# Posts by angela

Total # Posts: 1,686

**History**

Which of the following statements is NOT correct about John F. Kennedy? A. He was the youngest elected president. B. He was the first president to be born in the twentieth century. C. He focused exclusively upon domestic matters rather than foreign affairs. D. He was ...

**History**

Thank you

**History**

The substitution of traditional imports by increasing domestic industrial production in Latin America began to fail in the 1960s because: A. they often lacked sufficient labor to allow them to compete with foreign manufacturers. B. Japan refused to buy any goods from countries...

**Physics**

A metal ball of mass 2kg is allowed to fall freely from rest from height of 5m. Calculate potential energy it possesses and kinetic energy before it reaches the ground. What happens to mechanical energy of the ball after it hits the ground?

**Math**

How high does the satellite have to be in order to see two cities at the same time if the cities are 2250 mi apart? (Round your answer to the nearest mile I thought it was 225 but I was wrong please help

**Math**

There are 5 red cubes and 10 green cubes in a bag. A cube is picked then put back in the bag and another is chosen. If I did this is done 180 times, how many green cubes would you expect to have picked?

**History**

Chinese "communes" were: A. Communist Party committee cadres. B. urban districts established by Mao Zedong. C. the modern equivalent of the traditional cottage industries in pre modern China. D. agricultural communities containing more than thirty thousand people. ...

**History**

All of the following are correct about Mao’s Red Guards EXCEPT: A. in many instances, they brutalized their victims with impunity. B. they were composed of discontented Chinese youth. C. they received re-enforcements from Taiwan. D. contained disgruntled party members. ...

**History**

Reading it again

**History**

Nikita Khrushchev: A. was determined to follow in Stalin’s path, avoiding even the appearance of innovation. B. was known as "old stone butt" by Western leaders. C. was mocked as "Cottonman" by many Russians. D. permitted the publication of One Day in ...

**History**

Nikita Khrushchev: A. was determined to follow in Stalin’s path, avoiding even the appearance of innovation. B. was known as "old stone butt" by Western leaders. C. was mocked as "Cottonman" by many Russians. D. permitted the publication of One Day in ...

**History**

ty

**History**

ohh goosh that'sa no no so i think it is B

**History**

Joseph Stalin: A. inaugurated a new, benevolent stage of governmental policy with his Stalingrad speech in January, 1946. B. continued his reliance on the terror apparatus, including the holding of about 9,000,000 Soviet citizens in Siberian concentration camps. C. named his ...

**Physics...please help me out..**

A body of mass 7.5kg is to be pulled up along a plane which is inclined at 30degree to the horizontal. If the efficiency of the plane is 75 %, what is the minimum force required to pull the body up the plane?

**Physics**

A body of mass 7.5kg is to be pulled up along a plane which is inclined at 30degree to the horizontal. If the efficiency of the plane is 75%,what is the minimum force required to pull the body up the plane?

**Physics**

A machine of efficiency 80% is used to raise a load of body of mass 75kg through a vertical height of 3m in 30seconds.Calculate the power input.

**Physics**

A simple machine with an efficiency of 75% lift of a load of 5000N.When a force of 500N is applied to it,Calculate the velocity ratio of the machine.

**math**

You have 50 coins, all quarter's and dimes. How would you know how many of each coin and come up with a total of 11.15$-?

**Math**

Estimate the quotient, using two set of compatible numbers

**algebra**

The data below shows the number of hours a week on average a group of students spend volunteering for community service projects. What is a cumulative frequency table that represents the data? 4 5 10 21 6 2 9 8 12 15 8 14 6 4 6 11 3 2 9 16 22 23

**math**

What is the formula and the answer of; Two numbers are in the ratio of 4:7 if the difference between the two number is 48 find the sum of two numbers.

**Chemistry**

36.2 mL. I don't know how to get the answer but I know that that's what it is.

**math**

A rectangular garden was planted measures 12 ft by 8 ft. You want to plant a border of roses around the garden of equal width with the same area as the garden. What should the width of the border of roses be?

**calculus**

The edge of a cube office is decreasing at a constant rate of two cm per seconds .find the rate of change of its volume at that instant when the volume is 64m cube

**tema senior high school**

An open box is to be made using one metre square of cardboard .find the maximum value of the box given that it has a square base

**math**

a section of lan is a square piece of land 1 mile on a side. How many acres are in a section

**Algebra**

It took 3 hoses 4 hours to fill the first 20,000 gallons in a swimming pool. Then a 4th hose was added. If there was 15000 gallon left to fill, how long did it take?

**American Gov't**

I'm not really sure this is the way the question was presented to me.

