Thursday
July 24, 2014

Posts by jane


Total # Posts: 1,350

medicinal chemistry
the solubility product of PbSO4 at 298K is 1.6x10^-8 mol^2dm^-6. Calculate the solubility of PbSO4 in pure water

writing
i need synonyms, antonyms, and sentences that use the following words please: illusion consecutive horizon thank you so much!

writing
what are some antonyms and synonyms for the words: illusion (noun) horizon (noun) consecutive (adjective) debut (noun) gross (adjective) monastery (noun) thank you!

Chemistry
Arrange the ions: Cu^2+, Ni^2+, Mg^2+, & Zn^2+ in order of decreasing ability to be reduced... & in order of decreasing ability to be oxidized

math
what is the answer to did you hear about... on worksheet page 106

Health
Can you please check these sentences? Thank you, Writeaacher! 1) You must be respectful of your classmates and of your teachers. You should stand up when teachers (or your teachers?) enter the classroom. 2) You mustn't drink or eat during lessons but you can do it during t...

Health
Writeacher, could you please check if these statements on school rules (and the alternatives) in brackets are possible. Thank you 1) You must have your report card every time (correction: always with you) You must wear your tracksuit if you have PE. 2) You must park your scoot...

math (2nd Try)
You have 6 cups of sugar. It takes 1 cup of sugar to make 24 cookies. The function c(s) = 24s represents the number of cookies, c, that can be made with s cups of sugar. What domain and range are reasonable for the function? These are my options: domain: 1<s<6 Range: 24&...

math
A ball is kicked from ground level into the air. Its height y, in feet, after x seconds can be represented by the equation y = 40x -16x^2. What is the total elapsed time, in seconds, from the time the ball is kicked until it reaches grond level again? Is the answer - 25 s

math
An olympic swimmer is having his laps timed during practice. To be aware of his progress, the results are shown as order pairs (l, t) below: (1,19), (2,38), (3,57) (4,76). Which equation represents t, the time in seconds, as a function of l the number of laps that the swimmer ...

Math
You have 6 cups of sugar. It takes 1 cup of sugar to make 24 cookies. The function c(s) = 24s represents the number of cookies, c, that can be made with s cups of sugar. What domain and range are reasonable for the function? These are my options: domain: 1<s<6 Range: 24&...

math
Thank you so much for explaining it so well.

math
The out-of-pocket costs to an employee for dental insurance and dental expenses for one year are as follows: Premium, $4000; Deductible, $300; Co-payment, 17% (after the first $300 the employee has to pay). According to the plan outlined, total annual dental care costs, c, dep...

math
The value of a $20,000 car decreases every year, t. The equation below models this situation. 20000(1 - 0.04t) = 13,000 After how many years will the car be worth $13,000? Round to the nearest tenth if necessary. I was instructed that the answer is t = 8.75. How do I set it up...

Biology
In pea plants the colour of the peas is genetically controlled. Each pea represents a separate fertilisation. Smooth texture (S) is dominant to wrinkly (s) and green (G) colour is dominant to yellow (g). Following a breeding experiment with pea plants, the following ratio of p...

Chemistry
equivalence point

Chemistry
This volume of base and its corresponding pH is known as the______

Life Orientation
Ways in which Air pollution impact on the community

Health, Safety ,and Nutrition
sorry I'm working in the dark with a keyboard thats broken, but thats no excuse thanks for the reminder. I think it is flexability.

Health, Safety ,and Nutrition
A childs ability to jumpfor distance is an example of Agility or Flexability

Health, Safety ,and Nutrition
thank you Ms. Sue

Health, Safety ,and Nutrition
Which is a suitable toy for a toddler ? A a riding toy or B a walker I think it is A.

