Saturday
October 22, 2016

# Posts by Pam

Total # Posts: 741

Chemistry
I need to prepare 500 ml of a 37% w/w solution of sulfuric acid using 96% sulfuric acid in deionized water. I have been shown a bunch of different ways and they all give a different answer and I'm getting frustrated
October 12, 2016

science
A pipe of diameter 80mm is fitted with a branch section into which fit two pipes of equal diameter. If it is desired that the velocity remain constant throughout, determine the required diameter of each of the branch pipes.
September 13, 2016

Math
Posted by Pam on Thursday, July 21, 2016 at 10:41am. One day 3/8 of the students in Jack's class ate toast for breakfast. Another 1/8 of the students ate oatmeal. Jack added the fractions and found the sum was 7/8. Which statement best describes the sum 7/8? A) It is ...
July 22, 2016

Math
I am having a little trouble figuring this problem out if someone could help I would appreciate it. Question: The angle of elevation to the top f a tree sighted from ground level is 19degrees. If the observer moves 60 ft closer, the angle of elevation from ground level to the ...
July 21, 2016

Math
Posted by Pam on Thursday, July 21, 2016 at 10:41am. One day 3/8 of the students in Jack's class ate toast for breakfast. Another 1/8 of the students ate oatmeal. Jack added the fractions and found the sum was 7/8. Which statement best describes the sum 7/8? A) It is ...
July 21, 2016

Math
July 21, 2016

Math
One day 3/8 of the students in Jack's class ate toast for breakfast. Another 1/8 of the students ate oatmeal. Jack added the fractions and found the sum was 7/8. Which statement best describes the sum 7/8? A) It is reasonable because 1/2 + 0 = 1/2. B) It is reasonable ...
July 21, 2016

Math
Thank you Ms. Sue!
July 5, 2016

Math
Pen has 1/2 cup and 1/8 cup measuring cups. What are two ways he could measure out 1 3/4 cups of flour? Plz help thanks!
July 5, 2016

algebra
solve for x Inx-In5=0 x=5 n=0
June 20, 2016

homework
Set up a integral and evaluate it. y=x^8/9, y=1 and x=0 about the y-axis
April 28, 2016

Physics Rolling Motion!!
A spherically symmetric object with radius R= 0.51m and mass of M= 3.5kg rolls without slipping accross a horizontal surface with velocity of V = 4.4m/s. It then rolls up an incline with an angle of 30 degrees and comes to rest a distance d = 2.2m up the incline, before ...
April 27, 2016

PHYSICS Momentum!! Collision HELP
A ball A of mass .202 kg is moving at a velocity of 2.0 m/s toward a ball B that is at rest. (a) Calculate the initial momentum for Ball A and Ball B. (b) Calculate initial Kinetic energy for Ball A and Ball B. My doubt since its asking for initial moment only, can I simply ...
April 12, 2016

PHYSICS Collision of two Balls Momentum!! HELP
A ball A of mass .202 kg is moving at a velocity of 2.0 m/s toward a ball B that is at rest. (a) Calculate the initial momentum for Ball A and Ball B. (b) Calculate initial Kinetic energy for Ball A and Ball B. My doubt since its asking for initial moment only, can I simply ...
April 11, 2016

Chemistry
How do I make 500ml of a 0.3% chlorine dioxide solution from 6.4% tablets?
March 31, 2016

Biology
Chloroplast
March 31, 2016

Chemistry
How do I make a 500ml amount of a 0.3% aqueous solution of chlorine dioxide
March 31, 2016

Math
What is difference between cube and square prism?
March 22, 2016

Chemistry
How do I prepare 1liter of a 93.1% w/w solution of sulfuric acid using 98% sulfuric acid and water?
March 14, 2016

Math
Thank you Ms. Sue.
February 12, 2016

Math
Got it..its B
February 12, 2016

Math
I think it's A
February 12, 2016

Math
Eli has 36 books. He places the same number of books on each of 9 shelves. Which equation below could be used to find the number of books on each shelf? A 36/ ___=6 B ___ x9=36 C 36/6 = ___ D 6x9=____ Plz help..thanks
February 12, 2016

