Posts by Angela

Total # Posts: 1,718

Stats - Help!!!1
A botany student counted 11 blades of grass in one square centimeter of lawn and measured the lawn as a rectangle 61 m by 31 m. She reported that there were 208,010,000 blades of grass in the lawn. The precision of her conclusion: A. correctly represents her measurements. B. ...

Stats
so it should be A...

Stats
A nutritionist wants to conduct a study to validate the efficacy of an herb as an aid in weight loss. She randomly assigns half of a group of overweight persons to a treatment group who are given the herb with instructions for its use and a planned diet for six weeks. The ...

Stats
thanks

Stats
Which is the best fertilizer for Mr. Jimenez’ backyard grass? Select the type of study most appropriate to the question. A. Experimental B. Experimental blinded C. Case-controlled observational D. Observational Answer: B

Statistics
thank you

Statistics
The father of a junior high school student wants to determine the most popular book among junior high students. Select the sample with the least potential bias. A. A randomly selected group of 10 book sellers B. A randomly selected group of 30 junior high students C. A ...

Statistics
Which is the best fertilizer for Mr. Jimenez’ backyard grass? Select the type of study most appropriate to the question. A. Experimental B. Experimental blinded C. Case-controlled observational D. Observational Answer: B

Statistics
A U.S. government report stated that, “With bank interest rates around 1.0%, 8% of wage earners believe it worthwhile to keep money in a savings account. However, at 3.0% interest, 36% of wage earners believe it worthwhile to keep money in a savings account. The margin of...

Statistics
A botany student counted 11 blades of grass in one square centimeter of lawn and measured the lawn as a rectangle 61 m by 31 m. She reported that there were 208,010,000 blades of grass in the lawn. The precision of her conclusion: A. correctly represents her measurements. B. ...

Statistics
The results of a poll are stated as follows: “Based on a survey of 156 randomly selected students, 90% of the student body of 2870 students agree that no student should have to take final exams in two consecutive exam periods”. If 2578 students actually agree, then ...

Statistics
A nutritionist wants to conduct a study to validate the efficacy of an herb as an aid in weight loss. She randomly assigns half of a group of overweight persons to a treatment group who are given the herb with instructions for its use and a planned diet for six weeks. The ...

maths lit, life science,History,English,Afrikaans,
I want to become an astronomer so I was wondering if it's possible to study for one or wht help me plz ???

Math- Average Costing
Hi, Can you please help me answer this question using the average costing methodology? A hospital was out of juice at the end of September. They bought 200 cases on Oct. 1 at $10.00 each. and 200 more cases on Nov. 1 for $12.00 each. There were 100 cases left at the end of Oct...

Math
A hospital was out of juice at the end of September. They bought 200 cases on Oct. 1 at $10.00 each. and 200 more cases on Nov. 1 for $12.00 each. There were 100 cases left at the end of Oct. What would be first case expensed on Nov. 2 using the average costing method?

History
The answer is B

Grade 8 Art
Thankyou that was so amazing. You are life savers!!!! B D C C I got 100%

civic education
Some basic limitations to fundamental human right could be label and slander which is highly restricted and this limitation is under the right to freedom of speech

History
Which of the following statements is NOT true of the Islamic revival in the Middle East? A. Islamic "fundamentalism" may be a practical attempt to try to counter hedonism and other destabilizing forces. B. It has resulted solely from a clash between modern and ...

History
Immediately after World War II, General MacArthur’s responsibilities included the demilitarization of Japanese society and the: A. elimination of the Japanese emperor. B. trial of American officials charged with war crimes. C. laying of the foundations of postwar ...

History
Thank You

History
The Western presence in Africa left a legacy that: A. was entirely negative. B. disappeared immediately when the colonial powers withdrew. C. was overwhelmingly positive in its impact. D. mixed, with both positive and negative results. Answer: D

History
The controversial Indian writer who uses the technique of magical realism and who has angered Moslems is: A. Anita Desai. B. Salmon Rushdie. C. R. K. Narayan. D. V. S. Naipaul. Answer : B

algebra
three more than the product of 17 and Matt's height

History
thanks Reed

History
Which of the following statements is NOT correct about religion in the West after World War II? A. Religious renewal in the Catholic Church was associated with Pope John XXIII and Pope John Paul II. B. Church attendance in Europe increased significantly in the 1960s and 1970s...

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 ?

Movement and Music
20%

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...

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