Posts by ann

Total # Posts: 1,522

Art
Movie professionals such as props desginers and graphic designers work together to create a believable film. Which method of creating a believable screenplay is unique to the job of a screenwriter. A. research of time period architecture and design B. research of time period ...

chem
I have no idea where to start with this one... Calculate the concentration (M) of sodium ions in a solution made by diluting 40.0ml of a 0.474m solution of sodium sulfide to a total volume of 300ml

english
paul was sad when the football burst

Algebra
Joel has twice as many CDs as Mariella has. subtracting seven from the number of CDs Joel has an dividing by three equals the number of CDs Blake has. If Blake has 25 CDs how many CDs does mariella have?

L.A
Okay thank you both for the help and sorry for the confusion I actually get it

math(5th grade)
If 1/2 of the choir are boys, and 1/4 of the boys are fifth graders, then (1/2) x (1/4) = 1/8 of the choir are fifth grade boys

Science please help
Which of the following types of pathogens can only reproduce itself if it takes over host cells? A fungi B bacteria C virus *** D protozoa am i right?

Math
A rectangular prism has a width of 92 ft and a volume of 240 ft3. Find the volume of a similar prism with a width of 46 ft. Round to the nearest tenth, if necessary. 30 ft3 40 ft3 60 ft3 120 ft3 can someone please help me. I'm having trouble working this out.

Algebra
The current of a river moves at 3 miles per hour. It takes a boat 3 hours to travel 12 miles upstream, against the current, and return the same distance traveling downstream, with the current. What is the boats rate in still water?

Algebra 2
Solve the equation log2(x^2-20) - log2X =3 the two is the base*

art last question
the onion-shaped domes on St. Basil's cathedral may remind Russians of what part of their culture heritage ? A. that their religion originated in the Middle East B. That their religion emphasized unity C. that their religion originated in Russia D. that their religion ...

Art
how could and observer distinguish the home of a rich inca from a regular citizen A. home of the wealthy were made with wood. B. homes of the wealthy had no trapezoid shapes. C. homes of the wealthy had stone roofs. D. Homes of the wealthy had no mortar i think its c or d am i...

Health
ahhh I get it thanks so much

Health
Is it C then?

Health
after neglecting to look before diving into the pool, your friend hits his head on a rock and disrupts his __________ causing him to be paralyzed from his waist down A. cardiovascular system*** B. circulatory system C. nervous system D. endocrine system Please check

physics
8.0 6.6

Geometry
A secant and a tangent to a circle intersect in a 42 degree angle. The two arcs of the circle intercepted by the secant and tangent have measures in a 7:3 ratio. Find the measure of the third arc. If someone could help me figure out how to do the equations, then that would be ...

Geometry
I know I got the x = 2 -8 correct so I don't understand how you got x = -3±5 or where the 9 came from.

Geometry
Solve each equation below by completing the square: 1) x^2 + 6x = 16 My steps: x^2 + 6x - 16 = 0 (x - 2 )(x + 8) x = 2, -8 I set it to zero and factored it out. But my teacher said not do it that way and do it by dividing by 2 but I don't understand how that works. I got ...

math123
what is the scientific notation of 0.000089956?

Psychology
If science depends on observation of empirical data, how can social scientists study nonobservable phenomena, such as thought patterns or imagery?

science
How much latent heat is needed to completely melt 368 gram ice cube?

Maths
I purchased a product that was listed at RM 2000. If a chain discount of 10%, 5% and a 2% were given and a chain discount of 5% was also given for prompt payment, what was the net price that I paid?

ALGEBRA
if a product that had a cost of rm2000 was sold with a markup percentage of 80% based on retail price, what was the retail price?

Math
Is rotating the point L(4,4) 90° ABOUT THE ORIGIN THE SAME AS REFLECTING THE POINT OVER THE X-AXIS? EXPLAIN. I get that the rule is counter clockwise and you rotate x and y and then change the value of the 1st sign.. becomes -y,x but i don't know how to answer the ...

MATH
a person has 56 brownies to package for bake sale. the brownies will be sold in packs of 3. how many brownies will NOT BE PACKAGED? CHOICES 3, 5, 4, 9

statistics
The scores for math test #3 were normally distributed. If 15 students had a mean score of 74.8% and a standard deviation of 7.57, how many students scored above an 85%?

