Questions Asked on
September 7, 2017

CHEMISTRY
2HBr+Mg(OH)2 > MgBr2+2H2O how many mL of a 0.2 M HBr solution is required to react with 40 mL of a 0.40 M Mg(OH)2 solution
asked by jack 
physics
Given the graph below with the initial velocity, vi = 8 m/s, the object starts with one value of constant acceleration and stops at 2.3 seconds. Then, the value of its acceleration changes to a different acceleration. Finally, at t1 = 6.8 seconds, it
asked by JJ 
Algebra
On a scale drawing if 1/4 of an inch represents a distance of 1 foot then a line on the drawing measuring 8 1/2 inches represents ? Feet
asked by Mary 
Math
A bike wheel has a radius of 40 inches. If Mary rides the bike 1 mile (63,360mi.), approximately how many times has the wheel rotated?
asked by Ann 
math
Translate the following statement to an inequality. Then, find the solution. Four times the sum of a number and eight is greater than or equal to negative four. n ≥ 9 n ≤ 9 n ≥ 32 n ≤ 32
asked by dean 
math
Select all the expressions that are equivalent to 10w  8 + 6  4w. 2(3w  1) (6w + 3) + (2w  7) 6w  2 (11w  1)  (5w + 3) 3w + 7 + 3w  9 14w + 14 2(5w + 7)
asked by dean 
calculus
A person is jumping straight up and down on a trampoline. The height of the center of mass of the person is measured every tenth of a second. It takes just over one second to complete one full bounce. (A video of this situation is displayed above.) t
asked by anon 
Chem
What mass of precipitate is produced when 40.0 mL 0.100M lead nitrate reacts with 30.0 mL 0.100M aluminum sulfate? Assume the volumes are additive. I keep getting the answer of 2.7g precipitate formed rather than the answer of 1.21g. I am using an ice
asked by Maddy 
College Algebra
Graph the inequality on the number line and then write it in interval notation. 8x+5(x+5)≥2x+58 Please can you help me with the interval notation and graph number line description ( where plot the point what direction the line arrow goes.)
asked by Anonymous 
English
Thank you for your help. One more question about the verb send goes as follows. 1. He sent me a book. [active] 2. I was sent a book by him.[passive] 3. A book was sent (to) me by him.[passive]  #3 is grammatical. It has no problem.
asked by rfvv 
Accounting1
Business started with cash Rs. 80,000
asked by Dinesh 
physics
a particle moving on a circlehas a velocity of m/s and normal acceleration of 10m/s2.determine the radius of the circle.
asked by tarun 
5th grade Math
Read the following word problems, create an expression, and solve. 1. Nadia earned $3 a week. Nathan $4 a week. How much did they earn together after 4 weeks? (3+4) x 4 = $28 2. Audrey has 120 beads. She puts 8 beads on each necklace and 4 beads on each
asked by Jared 
math
Difference between 4 tens 12 tenths 25 hundredth and 3 tens 14 tenths 45 thousandth
asked by saloni 
Multi media and webpage design
what is the length of a communications band called?
asked by Nura 
Art 7th Grade
These buildings were created for a utilitarian purpose. Which of the following changes would not be practical to enhance the purpose of the building. 1:Adding additional windows to each apartment building 2:Attaching movie screens on the side of each
asked by Isabelle 
physics
A 3.5kg block slides down a ramp with friction, as shown in the figure. The top of the ramp is 1.5 m above the ground; the bottom of the ramp is h = 0.17 m above the ground. The block leaves the ramp moving horizontally, and lands a horizontal distance d
asked by gomolemo 
math
Three friends go out to dinner and pay different amounts. John pays $4 more than Juan and Jenna pays twice as much as John. If the bill comes to $60, how much did each person pay?
asked by Rylee 
Physics
A tank contains 10.5 g of chlorine gas (Cl2) at a temperature of 87 °C and an absolute pressure of 5.50 × 105 Pa. The mass per mole of Cl2 is 70.9 g/mol. (a) Determine the volume of the tank. (b) Later, the temperature of the tank has dropped to 30 °C
asked by Jenny 
Maths
Sanya bought 250 cartons with 20 eggs each. 5 eggs got spoilt. how many eggs were there which can be used
asked by Sini 
math
what is 3 5/6 minus 3/4
asked by tom 
knott central high school
Create a flowchart OR a pseudocode that shows the logic for a program that generates a random number, then asks the user to think of a number between 1 and 10. Then display the randomly generated number so the user can see whether his or her guess was
asked by Anonymous 
chemistry
how is rubbing alcohol a homogenous mixture ??
