# trey

Popular questions and responses by trey
1. ## Physics

Radio amateurs are permitted to communicate on the "10 meter band." What frequency of radio waves corresponds to a wavelengthy of 20m? (The speed of radio wave is 3.00 x 10(8)m/s). Can you help me with setting up the formula? frequency = (wave

2. ## math

Two runners are competing in a race. One runner averages a pace of 7 minutes per mile and finishes the race in 28 minutes. The second runner finishes the race in 30 minutes. Which of the following is the pace of the second runner

3. ## math

A gumball machine contains red, orange, yellow, green, and blue gumballs. Twenty percent of the gum balls are red, 30% are orange, 5% are yellow, 10% are green, and the rest are blue. If there are a total of 120 gumballs, how many more blue gumballs are

4. ## trig

whats 21° 44' 3" as a decimal to the nearest thousandth of a degree

5. ## Statistics

If the standard deviation of the distribution of the difference between means is .76, what is the t score? - (15 - 23) / 0.76 = -10.53 - (0.76)(15-23) = -8.00 - [(6.5 + 4.5)/2][0.76] = 4.18 - (55 - 51) / 0.76 = 5.26

6. ## biology

how are glucose and ATP the same and how are they different...help would be awesome

I CANNOT BELIEVE THIS IS A THIRD GRADE WORKSHEET! THIS IS SOO INAPPROPRIATE. THEY HAVE NEVER DONE LONG DIVISION OR REMAINDERS & THERE IS ONE WEEK OF SCHOOL LEFT & THIS IS WHAT THE TEACHER HANDS OUT.....86 DIVIDED BY 9, 17 DIVIDED BY 3, 73 DIVIDED BY 8 !

8. ## Statistics

In an analysis of variance, if the null hypothesis is true then: - The research hypothesis is also true -You will need fewer participants for the experiment - There is less variance among the sample means than if the null hypothesis was not true - The

9. ## math

using digits 1-9 only once, multiply a 3 digit by a 2 digit number and get a 4 digit result 12*345=4140? looks ok to me. the answer would have to be 6789 or some order of those digits if you used the others in the question. digits 1-9 used only once, no

10. ## algerbra

A plane flies from new york to chicago (a distance of 1,600 miles) at 400 mph. Returning from Chicago to New York it flies into a headwind and averages only 320 mph. How many hours total was the plane in the air for the entire trip?

11. ## language

Which of the following sentences is punctuated correctly? A. A carpenter must use certain tools, hammers, saws, chisels, to finish a job. B. A carpenter must use certain tools hammers, saws, chisels -to finish a job. C. A carpenter must use certain tools -

12. ## Statistics

Consider a study in which the population variance estimate based on treatment group of 14 participants is 8, and the population variance estimate based on a control group of 17 individuals is 9. Compute the pooled estimate of population variance. - 7.25 -

13. ## Statistics

A sociologist interested in cultural differences compared women of two ethinic groups on a Role Approval Index (high scores mean high degrees of approval of one's social role). The results are as follows: Ethnic Group A: N = 15 M= 55 S2 = 6.5 Ethnic Group

14. ## Statistics

Suppose a researcher wants to study the effectiveness of a new reading program for students who have not acquired the necessary reading skills by the time they reach the 8th grade. A randomly selected group of 50 students from a local junior high with poor

15. ## Statistics

S2Within" equals: - the sum of squares within each group - the square root of the standard within-group deviations from the mean - the squared variance within groups - the population variance estimate based on the variation within each of the groups.

16. ## algebra

what is the next number in the following series? 16 21 26 26 12 5 ? hint" just because numbers are used doesn't always mean the relationship between them is mathematical. these numbers spell a word

17. ## Science

What is the best way to separate toothpicks and marbles?

18. ## Math

Eric bought a package of loose leaf paper that contained 500 sheets. In the first week, he used 1/5 of the paper. During the next two weeks, Eric used 2/5 of the remaining paper. How many sheets of paper did Eric have available at the start of the fourth

19. ## math

Compare. Write , or = 5.37 < 5.370 is the answer

20. ## Calculus

An airplane has airspeed of 724 k/h at bearing of North 30 degrees East. If the wind velocity is 32 from west. find the ground speed and direction of plane. Teacher gives solution of 740.5 k/hr and 57.9 degrees. Can anyone show steps?

