Tuesday
December 6, 2016

Posts by dana

Total # Posts: 321

Science
What volume of a 2.00 M HCL solution can be prepared by diluting 0.350L of 14.0 M HCl solution?
December 5, 2016

Chemistry
If a 30.pL tank of laughing gas contains 2.74 moles of N2O at 25 degrees C, what is the pressure (atm) in the tank?
December 5, 2016

Maths
A blue train is 500m long and is travelling at 58km/h. A yellow train is 400m long and is travelling at 32km/h. The trains are travelling towards each other. Ooriginally, the trains are 900km apart. A) how long will it take for the 2 trains to reach each other? B) how many ...
October 4, 2016

Maths
Sally and ben are running around a 400m circular track. Sally can run at 8m/s while ban can run at 6m/s. They start at the same time and run in the same direction. How far are they apart after 5 minutes?
October 4, 2016

Physics
You're driving parallel to train tracks at 52.0 km/h when a train passes you, going a steady 91.0 km/h. A track crossing is up ahead, so you begin to speed up at 8.00 m/s2. How far do you drive before you pass the train?
September 21, 2016

science
which of the following cellular organelles is responsible for realising the energy contained in food
April 27, 2016

ph science
a flight attendant pulls a wheeled suitcase, applying a 64-N force at a 35 degree angle to horizontal. how much work does she do in pulling the suitcase 45m f=d/t=64+35=99/2x45=2227.5
April 16, 2016

Fundamental Chemistry
Given the balanced reaction below; write out the balanced ionic equation and the balanced net ionic equation. Include phase labels and charges where appropriate. Cu(s) + Zn(NO3)2 (aq) → Cu(NO3)2 (aq) + Zn(s)
April 13, 2016

¿Puedo hablar con esta persona llamada 'Reed', por favor?
March 29, 2016

So what's the answer then, Steve?
March 29, 2016

Maths
A plane is flying at an altitude of 880 m. Sarah is standing on the ground and she observes the angle of elevation to the plane as 67'40'. Twenty-five seconds later the angle of elevation had changed to 24'30'. (a) How far has the plane flown in that time? (b) ...
February 5, 2016

english
1. It's raining cats and dogs. 2. Hit the sack. 3. You're bouncing off the walls. What is the inferential meaning of all the 3 idioms?
November 2, 2015

Finite
One coin is fair and one is weighted so that Pr[H]=211. You randomly select one of the two coins, and flip it 5 times, noting the result of each flip. What is the expected number of heads?
October 13, 2015

maths
At the party Jade ate less than four jelly beans. Nicole ate twice as many jelly beans as Jade. Kahlee had twice as many as Nicole. Chris had two more than kahlee. Chris ate ten jelly beans. How many jelly beans were eaten at the party?
September 18, 2015

maths
Four girls each caught a fish while at the beach. Teri's was double the size of Jane's. Jane's fish was shorter than Lynn's by nine centimetres. Lynn's was 18 centimetres longer than Reina's who caught a fish 30 centimetres long. How long were Teri'...
September 17, 2015

Chem
List several anions, by formula, that contribute to the salinity of a water sample. Is this the answer? : chloride sulfate sodium , Na bicarbonate carbonate bromide fluoride What does it mean by formula? thanks so much !
September 9, 2015

pre algebra
1/4 my answer is 0.25 am i correct?
August 31, 2015

pre algebra
o.12 my answer is x=3/25 an i correct?
August 31, 2015

pre algebra
is 0 a whole number, integer, rational, and real number?
August 31, 2015

pre algebra
is 0.75 a rational numbre?
August 31, 2015

pre algebra
1/3 my answer is 0.333... am i correct?
August 31, 2015

math
1/4 my answer is 0.25 am i correct?
August 31, 2015

Math
Find the probability for the experiment of tossing a six-sided die twice. Put the answer in a/b form. P(the sum is odd or prime)
April 28, 2015

Math Check
Hi! Can someone check my answers for this question? Thanks!! Directions: Look for the probability for an experiment that deals with the drawing of two marbles (without replacement) from a bag containing one green, two yellow, and three red marbles. Put the final answer in a/b ...
April 28, 2015