asked by Sabrina 
maths
The cost of plugging a square field rupees 13.50 per square metre is rupees 5400 find the cost of fencing the field at rupees 28.50 per metre
asked by Risha Alfi 
Life orientation
Evaluate three benefits of participating in a community project
asked by Zakhona 
Social studies
Why were backcountry colonists more self  sufficient than plantation owners a) they had more slaves to help them b) Farming along the cost provided everything they needed c)living near the breadbasket provided them with enough money for their cash crops
asked by Maggie 
Math 2
A fathwr is 5 years more than 4 times his age. In 5 years he will be 3 times his sons age then. How old is the son now? Did this problem.and we didnt underarand it as a group. If you can please help us and explain thia question
asked by Edgard 
Physics
What is the force on the charge located at x = +8.00 cm in Figure 17.40(a) given that q = 1.00 nC and a = 7.50? (The positive direction is to the right.)
asked by Allie 
Physics
Using symmetry arguments, determine the direction of the force on q = +1.00 µC in Figure 17.33, given that qa = qb = +7.00 µC and qc = qd = 7.00 µC. Calculate the magnitude of the force on the charge q, given that the square is 10.0 cm on a side.
asked by Allie 
Biology
Can someone check my answers please? 1. Which of the following is not a characteristic of life? A. Maintains homeostasis B. Composed of cells C. Composed of atoms*** D. Carries out metabolism 2. Which of the following represents a correct sequence of
asked by Brooklyn 
Physical Science
1. boyle's law states that the volume of a gas is inversely proportional to its pressure if the? A) temperature and number of particles are consistent** B) temperature reaches absolute zero C) number of particles are doubled D) temperature and number of
asked by ? 
science
what volume of 0.115 M HClO4 solution is needed to neutralize 50.00 ml of o.o875 M NaOH?
asked by yvaine 
Math
A soccer player kicks a ball from the ground to a maximum height of 11 m. the high point in the trajectory of the ball occurs at a distance of 16 m from the kicker. on the downward path, another player heads the ball at a height of 1.9 m from the ground.
asked by Anonymous 
Math
5. r • 1 = r Commutative Property of Addition Identity Property of Multiplication *** Commutative Property of Multiplication Identity Property of Addition 6.(5y + 2) + 14x = 5y + (2 + 14x) Associative Property of Addition Associative Property
asked by I Need Help 
Breaking News
What are post news? I couldn't find it anywhere, it's a type of news but i don't understand what it means.
asked by Thara 
Python Programming
Does anyone have suggestions about books for a begineer to self study/get some basic to advanced knowledge on Python Programming? Hope someone who's familiar with this subject area,will help me. Thanks!
asked by Anna 
chemistry
CaCl2(aq)+ NaHCO3(aq) =CO2(g)+ CaCO3(aq)+ NaCl(aq) +H2O(l) could some one explain to me how to balance the equation? please
asked by PLEASE help 
English
1. While he extended his hand, he smiled brightly. 2. While he was extending his hand, he was smiling brightly. (Are both okay?) 3. When he extended his hand, he smiled brightly. 4. When he was extending his hand, he was smiling brightly. (Can we use
asked by rfvv 
Math
Suppose a person on the surface of an asteroid kicks a ball. The table shows the height, h, in meters, of the ball over time, t, in seconds, after it is kicked into the air. t h 0 0 0 3 16.2 6 28.8 9 37.8 12 43.2 15 45 18 43.2 21 37.8 24 28.8 27 16.2 30 0
asked by Anonymous 
English
1. While I was playing the piano, I was singing a song. 2. While I was playing the piano, I sang a song. 3. While I played the piano, I sang a song. 4. While I played the piano, I was singing a song.  Can we use all the sentences? Which
asked by rfvv 
English
1. While he is poor, he is very happy. 2. Although he is poor, he is very happy. 3. Though he is poor, he is very happy. (Are the three the same in meaning?) 4. He is friendly, while his brother is unfriendly. 5. He is friendly, but his brother is
asked by rfvv 
Spanish
Which of the following is and example of an ar verb in Spanish? leer dibujar* escribir ir
asked by Person 
Algebra
One month, a music site observed that 60% of the people who downloaded songs from its site downloaded Q Sam's latest single. The equation below represents this information, where x represents the total number of people who downloaded songs from the site
asked by Aelia Trainer 
Data Magement
There are 10 students and 10 different books in a classroom. if you assign the students randomly to a book, how many different arrangements could be made?