Statistics
A population =100 and sd=25. A sample (n=150) has X=102. Using 2 tails of the sampling distribution and the .05 criterion. What is the critical value? Is the sample in the region of rejection? What does this indicate about the likelihood of this sample occurring in this ...
February 4, 2016

statistics
You measure 64 children , obtaining a X of 57.28 . The mean is 56 and sd is 8 Slug says that bc this X is so close to the mean of 56 , this sample could hardly be considered gifted. A. Perform the appropriate statistical procedure to determine whether he is correct B. In what ...
January 31, 2016

statistics
You measure 64 children, obtaining a X of 57.28. Slug says that bc this X is so close to the mean of 56, this sample could hardly be considered gifted . A. Perform the appropriate statical procedure to determine whether he is correct. B. In what percentage of the top scores is...
January 30, 2016

statistics
Company stock price of which has risen so that over the past ten trading days , it's mean selling price is \$ 14.89 . Over the years the mean price of the stock has been 10.43 ( sigma = 5.60 ) you wonder if the mean selling price is over the next ten days to go higher . ...
January 30, 2016

statistics
For the data 95 10 7 9 10 11 8 12 7 6 9, find the raw scores that correspond to the following : z= +1.22; z= -0.48
January 30, 2016

Math-fractions
Thank you
January 29, 2016

Math-fractions
A book shelf is 3 1/2 feet long. Each book on the shelf is 5/8 wide. How many books will fit on the shelf? I don't know how to turn fractions into feet. Help please
January 29, 2016

statistics
Identify the conditions of the independent variable , the dependent variable , their scales of measurement , which measure of central tendency and variability to compute and which scores you would use in the computation . We test whether participants laugh longer ( in seconds...
January 23, 2016

statistics
Ms.Sue What 2 aspects of the data determine which measure of central tendency use?
January 21, 2016

statistics
What 2 aspects of the data determine which measure of central tendency use?
January 21, 2016

statistics/ mean median mode
What 2 aspects of data determine which measure of central tendency to use ?
January 19, 2016

statistics/ mean median mode
Describe one personal score for each type of measurement scale (ratio, interval , ratio, ordinal) how the score relates/related to the appropriate measure of central tendency (mean, mode, median ). Miles per month that you spend commuting GPA of several terms/year Average ...
January 19, 2016

statistics/ mean median mode
1. What two aspects of the data determine which measure of central tendency to use? 2. Why is it best to use the mean with a normal distribution ? Questions are from chapter 4 Basic Statistics for the Behavioral Sciences 7th edition
January 19, 2016

statistics
1. What two aspects of data determine which measure of central tendency to use? 2. Why is it best to use the mean with a normal distribution ?
January 19, 2016

Statistics
The intermediate answers from some calculations based on whole number scores are X= 4.3467892 and Y= 3.3333. For the next step, after rounding, what values of X and Y do we use?
January 17, 2016

STATISTICS
Describe one personal score for each type of measurement scale (ratio, interval, ordinal, and ratio). Explain how the personal score relates/related to the appropriate measure of central tendency (mean,mode, median). Miles per month spent commuting GPA of several terms Average...
January 15, 2016

geomtery
IN ABC, m<BAC =3x+9, m<ABC =8x+11, and m<BCA= 5x-8. Find the measures of <1,<2,<3. SHow your woek for solving x and finding each angle measure clearly. IN ABC, m<BAC =3x+9, m<ABC =8x+11, and m<BCA= 5x-8. Find the measures of <1,<2,<3. SHow ...
December 21, 2015

Spanish 2
Thank you
December 16, 2015

Spanish 2
Does the paragraph show both preterito and imperfecto. Cuando yo tenia unos diez anos yo solia pertenecer a Girl Scouts. Nos conocimos una vez a la semana old miercoles en son Iglesia del barrio. Nos enteramos de la peoniesa, la artesania, la religion, ayudar a los menos ...
December 16, 2015

Spanish 2
Did I do it correctly ?
December 16, 2015

Spanish 2
In Spanish
December 16, 2015

Spanish 2
How to write a paragraph with both preterito and imperfecto. When I was about ten years old I used to belong to Girl Scouts. We met once a week on Wednesdays evenings at are neighborhood church. We learn the pledge, crafts, religion, and help those less fortunate. I even sold ...
December 16, 2015

