# courtney

Popular questions and responses by courtney
1. ## geometry

Two sides of a triangle have lengths 4 and 7. Which of the following can NOT be the length of the third side? A. 4 B. 7 C. 11 D. 5

2. ## geometry

SM=3x−4, and RN=9x−20. Find the value of x. A. 16 B. 4 C. 12 D. 8

3. ## geometry

The lengths of two sides of an isosceles triangle are 8 and 10. The length of the third side could be? A. either 8 or 10 B. 6, only C. 8, only D. 10, only

4. ## English

It is impossible to have an indirect object without a subject, transitive verb, and a(n) _____. noun preposition direct object intransitive verb

5. ## English

What grammatical structure is the italicized portion of the sentence? 1. (Headed by a senior), the group drew up rules for School Spirit Week. - nominative absolute 2. My most valuable coin, (one from Spain), is worth more than \$100.00. - prepositional

Why write

7. ## physics

a 15-g bullet is fired from a rifle. it takes 2.50 * 10^-3s for the bullet to travel the length of the barrel, and it exits the barrel with a speed of 715 m/s. assuming that the acceleration of the bullet is constant, find the average net force exerted on

8. ## Chemistry

Many metals react with oxygen gas to form the metal oxide. For example calcium reacts: 2Ca(s) + O2(g)--> 2CaO(s) Calculate the mass of calcium prepared from 4,20g of Ca and 2.80g of O2. (a) How many moles of CaO can form from the given mass of Ca? (b) How

9. ## Physics

A car going 15 m/s is brought to rest in a distance of 3 m as it strikes a pile of dirt. How large a force is exerted by the seatbelts on a 90 kg passenger as the car is stopped?

10. ## Physics

In a huge oil tanker, salt water has flooded an oil tank to a depth of h2 = 4.50 m. On top of the water is a layer of oil h1 = 7.55 m deep, as in the cross-sectional view of the tank as shown in the figure. The oil has a density of 0.700 g/cm3. Find the

11. ## Pre-Cal

A Ferris wheel is 40 meters in diameter and boarded from a platform that is 5 meters above the ground. The six o'clock position on the Ferris wheel is level with the loading platform. The wheel completes one full revolution every 7 minutes. You make two

12. ## Soc/110

What new challenges in collaboration and teamwork does technology present? Provide examples

13. ## Math

what angle in radians corresponds to 3 rotations around the unit circle

14. ## Physics

A bat flying in a cave emits a sound and receives its echo 1 s later. How far away is the cave wall? is it 340.29 m? the speed of sound is 340.29 m/s i believe v = d/t d = (t)(v) d = (340.29)(1) Nope but thanks for trying :)

16. ## Speech

Group communication should be evaluated according to which of the following characteristics? a. Do the group members attain their individual goals? b. Do all members participate in the decision-making process? c. Does the group leader encourage

17. ## College Algebra

A truck driver traveled at an average speed of 55 miles per hour on a 200 mile trip to pick up a load of freight. On the return trip(with the truck fully loaded), the average speed was 40miles per hour. What was the average speed for the round trip?

18. ## physics

a 95-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is: (A) accelerating upward with an acceleration of 1.8 m/s^2 (answer 1.1 * 10^3 N) (B) moving upward at a constant speed (answer 931 N) (C) accelerating

19. ## calculus

Find the number b such that the line y = b divides the region bounded by the curves y = 16x2 and y = 9 into two regions with equal area. (Round your answer to two decimal places.)

20. ## english

Read the lines from Wordsworth's "Tintern Abbey." The sounding cataract Haunted me like a passion: the tall rock, The mountain, and the deep and gloomy wood, Their colours and their forms, were then to me An appetite: a feeling and a love, That had no need

21. ## Math

An Aircraft factory manufactures airplane engines. The unit cost C (the cost in dollars and each airplane engine) depends on a number of engines made. If x engines are made, then the unit cost is given by the function C(x)=0.5 X² -280 X + 52506. What is

22. ## english

Which of the following sentences is written in active voice? a. The decision was made to revise the original proposal. b. A market analysis was conducted to determine the project’s need. c. The project was developed after months of planning. d. The

23. ## PHYSICS

Calculate the pressure on the top lid of a chest buried under 4.30 meters of mud with density 1.75X 10^3 kg/m^3 at the bottom of a 12.5 m deep lake

24. ## Bio 20

When blood enters a vein from a venule, the blood pressure A) remains constant because of the heart's pumping action B) increases because of the size of the vein C) increases because of stretch receptor stimulation D) decreases because of the size of the

25. ## Speech

After analyzing a problem, what is the next step in the problem-solving process? a. Develop creative solutions. b. Identify possible solutions. c. Select a solution. d. Implement a solution. I think it might be B

26. ## Chemm

A 2.00L flask is filled with propane gas(C3H8)at 1.00atm and 15C. What is the mass of propane in the flask?

