# Connor

1. ## Science

Where did the scientists initially get information to develop the geologic time scale
2. ## math

A plane is flying due east at 600 km/h at a constant altitude. From an observation point P on the ground, the plane is sighted on a bearing of 320◦. One minute later, the bearing of the plane is 75◦ and its angle of elevation is 25◦. Show that the
3. ## geometry

A pencil box has a length of 10 inches and a volume of 64 cubic inches. A similar pencil box has a volume of 512 cubic inches.
4. ## Math

Says to write a variable expression. An auto repair bill is \$220 for parts and \$45 for each hour of labor. If h is the number of hours of labor, express the amount of the repair bill in terms of the number of hours of labor. Please help I really don't
5. ## History

Hello, just got a sheet that has a couple problems regarding European Medieval history. One of them is to fill out a pyramid hierarchy of the following classes: serfs, nobles, clergy, merchants, monarchs, artisans, and knights I've been looking over the
6. ## History

Hello, just got a sheet that has a couple problems regarding European Medieval history. One of them is to fill out a pyramid hierarchy of the following classes: serfs, nobles, clergy, merchants, monarchs, artisans, and knights I've been looking over the
7. ## AP Physics

The length of the cannon barrel is 1.7 m and the cannon is aimed at a 38◦angle from the ground.The acceleration of gravity is 9.8 m/s^2. If Dread Pirate Roberts tells you he wants the ball to leave the cannon with speed V-not = 76 m/s, what mass cannon
8. ## Math

A standard football field is 100 yards long and 53 1/3 yards wide. A quarterback is standing on the 25 yard line, 25 yards from the left sideline, throws the ball to a receiver who is on the 35 yard line, 5 yards from the right sideline, as shown in the
9. ## Science

I am doing an extension to get into the AP Biology course offered by my school. This particular extension asked me to use vinegar and baking soda aswell as some basic scientific tools to find the concentration of acetic acid in vinegar. I wanted to know
10. ## Math

*Edited* (thanks Alex!) In a class, 4/5 of the girls have brown hair. Of the brown-haired girls, 3/4 of the have long hair. Of the girls with long brown hair, 1/3 of them have green eyes. Question: What fraction of the girls in the class have long brown
11. ## math

In a class, 4/5 of the girls have brown hair. Of the brown-haired girls, 3/4 of the have long hair. Of the girls with long brown hair, 1/3 of them have green eyes.
12. ## Math

Robert took a math test and got 36 out of 50 correct. What is the percentage of correct answers?
13. ## Tagwi

If a glass holds 2/3 cup of milk and a pitcher has 8 cups how many glasses can be filled from the milk in the jug
14. ## History!

During the late 1800s, what were the major characteristics of the East and the West?
15. ## Chemistry

3.90g sample of Al with an unknown initial temperature is dropped into 10 mg of water at 22.6 degrees Celsius. What will the change in temperature be of the Al if its final temperature is 28.6 degrees Celsius?
16. ## math

7=-2/v+4 solve for v
17. ## physics

a ball tossed up at a rate of 8.7 ms/ and catches the ball at the same place on the way down. How long was the ball in the air?
18. ## Geometry

What is the Midpoint of CD given the coordinates C(-4,8) and D(8,-4)?
19. ## English

Which sentence is punctuated wrong. Who borrowed Celeste biology books? Who borrowed Celeste's biology books? Who borrowed Celestes' biology books? Who borrowed Celestes's biology books?
20. ## Biology

Which organ systems help deliver oxygen to body cells? I think that its the enodcrine and lymphatic systems the other choices are A.respitory and excratory B.muscular and immune systems C.respiratory and circulatory systems
21. ## English

18. Identify the sentence that relies most strongly on emotional language. A. If this project isn't successful, you will receive a low grade. B. If this project does not succeed, it will be on your head. C. You will be held responsible if this project does
22. ## English

Which of the following is used when a political activist reminds others of the trials and tribulations facing the nation if change does not occur? A. ethos B. pathos C. logos
23. ## English

Identify the sentence in which the underlined pronoun is used incorrectly. A. There are only six days left in the school year. B. It will be fun to visit their house in the summer. C.Their just going to have to wait to see the movie. D. Greg refused to go
24. ## calculus

A cattle rancher wants to enclose a rectangular area and then divide it into six pens with fencing parallel to one side of the rectangle (see the figure below). There are 540 feet of fencing available to complete the job. What is the largest possible total
25. ## Math