21. ## English

Using the words biometer chronometer hydrometer micrometer perimeter phonometer thermometer put them in the correct order in sentences below. PLEASE CORRECT ME IF I'M WRONG!! 1.The THERMOMETER registered an increase in temperature. 2.He used a BIOMETER to

22. ## math

Marsha is using an 8-ft ladder to pick apples from a tree. If the bottom of the ladder is 3-ft from the bottom of the tree , calculate the angle of elevation to the nearest degree.Make sure to include diagram.

23. ## ut

The density of an unknown metal is 8.94 g/cm^3 and its atomic radius is 0.126 nm. It has a face-centered cubic lattice.

a rhombus has a perimeter of 44 centimeter and a diagnol 12 centimeters long. wat the area?

25. ## geometry

The measure of an angle's supplement is 44 less than the measure of the angle. Find the measure of the angle and its supplement.

My child was given this riddle as a homework assignment. We are stumped. Q: "The skydiver had fries and a milkshake,why was he nervous?" A: "Because he was _ _(2lett.word) _ _(2lett.word) _ _ _(3lett.word) _ _ _(3lett.word). " Unscramble the letters below

27. ## american history

The new democratic age of the 1820s, ’30s, and ’40s not only witnessed the advent of universal white male suffrage but also a strong impulse for social reform, which was often supported by those denied access to the ballot. What drove the impulse

28. ## math

a researcher tagged 100 frogs in a pond. One week later she took a sample and only 5 out of 20 were tagged. Using this method how many frogs would she estimate are in the pond

29. ## Social Studies

Can you check my answers? My answers are marked with this: (*) 1. What was the effect of World War I on South Carolina? A. The state economy shrunk significantly. *** B. Citizens used more resources, such as meat and fuel, than before the war. C. Factory

30. ## language

Which of the following sentences is punctuated correctly? A. After you sign the agreement it is too late of course, to change your mind. B. After you sign the agreement, it is too late of course to change your mind. C. After you sign the agreement, it is

31. ## language

The gist of the saying went something like this: If a person wants to get ahead in life, you have to be willing to work for it. Which of the following language conventions is violated in the sentence above? A. Use of a colon B. Verb tense C.

32. ## language

Which of the following sentences is written correctly? A When properly designed, an automobile can achieve great fuel efficiency. B. When properly designed an automobile can achieve great fuel efficiency. C. When properly designed, great fuel efficiency

33. ## language

Jimmy you must leave the room shut the door and be quiet. Which of the following options correctly punctuates the sentence above? A Jimmy, you must leave the room, shut the door, and be quiet. B. Jimmy; you must leave the room, shut the door and be quiet.

34. ## language (sentence fluency)

Which of the following options best demonstrates sentence fluency? A The two boys went to the store to buy some milk with their mother and her boyfriend, who had a broken foot after supper. B. The two boys went to the store to buy some milk after supper

35. ## math

Three pools are being drained for the winter. It takes Pool B twice as long to drain compared to Pool A, and it takes Pool B three times as long to drain compared to Pool C. If Pool C drains in 6 hours, which of the following is the number of hours it

36. ## Algebra

Please help with this: Write a polynomial in standard from with the zeros -2, -2 and 2. I remember that (x-a)(x-b)(x-c)=0 but I forget what exactly to do.

37. ## Math

If b varies directly as the square root of w and b equals a negative 24 when w equals 36, what is w when b is equal to 1/8?

How many milliliters of glacial acetic acid (17.3 M) would you need to titrate an aqueous solution of 100 grams sodium acetate (MW = 82.0 g mol-1) to get a final pH of 5.00 and a final volume of 1.00 liter? The pK’ for acetic acid is 4.76. Show your

39. ## Chemistry really desperate

How many milliliters of glacial acetic acid (17.3 M) would you need to titrate an aqueous solution of 100 grams sodium acetate (MW = 82.0 g mol-1) to get a final pH of 5.00 and a final volume of 1.00 liter? The pK’ for acetic acid is 4.76. Show your