Math Check
Hi! Can someone check my answers for this question? Thanks!! Directions: Look for the probability for an experiment that deals with the drawing of two marbles (without replacement) from a bag containing one green, two yellow, and three red marbles. Put the final answer in a/b ...
April 28, 2015

math
The arrow is spun several times until it stops at a number 4. Find the probability that this happens on the third spin.
March 21, 2015

math
which sets of ordered pairs represents a linear relationship? if the relationship is linear, calculate the rate of change of the dependent variable. 1. (-2,4),(-1,1),(0,0),(1,1),(2,4),(3,9) 2. (5,13),(6,15),(7,17),(8,19),(9,21),(10,23) 3. (1,-14),(3,-5),(6,4),(9,13),(12,22),(...
March 4, 2015

Math
provide a table of six values that represent a linear relation? 6 values mean that 6 number on each side x and y value?
March 3, 2015

statistics
if you earned a 17 on a quiz what would your score indicate the best performance a. x=15 and s=2.4 b. x=15 and s=2.1 c. x=17 and s=2.4 d. x=17 and s=2.1
February 15, 2015

statistics
A teacher is interested in finding out how many hours a day a college student at Monroe Community College exercises. The teacher randomly chooses 1000 college students and asks them, “How many hours do you exercise?” Explain whether there could be any bias in the ...
February 15, 2015

math
only in the instance of ab=0 can one assume a is zero, or b is zero, or both are zero.
February 13, 2015

Math
I am a parent and need help with this problem so I can show my daughter how to complete. A recipe calls for 8 cups of flour. The amount of flour is 10 cups less than twice the amount of milk. Write and solve an equation to find the amount of milk in the recipe. I really only ...
February 1, 2015

math
Thank you so much. Could you take a crack at the other question I posted about the \$5800 car loan?
January 22, 2015

math
Lin borrowed \$950 for a new laptop. She will pay \$25.80 each month for the next 48 months. Find the simple interest rate for her loan. (Rounded to the nearest 10th of a percent.)
January 22, 2015

math
I think that got it for us. Thank you so much!!
January 22, 2015

math
TJ had a car loan for \$5800. Over the course of the loan, he paid a total of \$1508 in interest at a rate of 6.5%. Over how many months did TJ pay off the car loan?
January 22, 2015

Math
Is there any you can help us with either of the other 2 problems I posted about interest?
January 22, 2015

Math
Ms. Sue - Thank you so much! I'm a 3rd grade teacher/mom who has NO CLUE what to do in 7th grade pre-algebra! My son says thank you for verifying his answer and thought process.
January 22, 2015

Math
Gabe placed \$2000 in a certificate of deposit. He earned \$10 in interest each month for the next 36 months. Find the annual simple interest rate for his certificate of deposit.
January 22, 2015

chemistry
Gasoline sold in Ontario must contain at least 5.00% v/v ethanol? How much gasoline contains 1.50 L of ethanol? my answer is 22.5 ml is this correct
December 16, 2014

Chemistry (Solutions)
December 16, 2014

psychology
Given the changes in sex-offender laws, the emphasis of concern appears to be swinging toward: A) protecting children. B) sympathizing with sex offenders. C) white Americans. D) states' rights.
December 15, 2014

Calculus
Hi! I need help with this problem: For 0(smaller or equal to) t (smaller or equal to) 9, a particle moves along the x-axis. The velocity of the particle is given by v(t)= (sin pi/4 t). The particle is at position x= -4 when t=0. a) For 0 (smaller or equal to) t (smaller or ...
December 11, 2014

math
Jane had 16m of ribbon. She gave 3 2/7of it to Linda and 4 1/3 to Sarah. How much ribbon was left?
December 9, 2014

Math
θ equals the angle in Quadrant II so that cot θ= -3. Find the values for sin θ, cos θ, and tan θ.
December 4, 2014

Pleaaaaaase help with differential graph question
Suppose further that the population’s rate of change is governed by the differential equation dP/dt = f(P) where f (P) is the function graphed. For which values of the population P does the population increase? (b) For which values of the population P does the population ...
December 1, 2014

english 4
Change the italicized clause to a nominative absolute. Rewrite the entire sentence in the box below. As the hurricane season was over, people returned to the cottages on the beach. Change the italicized clause to a nominative absolute. Rewrite the entire sentence in the box ...
November 9, 2014

pre-algebra
The number of cells in a lab sample triples every 4 hours. Write an expression to represent the number of cells after 24 hours. I think it might be x cubed times 6
November 5, 2014

Geometry
A carpenter is building a staircase using his knowledge of right angles. The steps have a horizontal landing and a vertical rise causing each step to be a right triangle cut out. Depending on the purpose, steps may be adjusted by the angle of elevation which determines the ...
October 30, 2014