Hi, thanks for help in advance. Using the Equation: f(w) = 10/w - 0.77ln(w) – 3.2 How do i use Newton-Raphson iterative to find the required value of w correct to 3 significant figures, starting from w0 = 3. Thanks
26. ## Math

Train A leaves Tigerville at 9 am traveling east at 85 mph. Train B leaves Liontown at 9:20am travelling west at 60 mph on the exact same tracks. Tigerville and liontown are 154 miles apart. At what time will the trains meet?
27. ## Algebra

Train A leaves station at 9am traveling east at 85 mph. Train B leaves station at 9:30 am traveling west. Both train are on the same track. At what time will they meet?
28. ## physics

There are two pit balls equally charged and each with a mass of 1.5g. While one ball is suspended by a thread, the other is brought close to it and state of equilibrium is reached. In that situation,the two balls are separated by 2.6cm and the thread
29. ## Pre-Calc

At a swim meet, a parent is videotaping his son from a seat in the stands that is 20 meters past the starting line and 8 meters away from his son's lane. Let x represent the distance the son has swum. a. Write x as a function of (theta). b. At what angle
30. ## Science

What volume of 0.050M sodium hydroxide is needed to react with 25cm3 of 0.068M ethanoic acid?
31. ## Geography

How has mexico's culture been shaped by conflict among other people?
32. ## Math

A photocopy was made of Julie's watercolor painting. the photocopy resized the painting so that it measured 4 inches wide by 7 inches long. If the actual painting is 16 inches wide, what is the length?
33. ## Calculus

A marble is dropped from the top of the empire state building. a. Determine the position and velocity functions for the marble b. What is the average velocity for the first 3 seconds of flight? c. Whatisthespeedofthemarblewhent=0? t=3? t=6? d. How long
34. ## Calculus

Joshua jumps from a platform diving board that is 32 feet above the water. The position of the diver can be modeled by s(t) = -16t2+16t+32, where s is his position and t is the seconds that have gone by since he jumped. When does the diver hit the water,
35. ## Statistics

12 cards are drawn with replacement from an ordinary deck of 52 cards. What is the probability that 4 queens of hearts, 4 aces of spades, and 4 kings of clubs are drawn?
36. ## Statistics

If P(A/B)=1 must A=B?
37. ## Differential Equations

Classify the following differential equations as linear or nonlinear: 3x' +5x=7t^2 4x^2+2x+5tx=0
38. ## math

James swims 3/4 miles 5 times a week. How far does he swim in one week.
39. ## Chemistry

Benzene has a heat of vaporization of 30.72kJ/mol and a normal boiling point of 80.1 ∘C. At what temperature does benzene boil when the external pressure is 480torr ?
40. ## Math

Find the number of elements in A1∪A2∪A3, supposing that there are 103 elements in A1, 992 elements in A2, 10011 elements in A3, in each of the following situations: (a) The sets are pairwise disjoint, that is, no pair has common elements, that
41. ## Chemistry

A 2.6 g of a substance that looks like gold needed 9.4 J of heat energy to raise its temperature from 20 to 38 ºC. Is the metal pure gold?
42. ## Math/Science

An ocean liner is traveling at 5m/s. A passenger on deck walks towards the rear of the ship at a rate of 4m/s. After walking 30 meters, he turns right and walks at a rate of 4m/s to the rail, which is 12 meters from his turning point. What is his velocity
43. ## Chemistry

FeCl3(aq) + K2S(aq) Fe2S3(aq) + KCl(aq) Consider the unbalanced equation above. What is the maximum mass of Fe2S3 that can be produced when 54.5 mL of 0.480 M FeCl3 and 98.5 mL of 0.420 M K2S react?
44. ## Chemistry

C2H6(g) + O2(g) CO2(g) + H2O(g) (a) Consider the unbalanced equation above. What is the maximum mass of CO2 that can be produced when 21.0 g of C2H6 and 38.5 g O2 react? (b) If 24.7 g of carbon dioxide is actually produced by the reaction in part (a), what
45. ## Chemistry

What is the maximum mass of the lower molar mass product that can be formed when 83.0 g of solid barium bromide and 20.5 g chlorine gas react?
46. ## Chemistry

Al(s) + HCl(aq) AlCl3(aq) + H2(g) Zn(s) + HCl(aq) ZnCl2(aq) + H2(g) Consider the unbalanced equations above. A 0.200 g sample of a mixture of aluminum and zinc metal is reacted with an excess of hydrochloric acid. Both metals react with hydrochloric acid.
47. ## Physics

