Monday
September 26, 2016

Posts by Ashley

Total # Posts: 3,293

Biochem
You prepare a 1L solution of 0.5 M imidazole. (pKa= 7.05). Calculate the pH of the solution after you add 0.1 moles of HCl. I need to create an ICE table. I also know I need to use the Henderson- Hasselbalch equation but I'm confused on what to plug in.
September 23, 2016

Physics
A painter of mass 80.0 kg stands on a platform of mass 75.0 kg and pulls on two ropes which hang over pulleys, as shown. He pulls each rope with a force of 400.0 N. Assuming a coordinate system where +y is up, calculate the y-component of the acceleration ay. ay can either be ...
September 21, 2016

Physics
An athlete performing a long jump leaves the ground at a 27.1 ∘ angle and lands 7.73 m away. 1). What was the takeoff speed? Express your answer using three significant figures and include the appropriate units. 2).If this speed were increased by just 3.0%, how much ...
September 16, 2016

trigonometry
what is the appropriate approximation of cot^-1 27
September 14, 2016

trigonometry
The shadow of a vertical tower is 65 ft long when the angle of elevation of the sun is 35 degrees. Find the height of the tower
September 14, 2016

Economics
Do you think a nation’s output should be distributed according to income or according to some other standard (such as basic human need)? Explain your answer.
September 13, 2016

Introduction to algebra
144 is the product of 9 and Holly's height . Use the variable h to represent Hollys height
September 12, 2016

Chem
Where is the NO3 and KCl?
September 11, 2016

Chem
Enter the net ionic equation, including phases, for the reaction of AgNO3(aq) and KCl(aq).
September 11, 2016

Math
Consider the graph of the parabola ​f(x)equals=x squaredx2. For xgreater than>0 and hgreater than>​0, the secant line through​ (x,f(x)) and ​(xplus+​h,f(x+h)) always has a greater slope than the tangent line at​ (x,f(x)). Choose the ...
September 10, 2016

Chemistry
What is the name of the compound NO3. (Not NO3-, nitrate)???? Please help!
September 10, 2016

Physics (Help Plz)
Ilya and Anya each can run at a speed of 8.00 mph and walk at a speed of 3.50 mph . They set off together on a route of length 5.00 miles . Anya walks half of the distance and runs the other half, while Ilya walks half of the time and runs the other half. 1) Find Anya's ...
September 9, 2016

NAVL Science (help)
Apparently the equation relationship is : P(vac) = P(atm.) - P(abs) But I need help to find the answers
September 8, 2016

NAVL Science (help)
The USS Ronald Regan's (CVN 76) barometer reads 30.14 in-hg. A vacuum gage at the port main condenser reads 18.25 in-Hg. What is the pressure relationship for this gage? What is the absolute pressure, in Psia, for the port main condensor?
September 8, 2016

SAT Prep's
A survey asked students from grades 8 and 9 about their favorite sport. The table contains data from the survey. Baseball Basketball Football Hockey Soccer Grade 8 8 2 12 3 5 Grade 9 6 3 10 2 4 The percentage of 8th grade students who said football is their favorite sport is...
September 4, 2016

Math problem soving
Ok if someone can help me understand I greatly appreciated. I want to know how this is the answer the numbers in table I know answer is day 6 but the pattern?. I got it wrong in my exam. The teacher explained it to me but I still don't get it. On July 5,in the area around ...
September 1, 2016

Math
PLEASE HELP! If 1 is the square root of dividing-OH FORGET IT IM SEXY AND YAAAAAS WERK IT
September 1, 2016

Math question for Steve
Hi Steve you answered on my question regarding bigfoot call I can see on the six day but what is the pattern tof get to six day . The numbers of calls total
September 1, 2016

Math problem soving
Ok if someone can help me understand I greatly appreciated. I want to know how this is the answer. I got it wrong in my exam. The teacher explained it to me but I still don't get it. On July 5,in the area around center village,there was great excitement. Six different ...
August 31, 2016

SS
How did United domestic policy boost production during the war?
August 25, 2016

Ss help pls don't have a lot of time
Is it that
August 22, 2016

Ss help pls don't have a lot of time
Kuwait
August 22, 2016

Ss help pls don't have a lot of time
What country on the Arabian peninsulas has the highest lireracy rate? A- Kuwait B-Yemen<<<<< C-Tunisia D-Algeria
August 22, 2016

SS
Which reason best explains the motivation for American expansionism?
August 19, 2016

Science
how does an individual’s genetic makeup interact with nutrition, smoking
August 17, 2016

Life Orientation
1: Define inhumane farming methods 2: Give at least three examples of inhumane farming methods and motivate why you regard them as inhumane 3: Suggest and motivate at least four ways by which these farming methods could be made humane
August 16, 2016