**American Gov't**

Do federal grants represent an appropriate percentage of the total federal budget and gross domestic product (GDP)? Explain, providing at least one (1) supporting fact.

**Delgado**

How many kilocalories are required to produce 1.027 mol of aluminum??

**Pre-algebra**

When graphing the equations y =2x-2,and y=2x+3, what observation can you make about the graphs. Can you make the same observation before graphing the lines? How?

**Pre-algebra**

Explain why the point-slope formula cannot be used to find the equation of a line that is parallel to y-axis?

**math**

What is the rule g for this problem 86 ? 52 ? 18 ?

**Math**

Of 20 scores, 19 are less than or equal to 10. Find the percentile rank of 10. They don't give you the exact number of tens so i don't really know how to do this? Could someone please explain?

**Science**

Improves stability and traction, better shock absorption, and lightweight for faster movement.

**Maths**

construct an equilateral triangle of perimeter is 19.5cm. Measure and Verify that each angles measures 60 degree

**Elementary Statistic**

twenty-five percent of all death are caused by diseases of the heart Ischemic heart disease accounts for 16.4% of all death and heart failure for 2.3% choose one death at random. What is the probability that it is from ischemic heart disease given that it was from heart ...

**MATH**

In a G.P, the product of the second term and fourth term is double the fifth term and the sum of the first four terms is 80. Find the G.P.

**Math**

13+5m

**Science**

Find the density in g/cm3 of a 1573 cm3 piece of metal having a mass of 46 kg.

**Science**

A fishtank with inside dimensions of 164 cm X 76 cm X 96 cm is filled with water. What is the volume in cm3 of water required? What is the mass in grams of the water required? What is the mass in kilograms?

**physics**

A rock falls off the edge of a cliff and strikes the ground after 3.8 s. What is the height of the cliff? Assume air resistance is negligible

**physics**

A ball is thrown straight upward from ground level with a velocity of 41 m/s How much time passes before the ball strikes the ground? Disregard air resistance.

**finance math**

A single person earns a gross biweekly salary of $780 and claims 6 exemptions. What is the person's net pay? a. It is the same as the gross pay. b. It is $11 more than the gross pay. c. It is $11 less than the gross pay. d. It is $13 less than the gross pay.

**math**

Evaluate: cos390*-tan150*sin300*cos(-30)/sin120*

**Calculus**

We can find some of the solutions of sin x = 0.2 graphically by graphing y = sin x and y = 0.2 (I was able to figure this one out) Use the graph below to estimate some of the solutions. (Let −3π < x < 3π.) Enter your answers as a comma-separated list. ...

**Math**

yeah thanks Ms.Sue.

**psych**

I believe it's B

**Chemistry**

If you have 324 grams KBr and want to produce a 1.48 M solution in water how many grams of water are needed?

**Calculus**

Update: Oops, nevermind; accidentally switched the 2 functions. Should be 5.683. Thanks anyways!

**Calculus**

Find the area of the shaded region below. x=(y^2)-2 x=e^y y=1 y=-1 I was doing a horizontal split so I had the integral from -1 to 1 (y^2-2)-e^y dy and had the answer -5.683... and it's wrong. What am I doing wrong?

**trig**

A frisbee is thrown within an angular velocity of 360 rpm. If the diameter of the frisbee is 12 inches, how fast does it travel when it hits the ground rolling on the side? round your answer to the nearest mph

**chemistry 12u**

2NH(g) +2.5O2(g) ---><--- 2NO(g) + 3H2O(g) + Heat

**statistics**

historically, the average customer spends $8.53 for all TGP restaurants(u=8.53). If the population standard deviation is $1.06(o=1.06) and the data is normally distributed, find the probabiltiy that the sample mean will be within $.15 of the populaiton mean using a sample size...

**Science**

I got a 100% thank you so much. Your a life saver.

**Math-Probability**

You have a friend who claims to be psychic. You don't believe this so you test your friend by flipping a coin 20 times and having him predict whether each flip is heads or tails. If you are right, and your friend is NOT psychic, the the probability of guessing correctly on...

**Math: Probability**

Sally has a jar of 10 marbles, 3 red, 4 blue, and 3 green. If Sally reaches into her jar and selects two marbles at random, what is the probability that the first marble is red and the second is also red? What is the probability that the first is red and the second is blue?

**Science**

So is it A or D?

**Language Arts**

In "January," what does the speaker mean by the image in the following lines? The sun a spark Hung thin between The dark and dark. Is the answer A?

**Math**

I got 80 degrees

**math**

Thanks, But that is how the teacher listed the problem. That's why we were so confused.

