Monday
March 30, 2015

Posts by jane


Total # Posts: 1,435

Physics
Show that the x-component of the tension force Fc in terms of its magnitude Fc is given by -0.3420 Fc
June 10, 2014

Physics
The length of a box is reduced to two third of its original value and the width and height are tripled. Calculate the factor by which the volume has changed. Am I on the right track? If not please help I am stuck. Thanks. V=LWH V=(L-2/3)(3W)(3H)
June 4, 2014

geometry
A hemispherical dome holds a volume of 486π..find the surface area (omit the area of the circle)? I just need the formulas id use
May 30, 2014

Cosine Law NEED HELP QUCIK
The minute hand of a clock is 12 cm long, and the hour hand is 10cm long. Determine the distance between the tips of the hands at 9:30pm, to the nearest mm. The answer is 17.5 cm I need to work on how to get to that answer!
May 27, 2014

Cosine Law NEED HELP QUCIK
For the next three questions, choose which is the most appropriate method to solve the problem, explain your answer. a) SOACAHTOA b) The Sine Law c) The Cosine Law d) The problem cannot be solved without further information 1) Yachts in a race have to sail a triangular course...
May 27, 2014

7th grade science
Energy & Environment Which of the following desribes an example of land reclamation? A)after an are is mined for copper ,the soil is replaced and new plants are planted. B)after a forest is clear-cut ,desertifications occur. C)after a forest is clear-cut,it is mined for copper...
May 27, 2014

Cosine Law
For the next three questions, choose which is the most appropriate method to solve the problem, explain your answer. a) SOACAHTOA b) The Sine Law c) The Cosine Law d) The problem cannot be solved without further information 1) Yachts in a race have to sail a triangular course...
May 25, 2014

Cosine Law
The minute hand of a clock is 12 cm long, and the hour hand is 10cm long. Determine the distance between the tips of the hands at 9:30pm, to the nearest mm.
May 25, 2014

Cosine Law
Find all missing sides/angles. Round each answer to the nearest unit. Angles/sides ABC (left to right) 1) Angle c= 70 deg side b= 28 yd side c= 26 yd 2) Side a= 18 cm Side b= 24 cm Side c= 28 cm
May 25, 2014

3D Shapes & Scale
Write an explanation of ONE of the following question: (your explanation should be in paragraph form and should be written for a reader who is completely unfamiliar with area/volume scale factors and the square-cube law) 1) Why can aquatic animals grow so much larger than land...
May 25, 2014

3D Shapes & Scale
An object is scaled up to be 1000x as large. How does the new surface area compare with the original surface area? How does the new volume compare with the original volume?
May 25, 2014

3D Shapes & Scale
A farmer makes hay bales that are 1m cubes. His trailer can haul 128 hay bales at once. He is going to buy a new machine that makes hay bales that are 2cm cubes. How many bales will fit on the trailer now? (Assume they all fit evenly) Show calculations
May 25, 2014

trig
A kite string is 65 metres long and makes an angle of 32 degrees with the ground. Calculate the height of the kite above the ground to the nearest metre.
May 25, 2014

geometry
Find the lateral area and volume of the right triangular prism. side lengths are 3,4,5 and height is 6.How do I find out the apothem?
May 22, 2014

Management
A firm is assigned the network part 132.99. It selects an 11-bit subnet part. (20 pts) a) Draw the bits for the four octets of the IP address of the first host on the first subnet. b) