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Posts by rita

Total # Posts: 225

Physics
When a 2Kg block of metal at 600°C is put into water at its boiling point, 0.5 kg of steam is released. Find the specific heat capacity of the metal?

Math
If it is 750 calories per hour how many hours would a person have to jump rope in order to lose 1 lb ?

Math
A fraction 2 1/2

Math
One picked 21/2 times as many apples as a second man. A third man picked half as many as the second man. Together they picked a total of 240 apples. How many apples were picked by each man.

Physics
A siren emits a sound of frequency 1200 kHz. With which frequency is it received by a car moving at a speed of 20 m/s. a) Away from the siren? b) Towards the siren?

math algebra
if f(x) = x+1/x^2-9 and g(x) = x/x-3, find a) the domain of f(x) b) the domain of g(x) c) (f+g) (x) d) the domain of (f+g) (x)

Science
When is the end of the world

maths
rita had 5/6 of cake.she ate 2/3 of it .what part of the cake did she eat?

Probability and Statisics
Suppose that 20% of the adult women in the United States dye or highlight their hair. We would like to know the probability that a SRS of size 200 would come within plus or minus 3 percentage points of this true value. In other words, find probability that pˆ takes a ...

maths
a circular pool is 300 and height is 250 find the radius

Algebra
sorry I posted the last question wrong. The question is Simplify 6 over the square root of 3+2.SOrry Thanks

Algebra
Could you please help me with this question? Simplify 6/Square root of 3-2. Also, could you help me with the steps on how to figure it? Thank you. a.4/square root of 3 b. 12-6 to the square root of 3 c. Square root of 3-2 d. 3

statistics
Four percent of DVD players manufactured by an electronics company are defective. Suppose six DVD players are randomly selected from the production line. Each DVD player is determined to be defective or non-defective. a. What is the probability that none of the DVD players are...

English
What are the reasons why boys should not help at the kitchen?

Language Arts
Sorry, but, I don't think you answered it.

Language Arts
5. Which situation uses the word “fathom” in the same way it is used in the poem “Full Fathom Five”? A. when determining the best path to take on your bicycle B. when figuring out how deep a sunken ship is *** C. when deciding how long a flight across the ...

Language Arts
“Train Tune” by - Louise Bogan Back through clouds Back through clearing Back through distance Back through silence Back through groves Back through garlands Back by rivers Back below mountains Back through lightning Back through cities Back through stars Back ...

For Reed
I'm pretty sure I am correct...

Language Arts
Wait, what am I wrong on?

Language Arts
No, not D. I meant, B! Aaarggh! Dumb

Language Arts
I'm guessing 2 is D, then. Sorry, I picked D. But, might be wrong.

Language Arts
"Full Fathom Five" by - William Shakespeare Full fathom five thy father lies; Of his bones are coral made; Those are pearls that were his eyes; Nothing of him that doth fade But doth suffer a sea change Into something rich and strange. Sea nymphs hourly ring his ...

Language Arts
Thank you Reed, sorry Ms. Sue.

Language Arts
Sorry, 2 is 1.

Language Arts
Really? I didn't know... I'm sorry. :-/

Language Arts
"Full Fathom Five" by - William Shakespeare Full fathom five thy father lies; Of his bones are coral made; Those are pearls that were his eyes; Nothing of him that doth fade But doth suffer a sea change Into something rich and strange. Sea nymphs hourly ring his ...

Math
I'm terrible at explaining stuff.

Math
The graph below shows the sales of a popular song each week it was in a Top 40 song chart. which statement most accurately describes the slope of the graph A. The sales increased by 1 hundred thousand every 2 weeks. B. The sales decreased by 1 hundred thousand every 2 weeks...

Math
Oops! I meant to say for the 2nd one... The area of the smaller triangle is 36 square inches. What is the area in square inches of the larger triangle?

Math
A swimming pool was filled with 600 gallons of water in 20 minutes. What was the rate at which the pool was filled A.25 gallons per minute B.30 gallons per minute *** C.50 gallons per minute D.150 gallons per minute A swimming pool was filled with 600 gallons of water in 20 ...

Math
It tells me about the angles, side lengths, area, and shapes.

Math
The sum of the digits of a two-digit number is 14. The number formed by reversing the digits is 36 more than the original number. What is the original number?

