# Posts by angela

Total # Posts: 1,680

Abbott was orphaned at the age of five. For the next fifteen years his material needs were met by his Uncle Barton. On his 13th birthday, Abbot wrote Uncle Barton and promes to pay him \$100 per mont as long as his Uncle lived. Abbott nver made any payments. Uncle Barton died ...

statistics
2. A test measuring basic math skills in adults is normally distributed, with mean = 20 and standard deviation = 7. Calculate the z score and T score for each of the following test scores: - X = 11

Chemistry
At constant volume, the heat combustion of a particular compound is -3447.0 KJ/mol. When 1.205 g of this compound (molar mass = 119.94 g/mol) was burned in a bomb calorimeter, the temperature of the calorimeter (including its contents) rose by 5.007 degrees C. What is the heat...

Chemistry
Consider the molecular level representation of a gas There are: (a picture) 6 blue dots 5 orange dots 3 green dots (i think they are the diatomic one, because it is pairs) If the partial pressure of the diatomic gas is .750, what is the total temperature? I am totally lost, ...

Statistics
Z= x-u/o So, 296-300/3 = -.77 Look at a standard normal distribution table .2794 is the value from the table. If you draw the curve, you will know that the area is to the left. So, you subtract: .5000- .2794 =.2206 is the probability. I am not sure about the second part.

Chemistry
If the heat from burning 6.000 g of C6H6 2C6H6(l) + 15O2(g) -> 12CO2(g) + 6H2O(l) + 6542 kJ is added to 5691 g of water at 21 °C, what is the final temperature of the water? Please tell me what I am doing wrong: 293,551= 5691*4.2*(Tf-21C) 293551= 23902.2Tf - 50946.2 ...

grammar
What is the simple subject in this sentence Who cares if she's in 3rd grade and I'm just in 1st.

statistics
Give and interpret the 95% confidence interval for the hours of sleep a student gets. (7,8,4,5,8,10,7,8,5,6,7,4,7,8,9,8,7,6,7,8)

Algebra
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 172 and a variance of 9. The material is considered defective if the breaking strength is less than 163 pounds. What is the probability that a single, randomly selected piece ...

Math
What is the value of n in the equation (2/3)n =(4/9)

computers
what part of a presentation slowws you to add charecter data?

math
how do you divide 1.0 divided by 0.02

math
26997.18 = PV(1.10)^10 26997.18/(1.10)^10 = PV 26997.18/2.59374 = PV 10408.59 =PV

math
(1+r)^365 =(1.07) 1+r = 1.07^1/365 1+r =1.00018538 r = 0.0018538 r = .185% daily (1+r)^12 = 1.06 1+r = (1.06)^1/12 1+r = 1.004867551 r = 0.004867551 r = .486% monthly

Math
(1+r)^12 = 1.03 1+r = (1.03)^1/12 1+r = 1.00246627 r = 0.00246627 r % = .247 % monthly

Physics
A roller-coaster car speeds down a hill past point A where R1 = 10.4 m and then rolls up a hill past point B where R2 = 15.6 m, as shown below. R1 and 2 are radii (a) The car has a speed of 21.0 m/s at point A. if the track exerts a normal force on the car of 2.05 multiplied ...

English
How can I make this sentence better for my objective on my resume. To obtain an administrative assistant position where my professional skills will be used to the fullest.

Physics
A 4.3 g dart is fired into a block of wood with a mass of 22.6 g. The wood block is initially at rest on a 1.4 m tall post. After the collision, the wood block and dart land 3.1 m from the base of the post. Find the initial speed of the dart.

Physics
A 750 N student stands in the middle of a frozen pond having a radius of 5.4 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 2.0 kg physics textbook horizontally toward the north ...

Physics
A 4.3 g dart is fired into a block of wood with a mass of 22.6 g. The wood block is initially at rest on a 1.4 m tall post. After the collision, the wood block and dart land 3.1 m from the base of the post. Find the initial speed of the dart.

texas southern university
A quantity of gas in a piston cylinder has a volume of 0.544 m3 and a pressure of 200 Pa. The piston compresses the gas to 0.126 m3 in an isothermal (constant-temperature) process. What is the final pressure of the gas? ??__Pa

texas southern university
A periodic wave has a frequency of 8.9 Hz. What is the wave period? ??__s

Physics
A railroad car with a mass of 1.86 104 kg moving at 2.80 m/s joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.40 m/s. (a) What is the speed of the three joined cars after the ...

Physics
oh nvm

Physics
are you sure the 0.138 shouldn't be .0138?? and the answer be 1.7e-6??

Physics
A 5.9 g coin sliding to the right at 27.6 cm/s makes an elastic head-on collision with a 17.7 g coin that is initially at rest. After the collision, the 5.9 g coin moves to the left at 13.8 cm/s. (a) Find the final velocity of the other coin. (b) Find the amount of kinetic ...