A fireworks rocket is moving at a speed of 48.4 m/s. The rocket suddenly breaks into two pieces of equal mass, which fly off with velocities v1 and v2, as shown in the drawing. What is the magnitude of (a) v1 and (b) v2? In the image the two pieces are

49. ## Physics

A young woman named Kathy Kool buys a sports car that can accelerate at the rate of 4.53 m/s2. She decides to test the car by dragging with another speedster, Stan Speedy. Both start from rest, but experienced Stan leaves the starting line 1.01 s before
50. ## Algebra

Solve for M: 3P = 12C + 10MC
51. ## Algebra

y = ax, has asymptote ________ and y-intercept ________.
52. ## Chemistry

for the reaction 2NaOH + h2SO4 yieda 2H2O + Na2SO4 if .80 moles of NaOH are used, how many moles of H2SO4 must be used?
53. ## Chemistry

For a particular redox reaction NO2– is oxidized to NO3– and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in basic solution. Phases are optional.
54. ## Chemsitry

For a particular redox reaction NO2– is oxidized to NO3– and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in basic solution. Phases are optional.
55. ## science

What is the formula for friction force
56. ## turnford

prove the following 2 cosec 2θ cos2θ = cotθ - tanθ
57. ## turnford

prove the following 2 cosec 2θ cos2θ = cotθ - tanθ

Will somebody please help or translate these. Thank You 4. Which expression is used to talk about what you have just done? venir de hacer la tarea hacer un viaje acabar de 5. Vengo de la clase. ¿Qué acabo de hacer? Acabas de bailar. Acabas de bailas.
59. ## physics

a plane flys 350 km south along a straight path with an average velocity of 125 km/h to the south. the plane has a 30 minute layover and then travels 220 km south with an average velocity of 115 km/h to the south. what is the average velocity of the trip
60. ## Accounting

When calculating the times interest earned ratio, you you include "interest expense on debt extinguishment" in the interest expense? Thanks!
61. ## English

Create a Halloween story by filling in the blanks with adjectives. Remember adjectives are words that describe or tell about nouns. The words in () is my adjective answer I used. You Cannot use an adjective more than once The ____(full) moon was shining
62. ## Physical Science

You submerge 100 grams of steel in 200 grams of water. If the steel has an initial temperature of 80°C and the water has an initial temperature of 10°C, what is the final temperature of the system? The specific heat capacity of the steel is 0.15
63. ## Math

What are the base-five numbers for the base-ten counting numbers 1 to 26?
64. ## arithmetic

How is eight hundred twenty-six thousandths written in decimal form?
65. ## Economcis

Is GDP calculated by the price of the good with the indirect tax or the price of the good before the indirect tax? For example, if an economy only produces a single \$10 good and it is taxed 10%, is GDP \$10 or 11\$? Thanks!!!
66. ## Chemistry

How many milliliters of an aqueous solution of 0.219 M magnesium bromide is needed to obtain 10.1 grams of the salt ?
67. ## Dynamics

The rotor is an amusement park ride where a person enters the Rotor when it is stationary and stands against the wall with their back against the wall. The rotor then begins to spin around a vertical axis. After reaching cruising speed, the floor drops
68. ## Chemistry

Mg +2HCL = MgCl2 +H2 what mass of hydrogen is obtained by adding excess hydrochloric acid to 6g of magnesium
69. ## 10th grade honors chemistry

1.3 pounds of a material with a density of 3.7 g/mL would occupy what volume in liters?
70. ## math

the following all-red train and all-green train are equal in length. Do these trains give information about common factors, common multiples, or both?
71. ## basic calculus

use the first and second derivatives to find the x-coordinates of all local maxima and minima of f(x)=8e^2x-2x. indicate which of your answers are local minima and which are local maxima.
72. ## college algebra

1/2 log 25- 3 log x
73. ## Spelling

Can anyone tell me the meaning of the word bade? Example for this sentence:The next morning John got up early and bade Rover goodbye.
74. ## Math

There's a triangle the numbers on each sides are 22 25 and 11 What is it's perimeter and area? Answer: P is 58 A is 345 There's a rectangle the numbers on 2 of the sides says 4 and 1 What is the Perimeter and area? Answer: P is 10 and A is 4 There's a
75. ## Math.