Algebra
Write an equation of the line containing the given point and parallel to the given line. (6, -6); 7x-2y=5
December 9, 2015

math
Your taxi charges \$3.00 for the first one-fourth of a mile and \$0.50 for each additional one quarter of a mile. How much will the charge be if you have driven for 1.75 miles?
October 14, 2015

science
A cubic container full of hot water at a temperature of 90 °C is completely lagged with an insulating material of thermal conductivity 6.4x10-4 Wcm-1K-1 (6.4x10-2 Wm-1K-1). The edges of the container are 1.0 m long and the thickness of the lagging is 1.0 cm. Estimate the ...
October 14, 2015

science
An iron cylinder with radius 1.0 cm and length 25 cm has one end held at 250°C and the other at 20°C. Find the heat-flow rate through the cylinder
October 8, 2015

grammar essentials
How would you change this sentence- The family history includes myocardial infarction in the father, who relates he died from this at an early age.
October 2, 2015

Physics
A concrete sidewalk is constructed between two buildings on a day when the temperature is 25 0C. The sidewalk is 6 m long and consists of two slabs each 3 m in length and of negligible thickness. What would be amount of buckling (displacement) upwards that will occur in the ...
September 27, 2015

Algebra
Use method II to simplify the following complex rational expression. 5-13/x-2 divided by 6/x-2-7. I'm not sure if this is the proper set up, but it's suppose to be a division on top and bottom. Please if someone could help
September 26, 2015

Math
Thanks for ur help. Really appreciated!
September 22, 2015

Math
Thanks for ur help. Really appreciated!
September 22, 2015

Math
Draw 5 square and divide each square into eighths. Right?
September 22, 2015

Math
8 students share 5 square pieces of cake equally. Draw to show how much each person gets.
September 22, 2015

Math
Determine the value or values of the variable for which the expression is defined. 3/x-5
September 14, 2015

Math
1 hr = 60minutes 1 day = 24 hrs = 1440 minutes in a day 300000/1440 = 208.33 ?
September 7, 2015

Math
On what day in the year 1943 was the year 300 000 minutes old?
September 7, 2015

Math
Sondra has a lot of cats (which have four legs) and parakeets (which have two legs) but no other pets. Among her pets, Sondra counts 57 heads and 176 legs. How many cats does she have?
September 7, 2015

Math
Draw the graph n < 4, with the constraint n > 0.
September 5, 2015

math
I know you have to group this problem but I'm not sure how to solve this, if someone could step by step I would appreciate it. 6x^3 +14x^2-27x-63
September 1, 2015

Algebra
A rock is thrown upward with a velocity of 15 meters per second from the top of a 49 meter high cliff, and it misses the cliff on the way back down. When will the rock be 3 meters from the water, below? Round your answer to two decimal places.
August 29, 2015

Math
Which inequality represents this situation? Ari works h hours each day. He earns \$21 per hour. Ari earns less than \$150 a day. How many hours does he work each day? a. 21h > 150 b.21 + h < 150 c.h/21 < 150 d.21h < 150
August 10, 2015

calculus
when the line x = 9 please
July 22, 2015

calculus
find volumes of solids generated by revolving the regions bounded by the graphs of the equations about the given lines. y=square root of x y=0 x=3
July 22, 2015

algebra
A company that manufactures bikes has a fixed cost of \$8,000. It cost \$800 to produce each bike. The total cost for the company is a sum of fixed cost and variable costs. Write the total cost, C, as a function of the number of bikes produced x then find C(70). Find the cost ...
July 12, 2015

Math
An invoice for a camcorder that cost \$1210 is dated August 2, with sales terms of 4/10 EOM. If the bill is paid on September 5, how much is due for the net amount due?
July 1, 2015

algebra
In mixing a weed killing chemical a 40% solution of the chemical is mixed with an 85% solution to get 20 L of a 60% solution. How much of each solution is needed?
May 9, 2015

math
Given z(t) = square of t +1− t^3 , find z(2).
April 13, 2015

chemistry
What volume of a 0.553 M calcium hydroxide solution is needed to exactly neutralize 7.34 grams of KHP
April 9, 2015

