Tuesday

July 22, 2014

July 22, 2014

Total # Posts: 91

**Chemistry**

I'm sorry I confused the questions its What is the final concentration if 64.36 grams of HCl (MW: 36.46) is dissolved in 8.54 ml of solution

**Chemistry**

What is the final concentration if 27.08 (MW: 36.46) dissolved in 55.51 ml?

**Math**

50

**writing**

On Dying is a lesson on how to live Not sure if this right, but two for you to look at. My Thesis statement. Please check. Thanks again! 1. Although death awaits us all, there is a lesson to all before we die. 2.This is a part of life that everyone becomes aware of sooner or ...

**writing**

although death awaits us all, there is a lesson before dying.

**writing**

Hello, could someone please look over my English/writing assignment. Any input will help. Not finish still working on end. THANKS A Gift of dying is a Lesson in Living “The truth is once you learn how to die, you learn how to live.” (Albom, 1997, pg. 82). The poem &#...

**grammar**

Louis was a scoundrel __________ everyone distrusted.

**Spanish**

enfermera

**chemistry**

What will be the total mass of a 73.3 gram flask and its contents if it contains 20.1 mL of concentrated sulfuric acid with density 1.84 gram per mL?

**math**

what two number are exactly 9 unit segment from 2 on a number line.

**Statistics**

136

**math**

i figured it out.

**math**

f(x) = 4x^2 − x + 3, find f(a+h) I have 4a^2+8ah+4h^2-a-h+3 Is that right so far? and what do I do after that?

**college chemistry**

Hydrogen gas is produced when zinc reacts with sulfuric acid: Zn(s)+H_2SO_4(aq)---ZnSO_4(aq)+H_2(g) If 160 mL of wet H_2 is collected over water at 24 Celsius and a barometric pressure of 739 torr, how many grams of Zn have been consumed? (The vapor pressure of water is 22.38 ...

**physics**

-4.00=-4.90m/s^2(t)^2 -4.00/-4.90=t^2

**Physics**

The coefficient of static friction between the 3.00 -kg crate and the 35 degree incline is .300. What minimum force must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline.

**physics**

An object is acted by 3 coplanar forces:30 newton to the north, 20 in the direction S20degrees E and 25 newton in a direction W20degrees S.Find the resultant

**science**

A ship sailed 15 km north, then 20km east followed by 10km south. Find its displacement from its starting point

**writing **

Bill should instruct or snd out a memo informing the staff about what the manager's said

**chemistry**

How many formula units is a 125.8g of Nacl

**Finance**

Assume AirJet Best Parts has also a preferred stock issue. The most recent dividend per share paid on the stock was also $1.50, the same as the common stock. Which one would you think has a higher price, the preferred stock or the current stock?

**Finance**

What coupon rate should AirJet Best Parts set on its new bonds to sell them at par value?

**physiology**

what is the relatioship between electrical activity and muscle force produced ?

**english**

c,c,b,a,a,c,a,b,b,b,a,a,d,b,b,c,c,c,b,a,b,a,d,a,c,b,c,d,a,c

**Maths**

Hi, I have to produce a sketch of a line that passes through the points (4,3) and (10,0), i have already worked its gradient out to be -0.5 and its y - intercepts as 5. For some reason i am having a mental block on the next bit! I need to add the line y = 6 to the sketch and t...

**CHEM**

Calcium nitrate will react with ammonium chloride at slightly elevated temperatures, as represented in the equation Ca(NO3)2(s) + 2NH4Cl(s) ---> 2N2O(g) + CaCl2(s) + 4H2O(g) What is the maximum volume of N2O at STP that could be produced using a 6.80-mol sample of each reac...

**english**

c,c,b,a,a,c,a,b,b,b,a,a,d,b,b,c,c,b,a,b,a,d,a,c.b,c,d,a,c

**english**

1 - c 2 - c 3 - b 4 - a 5 - a 6 - c 7 - a 8 - b 9 - b 10- b 11- a 12- a 13- d 14- b 15- b 16- c 17- c 18- b 19- a 20- b 21- a 22- d 23- a 24- c 25- b 26- c 27- d 28- a 30- c

**math **

suppose you add 8 to a number, then multiply by -4, and then subtract 5. IF the result is 10 what is the starting number?

**math**

before the year end sale one used car was priced at 8,925. During the sale the car was marked down to 7,586.25. By what percent was the car marked down?

**math **

suppose you invest $525 for five years at an annual interest rate of 4.2%. What is your balance at the end of five years rounded to the nearest cent?

**6th grade**

the answer is 6.5 but, i think the diagram is showing your work. hope this helps :)

**College Physics**

A simple circuit is made of a power source, a rheostat and an ohmic resistor. The potential difference across the resistor is initially 5.0 ± 0.1 V. A good lab student measures the current across the resistor to be 1.65 ± 5 mA. a)If the student increases the volt...

**College Physics**

Common light bulbs have a mental filament made of tungsten and when a current passes through it, it radiates visible light, as well as heat. If initially the filament's resistance is 2.45 Ω (6%) at 20 degrees Celsius and the temperature coefficient of resistivity ^...