asked by Mavis 
Data Management
The pin a cellphone consists of 6 distinct digits (no repetitions)selected from 09. How many possible combinations are there?
asked by Mavis 
Health
Give one cost and one benefit of exercising?
asked by Lexigirl 
Math
Which inequality models this problem? Eduardo started a business selling sporting goods. He spent $7500 to obtain his merchandise, and it costs him $300 per week for general expenses. He earns $850 per week in sales. What is the minimum number of weeks it
asked by Choco 
Social Studies
When were the middle ages? 1. before medieval times 2. between ancient and modern times 3. after modern times 4. between medieval and ancient times Who was Charlemagne? 1. king of Vikings 2. a French serf 3. a Greek emperor 4. king of franks this is the
asked by Breesa 
Math 8th Grade
8^(2)+9(12÷3×2)7 Solve And show steps
asked by Connexous User HELP ME PLEASE 
math
ezpain how 9 ×4 can help you find 9×8
asked by Aleeyah 
socail studies
What does porcelain mean and how did it affect Europe???(I cant have the same answer as silk cloh)
asked by hannah 
College Algrebra
Cynthia Besch wants to buy a rug for a room that is 25 ft wide and 32 ft long. She wants to leave a uniform strip of floor around the rug. She can afford to buy 588 square feet of carpeting. What dimensions should the rugâ€‹ have?
asked by Anonymous 
ELA
In which sentence about "Two Kinds" is the word nonchalantly used correctly? A. The family nonchalantly moved to United States from China. B. The piano was reconditioned nonchalantly. C. The daughter nonchalantly announced she was quitting piano. D. The
asked by Yandere~Chan 
chemistry
CaCl2(aq) + 2NaHCO3(aq) = CO2(g) + CaCO3(aq) + 2NaCl(aq) + H2O(l) what kind of chemical reaction is this? Please help me
asked by PLEASE help 
Math
You're planning on making 7 meatloafs for a party. You go to the store to buy breadcrumbs, and see they are sold by the canister. How many canisters do you need to buy? First, determine what information you need to answer this question, then click here to
asked by debbie penate 
SS
which of the following was a law established by the northwest ordinance? A.only territories with a population of at least 60,000 can apply for state hold*** B.the education would be paid for by the central government. C.anyone who escapes slavery would be
asked by Chase 
Algebra
For all real numbers a and b, 2a*b = a^2+b^2. True or false? If false, explain your reasoning. I'm pretty sure this is false, but I'm not sure how I would explain that?
asked by Sam 
chemistry
What is a chemical property of dihydrogen monoxide? please help
asked by PLEASE help 
Science
1. An atom that loses or gains electrons is called a(n)____. isotope proton neutron ion*** 2.Which subatomic particles are most involved in chemical bonding? protons electrons*** neutrons isotopes 3.The main types of chemical bonds are___. ionic, covalent,
asked by Sam 
Math
please help with this question .Name two planes that intersect in UV in the figure to the right. I have a diagram to post as well is their a way to post it here ?
asked by John 
SOCIAL STUDIES help me with all 20 questions
1. What significant effect did the treaty of Paris, signed after the French and Indian war, have in France? a. France had to withdraw to its empire in in Central and South American b. France had to allow the British to claim and settle the Ohio valley. c.
asked by dISCO unicoRN 
Powers
Is the correct answer to 2 x 10^26 / 1.66 x 10^27 =1.204^53? I can't remember the power laws
asked by Gunner 
Math
If 3x  8 = 31 find the value of 4x
asked by Anonymous 
chemistry
what is a chemical property of calcium chloride?