Saftey, and Nutrition
oops

Saftey, and Nutrition
B physcal is correct

Saftey, and Nutrition
A child who struggles to climb into a chair is confronting what kind of hazzard? B physcal or D enviromental

Health, Safety ,and Nutrition
Well its either C or D but my guess is the ceramic because we cook with stainless steel

Health, Safety ,and Nutrition
im not sure i cant find it in the text

Health, Safety ,and Nutrition
I dont think its A because we use styrofoam daily at work......

Health, Safety ,and Nutrition
children should not be served drinks in containers made of A. styrofoam B. uninsulated paper C. treated ceramic D. stainless steal

Health, Safety, and Nutrition
It s not A

Health, Safety, and Nutrition
A child who hasnt learned prerequisite fundamentals needed for a combination of motor patterns is suffering from A anxiety B poor mscle control C proficiency barrier D nonacquisition barrier

child developement
Is a correct?

child developement
A child throws a ball with speed and accuracy when he throws a ball to his teacher but his throws are slower and less accurate when plays with a group of friends. This difference is explained by A. classical stage theory B. probility theory C. locomotion-x theory D, Piaget,s T...

child development
A child who hasnt learned the prequisite fundamentals needed for a combition of motor paterns is suffering from A. anxiety B. poor muscle control C. proficiency barrier D.nonacquisition barrier

Physics
thanks!!!

Physics
Several volcanoes have been observed erupting on the surface of one of Jupiter's closest moons. Suppose that material ejected from one of these volcanoes reaches a height of 4.96 km after being projected straight upward with an initial speed of 132 m/s. Given that the radi...

math
There are two answers to chose from: A: 16.95 B: 79.05 Which is horizontal?

math
Landon is standing in a hole that is 6.7 ft deep. He throws a rock and it goes up into the air, out of the hole, and then lands on the ground above. the path of the rock can be modeled by the equation y= -0.005x^2 + 0.48x - 6.7, where x is the horizontal distance of the rock, ...

math - Help
The value of a $20,000 car decreases every year, t. The equation below model this situation. 20,000(1-0.04t) = 13,000 How many years will the car be worth $13,000? Round to the nearest tenth if necessary. I got 20,000(.96t)= 13,000, but I don't believe gives me the correct...

math - Additional Info
The value of a $20,000 car decreases every, t. The equation below model this situation. 20,000(1-0.04t) = 13,000 How many years will the car be worth $13,000? Round to the nearest tenth if necessary. I got 20,000(.96t)= 13,000, but I don't believe gives me the correct ans...

math
You have 6 cups of sugar. It takes 1 cup of sugar to make 24 cookies. The function c(s) = 24s represents the number of cookies, c, that can be made with s cups of sugar. What domain and range is reasonable for the function?

math
I understand most of the explanation except the part below: n log .96 = log .65 n = -.187/-.0177 Could you please explain? Thanks

math
The value of a $20,000 car decreases every, t. The equation below model this situation. 20,000(1-0.04t) = 13,000 How many years will the car be worth $13,000? Round to the nearest tenth if necessary. I got 20,000(.96t)= 13,000, but I don't believe gives me the correct answ...

math
You are planting a rectangular garden. It is 5 ft longer than 3 times its width. The area of the garden is 250 ft^2. Find the dimensions of the garden. I set it up like this: 3x +5 = 250 where x=8l.7. Is this correct so far, if so what do I do next? Thanks

math
The length of an open-top box is 4 cm longer than its width. The box was made from a 480-cm^2 rectangular sheet of material with 6cm by 6cm squares cut from each corner. The height of the box is 6cm. Find the dimensions of the box. Please show me in detail how to set this up a...

Geometry
What is the volume of a horizontal cylinder whose radius is 2.6 yd,and length is 8.4 yds to the nearest tenth of a cubic yard using 3.14?

math
Answer by factoring a quadratic equation. The length of an open-top box is 4 cm longer than its width. The box was made from a 480-cm^2 rectangular sheet of material with 6cm by 6cm squares cut from each corner. The height of the box is 6cm. Find the dimensions of the box. Ple...