St charles
a= 2 S19=551

Chemistry
A solution of NH3 in water has a pH of 11.17. Calculate it's molarity

trig
The angle relative to the horizontal from the top of a tree to a point 12 feet from its base(on flat ground) is 30*. Find the height of the tree.

kunwar
why their is gap between railtracks of rail

grammar
a. he and his wife

Chemistry
Prepare 250ml of 0.2M phosphate buffer of pH 6.4.starting from Na2HPO4,NaH2PO4,0.129N NaOH solution.

algebra
The atmospheric pressure P in pounds per square inch (psi) is given by P = 14.7 e−0.21 a where a is the altitude above sea level (in miles). If a city has an atmospheric pressure of 12.31 psi, what is its altitude? (Recall that 1 mi = 5,280 ft. Round your answer to the ...

english
a humbly request (from or by)rita in this sentence i use from or by plz tell me quick i have test in tution ???????

Math-urgent-
What's 11/12 divided by 3/4 in repeated subtraction?

ap chem
an unknown gaseous hydrocarbon reacts with oxygen to form CO2 and H2O, DETERMINE HEAT OF FORMATION FOR THE HYDROCARBON. the density of the mixture of CO2 and H2O at 1 atm and 200 degree celsius is 0.751g /L and heat of reaction is equal to -2044.5 KJ /MOL hydrocarbon

Algebra
Please Help Me with this problem:Ozark Furniture Company can obtain at most 3000 board feet of maple lumber for making its classic and modern maple rocking chairs. A classic maple rocker requires 15 board feet of maple, and a modern rocker requires 12 board feet of maple. ...

statistics
Suppose that the scores on a reading ability test are normally distributed with a mean of and a standard deviation of . What proportion of individuals score more than points on this test

math
idk

early childhood education
PENN FOSTER exam 405559RR ANSWERS TO COMPARE MY ANSWERS TOO

early childhood education
exam 405559RR ANSWERS TO COMPARE MY ANSWERS TOO

physics
seriously, i dont understand this question

eCONIMIC
2. The Theory of the Firm document, the Friedman article, and the information in chapter 4 argue that the main goal of a firm in a market economy is to maximize profit (shareholder wealth) over the long term. However, SEC regulations require U.S. corporations to publish ...

math
The sale force of a business consist of 10 men and 10 women A production unit of 6 people is set up at random what is the probability that it will consist of 4 men and 2 women

Business Math
yes

Business Math
Compute the simple interest. Assume 1 month to be of a year. Round your answer to the nearest cent. Principal Rate Time Interest $1,025 4.5% 16 months

math
Two of the sides of a right angled triangle are 5m nd 12m.find the length of the third side(there are two possible answers)

math
Solve for x 8 is to 64 as 2 is to x

Math
60

Math
Find the least common denominator for the following fractions: 3/4, 19/20, 1/6, 3/5, 8/15

Discrete Mathematics
Determine whether the given argument is valid: If Socrates was a philosopher, then he wasn’t a historian. Socrates was a historian. So Socrates was not a philosopher.

Math
44

math
Define a variable and write an inequality for each of the following. A. When 3 times a number is decreased by 8, the result is at least 2 times the number. B. Ignatz, the Airedale, and Angus, the Scottie, collect bones. Ignatz has 5 more than Angus. They have at least 27 bones...

math
A. In 1 year Kristen will be four times as old as Danielle. Ten years from then Kristen will only be twice as old as Danielle. How old is Kristen now? B. The greater of two integers is 4 times the lesser. Of the lesser integer is increased by 12, the result is 3 less than the ...

math
1. The largest of five consecutive integers is twice the smallest. Find the smallest integer. 2. When the sum of three consecutive integers is divided by 9 the result is 7. Find the three integers. 3. If each of three consecutive integers is divided by 3, the sum of the ...

sociology
I was asked to explain using the feminism theory how facebook has made an impact on today's technologically advanced society in the apa format and I am lost I have not been in school for 30 years and decided to start again and I am so confuse

sociology
using feminism, show how Facebook has made an impact on today's technologically-advanced society.

physics
why weight of gold varies at 2 different places like panna and ladakh (physics)

maths
michael has 10 pairs of black socks,8 pairs of white socks&7 pairs of green socks everything is mixed in a drawer. as there is no light he is not able to identify the colour of the socks . how many of the socks will he have to take to match 1 pair

statistics
A sample of n = 7 scores has a mean of M = 5. After one new score is added to the sample, the new mean is found to be M = 6. What is the value of the new score? (Hint: Compare the values for ƩX before and after the score was added.

statistics
14) A population of N = 20 scores has a mean of µ = 15. One score in the population is changed from X = 8 to X =28. What is the value for the new population mean?

