the partial pressure (in atm) of COCl2 after equilibrium is reached, CO(g) + Cl2(g)>COCl2(g)
asked by chris 
Chemistry
Using the Table of Thermodynamic Data calculate Kp at 500 K for the reaction 2 HI(g)>I2(g) + H2(g) , if Kp at 300 K is 2.16x103 , assuming that delta H˚ is constant.
asked by chris 
English
Thank you for yoiur help. 1. Emily in in math class. 2. Emily is in a math class. 3. Emily is in a math classroom. ================ #1 mean that Emily is learning math from a math teacher. Am I right? #2 and #3 are the same, aren't they? #1 and #2 are not
asked by rfvv 
Business math
Karen obtained a $26,000 loan at 4.6% compounded semiannually. a1. What monthly payment will repay the loan in 8 1/2 years? (Do not round intermediate calculations and round your final answer to 2 decimal places.) Monthly payment $ a2. How much interest
asked by Larissa 
Math probabilities
A gumball machine contains 6 red gumballs and 6 white gumballs. Two gumballs are purchased, one after the other, without replacement. Find the probability that at least one gumball is white. Express your answer as a decimal, rounded to the nearest
asked by Brenda 
math
I took a test today that had 50 questions I needed 70 percent to pass I missed 10 questions what is my percent?
asked by frank 
8th grade Algebra
Carol has a collection of 100 stamps the graph below shows the percentage of stamps she has from each country how many more of Carols stamps are from italy than from france? France: 24%, England:22%, Norway:29%, Italy:25%. A)22 stamps B)25 stamps C)47
asked by Please help/check 
math
A class has 35 students, there are 9 more boys then girls. how many girls are there? write an equation to find the girls
asked by ooocoool 
Biology (Please Help!)
When we spin around in one place and stop, we feel as though we are still moving. This feeling is caused by continued Select one: A. transmission of nerve impulses from cochlea to auditory nerve B. movement of fluid against cochlea C. vibrations of
asked by Anonymous 
Math
Ito is training to run a 10 kilometer race in five months. His current pace is 6.25 minutes per kilometer. He wants to constantly increase his speed each month until he is running a 5.5 minute kilometer. Ito needs to increase his pace by ____ each month.
asked by John Doswell 
Math
If each person at a picnic drinks 710 milliliters of soda , how many twoliter bottles are needed for ten people Plz explain clearly answer now!!!
asked by Akeel 
Math
A cube has a surface area of fiftyfour square centimeters. What is the volume of the cube?
asked by Anonymous 
economy
Can you please help me solve the first problem of Working with the Data in Chapter 4 (page 136 #1) of Macroeconomics Fifth Edition by Stephen D. Williamson? I need all the steps of how to solve the problem 1. The employmentpopulation ratio, from the
asked by boby 
History
What are the risks and benefits of propaganda campaigns?
asked by Nikki 
physics
A 20.0 gram bullet exits the rifle at a speed of 985 m/s. The gun barrel is 0.80 m long. What was the force(N) during the rocket’s launch? (Hint: note the units of the bullet!)
asked by Anonymous 
math
Ito is training to run a 10 kilometer race in five months. His current pace is 6.25 minutes per kilometer. He wants to constantly increase his speed each month until he is running a 5.5 minute kilometer. Ito needs to increase his pace by ____ each month.
asked by John Doswell 
math
Jay is going to cover his kitchen floor with tiles that are each 1 square foot. The floor is shape in a rectangle that is 4 feet wide and 9 feet long. How many tiles are needed to cover the floor.
asked by mona 
trig
Simplify and write the trigonometric expression in terms of sine and cosine: cot(x)cos(x)+sin(x)=1/f(x)=f(x)=____________ I've tried everything, I think that the "1/f(x)" part is screwing up my answer but I'm not sure what it's asking me to do with
asked by mv 
Math
The experimental probability that Alexander wins a tennis match is 0.21. If he plays 40 tennis matches in the next week, about how many matches can Alexander expect to lose? Is it 32 matches?
asked by Pleasecheckmyanswer 
Math
Ruth and tom have the same point driving in opposite directions. Traffic conditions enable Tom to average 10 km/hr more than Ruth. After two hours, they are 308 km apart. Find the speed (Rate) of each person.
asked by Anonymous 
Calculus
a rancher has 1200 fet of fencing to enclose two adjacent cattle pens. What dimensions should be used so that the enclosed area is maximized?