asked by PLEASE help 
math
Rebekah needed exactly 6 cups of water for a recipe , but she had only 2 cups that could measure 5 cups and 8 cups of liquid respectively. How could she use these two to get the exact amount she needs
asked by kelley 
Math
Find the simplest algebraic expression for the following situation. Susie, Sarah, and Tamera are planning to knit sweaters for their family. The sweaters will be made with yellow and blue yarn. Susie needs to order 5
asked by Nyasia 
SCIENCE
The organization of a cell could be compared to a small city. All of the organelles inside of the cell have a specific purpose that helps the cell to function properly. Which BEST represents the function of the cell wall? A) Policeman B) Sanitation worker
asked by PLZ HELP 
chemistry
Which answer choice correctly describes why larger atoms tend to break apart? The number of neutrons in the nuclei of larger atoms is equal to the number of protons, which makes these atoms less stable. The proportion of protons and neutrons in the nuclei
asked by check answer please 
Science
if you are given a graduated cylinder that has 56ml of water in it and you drop a rock into the cylinder, the water level rises to 62ml. explain how you find the density
asked by Anonymous 
math
Tyler used 2989 digits to number the pages of a book. How many pages does the book have? I know that pages 19 use 1 digit, total number is 9 Pages 1099 use 2 digits, total number is 180 Pages 100999 use 3 digits, 900 pages= 2700 with 25 extra pages Can
asked by emily 
english
can someone help me for free to put the word abstract in a sentence?
asked by katie 
physics?
Your bumper car is travelling at 2 m/s. The total mass of you and your car is 350 kg. An empty motionless bumper car with a mass of 250 kg is in your path. How fast in m/s will your car move after you collide with it head on?
asked by anonymous 
math
Sara, Cathy, and Tina have just finished playing three games. There was only one loser in each game. Sara lost the first game, Cathy lost the second game, and tina lost the third game. After each game, the loser was required to double the money of the
asked by Brennan 
math
(7^29)x(6+4)^2
asked by teresa 
chemistry
What kind of atoms typically have unstable nuclei? atoms with a neutron count greater than 90 atoms with a neutron count less than 90 atoms with a proton count less than 90 atoms with a proton count greater than 90 is it d?
asked by check answer please 
Math
What is the smallest number of avocados that can be placed in baskets with 50 and 75 pieces
asked by Sue cruZ 
Math
What is 4 units left of zero
asked by Shola 
English
Greeks Zeus what myths or stories are they involved in? and describe these myths or stories:
asked by Eli 
chemistry
kbear1 Read the following statement. Early on, atomic theory claimed that atoms were indivisible. Which answer choice describes how scientists refuted the claim of atomic theory stated above? (Select all that apply.) Scientists bombarded atoms of large
asked by check answer please 
English
Greek Zeus What did they create?
asked by Eli 
Math
A pattern of mosaic tiles lined up in this order: 8 cm, 5 cm, 8 cm, and 12 cm. How many meters long will be pattern be if it repeats 50 times?
asked by Cons 
chemistry
2. Consider the following solvent pairs. If mixed together, which pairs would form two layers? If they form two layers, which solvent would be on top? Find the densities for each of these solvents in the CRC Handbook. [6 mks] a. hexanes and water b. water
asked by shenice 
English
1. He brought me a book. 2. I was brought a book by him. 3. A book was brought to me by him. 4. A book was brought me by him.  Is #4 better than #3? Is #2 right? In a book, it is right. In another book, the verb bring can't be
asked by rfvv 
Math
What is the percentage if 21 is spent from 300?
asked by Jada 
Geometry
A circle measuring 50 millimeters across lies inside a larger circle 150 millimeters across. The area between them is shaded. 50 mm 150 mm
asked by Jayde 
Chemistry
At 500 K in the presence of a copper surface, ethanol decomposes according to the following equation. C2H5OH(g) CH3CHO(g) + H2(g) The pressure of C2H5OH was measured as a function of time and the following data were obtained. Time (s) PC2H5OH (torr) 0 250.
asked by Jamie 
Math
Topic: use function notation to evaluate equations. Evaluate the given equations for the indicated function values The questions I need help with; f(n)=5^n f(2)= f(3)= and f(n)=n f(9)= f(11)= Please, explain & help me :(
asked by Please, help me.