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Posts by jessica

Total # Posts: 3,338

Trig
Jessica attains a height of 4.7 feet above the launch and landing ramps after 1 second. Her initial velocity is 25 feet per second. To find the angle of her launch, which equation can you use with the given information to solve for θ? (Answer: 1 or 2). Use the equation ...

Calculus
differentiate each function a) y = (cscx)(cotx) b) y = x^2 + e^(2x)

Calculus
Evaluate each limit. If it exists. a) Lim x^3 + 1 x->1 ------- x + 1 b) Lim 3x^2 - x^3 x->0 ---------- x^3 + 4x^2 c) Lim 16 - x x->16 --------- (√x) - 4

Reading
I need help with a assignment on a 150 to 300 words that summarizes the steps to be taken in the revision process.

Update Math Question
The area of triangle B is 64 times greater than the area of triangle A.The perimeter of triangle B is how many times greater than the perimeter of triangle A? how many times greater than the perimeter of triangle A? A. 8 times greater B.64 times greater C.128 times greater D....

Math
The perimeter of triangle B is how many times greater than the perimeter of triangle A?

Math
Rectangle ABCD is similar to rectangle EFGH. If rectangle ABCD has sides that are 7 times greater than those of rectangle EFGH, what is the relationship between the perimeters of the rectangles? A. The perimeter of rectangle EFGH is 7 times greater than the perimeter of ...

geometery
Rectangles ABCD and EFGH are similar. The perimeter of rectangle ABCD is 5 times greater than the perimeter of rectangle EFGH. What is the relationship between the areas of the rectangles?

math
A student notices that the shadows of a sign and a tree lie along the same line and end at the same point. The height of the sign is 3 feet. The length of the tree's shadow is 20 feet. The distance from the base of the sign to the vase of the tree is 16 feet. How tall is ...

Science
dna exists as _______ in cells with a______?

Math
1. Write the equation of a line in slope-intercept form that has a slope of -1/4 and passes through the point (8, -1).Do not use any spaces. Slope should be a reduced improper fraction. 2.Write the equation of a line in slope-intercept form that passes through the points ( -2...

Health
Is it B ms sue

physics
For long range communication an elephant uses a low frequency rumble that is undetectable to human ears. One elephant can pick up another elephant's call from a distance of 10 km. The frequency of this rumble is about 13 Hz. How fast does the rumble travel?

Math plz help
I need help I don't know how to begin the equation Michael purchased a certain number of share of one stock for a total of $2800. The second stock was selling for $6 less per share . Michael could have bought 6 more shares of the second stock for the same amount of money. ...

Business Finance
On May 12, Bob Campbell accepted a $5,000 note in granting a time extension of a bill of goods bought by Rick Ween. Terms of the note were 8% for 120 days. On July 8, Bob needed to raise cash and discounted the note at Rick's bank at a discount rate of 9%. Calculate Bob&#...

Business Finance
Jeff Jones earns$1200 per week. He is married and claims four withholding allowances. The FICArate is as follows 1.45%. To date his cumulative wages are $6000. Each paycheck, his employer also deducts $42.50 for health insurance. What is his net pay?

english11
journal about pirates

Chemistry
DrBob... Could you explain how you got negative...I thought E = reduced - oxidized E = 0.34 V - (-0.74 V) = 1.08 V

Physics
0.224468

math
The probability that a team will carry the puck over the opposing team's blue line is 0.6, the probability that they get a shot on the net is 0.3, the probability that they get a shot away and score is 0.01 and the probability that they cross the blue line and score is 0....

Nutrition
Read this summary and then answer the questions. This is Tyler's freshman year in college, and he has been earning good grades and performing well in his part-time job. However, Tyler's eating habits have been poor, and has gained a few pounds. His expanded waistline ...

math
terms are the numbers and their variable as if you just take the addition signs out so your terms would be -7x^3 6x^2 6x 9 hope this helps :)

medical terminology
I need the medical report written out,I don't know how to write it..

medical terminology
Making use of the following terms, write a fictitious medical report of about two paragraphs describing a dermatologic condition or disease. Focus the report on the onset, progression, location, and etiology of the condition or disease, and the treatment parameters. All terms ...

algebra
haley = h brother = b h < 2b incorperate your numbers 5 < 2b (this is the equation I would use)

Math
if it is a tank with 4 sides then you would simply do 6 multiplied by 40 which equals 240 and then multiple 240 by 4 which equals 960. 6 * 40 = 240 240 8 4 = 960 960 squared feet hope this helps :)

physics
A rope of mass 0.78 kg is stretched between two supports 31 m apart. If the tension in the rope is 1800.0 N, how long (in seconds) will it take a pulse to travel from one support to the other

geometry
If a circle has an area of 25 pi cm squared, find the circumference of the circle? a. 5 squared cm b. 10 squared cm c. 50 sqaurred cm d. 156.25 squared cm

Math 3
line equals (1,-3)

chemistry
For the strong acid solution 9.7×10−3 , determine (H3o+)and (OH-)

chemistry
For the strong acid solution 9.7×10−3 , determine (H3o+)and (OH-)

Algebra
Andrew measures the amount of a very unstable substance to be 100 moles. The half-life of this substance is 3 days (after 3 days, half is gone). Write an exponential function that models this situation where y is the amount of substance and x is time in days. Thank you for ...