Math - 2nd try
Please show me how to set up and solve: You have 6 cups of sugar. It takes 1 cup of sugar to make 24 cookies. The function c(s) = 24s represents the number of cookies, c, that can be made with s cups of sugar. What domain and range is reasonable for the function? math - bobpu...

math
The value of a $20,000 car decreases every year, t. the equation below models this sitution: 20000(1 - 0.04t) = 13,000. Please explain how to work this problem.

math
What domain and range is reasonable for this function?

Geometry
How do I find the perimeter of the rectangle (l=10.6in and h=6.1 in

Math
Solve for x in the following proportion x/60= 9/5

Math
1/14 + 3/16 + 4/14

Math
If you are in a hot-air balloon at a height of 100 meters, you can expect to see ____ km. Round your answer to the nearest kilometer and enter only the number.

math
You have 6 cups of sugar. It takes 1 cup of sugar to make 24 cookies. The function c(s) = 24s represents the number of cookies, c, that can be made with s cups of sugar. What domain and range are reasonable for the function? (I know that you get 144 cookies from 6 cups of suga...

math
What is the solution to the proportion shown below? (x+3)/4 = (x+2)/3

math
What is the solution to the proportion shown below? (x+3)/4 = (x+2)/3

Math
You have 6 cups of sugar. It takes 1 cup of sugar to make 24 cookies. The function c(s) = 24s represents the number of cookies, c, that can be made with s cups of sugar. What domain and range are reasonable for the function? (I know that you get 144 cookies from 6 cups of suga...

Math
What is the solution to the proportion shown below? (x+3)/4 = (x+2)/3

math
You have 6 cups of sugar. It takes 1 cup of sugar to make 24 cookies. The function c(s) = 24s represents the number of cookies, c, that can be made with s cups of sugar. What domain and range are reasonable for the function? (I know that you get 144 cookies from 6 cups of suga...

math
Which value below is a possible solution to the compound inequality 0<3x<30? A. 5 B. 3.2 C. 45 D. -17 If you are substituting these number for x, then C and D do not apply; however, A and B both work. Is this how I should be doing it?

math
Thank you for being so detailed. It helped to understand how to solve the problem.

math
What equation do you get when you solve v-m = v+nx for x How did you work this problem?

math
These are my choices of answers: A. c = (wz)/(m+y) B. C = (Wz+Y)/m C. C = wz-m-y D. c = wz+y+m This is where I get confused. Do I bring the wz and put on the top of m+y? Please explain. Thank you so much.

math
Show the formula correctly being solved for the variable c. W = (c + m +y)/z

math
Please solve and explain how to solve the compound inequality: 4 < 4a +3 < 18

math
Thank you so much for explaining it in detail. I really appreciate it.

math
Reiny, I'm not sure how to do that.

math
Which of the following equations represents the equation for the line that is parallel to the given line and passes through the given point? y= 1/5 x - 10; (15, -16) A. y = -5x +19 B. y = 1/5x + 91/5 C. y = 1/5 x - 19 D. y = 5x - 19 I do know that to be parallel the slopes nee...

Algebra I
Please show me how to solve: The value of a $20,000 car decreases every year, t. The equation below models this situation: 20000(1-0.04t)=13,000. After how many years will the car be worth $13,000. Round to the nearest tenth if necessary.

math
well this is no help at all so take this website down now

geometry
Find the geometric mean each pair of numbers. If nessary, give the answer in simplest radical form. 5 and 8

math
Thanks, Steve. You are always so helpful.

math
Which of the following below shows the expression below in simplest form? 2y^2 - 50/y - 5 Is it "C" A. 2(y-5) B. 2(x +50) C. 2(y+5) D. 2(y^2 +5)

Finance
Rent was $350 for 17 years. Based on 4% inflation, how much would the rent be at year 17?

English
it must be "D."