Basic Statistics
The math grades on the final exam varied greatly. Using the scores below, how many scores were within one standard deviation of the mean? How many scores were within two standard deviations of the mean? 99 34 86 57 73 85 91 93 46 96 88 79 68 85 89

Biology
If 320 F2 offspring resulted from this F1 cross, how many would be green?

Chemistry
E=hv E=energy h= Planck's constant =6.626 x 10^-34 v= frequency 1. What is the energy of light having a frequency of 2.28 x 10^12? ( I do have an answer for this but I'm not so sure about it.) 2.What is the energy of light with a wavelength of 2.18 x 10^-5? 3. A photon...

English
What kind of character trait best describes this? Someone who blames someone else for causing their love one's death, they constantly blame them and believe that they are the reason why that person died and they cause their love one to die but they had no actual proof but ...

maths
April has 3 pounds of trail mix. She puts equal of amounts in each of 8 bags. How much trail mix is in each bag?

math
a vertical flagpole casts a shadow of 12ft long at the same time that a nearby vertical past 8ft casts a shadow 3ft long. Find the height of the pole

Science Help
If your question is which one is renewable, then it is corn.

Physics
A wheel starts from rest and rotates about its axis with constant angular acceleration. After 8.7s have elapsed, it has rotated through an angle of 20 radians. What is the angular acceleration of the wheel? What is the angular velocity when the time t = 8.7 s? I got the answer...

Physics
A wheel starts from rest and rotates about its axis with constant angular acceleration. After 8.7s have elapsed, it has rotated through an angle of 20 radians. What is the angular acceleration of the wheel? What is the angular velocity when the time t = 8.7 s? I got the answer...

Physics
α = 1.00 rad/s2

Physics
An iron disk has a radius of 0.625 m and a mass of 217 kg. The disk is mounted on its axis so that it is free to spin. How much force is required if the force is applied at a distance 19.5 cm from the axis of rotation?

Physics
A wheel starts from rest and rotates about its axis with constant angular acceleration. After 8.7 s have elapsed, it has rotated through an angle of 20 radians. I found that the angular velocity at 8.7 s is 4.60 rad/s. What is the angular acceleration of the wheel? What is the...

Physics
A clock has a second hand whose tip rubs against the inside of the glass cover. If the frictional force between the glass cover and the tip of the second hand is 0.0020 N and the length of the hand is 9.5 cm, what is the minimum torque that must be applied to the second hand ...

Physics
A 30-caliber rifle with a mass of 3.54 kg fires a 7.33- g bullet with a speed of 596 m/s with respect to the ground. What kinetic energy is released by the explosion of the gunpowder that fires the bullet? (Note there is a tolerance 0.1 percent for the answer)

Physics
A distant planet has a mass of 0.6400 ME and a radius of 0.9000 RE. What is the ratio of the escape speed from this planet to the escape speed from the earth?

Physics
A 30-caliber rifle with a mass of 3.54 kg fires a 7.33- g bullet with a speed of 596 m/s with respect to the ground. What kinetic energy is released by the explosion of the gunpowder that fires the bullet? (Note there is a tolerance 0.1 percent for the answer)

Physics
A distant planet has a mass of 0.6400 ME and a radius of 0.9000 RE. What is the ratio of the escape speed from this planet to the escape speed from the earth?

College Algebra
graph linear equation Y=1/2x-3 and -x+2y=-6

Physics test review
A ball is thrown horizontally from the top of a building 30.1 m high. The ball strikes the ground at a point 66.8 m from the base of the building. The acceleration of gravity is 9.8 m/s2 . Find the time the ball is in motion. Answer in units of s Find the initial velocity of ...

statistics
Suppose you are given data from a survey showing the IQ of each person interviewed and the IQ of his or her mother. That is all the information that you have. Your boss has asked you to put together a report showing the relationship between these two variables. What could you ...