Math :(
Thanks :)

Math :(
Gil rolls a number cube 78 times. How many times can he expect to roll an odd number greater than 1??

math
A baseball player reaches base 35% of the time. How many times can he expect to reach base in 850 at-bats?

math
Put 18/1 and then multiply 18/1 x 4/6= 72/6 and simplify to 12 :)

Science
C is correct :)

math
The side that connects all of the points is the base.

Science
Vanessa pushes a box with 50 N of force. The box accelerates 2 m/s2 for 10 seconds. What is the mass of the box?

Grade 8 Math
Double the sum of 5 and a number is 70

science
write a skeleton equation for this reaction hydrogen iodide(g)->hydrogen+iodide(G)

chemistry
A scuba diver takes a 2.3L balloon from the surface, where the pressure is 1.0atm and the temperature is 37degrees C, to a depth of 35m, where the pressure is 4.5atm and the temperature is 18degrees C.what is the final volume at this depth?

chemistry
How many grams of hydrogen are collected in a reaction where 1.80L of hydrogen gas is collected over water at a temperature of 40degrees C and a total pressure of 738torr?

Chemistry
A heliox deep-sea diving mixture delivers an oxygen partial pressure of 0.20 atm when the total pressure is 13.0atm .What is the partial pressure of helium in this mixture?

Physics
A rock is thrown horizontally off of a cliff. It starts with a velocity of 4.2 m/s and the cliff is 68.2 m high. How far out from the bottom of the cliff does the rock fall?  57m 59m  63m  45.8m 

english
What elements of the Restoration comedy are seen in The Importance of Being Earnest? (5 points)

english
The procession was temporarily abolished because of the emperor’s interest in _____ (1 point) A.wars. B.viands. C.bicycles. D.poisons.

Pre-Algebra
The grocery store sells kumquats for $4.25 a pound and Asian pears for $2 a pound. Write an equation in standard form for the weights of kumquats k and Asian pears p that a customer could buy with $12.

Basic Dressmaking Processes
You guys are awesome thank you so much !!! I got a 100 on my test thank you again

Enviro Science
#4: D because slippage makes a rumble and also creates a crack in the earth surface. :)

english
The procession was temporarily abolished because of the emperor’s interest in _____ (1 point)

Trigonometry
A ladder leaning against a building makes a 40 degree angle with the ground. The top of the ladder reaches 10 feet above the ground. How tall is the ladder to the nearest whole foot?

geometry
Hexagon A is a regular hexagon. The total length of all the sides of the hexagon is 24 inches. Hexagon A is dilated about its center to create Hexagon B. The length of each side of Hexagon B is inches. By what factor was Hexagon A dilated to create Hexagon B?

Math
Jnuary 1, 1990 was a Monday. What day of the week was february 1, 1990 ?

Math
Jan and Nika ride their bikes. Jan rides 5 miles per hour for 1 hour then rides at ten miles per hour for 30 minutes.Nika rides at a constant 8 miles per hour. the tripss cover the ssme distance. Forr hoew many minutes does Nika ride ?

American Government
Ms Sue can you still help me?

American Government
yeah that was good... thank you.. can you help me with number 2?

American Government
Thats the problem, I don't know how to do it.

American Government
1. Justice Stephen Breyer stated, “people need to understand the importance of the Court as an institution, even though the Court’s decisions may at times be unpopular and possibly wrong,” Explain how this statement relates to the concepts of “Judicial ...

American Government
I know I tried but I can't get it together...

American Government
Its supposed to be an essay, between 600 to 700 words, all together, But I can't find how to do it, I tried but american government its not a stong subject for me. Can you help?

American Government
Yes

American Government
1. Justice Stephen Breyer stated, “people need to understand the importance of the Court as an institution, even though the Court’s decisions may at times be unpopular and possibly wrong,” Explain how this statement relates to the concepts of “Judicial ...

Math
It is given that the straight line passing through (2,1)and perpendicular to L.

Math
the equation of striaght line is 2x-3y+8=0 find the equation of the straight line passing through (4,-2)and parallel to L

physics
What is the angular momentum (in kilogram-meter^2/second) of a 300.0 g ball rotating on the end of a string in a circle of radius 1.87 m at an angular speed of 1.50 rad/s? Is there certain equations to find angular momentum for different shapes?

physics
A 1350 kg car rolling on a horizontal surface has a speed of 40 km/hr when it strikes a horizontal coiled spring and is brought to rest in a distance of 5.5 m. What is the spring constant (in N/m) of the spring?

physics
thanks

Chemistry
To produce 3.00 L of a 1.9 M solution of NaOH, how many grams of NaOH must be dissolved?

Math
thank you that helped alot

Math
ok so the point are A(3,0) and B(-4,6) and the question asks : the images of points A and B after a reflection in the line y=x. what im trying to ask is what axis does it go over the y or x axis?