**home economics**

what are fats that come from plants that are liquid at room tempurature

**homework**

why are auckland wellington dunedin and christchurch mian centers of new zealand

**math**

Art Conn bought a used car for $600 and sold it to Hardy Pyle for $800. He later bought it back for $800 and resold it for $1000. Did Art make a profit, if so how much? Is the correct answer yes $400?

**math**

Thank You.

**math**

If a teenager and a half can eat a pizza and a half in a day and a half, how many pizzas can twelve teenagers eat in three days? Is the answer 36?

**math**

My name is Two Twenty. I am in search of my friend. Find the sum of my proper divisors to bring my journey to an end. What is my friend's name?

**math**

Arrange the digits 5, 6, 7, 8, and 9 in the blanks to maximize the product. ___ ____ ____ x ____ ____

**math**

Determine the value of A if the ten digit number 512A51739A is divisible by 7, 11 and 13. Is the correct answer 6?

**math**

It's forty!

**math**

That is true. I totally forgot.

**math**

Only one number is spelled in the English language with its letters in alphabetical order. What is the number? Is the correct answer eight?

**m**

Name the triple (a, b, c) of positive integres exist such that a, b, and c are prime and a squared and b squared = c?

**math**

thank you.

**math**

How many minutes are needed to make a 30 mile trip at an average speed of 20 miles per hour?

**math**

The average, that is, the arithmetic mean, age of a group of doctors and lawyers is 40. If the average age of the doctors is 35 and the average age of the lawyers is 50, then what is the ratio of the number of doctors to the number of lawyers?

**math**

A group of mathematics teachers went to a restaurant. They agreed to split the bill equally. When the bill arrived, two of them discovered that they had forgotten their money. The others in the group agreed to make up the difference by paying an extra $1.30 each. If the total ...

**math**

Find a, given that 5 is the remainder when x to the fourth power - 2x cubed + ax squared - x - 1 is divided by x + 2?

**math**

Mary Fairfax Somervilee was a nineteenth century mathematician in England. To discover the year in which she was awarded a silver medal for her solution to the Diophantine equation, find the value of the following expression: 3(1 + 3 + 5 + ... + 51) - 221

**math**

4. Aristotle used deductive logic, in particular, syllogism. Solve for G to find in which century B.C. he was born. A = D B = 4 E = 3 D = E and G = A + 1

**math**

1 1 1 1 2 1 1 3 3 1

**math**

In 1654 Blaise Pascal invented Pascal's triangle,for which the first four rows are given: 1 1 1 1 2 1 1 3 3 1 1 4 6 4 1 1 5 10 10 5 1 --1 6 15 20 15 6 1 --1 7 21 35 35 21 7 1 Determine the ratio of the sums of the terms of the seventh and eighth rows. Is this answer correc...

**math**

If the square root of the square root of the square root of a number is 2, what is the number? I got 256. Is that correct?

**math**

Fifty umbrellas were sold on a rainy April day. Five times as many red as blue were sold, three times as many green as blue, nine more black than blue, and seven fewer purple than black. Five umbrellas were purple and six were white. How many of each color were sold?

**math**

If a is 50% larger than c and b is 25% larger than c, then a is what percent larger than b? (a) 20% (b) 25% (c) 50% (d) 100% (e) 200%

**math**

All the even numbers from 2 to 98 inclusive, except those ending in 0, are multiplied together. What is the rightmost digit, that is, the units digit of the product? (a) 0 (b) 2 (c) 4 (d) 6 (e) 8

**math**

The positive integer 4 can be represented as a sum of 1's or 2's in five ways, such as 1 + 2 + 1 and 1 + 1 + 2. Show all the ways that the positive integer 5 can be represented as a sum of 1's or 2's.

**math**

What is the sum of all possible digits that could fill in the blank in 47_021 so that the resulting five digit number is divisible by 3?

**math**

What is the sum of all two digit positive integers whose squares end with the digits 01?

**math**

Vanna Red sells the vowels a, e, i, o, and u each for a different price but less than $250. Consonants are free. You must pay separately for each occurrence of a vowel in a word. Audacious sells for $260, equivocations for $340, inimitable for $225, onomatopoeia for $435, and ...

**math**

What is the least positive integer that has exactly thirteen factors?

**algebra**

8/w-9/w=-1/2 -1/w=-1/2 w=2

**Calculus**

What is the tens digit of 0! + 1! + 2! + 3! + ... + 2000!?

**Calculus**

On Dick's birthday, his brother Harry is seventeen years younger than three times Dick's age. The boys father, Tom, is twelve years older than twice Harry's age. If Dick is seven years younger than his brother, how many candles are on Dick's cake?

**Calculus**

Vanna Red sells the vowels a, e, i, o, and u each for a different price but less than $250. Consonants are free. You must pay separately for each occurrence of a vowel in a word. Audacious sells for $260, equivocations for $340, inimitable for $225, onomatopoeia for $435, and ...

