Posts by Shannon

Total # Posts: 535

Trigonometry
How do you simplify: (1/(sin^2x-cos^2x))-(2/cosx-sinx)? I tried factoring and creating a LCD of (sinx+cosx)(sinx cosx) (cosx-sinx), but cannot come up with the right answer. The answer is (1+2sinx+2cosx)/sin^2x+cos^2x,but I don't know how the book arrived at that answer. I...

statiictis
DJ Jacqueline is making a playlist for an mp3 player; she is trying to decide what 12 12 songs to play and in what order they should be played. If she has her choices narrowed down to 21 blues, 13 reggae, and 25 hip-hop songs, and she wants to play an equal number of blues, ...

Math
Untitled Stem and leaf plot. Vertical line separates each stem number from its first leaf number. First row. Stem 2. Leaves 6, 7, 7. Second row. Stem 3. Leaves 0, 2, 3, 3, 4. Third row. Stem 4. Leaves 0, 5. Key. 3 vertical line 0 means 30. What is the median of the data in ...

Math
A zoo measured the wingspan, in millimeters, of 9 butterflies. 55 50 54 57 50 55 53 52 55 What is the median length of the wingspans? 50 mm 54 mm 55 mm 57 mm I think it is 54 mm.

Trigonometric Identities
Triangle ABC is given where angle A=33 degrees, a=15 in., and the height, h, is 9 in. How many distinct triangle can be made with the given measurements. Please explain your answer

Statistics
Childhood participation in sports, cultural groups, and youth groups appears to be related to improved self-esteem for adolescents (McGee, Williams, Howden-Chapman, Martin, & Kawachi, 2006). In a representative study, a sample of n 5 100 adolescents with a history of group ...

Social studies
I need a copy of week 16 newspaper

Science
How many molecules are in C6H12O6 or glucose?Need the answer by Feb-1-17. Thanks

Math
5 2/3 - 5= 2/3. Use a division algorithm to find the quotient. State the final answer as a mixed number. Why is the fractional part of your quotient different from your answer in the original equation 5 2/3 - 5= 2/3?

Math
The weights of all one hundred (100) 9th graders at a school are measured, and it is found that the mean of all the measurements is 100 lbs., with a standard deviation of 15 lbs.   Explain how you would use this information to determine the percentage of students who...

programming
1. The attached bombs.zip file contains 19 bombs. These bombs have been numbered and every one needs to break only one. The assignment is as follows. For example, student 191464104 needs to break binaryBomNo.2.exe. You need to find out the 6-digit password of your bomb. bomb ...

Math
5 6 15 9=24 I am trying to determine what symbol I need between each number to make the sentence true. +, - X or / I am not clear if I can use the same symbol multiple times in the equation

US history
What challenges did William Taft face as president? Heard he was one of the worst presidents, just didn't know why...any info would be helpful!

Microbiology
The presence of (cocci/diplococci/coccobacilli/streptococci) in the CSF is consistent with infection with Listeria monocytogenes. (Describe the appearance of the cells.)

math
A necklace is made up of 50 spherical beads. Each bead has a radius of 8 millimeters. What is the volume of the necklace? What is the surface area?

life orientation
how does beliefs and opinions violation influence broader south African community

Math: Statistics
I am trying to report significant data but I'm not sure how to write it out professionally. I did two nominal variables in a chi square test on SPSS. The significance I found is .061 across from "Likelihood Ratio" and under "Asymp sig. 2 Sided". Does ...

Microbiology
Assembly of enveloped viruses requires (membrane/matrix/receptor) to bring together the nucleocapsid and the envelope.

algebra
Find the point-slope form of the line that passes through given the point and has the given slope.Include your work in your final answer. Type your answer in the box provided or use the upload option to submit your solution. (0, 0) m = 2

math/algebra
Solve the polynomial inequality and graph the solution set on a real number line. Express the solution set in interval notation x^3+x^2+16x+16>0 What is the solution set? (Type your answer in interval notation.) shannon

Math
It didn't say what the time limit was

Math
During your first week of training for a marathon, you run a total of 10 miles. You increase the distance you run by twenty percent. How many miles do you run during your twelfth week of training?

science
it repels heat

Math

English
In which of the following sentences is the word down used as an adverb

Math
If a recipe calls for 2/3 cup flour and I am making 1/2 how much flour would I need?

science

Geometry
A boat left dock A, traveled north for 10 miles, then 45 East of north for 20 miles and docked at B. A.How far north did the boat travel? How far east did it travel? B. Find the magnitude and direction of the direct-path vector AB. a. North 24.1 East 14.1 b. 22.4 magnitude 45 ...