Art Help plzs
which word means to influence someone in a positive and exciting manner?
August 14, 2016

algebra
i didnt mean to add that sorry
August 10, 2016

algebra
1.) The volume of a rectangular box is 64 ft3. If the width is 3 times longer than the height, and the length is 9 times longer than the height, find the dimensions of the box. Define your variables then show all work using the equation editor. Write a sentence that explains ...
August 10, 2016

algebra
what typo?
August 10, 2016

Psychology
1.The rational style of learning sometimes conflicts with the traditional school environment. Could a school be created that takes advantage of the characteristics of the rational style? How? Are there types of learning for which the analytical style is clearly superior? 2....
August 9, 2016

Math calculus
An ice cube is 3 by 3 by 3 inches is melting in such a way that the length of one of its side is decreasing at a rate of half an inch per minute. Find the rate at which its surface area is decreasing at the moment when the volume of the cube is 8 cubic inches
August 7, 2016

Algebra
Sara can write a paper in 5 hours and Jasmin takes 7 hours. How long will it take the two of them writing together?
July 12, 2016

Algebra
Y=7X-16, 7X+ Y=3 are these lines perpendicular, parallel, or neither
July 6, 2016

Math
What is the least number possible with 5 in the thousand place , use the digits 4 5 6 7
June 28, 2016

ALGEBRA
A motorist drove 180 mi before running out of gas and walking 6 mi to a gas station. The motorist's driving rate was twelve times the walking rate. The time spent walking was 3 h less than the time spent driving. How long did it take for the motorist to drive the 180 mi?
June 25, 2016

algebra
As part of a conservation effort for a lake, 70 fish were caught, tagged, and then released. Later, 80 fish were caught from the lake. Four of these 80 fish were found to have tags. Estimate the number of fish in the lake.
June 25, 2016

Pre-Cal (Help Plz)
[Note: I've attempted these problems 4 times and I haven't been able to get any of them correct. I really need help with this, please.] Use the Law of Sines to solve for all possible triangles that satisfy the given conditions. (If an answer does not exist, enter DNE. ...
June 22, 2016

Physics
0.255 kg catcher is attached by a 45.0 cm long massless cable to a frictionless axle. The catcher is initially at rest. A 0.144 kg ball with a radius of 0.0875 m rolls without slipping from a height of 1.25 m and is captured by the catcher. For a solid ball, I = (2/5)MR2. (a) ...
June 21, 2016

Pre-Cal: Domain (cont.)
I figured out problems 1-7, arithmetically (thank you all for the help on that) But not number 8: f(x)=5/x , g(x)=7/(x+7) #7). Find (f/g)(x) Answer ==> [5(x+7)]/[7x] #8). Find the domain of (f/g)(x). (enter your answer using interval notation)
June 9, 2016

Pre-Cal: Domain
[Note: I really need help on these Domain questions. I've been struggling with this all day] -Consider the following: f(x)= 5/x , g(x)= 7/(x+7) -Find the solutions to the following: 1). (f+g)(x) 2). Domain of (f+g)(x) [Use interval notation too] 3). (f-g)(x) 4). Domain of...
June 9, 2016

college Algebra
Y=7x-16, -7x+y=3 are the lines perpendicular, parallel or niether
June 3, 2016

Statistics
A certain disease occurs in 4% of the population. A blood test for this disease shows a false positive 12% of the time. That means a test will show positive given that the person does not have the disease. What is the probability that a person tests positive but does not have ...
May 25, 2016

7th Math
Are you just trying to get other people to do your homework for you?
May 11, 2016

math
A simple random sample is drawn from a normally distributed population. The value of which of the following will not be known for certain but can be inferred?
May 9, 2016

Literature
Discuss the role of Edna. Why is she significant, even though she is a very minor character? What does she teach Keisha and Jalani about people who are homeless and/or needy? What is meant by her statement, "Yo spirit is a shinin' silver star, chile. Can't nobody ...
May 8, 2016

Common Core Math7
A school store has 1,200 pencils in stock and sells and average of 25 pencils per day. The manager reorders when the number of pencils in stock is 500. Write and solve an equation to find out how many days will pass before the manager needs to order more pencils.
May 5, 2016

Language Arts
1.d 2.c 3.b 4.c 5.a 6.a,c 7.c 8.d 9.c Ok here are the answers to English quiz for the book. Trust me they are right answers. I took the test. #LOTSOFLOVE
May 5, 2016

Language Arts
By reading the book, I thought it would be d. Because getting killed is the most tragic happening. But let me take quiz. I will tell you then.
May 5, 2016

Math
Did you get it?
May 3, 2016

health
The peripheral nervous system (select all that apply) Is made up of the brain and spinal cord Links the body to the brain and spinal cord Is made up of sensory and motor neurons Is responsible for thought and reasoning I think it could be b and c?
May 2, 2016