27. ## english

One way to eliminate sexist language in your writing is to _________. a. use man or words containing man to refer to both genders b. avoid the generic, he, the male pronoun used to refer to both genders c. address mature women by Mrs. or Miss d. use

28. ## English

When writing for emphasis one should ____________. a. use passive voice b. use active voice c. use multiple adverbs d. omit the actor from the sentence

29. ## Chemistry

If the density of carbon is 3.51 g/cm3, and you have a small diamond (pure carbon) that has a mass of 0.0270 grams, what is the volume?

30. ## Organic Chemistry

Hello I have to determine the theoritical yield of sulfanilamide after crystalization of impure sulfanilamide with 95% ethyl alcohol (the impure sulfanilamide contains 5% Fluorenone) I understand how to calculate the theoretical yield, my problem is

31. ## English

Dialogue is often less formal than the surrounding description and narrative. True? False?

32. ## College Algebra

Find two consecutive numbers such that the difference of their reciprocals is 1/4 the reciprocal of the small number.

Describe Johnny’s relationships with Cilla, Lavinia Lyte, and Dove now that Johnny is living with Rab and his family. What do these relationships reveal about Johnny and his personal growth?

34. ## Math

I am part of a whole. I am less than one-half but greater than four tenths. I am a decimal with the digit 2 in my hundredths place. What number am I?

35. ## math 5th

Estimate the area of the circle and use 22/7 for pie. Teh circle shows line all the way accross measruing 28cm. Find area. Can some one explain how

36. ## Trig

How do I use the unit circle to evaluate tan(-3pi/4)

The radii of the larger wheels on a tractor are 32 cm. If the ratio of the diameter of a large to small wheel is 19:7, find the diameters of the smaller wheels

38. ## math

the ratio of hydrogen atom to oxygen atoms in water is 2:1 if an amount of water contains 341 trillion atoms of oxygen how many hydrogen atoms are there? how would i do this?

39. ## Math

The measure of an angle formed by two secants intersecting inside the circle equals a.½ the sum of the intercepted arcs b.½ the difference of the intercepted arcs c.½ the measure of the intercepted arc I need help please!

40. ## English

Read the lines from Shelley's "Ode to the West Wind." O thou Who chariotest to their dark wintry bed The winged seeds, where they lie cold and low, Each like a corpse within its grave, Which best explains the metaphor in these lines? 1.The wind is compared

41. ## Soc/110

What collaboration techniques may facilitate collaboration? What technologies may aid collaboration? Provide examples.

42. ## Soc/110

What are the elements of a collaborative team meeting? Provide an example of each element and explain its importance to collaboration

43. ## geometry

the measure of one interior angle of a parallelogram is 50 degrees more than 4 times the measure of another angle. find the measure of each angle.

44. ## Math

A box contains some white balls and some blue balls. There are 5 more blue balls than white balls. One ball is removed at random and not replaced. A second ball is then removed at random. The probability that the balls are different colours is 52/105. Find

45. ## Statistics

Find the margin of error for a 95% confidence interval for estimating the population mean when the sample standard deviation equals 100, with a sample size of (i) 400, (ii) 1600. What is the effect of the sample size? (b) Find the margin of error for

46. ## Physics

Calculate the pressure on the top lid of a chest buried under 4.30 meters of mud with density 1.75 103 kg/m3 at the bottom of a 12.5-m-deep lake

47. ## precal

A kite flier wondered how high her kite was flying. She used a protractor to measure an angle of 36 degrees from level ground to the kite string. If she used a full 140-yard spool of string, how high, in feet, was the kite? (Disregard the string sag and

Write a mixed number for each time period. Be sure each fraction is in lowest terms. 8:00am to 9:20 am Not sure how to set up

49. ## Math

Write an equation of the line satisfying the given conditions in standard form. How do you do this? contains (-4, 0.3) and (3, -3.4)

50. ## Math

1.Radii of congruent circles are equal. True or False 2.The measure of an angle formed by two secants intersecting outside the circle equals a. ½ the sum of the intercepted arcs b. ½ the difference of the intercepted arcs c. ½ the measure of the

51. ## Math

A diameter that is perpendicular to a chord bisects the chord. True or False

52. ## trig

if P(-4,1) is a point on the terminal side of angle (theta), in standard position, then what is the exact value of csc (theta)?