UNISA
he earns 0.8% interest per month while the amount is less than R70000 and 0.7% interest per month if the amount is equal to or more than R70000, the interest is added to the total amount, calculate how many months he will have to save
April 7, 2015

Chemistry
Nitrogen dioxide reacts with carbon monoxide to produce nitrogen monoxide and carbon dioxide in the reaction, . The first step in the reaction is proposed to be two NO2 molecules colliding to form NO3 and NO. The NO3 intermediate then reacts with CO to form CO2. What is the ...
February 16, 2015

Physics
Does the potential inside a hollow condutorchange?
February 10, 2015

Math
If a spherical tanl 4m in diameter can be fillef with a liquid for \$900, find the cost to fill a tank 12m in diameter. The cost to fill the 12m tank is \$__.
January 22, 2015

math
-3n-(-1)=29 My answer is n=9.9 I doubt plZ help. Thank you,
November 2, 2014

math
At which grade level is it most appropriate for children to group by more than one attribute?
October 19, 2014

social studies
What kind of industry is diamond ring?
October 4, 2014

physics
A chunk of Martian rock falls off of a cliff and drops 47.7 m in 5.00 s. What is the acceleration due to gravity on the surface of Mars?
September 29, 2014

algebra
Thank you very much for your time and help!
September 22, 2014

algebra
105/(-20+15) ------------------- 45/(-9)+12 Plz help me to solve this question. Thanks!
September 22, 2014

Math
Write the opposite of 0 Celsius and 32f temperature as integer. Plz help
September 6, 2014

math
Find the geometric series whose second term is 1.5 and the fifth term is 0.1875
August 19, 2014

Algebra
The sum of two numbers is 9. Four times the larger number plus three times the smaller number is 48. Find the numbers. Thank you
August 12, 2014

Algebra
Two angles are complementary. Their difference is 50^*. Find the angles.
August 12, 2014

Math
A basketball player scored 18 times during one game. He scored a total of 35 points, two for each two point shot and one. For each free throw. How many two point shots did he make? How many free throws?
August 12, 2014

Algebra
The plans for a she'd call for a rectangular floor with a perimeter of 276ft. The length is two times the width. Find the length and the width
August 10, 2014

Math
An architect has allocated a rectangular space of 275ft^2 for a square dining room and a 14ft wide kitchen. Find both the width of the square dining room and the length of the entire rectangular space.
August 5, 2014

Math
The number of tickets sold each day for an upcoming performance of Handel,s Messiah is given by N(x)=-0.4^2+8.8x+10, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold that day?
August 5, 2014

Math
A model rocket is launched with an initial velocity of 164ft/sec. It's height h, in feet, after t seconds is given by the formula h=164t-16t^2. After how many seconds will the rocket first reach a height of 400ft?
August 2, 2014

Math
An architect has allocated a rectangular space of 240ft^2 for a square dining room and a 14 ft wide kitchen. Find both the width of the square dining room and the length of the entire rectangular space.
August 2, 2014

Algebra 2
Find the exact value of cos 315 degrees. answers: 3/2, -1/2,2/2, -2/2
May 19, 2014

Math
dartboard is 16 inches bulls eye 6 inches
May 19, 2014

Math
Jeff has 12 coins that have a total value of \$2.25.If there are only quarters and dimes, how many of each kinds are there?
May 3, 2014

Math
A patio was to be laid in a design with one tile in the first row,two tiles in the second row,three tiles in the third row, and so on. Mr Tong had 60 tiles to use. How tiles should be placed in the bottom row to use the most tiles?
May 3, 2014

Math
The book shelly is reading has 235pages. She has already read 110 pages. If she reads 25 pages a day from now on, how many more days will it take her to complete the book?
May 3, 2014

Algebra
A scientist wants to research the potential spread of germs by contact. She knows that the number of possible handshakes within a group of n people is given by the equation N=1/2(n^2-n). Everyone at a party shook hands. There were 253 handshakes in all. How many people ...
April 30, 2014

Algebra
\$5400 is invested, part of it at 10%, and part of it at6%. For a certain year, the total yield is \$444.00. How much was invested at each rate?
April 30, 2014

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