Technology for Biobased Products
QA.A bio-PDO production process will also produce microbial biomass. A huge surplus biomass of roughly 10% of the PDO mass should be expected. A good use of this microbial biomass could be food of feed. Which organism properties disqualify their use in food/feed production ...

math
the windshield on an automobile is inclined 42.5 degrees with respect to the horizontal. assuming that the windshield is flat and rectangular, what is its area if it is 1.50m wide and the bottom is 0.48m in front of the top?

algebra
Write a word problem about collecting: 5 + 6x = 21 + 4x

algebra
Julie and two friends babysat for 5 hours yesterday. They divided their total earnings equally. Julie spent $8 from her part of the money and had $11 left. What was the total amount the three friends earned?

physics
John's mass is 86 kg, and Barbara's is 55 kg. He is standing on the x axis at xj = +9.0 m, while she is standing on the x axis at xb = +2.0 m. They switch positions. How far and in which direction does their center of mass move as a result of the switch?

Dudas
John's mass is 86 kg, and Barbara's is 55 kg. He is standing on the x axis at xj = +9.0 m, while she is standing on the x axis at xb = +2.0 m. They switch positions. How far and in which direction does their center of mass move as a result of the switch?

thermochemical equation:
Given the following thermochemical equation: NO2 (g) + O2 (g) → NO (g) + O3 (g) ΔH = - 212 kJ Which has more enthalpy, the reactants NO2 (g) + O2 (g), or the products NO(g) + O3 (g) ? The reactants have more enthalpy. The products have more enthalpy. The reactants ...

math
Identify the solution of the system of equations if any -2x-4y=1 , 12y=-6x-3 is this no solution or (o,-1) (-1,0) or infinitelt many solution

physics
A toy car in the figure below runs off the edge of a table that is h = 1.150 m high. The car lands d = 0.410 m from the base of the table.

physics
what are the dimensions of power?

Physic
A 1/2 inch diameter piston moves 10 inches when 30 Lbs of force is applied how far will it move a 6 inch diamter piston and how much weight will this piston lift.

Physics
A highway curve with a radius of 800 m is banked properly for a car traveling 100 km/h. If a 1620- kg Porshe 928S rounds the curve at 220 km/h, how much sideways force must the tires exert against the road if the car does not skid?

Physics
During 0.19 s, a wheel rotates through an angle of 2.42 rad as a point on the periphery of the wheel moves with a constant speed of 2.88 m/s. What is the radius of the wheel?

math
Max had 4/5 bag of trail mix. He divided the trail mix equally amoung 5 friends. What fraction of the full bag of trail mix did each friend receive?

math
Leah picked 2.6 pounds of blackberries. Ashlyn picked 1.8 times as many pounds of blackberries. How many pounds of blackberries did Ashlyn pick?

Micro-Economics
Suppose that the government imposes a tax on heating oil. 1. Would the deadweight loss from this tax likely be greater in the first year after it is imposed or in the fifth year? 2. Would the revenue collected from this tax likely be greater in the first year after it is ...

CHEM
A 1.000g mixture of As4S6(s) and As4S4(s) was burned in excess O2. The products were As4O6(s) and SO2(g). The solid product had a mass of 0.905g. Find the mass % of As4S4(s) in the original mixture.

English
How did the man-made environment Olaudah Equiano was forced into shaped his opinions and perspectives towards the first white men he encountered?

Algebra
53 % margin of 5 percentage is what

physics
A third baseman makes a throw to first base 39.8 m away. The ball leaves his hand with a speed of 43.0 m/s at a height of 1.4 m from the ground and making an angle of 23.7 o with the horizontal. How high will the ball be when it gets to first base?

math
stamjps are sold in bookiets of 100,50, and 10.find as many different ways to buy 200 stamps as you can. record your work in the chart. could you give me some examples...please!

math
stamjps are sold in bookiets of 100,50, and 10.find as many different ways to buy 200 stamps as you can. record your work in the chart. I don't understan what to do here. help

Math
In rectangle PQRS, diagonal PR makes a 60 degrees angle with side PS. If PR =10, what is the area of the rectangle?

physical science
A simple lever is used to lift a heavy load. When a 60-N force pushes one end of the lever down 1.2 m, the load rises 0.2 m. Show what the weight of the load is 360N.