53. ## general science

which of the following accurately shows the correct terms for the two sides of a chemical equation, correctly placed to the left or to the right where they belong and also shows the correct symbol that is written between them? reactants --> products

54. ## Physics

An aircraft has a liftoff speed of 33 m/s. What minimum constant acceleration does this require if the aircraft is to be airborne after a takeoff run of 240m?

55. ## Language art

Consider the main characters from " The Stolen Day and the night the bed fell in a paragraph discuss which character learns the most and which one learns the least. PLZ ANSWER ASAP and yes I have read both stories

56. ## Physics

A 2.87 kg object initially moving in the positive x-direction with a velocity of +4.87 m/s collides with and sticks to a 1.96 kg object initially moving in the negative y-direction with a velocity of -2.55 m/s. Find the final components of velocity of the

57. ## physics

a boat has a mass of 6800 kg. its engine generate a drive force of 4100 N, due west, while the wind exerts a force of 8000 N, due east, and the water exerts a resistive force of 1200 N due east. what is the magnitude and direction of the boats

58. ## Chemistry

A solution contains an unknown amount of dissolved magnesium. Addition of 3.38×10−2mol of Na2CO3 causes complete precipitation of all of the magnesium. What mass of magnesium was dissolved in this solution?

59. ## Chem

if 15 g of nitrogen reacts with 15 g of hydrogen, 10.5 g of ammonia is produced. what is the percent yeild of this reaction?

60. ## physics

A train travels at a constant speed around a curve of radius 225 m. A ceiling lamp at the end of a light cord swings out to an angle of 20.0º throughout the turn. Draw a free body diagram? What is the speed of the train?

15y

62. ## Ben davis

solve for y 4y+10=12

63. ## geometry

what is the midpoint of a line segment with endpoints at (-4, 15) and (22,3)

64. ## Managerial Accounting

Flexible budget planning Sam Yu, the president of Centech Computer Services, needs your help. He wonders about the potential effects on the firm's net income if he changes the service rate that the firm charges its customers. The following basic data

65. ## Chemistry

What mass of 3.0 wt% H2O2 solution is required to provide a 25% excess of reagent for the following reaction with 12 dietary iron tablets that contain ~15 mg of iron per tablet?

66. ## Pre Calc

Determine how many orders of magnitude the quantities differ. A canary weighing 20 g and a hen weighing 2 kg. I want to say 1 but I am not sure...

67. ## US History

1. In the war of 1812 the most effective American Action against British shipping was by: A. US navy frigates B. navies of individual states C. pirates in the Caribbean D. US Navy submarines E. privateering merchantmen 2. The British changed their strategy

68. ## Geography

A prime minister is the leader of what type of region? climate cultural economic political I thought it was a nation but its not a answer choice.

69. ## English

A composite character has characteristics of many people is this true or false?

70. ## HAMLET

Whats this mean? And liegemen to the Dane.

71. ## Chemisrty

Chlorine gas can be produced in the laboratory by adding concentrated hydrochloric acid to manganese(IV) oxide in the following reaction.. MnO2(s)+ 4HCl(aq)-->MnCl2(aq)+ 2H2O(l)+ Cl2(g) A. Calculate the mass of MnO2 needed to produce 25.0g of Cl2 B. What

72. ## Math

At a sale Jean received a discount of \$10.00 on a coat marked \$80.00. What was the rate of the discount?

73. ## psychology

The longest period of time during prenatal development is the -Period of the fetus - Third Trimester - Period of the embryo - Germinal Stage - Period of the zygote I believe the answer is period of the fetus.