Math
A giraffe is 18 feet tall. How tall is the giraffe in inches?explain how you determined your answer.

Trigonometry
Use trig form to find quotient 3/(2+3i)

Trigonometry
Law of Cosines a=4.7 b=3.2 c=5.2 Find B

Trigonometry
A plane flies 510 kilometers with a bearing of N43 degrees W from airport B to airport C. The plane then flies SW 790 kilometers from C to A which is due west of B. Find bearing of flight from C to A.

Math
Thank you so much! I'll be sure to write down the formula for the future!

Math
Yes-Sorry for the long delay! I assume I would multiply my answer by 100-but I'm not sure.

Math
The 200 shares of General Mills stock bought at \$384.38 were sold at \$350. Commission is omitted. What would be the loss? I'm really confused here. I thought I would subtract the two numbers featured above to get the loss. Is there a specific formula I have to use? If so-...

AP CHEM
I have multiple... 1) If a metal ore contains 23.1% pure metal, how many pounds of pure metal can be obtained from 38 pounds of metal ore? Answer in units of pounds. 2) For the reaction 3 F2 + Cl2 → 2 ClF3 , what is the maximum amount of ClF3 (92.4482 g/mol) which could ...

chemistry
Nitrobenzene, C6H5NO2, is prepared from benzene, C6H6, and nitric acid, HNO3. The other product of the reaction is water. When 22.4 g of benzene is reacted with an excess of nitric acid, 31.6 g of nitrobenzene is produced. What is the percent yield for this reaction?

physics
A novice golfer on the green takes three strokes to sink the ball. The successive displacements are 3.6 m to the north, 2.8 m 45◦ north of east, and 2.2 m 59◦ west of south. Starting at the same initial point, an expert (lucky) golfer could make the hole in a ...

Maths
What number am I? I am a multiple of 3 I am also a multiple of 7 My units digit is half my tens digit

College Chemistry
The specific heat of a certain type of cooking oil is 1.75 cal/(g·°C). How much heat energy is needed to raise the temperature of 2.83 kg of this oil from 23 °C to 191 °C?

College Chemistry
When one mole of C6H6 is burned, 3.27 MJ of heat is produced. When the heat from burning 5.43 g of C6H6 is added to 5.69 kg of water at 21.0°C, what is the final temperature of the water?

Statistics
Please Help me understand how to work this problem. I have been working on this problem for several days and do not understand what to do. Suppose IQ scores were obtained from randomly selected twins. For 20 such pairs, of people the linear correlation coefficient is 0.922 and...

Language Arts
are these right

geometry
what is the formula for the volume of a cube? and: what is the formula for the surface area of a cube?

University of North Texas
A manufacturer ships toasters in cartons of 25. In each carton, they estimate a 8% chance that one of the toasters will need to be sent back for minor repairs. In a batch of 12,000 toasters, what are the chances that fewer than 950 need to be returned?

Math
Marco is making a scale model of a building. The building has a round deck at the bottom with a diameter of 120 meters. What should the diameter of the deck in the scale model be if Marco wants the circumference to be 1/40 actual size?

physics
Boxes are moved on a conveyor belt from where they are filled to the packing station 12.0 m away. The belt is initially stationary and must finish with zero speed. The most rapid transit is accomplished if the belt accelerates for half the distance, then decelerates for the ...

Physics
Calculate the electric force between these two electrons. The value of the Coulomb constant 9 × 109 N · m2/C2 and the elemental charge is 1.6×10−19C. Answer in units of N (Newtons)

algebra
-4 x 4 = -16

AP Chemistry
To have a buffer with a pH of 2.50, what volume of 0.510 M NaOH must be added to 100. mL of 0.230M H3PO4?

