Thursday
July 24, 2014

Posts by Lisa


Total # Posts: 2,967

Chemistry
1.278 mL of water at 10°C was placed in a 3.0 L container that was sealed and evacuated. Then, 3440 J of heat was added to the water. Determine the pressure inside the container after heating. (Assume all of the heat goes into the water.) d (H2O(s)) 1.00 g/cm3 Csp(H2O(s)) ...

Psychology
?? plz

Psychology
"It all happened for the best," "I would never have left that dreadful job if they had not laid me off," and "Yes, I miss mom's home cooking, but I am going to school and building my future." These are examples of: (Points: 5) avoidant coping....

chemistry
no its Charles' Law

chemistry
A high-altitude balloon contains 97.5 L of helium gas at 95.8 kPa. What is the volume when the balloon rises to an altitude where the pressure is only 21.5 kPa? (Assume that the temperature remains constant.)

geometry
A right triangle because 6^2 + 8^2 = 100 and the square root of 100 is 10 :)

Calculus
find the inflection points of x^4+5x^3-9x^2+6

chemistry
It's supposed to be 105 mL of H2O. SH of water: 4.18 J/g deg C SH of steel: 0.452 J/g deg C

3rd grade math
Ramon weighs 46 kilograms. Trentweighs 37,000 grams. Who weighs more<

Chemistry
How many moles are there in 80.0g of C2H5Cl? leave answer in significant figures. please help and explain how to get the answer.

Psychology
I thinks its A

Psychology
Evaluations of a particular belief, person, object, or idea describe a person’s: (Points: 5) attitudes. motivation. predispositions. biases. was thinking D im not sure can someone help please?

Calculus
Find the tangent approximation for sqrt(5+x) near 3

Psychology
thank you very much

Psychology
Carl Jung’s idea of the collective unconscious states that we share: (Points: 5) inherited universal ideas, wishes, and memories. common learning experiences in childhood or infancy. tendencies to sacrifice ourselves individually for the group. ideas that arise from, and ...

accounting
a mutual fund has total assets of $57000000 and liabilities of $ 8550000. if 15960000 shares are outstanding, what is the net asset value of the fund?

Calculus
Find the slope of the tangent line to the ellipse (x^2)/4 + (y^2)/9 = 1 at the point (x,y)

Calc
find the slope of the tangent to the curve: y^2=x^3/xy

Psychology
ok thanks

Psychology
can i get some help please?

Psychology
"I just can't make myself study ahead for a test. I work better under pressure. Perhaps it is the fear associated with waiting until the last minute that gets me going." This approach to motivation is best explained by: (Points: 5) incentive approaches. drive-red...

maths
Michelle is making a scale drawing of a building. The scale for the drawing is 1 inch = 6 feet. The height of the building in the drawing is 7 1/4 inches. Determine the height of the actual building.

Math
Joe has a collection of nickels and dimes that is worth $6.05 if the number of dimes was double and the number of nickels was decreased by 10 the value of the coins would be $9.85 how many nickels and dimes does he have?

algebra
Solve using qaudractic formula.Then use a calculator to approximate to three decimal places, the solution as rational numbers. X^2-4x+1=0

algebra
Solve using qaudractic formula.Then use a calculator to approximate to three decimal places, the onlution as rational numbers. X^2-4x+1=0

Physics
You are the design engineer in charge of the crashworthiness of new automobile models. Cars are tested by smashing them into fixed, massive barriers at 56 km/h (35mph ). A new model of mass 1900 kg takes 0.15 s from the time of impact until it is brought to rest. 1. Calculate ...