English
In which sentence is ceased used inappropriately and why: A. After the rain ceased, the sun came out. B. When the teacher told us to be quiet, we ceased talking. C. When we were full, we ceased eating. D. When it got cold, we ceased wearing our jackets. Is it "A?" If...

Chemistry
How much energy is needed to convert 90g of water (ice) at -85 degrees C to water (liquid) at 48 degree C?

Stats
In the library on a university campus, there is a sign in the elevator that indicates a limit of 16 persons. Further more, there is a weight limit of 2500 pounds. Assume the average weight of students, faculty and staff on campus is 150 pounds, the standard devaiton is 27 poun...

chemistry
Yes the AAS is atomic absorption spectrophotometry. Also thank you for your explanation.

chemistry
Yes the AAS is atomic absorption spectrophotometry. Also thank you for your explanation.

chemistry
Student A ran all her standards through the AAS at a specified C2H2/air flow rate. Just before she was to run her Cu sample, Student B turned down the flow rae of C2H2, thus lowering the flame temperature. Would students' A results of Cu in their sample be high, low or una...

biology
please help

biology
a class of pupils obtained results on a bar chart during a seashore investigation. they sampled the numbers of different seaweeds found in 0.25 m2 from the top shore (upper shore) to lower shore and found average percentage cover for each seaweed. describe how the pupils would...

math
Simplify the radical expression by rationalizing the denominator: 2(square root)108 / (square root) 180y Please show me how to set up and how to solve

math
Simplify th radical expression by rationalizing the denominator: 2(square root)108 / (square root) 180y Please show me how to set up and how to solve.

math
I loved the way you broke it down and explained it to me in detail. What a great help!

math
Please explain how to set this up and how to solve: A school's rectangular athletic fields currently have a length of 125 yd and a width of 75 yd. the school plans to expand both the length and the width of the fields by x yards. What polynomial is standard form represents...

american history
Sir George Grenville, King George's Chancellor of the Exchequer, enacted the Revenue Act of 1764 to raise revenue for maintenance of the British Army in America. In the colonies, it was commonly known as the _______ Act. A. Stamp B. Tea C. Sugar D. Quartering

Math
Mrs. Doris' kindergarten class is making Valentines day cards for the parents of the children. The class will be using three colors of construction paper: Pink, Red, and Purple. Mrs. Doris needs to find out the cost of the project so she can shop for the supplies duirng th...

physics
You have a 15.0 kg block of wood and you drop it from rest at a great height. It reaches terminal velocity of 31.3 m/s. If this is low-speed drag, what is the value of the constant b? If this is a high-speed drag, what is the value of the constant c?

statistics
it has been reported that 40% of all internet users have been attacked by viruses. If 20 people are randomly surveyed, find the following probabilities: a. At least 3 have been attacked b. No more than 5 have been attacked c. less than 15 have been attacked

CLC
On a wet racetrack, the maximum safe speed, to avoid sliding on a level circular curve with a radius of curvature of 56 m, is 73 km/hr. What is the coefficient of friction between the car's tires and the track surface?

math
given the function F(x)=7x+8. find each of the following f(10)= f(-6)= f(0)= please explain

physics
If it is 3m from the light source I think it will illuminate 9m^2. I know if it is 5m from the source it illuminates 25m^2 and also if it is 10m from the source it illuminates 100m^2 so it makes sense that 3m would illuminate 9m^2.

algebra
-7/3x+2/3=-11

Math
Suppose that the amount of algae is a pond doubles every 3 hours. If the pond initially contains 70 pounds of algae, how much algae will be in the pond after 9 hours? Is the answer 560? I was not sure how to set it up, but doubled it every 3 hours. If this is not correct, plea...

Psychology
According to Howard independent intelligence:

math
Joe plants a rectangular garden in the corner of his field. the area of the garden is 60% of the area of the field. what is the longest side length of Joe's field, in feet. Garden: 16ft x 12ft, Field: 2x ft by 2x ft.

mathq
300 yards. I had on the numbers, but did not know to add them. Thanks, again.

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