74. ## novel

After the death of Curly in The Call of the Wild, Buck concludes that no fair play exists in his world and that he will never go down in a fight. The theme illustrated here is apparently derived from London's interpretation of

75. ## English

Parallelism can be defined as: a. clarifying main ideas through language choice and sentence structure. b. the process of revising two works simultaneously. c. varying the length and structure of sentences. d. using similar grammatical form for similar

76. ## Physics

A 7150 kg truck traveling east at 5 m/s collides with a 1650 kg car traveling 30 degrees south of west at 20 m/s. After the collision at what angle do the two vehicles move. Express you answer in degrees from the positive x-axis. Use a coordinate where

77. ## Physics

The carbon isotope 14C is used for carbon dating of objects. A 14C nucleus can change into a different kind of element, a neighbor on the periodic table with lower mass, by emitting a beta particle – an electron or positron – plus a neutrino or an

78. ## Forensic Science

If there are 45 drops of alcohol/mL, and the density of alcohol is 0.789 g/mL, what is the blood alcohol concentration of your unknown sample?

79. ## math

the battery lifetime is normally distributed for large samples with a standard deviation of 70 days. if 16% of the batteries have a lifetime of 850 or higher, what is the average battery life?

9. As you're revising an essay, you write down several sentences to describe your intended readers. Why should you do this? To make sure you're writing what you know, not what you believe B. To ensure that you're instructing your audience adequately C. To

81. ## English

The MLA format for citing an entire website includes A. an article title. B. source from which you found the website. C. electronic publication information. D. author's apparent credibility.

82. ## Physics

Suppose at one point along the Nile River a ferryboat must travel straight across a 1.29-mile stretch from west to east. At this location, the river flows from south to north with a speed of 2.58 m/s. The ferryboat has a motor that can move the boat

83. ## College Chemistry

the acid dissociation constant for acetic acid is 1.85x10^-5. Calculate the pH at the equivalent point and the pH at one-half the equivalence point for the titration of 25.00 mL of 0.100 M acetic acid with 0.100 M NaOH?

84. ## algebra 2

Find the slope of the line passing through the points (3, -1) and (0, 8)

85. ## Chemistry

In a coffee-cup calorimeter, 1.50 g of NH4NO3 is mixed with 72.0 g of water at an initial temperature of 25.00°C. After dissolution of the salt, the final temperature of the calorimeter contents is 23.65°C. Assuming the solution has a heat capacity of

86. ## math

Tickets to a concert cost \$12 for kids and \$15 for adults. A total of 300 tickets were sold and total receipts were \$4140. How many were adult tickets and how many kids?

87. ## PHYSICS

A ball is shot upwards with an initial speed of 31 m/s. While it is in the air it experiences a constant downwards acceleration of 10 m/s2. Find its velocity 1, 2, 3, and 4 seconds after being released.

88. ## Chemistry

2NaN(3) > 2 Na +3N(2) What mass of sodium azide must be reacted to inflate and air bag to 70.0 L at STP?

89. ## Physics

A 55-kg soccer player jumps vertically upwards and heads the 0.45-kg ball as it is descending vertically with a speed of 29 m/s. If the ball is in contact with the player's head for 16 ms, what is the average acceleration of the ball? (Note that the force

90. ## chemistry

1.00 of an aqueous solution contains 1.52g of a compound used in antifreeze. If the osmotic pressure of this solution at 20.0 degree C is 448 torr, calculate the molar mass of the antifreeze compound

91. ## chemistry

calculate the vapor pressure of a solution 0.53 mol of cholestrol in 4.1 molof toluene at 32 degree C. pure toluene has a vapor pressure of 41 torr at 32 degree C

92. ## math-algebra 1

At 8am, Minnie Mouse leaves home driving 35 mph. A half hour later Mickey Mouse drives 50 mph to catch up to her. If Mickey Mouse is delayed 15 minutes with a flat tire, at what time will he catch up to Minnie Mouse

93. ## Chemistry

A set of bookshelves rests on a hard floor surface on four legs, each having a cross-sectional dimension of 2.7 5.2 cm in contact with the floor. The total mass of the shelves plus the books stacked on them is 246 kg. Calculate the pressure in pascals

94. ## physics

An archer shoots an arrow horizontally at a target 13m away. The arrow is aimed directly at the center of the target, but it hits 57cm lower. What is the initial velocity?

95. ## social studies

With the vital assistance of _______, Theodore Roosevelt established the first comprehensive national conservation policy

96. ## math

Fifteen (y) less than. Negitive five Solve for y

97. ## earth

3. Show how the length of day changes with latitude by plotting the following points. Use the table below as a graph and place an X in the box where you want to plot a data point. For example, if you find that a day is 10 hours long at 30° N latitude,

98. ## Math

Determine each tangent ratio to four decimal places using a calculator. A) tan 74 degrees B) tan 45 degrees C) tan 60 degrees D) tan 89 degrees How do I figure this out !?