Physics
I used that equation to solve for the contributions from each wire. I accidently used the equation for magnetic field for a loop (instead of this wire equation) the first time I submitted the homework problem. The angle was incorrect the first time I submitted it too, but it ...

Physics
The figure below shows two current carrying wires and the directions of the currents they carry. The wires carry the following currents: I1 = 7.1 A and I2 = 8.9 A. Wire 1 is at (0, 5.8) mm; wire 2 is at (15.1, 0) mm; point P is at (15.1, 5.8) mm. Wire 1 is pointing into the ...

Math (Algebra)
I am having a bit of trouble with the question stated below. I am home-schooled and learning math on your own has proven to be quite the difficult task. If someone could please explain how to do this as thoroughly as possible, I would greatly appreciate it. I honestly have no ...

Chemisty Help
for each of the molecules below, show the dipole you would expect. you must show the direction of the dipole - arrow head pointing toward the negative end. 1) CF4 2) CH3Cl

Chemistry
Addition of which of the following substances will increase the solubility of CuCO3 (s) in water ? CuCO3 ---- Cu^2+ (aq) +2 CO3^2- (aq) 1. Aqueous hydrochloric acid 2. Aqueous sodium carbonate 3. Solid copper (II) carbonate a) 1 only b) 2 only c) 3 only d) 1 and 3 only e) 1,2 ...

MathLog#4
But Steve, you used the equation 2x^n-1 rather than 2x^n+1, does that make a difference??

MathLog#4
Thank you guys so so so so much! I have been looking at this forever trying to see how to solve it, when it was right in front of me!! :D

MathLog#4
Simplify: ((2x^n)^2 - 1)/(2x^n-1) where x is an integer and n is a positive interger. for this one igot the answer the same as 2n^x+1, but will the value of the given expression be even, odd, or either? Please explain. :) Thank Yoo

MathLog#4
is the product of two linear functions always a quadratic function? Explain..

algebra
the binomial 8y^12+z^6 can be factored into a binomial and a trinomial. the binomial factor is (2y^4+z^2). whats the trinomial?

Physical Science
Distinguish between longitudinal and transverse waves. Do all waves fall into one or the other of these categories? If not, give an example of one that does not?

MathLog#4
Simplify: ((2x^n)^2 - 1)/(2x^n-1) where x is an integer and n is a positive interger.

Science
michelle weighs 900 N. How much pressure does she apply when she stands on her head, if the part of her head touching the floor has a radius of 2cm?

AP English
can someone please tell me what Luisa Santiago has to do with the role of women in a Chronicle of a Death Foretold by Gabriel Garcia Marquez?

poetry, please comment
I like the theme but your rhyme scheme is throwing me off. Why don't you try rhyming the last two words of each stanza instead. Just because it's a poem doesn't mean it has to rhyme. Hope this helps :)

math
sorry i meant simplify instead of simply

math
It's like miles per hour except in this case it's miles per minute Miles/minute Then just simply :)

math
60%

algebra
how would u factor 2x^2 +13x-7 =27? please help

Chemistry
Consider the equation: A + 4B=3C+3D, when equal masses of A and B are reacted, which is limiting? My possible answers are: A)if the molar mass of A is less than the molar mass of B, then B must be limiting. B) If the molar mass of A is greater than the molar mass of B, then A ...

Chemistry
Consider the reaction of magnesium metal with hydochloric acid to produce magnesium chloride and hydrogen gas. If 3.85 mol Mg and 3.85 mol of HCl are reacted, how many mol of oxygen are left over? I balanced the equation and got Mg(OH)2+2HCl=MgCl2+2H2O. Can you please walk me ...

psychology
Is community treatment for schizophrenia effective? Think about what constitutes “community” and is it the same everywhere? Explain.

Calculus
2. An object is moving along the parabola y = 3x^2. a) When it passes through the point (2, 12), its “horizontal” velocity is dx/dt= 3. What dt is its “vertical” velocity at that instant? b)If it travels in such away that dx/dt=3 for all t,then what happens...

chemistry
which of the following chemical substances would you expect to exhibit the greatest degree of hydrogen bonding? A. ethanol B.propanol C. methanol D. butanol

Pre-Calc
The Greek mathematician Eratosthenes (ca. 276-195 B.C.) measured the circumference of the earth from the following observations. He noticed that on a certain day the sun shone directly down a deep well in Syene (modern Aswan). At the same time in Alexandria, 500 miles north (...

accounting
The predetermined overhead rate for manufacturing overhead for 2008 is $4.00 per direct labor hour. Employees are expected to earn $5.00 per hour and the company is planning on paying its employees $100,000 during the year. However, only 75% of the employees are classified as...

Chemistry
7.93 mol

Chemistry
Refer to the following equation: 4NH3 + 7O2= 4NO2 +6HO, How many moles of ammonia would be required to produce 11.9 mol of water? Can you please walk me through the steps on how to figure this problem?

organic chemistry
gas chromatographic analysis of a mixture of organic compounds gave the following peak areas: 2-hexene= 2.5 2-bromogexane=4.0 2-henanol=1.8, calculate the mole percent compostion of the mixture

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