physics
i to found out the same but it says wrong

physics
A rectangular conducting homogeneous (which means the material is the same throughout) block has dimensions 1cm×2cm×3cm . A voltage V is applied between all opposite faces of the block and the corresponding currents were recorded. What is the maximum current ...

maths
a and b are positive numbers that satisfy the equation 1/a−1b=1/a+b. Determine the value of a^6/b^6+b^6/a^6.

maths
look at the ques carefully If sin^2∠A=ab its square there

maths
The angles in triangle ABC satisfy 6sin∠A=3√3sin∠B=2√2sin∠C. If sin^2∠A=ab, where a and b are coprime positive integers, what is the value of a+b?

maths
Let P=(p1,p2,…,p7) be a permutation of the integers 1,2,…7. For how many permutations P are all seven sums S1=p1,S2=p1+p2,…,S7=p1+p2+⋯+p7 not multiples of 3? Details and assumptions A permutation is a rearrangement of the entire set of objects.

Physics
How much work must be done on a 500-kg car to accelerate it from 29-km/hr to 112-km/hr?

resume
I am not a english speaker!!!!!!!! i am writing a resume is this statement correct: I am introducing my work: Student focus teaching professional with instructional experience and multicultural knowledge. Currently one of three teachers at Grovetown High School, Grovetown, ...

english
an interjection is always

earth
a suggestd answer to a question is a what

Springfield
Given the fact that there is no national religion in the United States, what application do the ethics of religious testaments have on the average American criminal justice practitioner?

Physics
A baseball whose mass is 0.25kg is struck by a bat. just before impact, the ball is traveling horizontally ay 40m/s to the left and it leaves the bat at an angle of 30 degrees above the horizontal with a speed of 60m/s. if the ball and bat were in contact for 0.05s, find the ...

physics
An airplane taxis onto the runway going at 10 m/s.if it can accelerate at 3.0 m/s square and its take-off speed is 90 m/s, what length of runway will it need?

physics
An airplane taxis onto the runway going at 10 m/s.if it can accelerate at 3.0 m/s square and its take-off speed is 90 m/s, what length of runway will it need?

math
a farmer kept track of his cows and hens by counting the legs and the heads.if he counted 78 legs anf 35 heads,hw many cows did he have?

Chemistry
Suppose you dissolve 10 grams of HCl gas in 250 ml of water initially at 25 C, what will the final temperature of the solution be?

Math
same divide :P

Math
Thank you Ms. Sue

Math
The area of Egypt is about 386,700 square miles. The area of Wyoming is about 97, 818 square miles. How many times larger is Egypt than Wyoming? Do I multiply, divide or add?

algebra
30*2=240 240/2=120 answer: 120

algebra
One side of a trianle is 2cm shorter than the base,x. The other side is 8cm longer than the base. What lenghts of the base will allow the perimeter of the trianlge to be at least 30cm

Math
2^z=1/16 find value of z

geometery
how long does a piece of wire need to measure to get 18" diameter?

Calc
How much money will we have in 6 months if we invest $1000 into an account earning 8% compounded continuously? How long will it take the $1000 to double? What is the effective rate for 8% compounded continuously that would produce the same accumulated amount after 1 year as 8...

math
lisa put one sheet each of blue, green, tan, white and gold paper into a printer. she forgot the order of the colors. what is the probability of lisa's printing on white paper?

chemistry
12.6g

finite math
what is the cost to install new carpet in an 15' by 21' room if the price of the carpet including installation is $14.50 a square yard?

eng
What is the pronoun in this sentence: Me Smith gave it one more try before giving up on the mower How does the noun function and what is the pronoun class?

english
I need help with my one paragraph (8 to 12 sentences in length) assignment. My biggest problem I believe is my topic sentence (which must be the first sentence of the paragraph). Also I need help with transitioning between one of my sentences. The following is the scenario ...

Chemistry
suppose you dissolve 10 grams of HCl gas in 250 ml of water initially at 25 C, what till the final temperature of the solution be?

sTATISTICS
You are estimating the contractor’s material handling cost as a factor of the material cost. After examining 6 previous contracts you have the percentage (factor) for each contract: 2.5% 6.2% 3.2% 12.9% 7.0% 15.3%

algebra
ceate a quadratic equation with the given solutions 8i and -9i

penn foster
which one is true? risk management is controlled and managed by HIPPA regulations risk management is unique to the health care industry. risk management is as spontaneous response to an unexpected incident. risk management is concerned with reducing exposure to legal liability.

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