Chemistry
4 Oxygen x 3 = 12 in one molecule 12 x 6 molecules = 72 atoms of O

Chemistry
a heterogenous mixture

algebra
Solve the system of linear equations by graphing 3x+y=0 2x-y=5 Graph the system What is the solution of the system of equations?

CHEMISTRY
HOW MANY MOLES OF SILVER IODIDE COULD BE PRODUCED IF THIS REACTION WAS STARTED WITH 4.3 MOL IODINE AND AN EXCESS OF SILVER?

CHEMISTRY
HOW MANY MOLES OF SILVER IODIDE COULD BE PRODUCED IF THIS REACTION WAS STARTED WITH 4.3 MOL IODINE AND AN EXCESS OF SILVER?

Algebra 2
for the first part I have 10(2)^14-1 and on the 14th day he'll run about 15.5 miles, but what about the second part

Algebra 2
D'Andre has decided that he needs to get more exercise, so he is building a running regimen for himself. He decides that, beginning on Sunday, he'll fun 10 feet. On each subseqeunt day he'll double the distance he ran the previous day. So he'll run 20 feet on ...

math
If a recipe calls for 2/3 cup flour and I am making 1/2 how much flour do I need?

chemistry
what mass of Silver oxide would be required to produce 100.0 g. of silver.

math
Jamiebeatimates that,when he arrives at work tomorrow morning,there is a probability that 0.4 that he will find a convenient parking space. What is Jamie to say? A. It is very unlikely that he will find a convenient parking space. B.it is somewhat unlikely that he will find a ...

Science
Describe genetic engineering on a cellular level. In other words, what exactly takes place during genetic engineering that inserts a trait into an organism that did not have that trait before? Give an example

geometry
A rectangle has a side whose length is 5 and a diagonal whose length is √74. What is the area of the rectangle?

Algebra
A community college campus plans to construct a rectangular parking lot on land bordered on one side by a highway. There are 640 feet of fencing available to fend the other three sides. Let x represent the length of each of the two parallel sides of fencing. a) Express the ...

physics
A car is traveling at 58.2 km/h on a ﬂat highway. The acceleration of gravity is 9.8 m/s2 . If the coeﬃcient of friction between the road and the tires on a rainy day is 0.155, what is the minimum distance in which the car will stop?

Anatomy
Graded potentials are: arise when ion movement causes a minor change in the resting membrane potential. usually propagate down the length of an axon. occur when voltage-gated channels open. are most often observed in axons. are usually associated with ion movement through ...

Anatomy
Graded potentials: arise when ion movement causes a minor change in the resting membrane potential. usually propagate down the length of an axon. occur when voltage-gated channels open. are most often observed in axons. are usually associated with ion movement through leakage ...

English for Fernanda
I need all the answers u have for this exam 986011

Wording/Vocab
No, the words means, "b : to make perfect. c : achieve. 2 : to make (marital union) complete by sexual intercourse <consummate a marriage> intransitive verb."

College Physics
Two crates are connected by a massless rope that passes over a pulley. If the crates have mass 33 kg and 82 kg, find their acceleration. If the system begins at rest, with the more massive crate a distance 12 m above the floor, how long does it take for the more massive crate ...

College Physics
A hockey puck is sliding down an inclined plane with angle θ = 12.4° as shown in the figure below. If the puck is moving with a constant speed, what is the coefficient of kinetic friction between the puck and the plane?

College Physics
There are two forces acting on an object. One force has a magnitude of 35 N and is directed along the +x axis. The other force has a magnitude of 20 N and is directed along the +y axis. What is the direction of the acceleration of the object? Express your answer by giving the ...

College Physics
A skier is traveling at a speed of 39.7 m/s when she reaches the base of a frictionless ski hill. This hill makes an angle of 14° with the horizontal. She then coasts up the hill as far as possible. What height (measured vertically above the base of the hill) does she reach?

Physics
Human feet and legs store elastic energy when walking or running. They are not nearly as efficient at doing so as kangaroo legs, but the effect is significant nonetheless. If not for the storage of elastic energy, a 70.0-kg man running at 4.00 m/s would lose about 100 J of ...