On finding a perimeter and area and there is a decimal for the shape but the 2 other numbers on the shape don't. Do I multiply/add with the decimal on all numbers or only on that 1 number? EXAMPLE There is a triangle one side is 1.5 the base is 2 and the
76. ## Math

On finding a perimeter and area and there is a decimal for the shape but the 2 other numbers on the shape don't. Do I multiply/add with the decimal on all numbers or only on that 1 number? EXAMPLE There is a triangle one side is 1.5 the base is 2 and the
77. ## Math

The size of houses and buildings are measured in square feet. If you measured the outside length and width of a house and found the length was 60ft. and the width was 30ft., what is the size of the house in square feet? 60x30 and I got 1800ft
78. ## Math

All these are either rectangles or squares 1.Rectangle. 5 is length and 10 is width 10x5=50 2.Square. 5 is length and 5 is width 5x5=25 3.Rectangle. 6 is length and 8 is width 8x6=48 4.Square. 10 is length and 10 is width 10x10=100 5.Rectangle. 40 is
79. ## Triangles/Math

All of these are triangles Find the areas of the triangles 1. 8 is base and 5 is height A=bxh divided by 2 8x5=40 divided by 2=20 2. 6 is base and 7 is height A=bxh divided by 2 7x6=42 divided by 2=21 3. 12 is base and 5 is height A=bxh divided by 2
80. ## ELA

Reread the Preamble. Then rewrite it in common, everyday language. We the people of the United States, in order to form a more pefect Union, establish justice, insure domestic tranquillity, provide for the common defense, promote the general welfare, and
81. ## Math

Find the perimeter of each rectangle or square. L=length W=width L=45 W=20 45+45+20+20=130 Correct??
82. ## Math

Find the perimeter of each rectangle or square. s=sides s=34 I think the shape is the square cause the square has all even sides so 34x4=136 Is this correct?
83. ## Math

There's a rectangle. On 1 side is 8 which is the Length side I have to find out how long the width side is. The whole perimeter has to equal 25 P=25 So if both length sides are 8 then that equals 16. Now I have to see how much both width sides are I did
84. ## Math

There's a square. On 1 of the sides it's 8.4 What is the perimeter? I got 33.6 cause on each side of a square is the same size so 8.4x4=33.6 Is this correct?
85. ## Math

There is a picture of a hexagon On 1 of the sides it says 3.2 What is the perimeter? I got 19.2 cause on hexagons there is 6 sides and all of them are even so 3.2x6=19.2 Is this correct?
86. ## physics

A skier of mass 54.6 kg comes down a slope of constant angle 21◦ with the horizontal. The acceleration of gravity is 9.8 m/s2 . What is the force on the skier parallel to the slope? Answer in units of N
87. ## physics

A skier of mass 54.6 kg comes down a slope of constant angle 21◦ with the horizontal. The acceleration of gravity is 9.8 m/s2 . What is the force on the skier parallel to the slope? Answer in units of N
88. ## physics

A skier of mass 54.6 kg comes down a slope of constant angle 21◦ with the horizontal. The acceleration of gravity is 9.8 m/s2 . What is the force on the skier parallel to the slope? Answer in units of N
89. ## physics

a man applies a force of 220 N horizontally to the right against a 50 kg crate. the force of friction between the crate and the floor is 200 N. if the crate is pushed 2.0 m, the work done is.... What formula would be applicable?
90. ## physics

a 25kg object moving with a velocity of 3m/s to the right collided with a 15 kg object moving to the left at 6 m/s. determine the velocity of the 25kg object after the collision if 15kg object a. continued to move to the left, but only at .3m/s b.
91. ## math

only 40% of people between the ages of 18 and 24 read the newspaper. what % of people reads the newspaper?
92. ## scientist

How do I turn up the sound on a stereo without turning the volume button up?
93. ## algebra II

Select the best possible first step to solving the system by first eliminating the y variable. x + 8y = –4 2x – 4y = –13 Multiply the first equation by 2. Multiply the second equation by 2. Multiply the first equation by –2. Multiply the second
94. ## math-Probablity

Hi, just a few stupid questions about probability. 1. How many different license plates can there be if there is a total of 7 letters (no numbers) (and I'm assuming this has a something to do with permutation. 2. How many different batting line ups can be
95. ## world history

explain why it was difficult for Great Britain to control the New England colonies
96. ## Math

ln(x+3) + ln(x+4) = 3ln2
97. ## Math (Trig.)

A boat sailing from A to B travels in a straight line until the captain realizes he is off course. The boat is turned through an angle of 60 degrees, then travels another 10 km to B. The trip would have been 4 km shorter if the boat had gone straight from
98. ## global studies

How does geography affect the history of a nation?