**Calculus**

What is the least positive integer that has exactly thirteen factors?

**Calculus**

Your high school softball team has won ten games and lost five games. To get into the playoffs, your team must win at least 80% of the games that it plays. If your team wins all its remaining games, it makes the playoffs. What is the fewest number of games that your team could...

**Environmental Science**

Compare and contrast the decomposers wtih other consumers in terms of the matter and energy changes that they perform. Please help!

**Environmental Science**

State the two energy laws. I only found that basic types are potential and kinetic energy. Em I right or wrong? My other question How does it relate to entropy? Entropy is a measure of disorder or uncertainly about a system. Don't get it?! Help me please I'm a little s...

**Environmental Science**

In one sentence, define matter and energy. I don't how in the world em I going to define in a sentence. Please help! Thanks!

**Early Childhood Literacy**

I think 1st one is right. But i think the 2nd one should be (A). Because when have you ever heard a two year say mommy buyeded a book. Unless it was born genusis LOL :).

**Science**

5 examples of (A)Source of kinetic energy (B)Source of potential energy (C)Chemical energy

**lanuage arts**

What is a coplex, compound, and compound-complex. Sorry it was complex, compound, and compound-complex. Thank you for using the Jiskha Homework Help Forum. Try the following site: http://www.infoplease.com/cig/grammar-style/sentence-structure-fab-four.html

**language arts**

An example of a simple sentence? This is an example of a simple sentence. The sentence above has a subject (This) and one verb (is).

**health**

I've read through my book and am having trouble understanding the chapter when they talk about the following topics can someone explain it to me thanks How do lipids move through the body so they can be digested and absorbed? How are lipids stored in the body? http://au.a...

**math,help**

and then this one as well : state the dual problem for each linear programming problem. minimize w =y1+y2+4y3 subject to: y1+2y2+3y3 >=115 2y1+y2+8y3>=200 y1 +y3 >=50 with y1>=0, y2>=0, y3>=0

**math,help**

this is from another section one of the problems can someone help me. dierections: use the simplex method to solve each linear programming problem. maximize z = 12x1 +15x2 +5x3 subject to: 2x1+2x2+x3 <= 8 x1+4x2+3x3<=12 with x>=0,x2>=0,x3>0

**math,help**

also can somone explain to me these types of problems. directions are introduce slacks variables as necessary, then write the intial simplex tableau for each linear programming problem. find x1 >= 0 and x2 >= 0 such that x1+x2<=10 5x1+3x2<=75 and z=4x1+2x2 is maxim...

**math , help**

can someone show me how to solve this: directions: pivot once as indicated in each simplex tableau. Read the solution from the result. the number that is highlighted is row 2 column 3 which is the 5 the matrix is a 4 X 8 under column one it reads as: x1/x2/x3/s1/s2/s3/z 4/2/3/...

**health class**

Can someone help me with this:thanks... "Should we eliminate fats from our diets altogether and increase proteins" "What are some of the benefits that unsaturated fats and proteins provide when included in a balanced diet" This is my opinion on this: I thin...

**algebra II**

I need help solving these types of problems here is one one of them. Can somone show me how to solve them.thanks Production Requirements An electronics company produces transistors, resistors, and computer chips. Each transistor requires 3 units of copper, 1 unit of zinc, and ...

**math,algebra II**

I have to work with these types of problems dealing with matrises can someone show me how to solve them.Heres one of them: Directions: Find the values of the variables in each equation in the first matrix it looks like this a+2 3z+1 5m 4k 0 3 then theres a plus sign and the se...

**math,algebra**

What are some of the challenges one might experienced using matrix operations? The main one in my experience is typing the matrix correctly into the calculator. Computations using large matrices require a lot of CPU time. what does CPU mean

**math,algebra II**

can someone show me examples of what is a practical application of matrices or matrix operations that can be used in a real-world situation. Simple example: Coordinate transformation. An object is located at coordinates (x,y,z) in your coordinate system, what are the coordinat...

**math**

can somone help me with this one , what equations do i have to use or what do i have to to inorder to see if this is possible Lori Morgan has $16,000 invested in Disney and Intel Stock. The Disney stock currently sells for $30 a share and Intel stock for $70 a share. Her stock...

**math**

can someone write out the equations so i can solve this please. Midtown delivery service delievers packages which cost $ 2.10 per package to deliver. The fixed cost to run the delivery truck is $ 78 per day. If the company charges $4.10 per package, how many packages must be d...

**math**

can someone write out the equations so i can solve it. Please... #1 A biologist recorded 9 snakes on 21 acres in one area and 13 snakes on 47 acres in another area. Let y be the number of snakes in x acres. Write this one in a linear equation for the number of snakes. The stra...

**sci/chemistry**

when 1.87 g of gypsum(hydrated calcium sulfate) was heated to constant mass, it lost 0.39 g of water. What is the formula of gypsum? YOu know it is of the form: CaSO4.XH2O the idea here is to find x. calculate the number of moles of water in .39g. Calculate the number of moles...

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