Critical Thinking
What is the premise, conclusion, assumption and counter argument if applicable. I guess Thork doesn’t have a thing to do. Why else would he waste his time watching daytime TV? Premise: Thork doesn’t have anything to do. Conclusion: Thork is watching daytime TV. ...

Physics
A Nile cruise ship takes 21.7 h to go upstream from Luxor to Aswan, a distance of 208 km, and 20.3 h to make the return trip downstream. Assuming the ship's speed relative to the water is the same in both cases, calculate the speed of the current in the Nile.

Physics
An arrow is shot into the air at an angle of 59.4° above the horizontal with a speed of 20.0 m/s. What is the x-component of the velocity of the arrow 3.30 s after it leaves the bowstring? What is the y-component of the velocity of the arrow 3.30 s after it leaves the ...

Physics
A particle's constant acceleration is north at 108 m/s2. At t = 0, its velocity vector is 62.8 m/s east. At what time will the magnitude of the velocity be 118 m/s

Geometry
Three different people are to be selected at random, and each will be given one gift card. There is one card from Home Depot, one from Best Buy, and one from Red Lobster. The first person selected gets to choose one of the cards. The second person selected gets to choose ...

math
Suppose that the height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning. After hours of burning, a candle has a height of centimeters. After hours of burning, its height is centimeters. What is the height of the candle ...

science
its is A

statistics
UGH! The table is not copying correctly when I post the question. Like Dogs on top horizontal axis Like cats on Vertical axix Yes No under Like dogs Yes No under Like cats yes 194 21(under no on liking dogs) no 110 10

statistics
All that was given to me was this table: Like Dogs Yes No Like Cat YES 194 21 No 110 10

statistics
Table: Like Dogs Yes No Like cats Yes 194 21 No 110 10 For parts a-d give a fraction and % for answer. A.What % of all students like dogs? B. What % of students in the entire class like dogs and cats? C. What % of students who like cats like dogs? D. What % of students who do ...

Chemistry
Nevermind. They were also converting natural log to log10.

Chemistry
At 25 C, RT/F = (8.314 J/mol/K *298 K) /(96500 C/mol) =0.0257 volts. My textbook lists 0.0592. What am I doing wrong?

Chemistry
Write the balanced net ionic equation for the following? a) Copper metal and zinc ion b) zinc and cupric ion c) Copper metal and hydrogen ion d) zinc metal and hydrogen ion e) iron metal and hydrogen ion f) Chlorine (Cl2) and bromide ion (Br-) g) Chlorine (Cl2) and iodide ion...

Social Studies
i say water too

statistics
Assuming that the distribution is normal for weight relative to the ideal and 99% of the male participants scored between (–53.68, 64.64), where did 95% of the values for weight relative to the ideal lie? R

Math
Two friends cut a large candy bar into equal pieces Harriet ate 1/4 of the pieces nisha ate 1/2 of the remaining pieces 6 pieces were left over how many pieces was the candy bar originally divided into

Physics
A block of mass 21.0kg kg slides down a frictionless surface inclined at 33 ∘ ^\circ.To ensure that the block does not accelerate, what is the magnitude of the smallest force that you must exert on it?

physics
A figure skater pushes off from rest and glides along a circular path, the radius of which is 3 times her height. What must be her minimum initial velocity in order to come full circle without having to push off a second time?

math
The question is a real-life question.

math
A figure skater pushes off from rest and glides along a circular path, the radius of which is 3 times her height. What must be her minimum initial velocity in order to come full circle without having to push off a second time?

math
how wide is a rectangular table with a length of 2/3 yard and an area of 1/2 square yard

English
I think I get want to write now. Thanks!

English
My essays on giving people second chances.

English
What should the warrant be about in a argumentative essay?

Chemistry 12
Given the following [H3O+] or [OH-] and the concentration of the solution calculate the dissociation constant, Ka. [OH-] = 3.9 x 10^(-9) M, with a concentration of 0.50M Answer:1.3 x 10^(-11) How do I get this answer?

algebra
Thank u...But how did u get the 162a+9b=.129??

algebra
An archer releases an arrow from a shoulder height of 1.39 m. When the arrow hits the target 18 m away, it hits point A. When the target is removed, the arrow lands 45 m away. Find the maximum height of the arrow along its parabolic path. please help!!I know my points are (0,...

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