**math**

the ratio of boys to girls in class is 2:3. If Ms. Wise has 24 students in her class, how many girls are in the class. Please show work

**Physics**

In exercise physiology studies, it is sometimes important to determine the location of a person's center of gravity. This can be done with the arrangement shown in the figure below. A light plank rests on two scales that read Fg1 = 440 N and Fg2 = 320 N. The scales are ...

**agebra**

3/x-1+1/x+1=4/x

**Math**

If I was told to walk 43 degrees N for 20 miles but instead walked 40 degrees N for 20 miles how far off would I be from my original destination?

**algebra2**

what is the excluded value? y^2-y+5 --------- y+4

**Science**

I actually believe it is B, because the rocks being formed all come from the earths soil and magma. therefore they've been on earth and part of the earth's mass but it just changed forms. I may be wrong tho. but that is just what I would think.

**algebra**

What is the excluded value? _A__ b-2

**english**

A subordinating conjunction usually introduces a(n) _____. adjective clause adverb clause noun clause prepositional phrase

**english grammar**

what type of subordinate clause is this and how is it introduced? "Don't go out to jog until you finish your homework."

**algebra**

how do I translate 38 increased by b into an algebraic expression

**Math**

A manager at a concert venue is looking at the profits earned from the sale of tickets to an event. The manager wants to determine the amount of profits made based on a predicted number of tickets sold for the event. Assuming the profit per ticket is constant, as the number of...

**math**

Glenda ran 1,500 m in4 min 10 sec. How many meters is this per second?

**English**

I have to write a letter to scrooge from belle but am stuck please help it was after they split up

**math**

8,18,28,38,48 what is the next term? i came up with 10 am i correct? is this consider arithmetic or geometric?

**math**

multiply -2(p-q)

**math**

Simplify completely quantity 6 x squared minus 54 plus 84 over quantity 8 x squared minus 40 x plus 48 divided by quantity x squared plus x minus 56 over quantity 2 x squared plus 12 x minus 32

**Physics**

In our physics class we launched a rocket up into the air. We measured the time it took to go up to the point it reached the ground once again. How do I find the maximum height the rocket reached?

**statistics**

A professor who teaches a number of courses is choosing a team of 4 boys and 3 girls from among his graduate students to help with the setup of the labs in his courses. He has 12 graduate students of 6 boys and 6 girls. Assuming that the order of students does not matter, in ...

**calc**

A farmer intends to fence o a rectangular pen for his pig Wilbur, using the barn as one of the sides. If the enclosed area is to be 50 square feet, what is smallest amount of fence needed, in feet?

**Math**

The number of megapixels in a digital camera is one of the most important factors in determining picture quality. But, do digital cameras with more megapixels cost more? The following data show the number of megapixels and the price ($) for 10 digital cameras (Consumer Reports...

**algebra**

hi, i do online classes and they don't really give much explanation on how to do things so could you explain to me what 'find the zero's means? i haven't taken math in a very long time.

**algebra**

Create your own polynomial with a degree greater than 2.find the zeros of the function.

**statistics**

What would be a nondirectional hypothesis for this statement. Older drivers are safer than younger ones. I have this not sure if it is correct. There will be a difference between older and younger drivers.

**Math**

Create your own polynomial with a degree greater than 2.Find the 0's of the function.

**geometry**

If measure angle ABD = 4x and measure angle CBD =x,find measure angle ABD in degrees

**statistics**

Using the z table what z score would cut off the upper 25% of scores.

**Government LSN**

Ok thanx but how should I write my actual research paper like what things should I include because my teacher didn't really explain that to us and that's confusing to me

**Government LSN**

By giving me examples of how I can start off

**Government LSN**

Compair and contrast the Virginia and New Jersey plans. Explain how these led to the "Great Compramise"

**statistics**

I need to find the chi square distribution. Thanks During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes two weeks after a ...

**History**

so true

**History**

The new, industrial middle class was: A. actually not new at all, but was a propaganda term created by Napoleon III. B. the term used to describe the European proletariat after 1810. C. composed of people who were often the children of industrial workers or rural gentry. D. ...

**History**

i got it it is B also read :With this garrison gone, the Italian national army was able to take the Papal State of Rome in 1870.

**History**

seven weeks war

**History**

i have not received the book as yet im going through just reading and trying to make sense of of it

**History**

Prussia’s victory over Austria in 1866 allowed the Italians to take over __________ and the withdrawal of French troops during the Franco-Prussian War of 1870 allowed the Italians to take over __________. A. Naples; Florence B. Venetia; Rome C. Rome; Milan D. Venice; ...

**History**

All of the following are correct about nineteenth century Liberalism EXCEPT: A. having economic and political components. B. supporting the idea of civil rights. C. wanting to limit governmental power. D. opposing limiting governmental power. Ans: C