Math
The numbers of two consecutively numbered gym lockers have a sum of 153. What are the locker numbers?
April 25, 2016

Social Studies
What's the answer to all the questions
April 21, 2016

Math
A 6-inch pizza costs $3.50. A 12-inch pizza costs $11. How much less is the area of the 6-inch pizza than the area of the 12-inch pizza? Express your answer to the nearest hundreth.
April 20, 2016

Social Studies
Thank you Iris! No one else wanted to put it... so much for help...
April 15, 2016

Math
Ros's dog sparky is 24 inches long. One side of sparky dog house is 36inches long and the other side is twice as long as sparky. What is the distance around sparky doghouse
April 13, 2016

Math
A spa is 9 yards long and 7 yards wide. A locker room 8 yards long and 6 yards wide is at one end of the spa. How much floor space do the spa and the locker room take up?
April 13, 2016

Math
Can you explain to me how?
April 13, 2016

Math
Zack is planning to make a flower garden. He has 24 one-yard sections of fence that he place around the garden. He wants the garden to be as long as possible. What is the longest length he can use for the garden? How wide will the garden be?
April 13, 2016

Math
Thank you...
April 13, 2016

Math
The floor of a delivery van has an area of 56 square feet and is 8 feet long. How many rows of 8 boxes that measure 1 foot by 1 foot can be put in the delivery van?
April 13, 2016

Math
5. Joe Sullivan invests $9,000 at the end of each year for 20 years. The rate of interest Joe gets is 8% annually. Using the tables in the Business Math Handbook that accompanies the course textbook, determine the final value of Joe's investment at the end of the 20th ...
April 11, 2016

Business math - question help
At the beginning of each year for 14 years, Sherry Kardell invested $400 that earns 10% annually. What is the future value of Sherry's account in 14 years? A. $14,000 B. $13,100 C. $12,309 D. $12,709 Answer: D? I've calculated several times and come out with C or D ...
April 11, 2016

Elementary education
Yes math
April 8, 2016

Elementary education
A napkin ring is being made of cast silver. It has the shape of a cylinder 1.25 inches high, with a cylindrical hole 2 inch in diameter and a thickness of 1/16 inch. How many ounces of silver are needed? [silver weighs 6 ounces per cubic inch]
April 8, 2016

Math
An ice cream cone is 5 inches high and has an opening 3 inches in diameter. It is filled with ice cream and then given a spherical top. How much ice cream is there? The top part is 1/2 of a sphere.
April 8, 2016

Bus. Math
What is the effective interest rate of an 8% 13-week Treasury bill? Assume it is a $10,000 Treasury bill, and round your answer to the nearest hundredth percent. A. 8.20% B. 9.00% C. 8.17% D. 8.16% Answer: D??
April 4, 2016

Algebra
Lisa set a weekly goal of jogging 18 miles. On each of the first 3 days, she jogged 2 3/8 miles. How many more miles must she jog to reach her goal?
March 27, 2016

Business Managment
I've read this chapter several times and I am just not understanding this question...please help! 3. What aspect of an employee can be analyzed with the following connecting sequence? Needs ̈ Drives or motives ̈ Achievement of goals A. Needs C. Achievement B. ...
March 19, 2016

Chemistry
The specific heat of aluminum is 0.900*j/g*C How much heat is required to raise the temperature of a 30.0 g block of aluminum from to 25.0 oC to 75 oC?
March 18, 2016

Calculus
Two cruise ships leave the same point outside St. John’s harbor at noon. Ship A travels west at 20 km/hr, while Ship B travels south at 25 km/hr. Using calculus, determine how fast they are separating from each other at 2:00 p.m.
March 15, 2016

Geometry
Two model trains begin at the toy train station and travel continuously on two circular tracks of equal length. The first train completes a circuit in 20 seconds and the second train in 15 seconds. If both trains leave the station at the same time, after how many seconds will ...
March 14, 2016

Geometry
Two model trains begin at the toy train station and travel continuously on two circular tracks of equal length. The first train completes a circuit in 20 seconds and the second train in 15 seconds. If both trains, leave the station at the same time, after how many seconds will...
March 14, 2016

Algebra
If the area of a triangle is 110 square units and the base is 2x+12 and the height is x+5, what is the numerical base and height?
March 12, 2016

Math
Sam wants to find the height of a window in a nearby building but it is a cloudy day. Sam puts a mirror on the ground between himself and the building. He tilts it so that when he is standing up he sees the reflection of the window. The base of the mirror is 1.22 meters from ...
March 10, 2016

Math
Sam wants to find the height of a window in a nearby building but it is cloudy. Sam puts a mirror on the ground between himself and the building. He tilts it toward him so that when he is standing up he sees the reflection of the window. The base of the mirror is 1.22 meters ...
March 10, 2016