A U
Answers: 1:4 2:4 3:4 4:2 5:1 6:3 7:4 8:4 9:1 10:4 11:3 12:1 13:2 14:4 15:3 16:2 17:3 18:3 19:4 20:3 21:1 22:2 23:2 24:3 25:2

A U
<11{1[4(17)17]}> Mrs. Orlof teaches two history classes, one in the morning and one in the afternoon. Yesterday she gave the same test to both classes. Anyone who failed the test must take a retest. Since a greater percentage of students who took the morning test failed ...

algebra
completetly factors the followin expression 4a^2-12ab+9b^2

statistics
It is well known that the heights of individual American men are normally distributed with mean 70 inches and standard deviation 2.8 inches. The Central Limit Theorem states that if n men are randomly chosen, then their average height will also be normally distributed with mea...

chem
which of the following is insoluble (1)calcium chloride (2)ammonium phosphate (3)barium sulfate (4)potassium chromate

Science
in a true solution, the dissolved particles (1)are visible to the eye (2)will settle out on standing (3)are always solids (4)cannot be removed by filtration

Math
The following is a list of 11 measurements: -2,82,87,-1,-51,-2,53,87,-20,32,35 Suppose that these 11 measurements are respectively labeled . (Thus, is labeled , is labeled , and so on.) Round your answer to at least two decimal places.

pre-algebra-is my answer right
Today only, a desk is being sold at a 27% discount. The sale price is $219.00 . What was the price yesterday? Is it $300.00

Thanks
Thank You

pre-algebra-is my answer right
Graph -3x+4 My points are at (0,4) and (1,1)

statisics
A man rolls an ordinary die 6 times. What is the probability that he gets at least 5 threes? Round your answer to four decimal places.

statisics
I got 0.0001500

statisics
A man rolls an ordinary die 6 times. What is the probability that he gets at least 5 threes? Round your answer to four decimal places.

Algebra
Divide: (-8y^7x+15y^7x^6)/(-2y^2x^5) I got y^5(-8+15x^5)/-2x^4 It won't let me add parens. in the answer any suggestions. It does say simplify your answer as much as possible.

intermediate algebra
I got -y^5(15x^5-18)/2x^4 Is that right?

intermediate algebra
Divide: (-8y^7x+15y^7x^6)/(-2y^2x^5)

intermediate algebra
I got 20sqrt(2)-6sqrt(5)-2sqrt(10)+3

intermediate algebra
Multiply (2sqrt5 -1)(2sqrt10 -3)

Algebra
Find the slope of points (-2,2) and (2,1)

Algebra
thanks for the clarification I forgot to bring the 4 out as a 2

Algebra
Rewrite the following in simplified radical form. (sqrt24w^8) I got 4w^2sqrt6w is that right?

Algebra- is my answer right
I think it has to be written as m<= 80

Chemistry
what is the percent by mass of oxygen in propanal, CH3CH2CHO? the answer is 27.6 %. but i need to know why, please help !

algebra
list the terms, coeffcients, and degree of the following polynomial:x^4+6x^3-x+3/4

algebra
state the degree of the following polynomial : 2x^3y+7xy-9y

algebra
Bob's Barber shop estimates their gross revenue for the second qaurter to be given by the polynomial 9x^3+4x^2-6x+9. The shop estimates their costs for that quarter to be given by 7x^2+2x+1. For the second qauter,find and simplify a polynomial that will represent their profit

math
prime factorization of 980

math
5/7- 1/2 (1/3 + 3/7)

algebra 1a
Can you show me the step by step to solve -3(4y-2)<30?

algebra
y+x=-4

mat/116
solve by elimination method. 7r-2s=61 2r+7s=25

Writing EASY BRAINSTORMING
i want to known how to write it.

7th Math
Loises rate is 5 worfs per min sloer than coreys rate?

7th Math
If Loiuse can type 70 words in 2 minutes and Corey can type 120 words in 3 minutes, which statement is true?? Loises rate is 50 words per minutes slower than coreys rate or Louise rate is 5 words per minutes slower than coreys rate

phys
An airplane must reach a speed of 185 mi/h to take off. If the runway is 500 m long, what is the minimum value of the acceleration that will allow the airplane to take off successfully?

math
i mean 33/240.9

math
33 / 240.90

math
15/8 as a mixed number

algebra
Suzies flower shop estimates that supplies cost for one month will be given by the polynomial 3x^2+7x-3. She estimates the utilities costs for one month is given by 5x+2 Find and simplify an expression that would estimate suzie's total cost for one month.