math
A square flower bed is 10 feet long on a side. How many plants are needed if they are spaced 6 inches apart around the outside of the bed? With solution

algebra
24 - a - b answer 13

accounting
Westchase Supplies reported sales of $5,000,000, cost of goods sold of $3,200,000, operating expenses of $1,400,000 and income tax expense of $160,000 for the year What was the company’s net income for the year?

psychology last one tonight need to know if correc
_____________ is a biologically based style of interacting with the world that exists from birth. Fill in the blank. a. Culture b. Personality c. Temperament d. Attachment my answer is C

Psychology need to know if i have correct answer
What is the best explanation of the universal perspective in culture? a. Survival is related to the degree that people can adapt to their environments and to the contexts in which they live b. Evolutionary theorists believe people have evolved a set of motives and strivings ...

Psychology need to know if i have correct answer
Ms sue I believe now that i read it over it would be C

Psychology need to know if i have correct answer
What is a comprehensive theory on the structure of personality that contributes to our knowledge about the origins of psychopathology? a. Psychology b. Psychotherapy c. Psychoanalytic model d. None of the above My answer is B

Psychology need to know if i have correct answer
What would be a concern to take into consideration when interpreting data from cross-cultural studies? a. Effect sizes b. Whether the measures are equivalent c. Cultural attribution fallacy d. All of the above My answer is D

stats
A hospital claims that the proportion of full-term babies born in the hospital who weigh less than seven pounds is no more than 39% . Suppose that we want to carry out a hypothesis test for this claim, suspecting otherwise. State the null hypothesis and the alternative ...

english
In Wells, The War of the Worlds which of the following explains what made the humans so complacent? 1 Early in the 20th century came the great disillusionment 2. It is not only distant from time's beginning but nearer its end 3.Its physical condition is still largely a ...

english
In Wells, The War of the Worlds which of the following explains what made the humans so complacent?

Dental Questions Check Help Please!!!
The most common transaction a dentist office will use under the HIPPAA's electronic transaction and code set rule is

college physics
sd 40 jbds

chemistry
What is a Reaction that you would expect when acetylsalicylic acid (aspirin) is heated in the presence of a CONCENTRATED acid? Thanks in advance!

chemistry
If a reaction has rate constant of 1.33 s^-1 at 206 deg C and an activation energy of 58.6 kj mol^-1. whats the rate constant at 358 deg C ?

chemistry
Hello, Please help me with this question! Which dilution would turn 10% (by mass) HCl solution into 0.100 M HCl solution? Density of 10% HCL = 1.08 g ml^-1

physics
A Honda Civic travels in a straight line along a road. Its distance x from a stop sign is given as a function of time t by the equation x(t)= α t2− β t3, where α = 1.43m/s2 and β = 4.60×10−2m/s3 . 1)Calculate the average velocity of the ...

math
4x+5y=5 x=y-10

nau
4x+y==21 7x-4y=8

Ethics and moral reasoning
What is the difference between an internal good and an external good according to Maclyntyre's account?

Ethics and moral reasoning
Need help with Ethics and moral reasoning Reading Quiz 4

chem/math
I need help solving for x here (I don't get the right answer, which is supposed to be x=0.137) 3.88 = 3.74 + log (x/0.1) Please explain how you would get that answer Thank you

chemistry
What are the consequences of using only a very dilute solution of HCl or a very concentrated solution of HCl in attempting to return the pH? in attempting to return the pH to 7? What is a better alternative?

statistics
the selections are not independent

English
B

Statistics
The life of a blood pressure monitor has a normal distribution with an average of 40 years and a standard deviation of one year. What should the warranty be to replace a malfunctioning monitor with - if the company does not want to replace more than 1% of all the monitor. ...

Physics
A sled of mass 9.0 kg is sliding across a frozen lake with a speed of 5.0 m/s. A package of mass 4.0 kg is dropped onto it from above. Assuming there is no friction between the sled and the lake, what is the new speed of the sled?

Biology Please help
There are several genes that control eye color; eye color is therefore called a (A) Polygenic trait. Besides genes that directly control eye color, there are other genes that can affect the color of your eyes. For example, your eye color genes may code for green eyes, but if ...

Algebra
13a+9b-2a-4b

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