Math
Miguel is 5'10" tall and cast a shadow that is 4"8" tall, a nearby tower cast a shadow that is 8"9". How tall is the tower?
March 10, 2016

Chemistry
Elemental sulfur occurs as octatomic molecules, S8. What mass of fluorine gas is needed for complete reaction with 24.1 g sulfur to form sulfur hexafluoride? I don't know where to even start with this question
March 8, 2016

trig plz help
Solve. Round off your answer to the nearest foot. (The picture is not drawn to scale.) A balloon is 1500 feet above the ground. The angle of depression from the balloon to headquarters is 46°21'. How far is the headquarters from a point on the ground directly below the...
March 6, 2016

last 2 questions trig!!
4. Solve the triangle(s), if possible. Round to the nearest tenth. Solve the triangle. Side a = 8, side b = 10, side c = 12 6. Two boats leave the same dock at the same time. The first sails in a straight line N40°W at 36 miles per hour and the second goes in a straight ...
March 6, 2016

trigonometry
In questions 2A, 2B, and 2C below, find the exact values using the given information: sin α = 1/6 with α between 0 and π/2 sin β = 3/5 with β between π/2 and π 2A. Find cos (α + β) 2B. Find tan (2β) 2C. Find sin (β/2)
March 6, 2016

plz help trig!!!!!
A boat sails 20 km in a direction of N75°E. Draw the 20 km travelled in a direction of N75°E as a vector v in standard position. Find the component form of the vector v. Round your answers to the nearest hundredth. 2 pts. B. Next, the boat turns and sails 10 km in a ...
March 6, 2016

college algebra
there are three consecutive even integers such that twice the first is 20 more than the second. find the largest integer
March 5, 2016

stat
You take a trip by air that involves three independent flights. If there is an 72 percent chance each specific leg of the trip is on time, what is the probability all three flights arrive on time? (Round your answer to 3 decimal places.)
February 26, 2016

Algebra 2
Liz has a rectangular garden with a walkway around the edge. with the walkway included the entire garden area has a 20 foot length and an 18 foot width. At the edge of the walkway it is twice as wide as it is at the edge of the width. The area of the garden itself without the...
February 26, 2016

Physics
A small marble is placed in the bottom of a large bowl. If the marble is given a small push it will oscillate back and forth about the bottom of the bowl, moving along a small arc with radius 0.50 m. Assuming the marble rolls without slipping what is the period of this ...
February 24, 2016

Physics
The axle of a solid wheel of mass M and radius R is attached to a horizontal spring of constant k as shown below. Derive and simplify an expression for the period of the wheel’s oscillation, assuming it rolls back and forth without slipping. Answer T= 2pi squrt(3M/2k)
February 24, 2016

Physics
A certain object of mass 0.50 kg moves along the x-axis. Its potential energy is given by U = 3x2 + 8x. Starting at rest, the object is released at the origin. (a) Find the maximum speed attained by the object. (b) Find the position about which it oscillates. (c) Find the ...
February 24, 2016

science
Ammonium nitrate breaks down into Dinitrogen monoxide and dihydrogen monoxide
February 24, 2016

Math
The diagram below shows garden. Estimate part of the garden used for planting beans. Explain how you decided.
February 23, 2016

Physics
The teacher gives us the answer, but still thank you!
February 15, 2016

Physics
For each of the following functions describing the net force on a particle, determine any and all positions of equilibrium and characterize each as stable or unstable. (a) F = 4x − 2x3, (b) F = x2 + x − 6, (c) F = 5x − 9. Answer: a. x = 0, unstable; x = &...
February 15, 2016

chem
Suppose a g is collected in 145 mL flask whef-tfle temperature of the gas is 23°C and the pressure of the gas is 785 mm Hg. Calculate the volume ofthe gas at STP.
February 14, 2016

Math
What is sin Θ given (3,-2) is a point on the terminal of Θ? A.-2/3 B.-sqrt13/13 C.3sqrt13/13 D. -2sqrt13/13 I think it's C
February 12, 2016

Math
Cos(-Θ) = Sqrt2/3 SinΘ<0 What is the value of sin Θ? A. Sqrt7/3 B.-sqrt7/3 C.sqrt14/7 D.-sqrt14/2 I think it's C
February 12, 2016

Pre Algebra
Laura inherits $52,000 and decides to invest part of it in an education account for her daughter and the rest in a 5-year CD. If the amount she puts in the education account is $7,000 more than twice the amount she puts in the CD, how much money does Laura invest in each account?
February 7, 2016

math
What is the fist one?
January 30, 2016

spanish
d.
January 26, 2016

Math
123+45-67+8-9=100
January 25, 2016

Algebra Applications
Jacqueline is 115 miles away from Miranda. They are traveling towards each other. If Miranda travels 9 mph faster than Jacqueline and they meet after 5 hours, how fast was each traveling?
January 24, 2016

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