asked by Dante 
PHYSICS
With what maximum speed can an unsecured passenger stay in their seat on a Ferris wheel that has a diameter of 12 m. so, this happens when Fn is zero or mg = mv^2/r. v = sqrt(gr) so is it v=sqrt9.8 what would happen with the 12m
asked by J 
Chemistry
Use the Table of Thermodynamic Data to decide which of the following reactions have K>1 at 298 K: (i) HCl(g) + NH3(g)>NH4Cl(s) (ii) 2 Al2O3(s) + 3 Si(s)>3 SiO2(s) + 4 Al(s) (iii) Fe(s) + H2S(g)>FeS(s) + H2(g). Which of the products of these reactions
asked by Terry 
Math
your child plays basketball your child scored points in the following 5 games: 8 10 4 6 6. What are the average points per game
asked by Ka'Dashia 
Geometry
We know from historical records that the Great Pyramid of Giza was originally about 147 m tall. Assuming it was built with its faces at 52 degree inclines, what was the original length of one side of its base? Round your answer to the nearest meter. 91 m
asked by SkatingDJ 
algebra
How many pairs of integers $(b,c)$ satisfy the equation \[\frac{b + 7}{b + 4} = \frac{c}{9}?\]
asked by Tifanny 
History
What are the risks and benefits of propaganda campaigns?
asked by Nikki 
AP Chemistry
A solution is prepared by titrating a 100.0 mL sample of 0.10 M HF (Ka = 7.2 × 104) with 0.10 M NaOH a. Does the solution contain a strong acid with a strong base, a strong acid with a weak base, a weak acid with a strong base, or a weak acid with a weak
asked by jesse 
AP Chemistry
A solution is prepared by titrating a 100.0 mL sample of 0.10 M HF (Ka = 7.2 × 104) with 0.10 M NaOH a. Does the solution contain a strong acid with a strong base, a strong acid with a weak base, a weak acid with a strong base, or a weak acid with a weak
asked by Anonymous 
Math
Mike drank more than half of his glass of juice. What fraction of juice could mike have drank?
asked by Anonymous 
math
1) A rectangular tank, 15 cm long and 20 cm wide, is filled with water to a depth of 12 cm. When a rock is put in, the water level rose to 15 cm. What is the volume of the rock?
asked by Terry 
MATHS GP
IN A GP if the sum of 2nd and 4th terms is 30 . The difference of 6th and 2nd term is 90 . Find the 8 the term I got r = √13/2 Is it correct? Pls answer
asked by Venkatesh 
Algebra, functions
Determine the exact value of k so that the quadratic function f(x) = x2  kx + 5 has only one zero.
asked by Jordan 
trigonometry
2sin^2 A + 5cosA = 4 , Prove that cos A = 1/2
asked by Venkatesh 
Math
Sadie ate 2/8 of a small pizza.Josef ate 2/8 of a large pizza.Did sadie and Josef eatbthe same amount of pizza? Explain.
asked by Frog 
PHYSICS Centrifugal force
someone swings a bucket of water in a vertical circle. Describe the water's motion to another person? or How would you? & also how to explain the motion of the water to them? How come the water didn't fall on the persons head? A: Centrifugal force causes
asked by Anonymous 
AP CHEM
What is the pKa for the acid HA if a solution of 0.65 M HA and 0.85 M NaA has a pH of 4.75? ~~~I know you find the ph by doing log of pka; how do you do the reverse when you have molarity? I am completely lost. :(
asked by Jenny 
AP CHEM
You need to use KH2PO4 and K2HPO4 to prepare a buffer with a pH of 7.45. Which of the following ratios of [base]/[acid] is required? For phosphoric acid, (H3PO4), Ka2 = 6.2 × 10–8. Do I use the Hasselbach equation?
asked by Jenny 
Physics
Block B has a mass of 2.20kg and is moving to the left at a speed of 2.30m/s. Block A has a mass of 2.70kg and is moving to the right. The two blocks undergo a perfectly inelastic collision. What should be the velocity of Block A in order to have the two
asked by Emily 
Chemistry (30s)
I need help on this question. I can't seem to understand it. Find the molecular formula of a compound with a gram molecular mass of 30 g and an empirical formula of CH3. Please show your work! and briefly explain how you got it!
asked by Candice 
Physics
Block B has a mass of 3.40kg and is moving to the left at a speed of 4.20m/s. Block A has a mass of 6.40kg and is moving to the right. The two blocks undergo a perfectly inelastic collision. What should the velocity of the Block A be in order to have the
asked by Emily 
Math
404k to the powerr of 3 for k=2
asked by Curtis 
Math
If 100 students are surveyed, about how many students own 2 or more pets? Explain please 0 pets __________ 1/20 1 pet __________ 1/2 2 0r more _______ 9/20 Thank you very much
asked by Liz 
Engineering Accounting
A car may be purchased with a $3500 down payment now and 72 monthly payments of $480. If interest rate is 12% compounded monthly, what is the price of the car?
asked by Anonymous 
sunnyvale
4 boys went to the park. 3 of them bought ride tickets for x dollars, plus a game pass for 10dollars.the other one just bought a ride ticket. write an expression
asked by Anonymous