40. ## Desperate chemistry

How many milliliters of glacial acetic acid (17.3 M) would you need to titrate an aqueous solution of 100 grams sodium acetate (MW = 82.0 g mol-1) to get a final pH of 5.00 and a final volume of 1.00 liter? The pK’ for acetic acid is 4.76. Show your

41. ## Chemistry

How many milliliters of glacial acetic acid (17.3 M) would you need to titrate an aqueous solution of 100 grams sodium acetate (MW = 82.0 g mol-1) to get a final pH of 5.00 and a final volume of 1.00 liter? The pK’ for acetic acid is 4.76. Show your

42. ## Math Word problems (3rd Grade)

Shondra has 72 roses and 48 lilies. She wants to make 8 bouquets with them, with the same number of each type of flower in each bouquet. How many flowers will be in each bouquet?

43. ## math

If you are calculating surface area of a right circular cone topped with a hemisphere. the radius is 4 cm and the rt angle is 8 cm...what is the lateral surface area. Is it 8.94 or is it 9? Explain answer please. Thanks

44. ## math

what distance formula would you use to solve this problem? A boat starts at point A, moves 3 km due north, then 2km due east, then 1 km due south, and 4km due east to point B. Find the distance AB.

45. ## pythagorean theotem

what is A=7 ft b=21 ft

46. ## physics

Objects of masses m1 = 4.00 kg and m2 = 9.00 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The object m1 is held at rest on the floor, and m2 rests on a fixed incline of θ = 41.0°. The objects are

47. ## physics

Objects of masses m1 = 4.00 kg and m2 = 9.00 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The object m1 is held at rest on the floor, and m2 rests on a fixed incline of θ = 41.0°. The objects are

48. ## algebra

i have tried for a long time and just cant come up with the rule for this function table. x= 1 2 3 4 5 and 6 y=180 165 150 135 120 and 105 if any one can help me thanks.

49. ## geometry

have an area of 11 square centimeters. I am made up of whole square centimeters. My length is 4 cm. I am not a rectangle. What am l?

50. ## math

6n+5 if n =4.5 what is n

51. ## Statistics

Data Information: Wage Income Statistics: Men VS Women Wage gap, by description, is the difference in salary among two groups of people. The description is associated with the practice of paying one gender more than the other. For many years there has been

52. ## chemistry

how much energy would it take to completely melt 200kg of lead if the lead is currently at 25 degrees celcius

53. ## social studies

i cant unscramble sartina

54. ## science

animals need what to get rid of body waste?

y=6-2x 7x-y=3

56. ## Biology

Suppose you have monohybrid pea plants in your garden and find that they produce round seeds to wrinkled seeds in the ratio of 3:1. If the alleles are designated R and r, respectively, what are the probable genotypes of the wrinkled seeds produced by your

57. ## geometry

Determine wether triangle deef is cogruent to triangle pqr given the coordinates of the verticles. D(-6,1),E(-1,-4),P(0,5),Q(7,6),R(5,0)

58. ## math

Explain how you could show five less than a number using an expression.

59. ## U.S. History

Define the following: 1) Valley Forge 2) Battle of Trenton 3) Battle of Saratoga 4) Battle of Yorktown 5) Treaty of Paris of 1783 6) Egalitarianism

60. ## birchwood elementary

what is te magnitude estiamte of 6 divide by 78.6 and wht place value is it in

61. ## physics

Rubidium forms the postive Rb+ Is this ion larger or smaller then the neutral atom? Explain PLEASE

62. ## Statistics

The ____________ is a hypothesis-testing procedure in which there are two separate groups at people tested and the population variance is not known. - t test for dependent means - t test for a single sample - t test for independent means - t test for

63. ## Statistics

Suppose a researcher wants to study the effectiveness of a new reading program for students who have not acquired the necessary reading skills by the time they reach the 8th grade. A randomly selected group of 50 students from a local junior high with poor

64. ## Statistics

Cohen's conventions for the t test for independent means are approximately _____ for a small effect size, ____ for a medium effect size, and ______ for a large effect size? - .1, .3, .5 - 2, 4, 6 - .2, .5, .8 - 3, 6, 9

65. ## Statistics

A mathematically defined curve that is the comparison distribution used in ANOVA is called the: - Normal distribution - Chi Square distribution - F distribution - T distribution