Physics
Thanks Elena!! CASEY, you da finest.

Physics
A 1.08 kg skateboard is coasting along the pavement at a speed of 4.60 m/s when a 1.19 kg cat drops from a tree vertically downward onto the skateboard. What is the speed of the skateboard-cat combination?

French 2
Which is an example of a superlative sentence? Answer Le français est fantastique. Le français est plus fantastique que l'anglais. Le français est la plus fantastique de tous les langues.

Physics
A 0.17 kg baseball moving at +20.80 m/s is slowed to a stop by a catcher who exerts a constant force of -376 N. How long does it take this force to stop the ball? How far does the ball travel before stopping?

statistics
random sample of n = 16 scores is selected from a normal distribution with a mean of μ = 50 and standard deviation of σ = 10. a. what is the probability that the sample mean will have a value between 45 and 55? b. what is the probability that the sample mean will ...

Physics
Those were all wrong, I don't get it.

Physics
A ball of mass 522 g starts at rest and slides down a frictionless track, as shown below. It leaves the track horizontally, striking the ground a distance x = 0.81 m from the end of the track after falling a vertical distance h2 = 1.03 m from the end of the track. (a) At what...

Physics
Thank you!!

Physics
Starting from rest, a 11.50 kg suitcase slides 3.18 m down a frictionless ramp inclined at 40° from the floor. The suitcase then slides an additional 5.22 m along the floor before coming to a stop. (a) Determine the suitcase's speed at the bottom of the ramp. (b) ...

Physics
A skier of mass 74.5 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 55 m up a 31° slope (assumed to be frictionless) at a constant speed of 2.0 m/s?

Physics
A 0.230 kg block on a vertical spring with spring constant of 4.25e3 N/m is pushed downward, compressing the spring 0.048 m. When released, the block leaves the spring and travels upward vertically. How high does it rise above the point of release?

Econ
Just a suggestion: Since there is a price floor on wheat (meaning that wheat cannot be sold under a certain price), wheat would be more expensive. In turn the people who make Healthy Wheat Cookies would produce less and would raise the price of Healthy Wheat Cookies, to make ...

random math queastion
√x^2+2 Is this possible as is?

Physics
An 52.0 N box of clothes is pulled 7.3 m up a 30.0° ramp by a force of 103 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, calculate the change in the box's kinetic energy.

Physics
Nevermind!! I got it! Thank you so much

Physics
I got 571, but it says it's wrong!!

Physics
An 52.0 N box of clothes is pulled 7.3 m up a 30.0° ramp by a force of 103 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, calculate the change in the box's kinetic energy.

Calculus
when I plug in the ordered pair (.25, 2)I get a zero in the denominator, was I doing that wrong?

Calculus
arcsinxy = 2/3 arctan4x find dy/dx at the point (1/4, 2)

math
name a possible set of scores for 15 students that would result in an average of 66%

colleGe math
y=-2|x| actually I'm sorry I left some of the details out. It says to let x=-3,-2,-1,0,1,2 and 3. Not sure what to make of this..

colleGe math
y=-2|-3| was the intended equation

colleGe math
y=-2|x| Will someone please explain how I'm supposed to graph this?

collEge math
x^3-27

colLege math
(2x-1)(x^2-4x+3)

coLlege math
√6x * √3x^2

coLlege math
It is done like this. :√6x

coLlege math
√6x*√3x^2

cOllege math
Any chance for help on this?

cOllege math
14x^2+5-[7(x^2-2)+4]

College math
(-30a^14b^8/10a^17b^-2)totally lost on me??

I need help in 8. Please help. the question itself is worth 50 points. Yeah it sounds crazy but it is my mid term exam which is 25 or 50 points each but is worth only 300 points.

Statistics
AJ DAVIS is a department store chain, which has many credit customers and wants to find out more information about these customers. A sample of 50 credit customers is selected with data collected on the following five variables: LOCATION (Rural, Urban, Suburban) INCOME (in \$1,...

finance
Knight has a property tax base with an appraised value consisting of \$142,000,000 of taxable real property and \$78,000,000 of taxable personal property. The assessment ratio is 50%. Exemptions for the elderly reduce assessed value by \$3,000,000. The city has a planned budget ...

Physics
40 miles per hour

Finance
Mr. Brown is in the 10% federal income tax bracket and wants to invest \$8,000 in interest-earning assets. Mr. Black is in the 35% bracket and wants to invest \$15,000. The current rate on a typical high-quality tax-exempt municipal bond is 5% and on a similar quality corporate ...

math
Can you write it in a sentence

math
Would this be a arithmetic sequence

math
how do you put it in a sequence

math
What is x?

math
a new automobile depreciated 20% of its value after 1 year. if the automobile is priced at \$18,000 after 1 year, what was its cost when it was new?

ap government
what is confederation ?