Math
240 spheres
October 19, 2014

arithmetic
Jodi is cutting out pieces of paper that measure 8.5 inches by 11 inches from a larger sheet of paper that has an area of 1000 square inches. What is the area of each piece of paper that Jodi is cutting out?
October 14, 2014

World History Answer Check (Ms. Sue)
what group do both authors agree would make poor rulers and why do they believe thiswhat group do both authors agree would make poor rulers and why do they believe this
September 14, 2014

math
9x27+2×31-28=n
September 10, 2014

Algebra, math,
A helicopter can fly 120 mph in still air. When flying to a town 700 miles away and returning the helicopter has to fly with a tailwind of x mph when going to the town and with a head wind of x mph when returning. If the return flight takes 2 hours more than the flight to the ...
May 20, 2014

Homework helpline?
Is there a homework helpline for college level I can call and ask homework questions through the phone? I know there is one that is available for elementary school and middle school, and it would seem a little ludicrous for one to be available for this level, but are there any...
April 28, 2014

television is an attractive advertising medium because it A. Offers mass coverage and flexibility B. is relatively expensive C. offers rapidly growing network audience D. provides instant feedback which can be used to measure effectiveness
March 20, 2014

us history
looks like you only got 9 wrong. its many gains were made in the area of women's education.
March 19, 2014

math
Three boys are sharing a cake. Joey ate 2/5 of the cake, Billy ate 1/3 of it, and Matt ate the remaining piece. What is the ratio of Joey's piece to Billy's piece to Matt's piece?
March 14, 2014

algebra
Find the equation of the line parallel to 4x=5y=7 and passing through (3,2) leave answer in y=mx+b
December 11, 2013

physics
Change = coefficient*Length*Difference in Temp (2.5*10^-6)*170*(-12-35) = -.019975 meters -.0199m = -1.99cm
December 6, 2013

POL 201
all branches are equal. efficiency can be obtained through the division of labor. one branch can prevent another branch from tyrannizing the majority. the Framers had a negative view of politicians.
November 17, 2013

POL 201
Separation of powers entails three distinct branches of government so that
November 17, 2013

Microeconomics
Assume that you own a lake house. Unfortunately your job will require that you spend the summer on the road and you won’t be able to enjoy it. You decide that you will rent it out for the summer while you are working. The mortgage payment on the lake house is \$1000 per ...
October 22, 2013

Telecommunications
He did this problem in the "A Problem" video just with different numbers. ;)
October 18, 2013

English 1
For #1 I put this but i don't know if it's right. In the very beginning of the story Capote begins placing the reader in the kitchen of days long gone now. The reader has an image of a large farm house with a stove dominating the kitchen. Since kitchens in this era do ...
September 24, 2013

English 1
It is a story. These were the questions. I don't know how it relates to me.
September 24, 2013

English 1
In the story A Christmas Memory. 1. In at least one paragraph, describe what you think the message is the author is trying to convey in the story. What specific details from the story make you believe this? 2. In at least a few sentences, describe how this message relates to ...
September 24, 2013

American U.S.History
Directions: 1. Pick a grievance from the Declaration of Independence. You need to focus on ONE grievance. 2. In the online text box, answer the following questions in a couple of paragraphs. 1. Identify which grievance is the focus of your argument. 2. What natural right was ...
September 24, 2013

Physical Science
a rocket moves through outer space at 11,000 m/s. At this rate, how much time would be required to travel the distance from Earth to the Moon, which is 381,000 km?
September 15, 2013

macroeconomics
Which of the problems in the construction of the CPI might be illustrated by each of the following situations?   Substitution Bias, Introduction of New Goods, Unmeasured Quality Change 1. The invention of the iPod 2. The introduction of air bags in cars 3. Increased ...
September 11, 2013

math
Natureland Garden Center buys lawn mowers that list for \$679.95 less a 30% trade discount. What is the dollar amount of the trade discount?
August 22, 2013

math
What is the present value of \$73,000 in 11 years if the interest rate is 8% compounded semiannually?
July 6, 2013

Chemistry
If I have 10 silver coins and they weigh 55 grams and displace water from 25 mL to 26 mL, what is the density? What is the specific gravity?
June 29, 2013

Algebra
identify the solution(s) of the system of the equations 9x+2y=6 and 8x-2y=8
June 4, 2013

College Algrebra Math 133 unti 1 IP 1
Suppose the width of a rectangle is 5 inches shorter than the length and that the perimeter of the rectangle is 80 inches. The formula for the perimeter of a rectangle is P=2L + 2W. Set up an equation for the perimeter involving only the L the length of the rectancle. And ...
May 11, 2013