Math
Solving First degree equations. 0.2x-0.3=0.1x+5 I am having a hard time entering this into my TI-84

math
simplify 4/5 - 1/2 (1/3 +3/8)

math
simplify 5/8 / 1/4 * 9/2

math
simplify 1/8 -(1/8)2 + (1/8)3

math
3 16/72+5 9/72= 8/25/72

math
8 25/72

math
Do I have to find the lcd first

math
find the average of 3 2/9 and 5 1/8 simplify and type a mixed number

math
13 1/48- 2 1/12+ 3 1/3 =13 1/48 - 2 1/48 =13 1/48 - 2 4/48 =12 49/48 - 2 4/48 =10 45/48 10 45/48 +3 1/3 10 45/48 + 3 16/48 =13 61/48

math
simplify and write answer as a mixed number 13 1/48 - 2 1/2 + 3 1/3

math
the second one with out the parentheses around it

math
3/2 / 4/5 + 1/2 * 1/2 Simplify

math
find the average 1/3 ,3/8 ,1/24

math
18/8

math
find the average 1/3 ,3/8 ,1/24

math
what is 164/24 as a mixed number

math
find the average 1/3 ,3/8 ,1/24

math
find the average 6 1/7 and 7 3/8

math
simplify 3/2 / 7/10 /5/2

math
69.5

Psychology
hello any opinions?

Psychology
help please?

Psychology
Information which comes to a neuron must arrive through its: (Points: 5) axons. glial cells. prefrontal area. dendrites its either the axons or dendrites im not sure any help please..its confusing

chemistry - grade 9
calculate the mass carbon monoxide, CO, that was needed to produce 78g of methanol, CH3OH, by the following reaction: 2H2 + CO -> CH3OH.

chemistry
sorry, typed incorrectly...will repost.

chemistry
calculate the mass carbon monoxide, CO, that was needed to produce 78g of methanol, CH3OH, by the following reaction: 2H2 + CO - CH3OH.

algebra
A dehydrated patient needs a 7.9% saline IV. Unfortunately, the hospital only has bags of 3% and 10% saline solutions. How many liters of each of these solutions should be mixed together to yield 3 liters of the desired concentration?

algebra
A dehydrated patient needs a 7.9% saline IV. Unfortunately, the hospital only has bags of 3% and 10% saline solutions. How many liters of each of these solutions should be mixed together to yield 3 liters of the desired concentration?

algebra
A dehydrated patient needs a 7.9% saline IV. Unfortunately, the hospital only has bags of 3% and 10% saline solutions. How many liters of each of these solutions should be mixed together to yield 3 liters of the desired concentration?

Chemistry
In a 100g sample of water, determine the amount of weight that is attributed to Hydrogen and to Oxygen. i found the mass ratio which is 2:16 & then reduced its 1:8. then i set up my equation. 1x+8x=100g 9x=100g x=11.11111111 or 100/9 then i have to substitute. 1(100/9)= 11.111...

alegbra
solve for, where u is a real number sqrt 9u - 10 = sqrt 5u + 16

Chemistry
In a 100g sample of water, determine the amount of weight that is attributed to Hydrogen and to Oxygen. i found the mass ratio which is 2:16 & then reduced its 1:8. then i set up my equation. 1x+8x=100g 9x=100g x=11.11111111 or 100/9 then i have to substitute. 1(100/9)= 11.111...

Psychology
ANY HELP PLEASE????

Psychology
In her lecture concerning scientific method, Dr. Smith insisted that each of the steps must be used in order to arrive at a scientific finding. She included directions to __________ in her list of necessary components. (Points: 5) form a question and design a procedure for tes...

Psychology
THANK YOU VVERY MUCH

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