Chemistry
Complete the following chemical reaction. Label any precipitate that forms. KCl(aq) + AgNO3 (aq) ¨KNO3 (aq)+AgCl(s)

geometry
One thousand raffle tickets are sold for 4.00 each. one grand prize of \$800 and two consolation prizes of \$ 100 each will be awarded. Jeremy purchases one ticket. Find his expected value.

geometry
The National Association for Women in Scienc asked recent high school grads if they had taken certain classes. of those surveyed, 95 said they had taken physics, 108 said they had taken chemistry and 12 said they had taken both. nine said they had taken neither. How many ...

gemetry
An identification code is to consist of two letters followed by six digits. How many different codes if repetition is permitted.

geometry
If the probability of seeing moose in a day in a certain region of Alaska is 0.74, what is the probability of not seeing any moose in a day there?

geometry
Write the compound statement in symbols Let r= The food is good p= I eat too much q= I'll exercise If the food is not good, I won't eat too much.

geometry
Write the compound statement in symbols Let r= The food is good p= I eat too much q= I'll exercise If the food is not good, I won't eat too much.

geometry
Determine which if any of the three statements are equivalent. Give a reason for your conclusion. 1) If the house is not white,then the house is not small. 2) If house is not white and the house is not small 3)It is false that the house is white or that the house is not small.

geometry
construct a truth table for (~p^q)__> p

geometry
Construct a truth table for (qvp)__> ~q

geometry
Construct a truth table for (~PVq)___> q

geometry
construct a truth table for p_____> ~q

geometry
Construct a truth table for (~pvq) ____>

geometry
Construct a truth table for p----> ~q

GEOMETRY
Determine AU (CUB) start by finding C' and B' then find CUB

GEOMETRY
Given u= (22,23,24,25,26,27,28,29,30,31,32) A= 22,24,26,28,30) and b = (23,24,25,28,29) FInd AUB. Do not skip the answer. show your work finding A then B then find their union.

Physics
A Spanish galleon is about to be boarded by bloodthirsty pirates in the shallows of a Caribbean island. To save a box of treasure on board, the captain orders his crew to secretly toss the box overboard, planning to come back for it later. The rectangular box is waterproof and...

geometry
Determine the following AU(CUB)start by finding C and B then find CUB.

geometry
Given these sets a=(3,4,5,6,7) b=(6,7,8,9) c= (2,4,6,8) List the elements of this set CN (AUB)

geometry
start by finding C and B then find CUB

geometry
Determine the following AU(CUB)

geometry
THE FOLLOWING ANGLES ARE COMPLEMENTARY ANGLES. DETERMINE THE MEASURES OF ANGLE 1 AND ANGLE 2. X= ANGLE 1 3x+10= ANGLE 2

geometry
YES

geometry
FIND THE PERIMETER AND AREA OF A RIGHT IF THE SHORTEST SIDE IS 20MM. AND THE LONGEST SIDE IS 52MM. INCLUDE CORRECT UNITS WITH EACH PART OF YOUR SOLUTION.

geometry
What is the exact area of a circle with a diameter of 25 inches?

geometry
DEF and ABC are complementary angles and ABC is nine times as large as DEF. Determine the measure of each angle.

geometry
The supplementary angles are supplementary angles. Determine the measures of angle 1 and angle 2. angle 2=x angle 1 = 5x+6 This is what i came up with. <1+<2=180 I subtracted 6 from both sides.Divided by 5 and i came up with 34.8 degrees. < 1 = 5x+6 5(34.8)+6 180 ...

geometry
Determine the volume of the figure. The base of the pyramid is the triangle and we don't know it's height I need to find it first. solve for h The numbers are 5ft and 7ft on top and 6ft and 5ft on bottom. I have no idea how to do this one can someone please help.

geometry
Given the graph below,create a grouped frequency distribution. Amount per adult movie ticket. Los Angeles 12, New Orleans 9, Atlanta 7and a half, New York 12, Tokyo 20, Paris 17, Munich 15. I don't know how to post the graph but these are the shaded areas.

geometry
Given the graph below,create a grouped frequency distribution. Amount per adult movie ticket. Los Angeles 12, New Orleans 9, Atlanta 7and a half, New York 12, Tokyo 20, Paris 17, Munich 15. I don't know how to post the graph but these are the shaded areas.

geometry
The number of dry cleaning orders picked up at Sunny Fresh Dry Cleaners was sampled over 12 hours periods. Below is the sample 71 86 63 46 70 63 49 63 81 71 63 59 45 63 70 64 Construct a stem and leaf plot of the data.

geometry
What is the exact circumference of a circle with a diameter of 15 inches.

1. Pages:
2. <<Prev
3. 2
4. 3
5. 4
6. 5
7. 6
8. 7
9. 8
10. 9
11. 10
12. 11
13. 12
14. 13
15. 14
16. 15
17. 16
18. Next>>

Post a New Question