Calculus
Find a formula for the fourth degree polynomial p(x) whose graph is symmetric about the y-axis (meaning it has no odd powers of x), and which has a y-intercept of 10, and global maxima at (3,253) and (−3,253).
April 7, 2013

Algebra
Find the account of simple interest earned if you invest \$9000 at 0.04% interest for 20 years. Then find the account balance.
February 3, 2013

math
If "today is Monday" is true and "It is May 5th is false, which of the following is false? 1 - Today is Monday and it is not May 5th. 2 - If today is Monday, then it is May 5th. 3 - Today is not Monday only if it is May 5th. 4. Today is not Monday or it is May ...
January 12, 2013

math
the measures of the angles of a triangle are represented by 2x+30, 5x+10 and 7x the triangle is
January 11, 2013

farmingdale
in rhombus abcd the measure in inches of ab is 5x+7 and dc is 2x+25 find the number of inches in the length of dc
January 11, 2013

ELA
In the miracle worker who are the most important characters from greatest to least. with descriptions next to the names please.
December 10, 2012

fractions
If you have eight cookies and you give one fourth away, how many cookies are left?
December 7, 2012

mathematics
calculate the following fractions 1/3+ 2/3+ 5/3 what is the answer AND show how you get the answer
October 25, 2012

math
caculate the following fractions 1/3+ 2/3+ 5/3 what is the answer to these fractions and show houw you get the answer. please.
October 25, 2012

Zion Chapel
explain how to find 40x50 usine mental math?
October 24, 2012

trig
I have this same question. It depends on how the question is read. Is the plane at an unknown hight 12,000 ft from the cliff? Or is the plane an unknown distance from the cliff flying at 12,000 feet? If the second then the cliff is 28,043.1 ft high. If the first AND we assume ...
October 15, 2012

Math
Al and Harpreet are racing to Wing Stop to get the last batch of fries made for lunch. Al participates in cross country and can cover (write in value) per minute. Harpreet likes to watch TV and play video games. She is out of shape and can only cover 3 units per minute. If ...
October 6, 2012

geometry
Al and Harpreet are racing to Wing Stop to get the last batch of fries made for lunch. Al participates in cross country and can cover (write in value) per minute. Harpreet likes to watch TV and play video games. She is out of shape and can only cover 3 units per minute. If ...
October 6, 2012

math
5a - a - 2a = 18 a = ?
September 26, 2012

math
6d - 3d + 2d = 35 d = ?
September 26, 2012

financial planning
corp had earnings before taxes of \$400,000 and sales of \$2,000,000. If it is in the 40% tax bracket its after tax profit margin is?
July 21, 2012

math
A flagpole stands at a right angle to the horizontal at the bottom of a slope. The slope has an incline of 8° with the horizontal. The flagpole casts a 20 meter long shadow up the slope. The angle of elevation of the sun is 17°. Determine the height of the flagpole.
July 21, 2012

would Johnson and Johnson work or pocter and Gamble work
April 16, 2012

analalyzes the organization basic legal ,social and ecomomic environments
April 16, 2012

Assignment Type: Individual Project Deliverable Length: 4-5 body pages, 1 PERT chart, 1 Gantt chart Points Possible: 185 Due Date: 4/22/2012 11:59:59 PM CT Using your current work organization (or an organization of interest) as the subject matter, research the elements of ...
April 16, 2012

Chem
How many sodium ions are present in 825 ml of 0.825 M Na2SO4?
April 3, 2012

Math
adam has 2 yards of fabric to make a shirt. He needs 1 foot of fabric for each arm and 3 feet of fabric for the rest of the shirt. Does he need an estimate or exact answer to decide if he has enough fabric?
March 11, 2012

probability
use 3 colors; one color has half probability, every segment is next to a different color; in a circle divided in 8 equal segments
February 9, 2012

Math
1) Given the universal set U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} and sets A = {2, 3, 4, 6}, B = {5, 6, 7, 8, 10}, C = {6, 8, 10}, and D = {1, 2, 7, 9}, answering the following: 1- a) What is A ∪ C? 2- b) What is A ∩ D? 3- c) What is A'∩ (B ∪ C)? 4- d...
January 30, 2012

Geometry
The measures of 6 of the interior angles of a heptagon are: 120°, 150°, 135°, 170°, 90°, and 125°. What is the measure of the largest exterior angle? 90° 80° 75° 85°
January 23, 2012

1. Pages:
2. 1
3. 2
4. 3
5. 4
6. Next>>