66. ## Math

The side of a square is (Radical 18). What is the area of the square? A) 18 B) 36 C) 9 D) 4 (radical 18)

67. ## Pre cal

how would you find the exact value of this expression?? 2sin15°cos°

68. ## Math

New Car. A game show gives away 2 new cars. One car is worth $50,000 and the other car is worth$40,000. Two members of the audience are randomly selected to participate and receive one of the two new cars. What is the expeted value if you are randomly

Raffle. There is a prize drawing for a new computer and a new stereo system. Suppose there are 1500 raffle tickets sold. The computer is worth $1000 and the stereo is worth$500. If the ticket cost $5, what is the expected value if you purchase one ticket? asked on March 18, 2009 70. ## Calc A particle is moving along the curve y= 3 \sqrt{3 x + 4}. As the particle passes through the point (4, 12), its x-coordinate increases at a rate of 4 units per second. Find the rate of change of the distance from the particle to the origin at this instant. asked on March 15, 2009 71. ## math express 2/5 as a percent asked on December 13, 2008 72. ## Math x^2+9x/x^2-81 asked on October 22, 2008 73. ## 5th grade what does an oblique line look like asked on October 8, 2008 74. ## College is this a good field of study? communication degree. what kind of job can I obtain with this degree asked on March 24, 2008 75. ## Physics If you are viewing a hologram and you close one eye, will you still perceive depth? Explain. asked on March 23, 2008 76. ## Physics How can you determine the polarization axis for a single sheet of Poloroid? asked on March 23, 2008 77. ## Physics The digital desplay of watches and other devices are normally polarized. What related problem can occur when wearing polarized sunglasses? asked on March 23, 2008 78. ## Physics Why are interference colors more apparant for thin films than for thick films? asked on March 23, 2008 79. ## criminal justice If you were an investigator writing a report on a suspect whom you believe to be guilty but for whom the evidence is too weak to go to trial, would you exaggerate or add to the facts in your report? Why or why not? asked on February 26, 2008 80. ## world history what is the significance of the fall of the roman empire? asked on January 23, 2008 81. ## WORLDHISTORY HOW DID THE MINOANS AND MYCENAEANS SHAPE EARLY GREEK CIVILIZATION asked on September 12, 2007 82. ## math what is 65% of 350? Multiply 0.65 by 350. That will be the answer. asked on June 22, 2007 83. ## Physics 2 Questions. 1. If you wished to produce a sound with a wavelenght in air equal to the length of the room, 10m, what would be its frequency? 2.You note a 4.0 second delay for an echo in a canyon. What is the distance to the wall of the canyon? 1. Use the asked on April 11, 2007 1. ## Science gayyy posted on February 11, 2020 2. ## Science i don't know I just love biology and I am a student that is a boy that is a cool dude posted on December 5, 2019 3. ## algebra 1 page 167 did you hear about... The answer is The farmer who named his pet rooster Robinson because it crew up posted on November 13, 2019 4. ## chemistry Given the following chemical reaction: N2 + 3H2 → 2NH3 How many grams of NH3 would be produced if you started out with 56 grams of nitrogen gas and 10 grams of hydrogen gas? posted on November 6, 2019 5. ## math The answer is 54. If each pie is cut in fourths and each piece cost$1.50 then the whole pie cost \$6. And if they are nine pies then you multiply 9x6 which will be equal to 54.

posted on November 14, 2018
6. ## Science

Use a Filtration to separate the two.

posted on October 12, 2018
7. ## chem

-870

posted on September 9, 2018

Since the ratio is 4:5 for cats Take (4/9) x 153 = 68

posted on April 5, 2018
9. ## Math

Since the ratio is 3 dogs to 2 cats, its a total of 5 animals Therefore to find the number of dogs if a total of 30 animals are present you take (3/5) x 30

posted on April 5, 2018
10. ## Math

100

posted on April 4, 2018

Those answers are all right. Thank u

posted on July 21, 2017
12. ## Understanding Perimeter

posted on April 3, 2017
13. ## Math

Thanks, Ms.Sue

posted on January 28, 2017
14. ## Math

200 sheets?

posted on January 28, 2017
15. ## Math

Because i guessed

posted on January 28, 2017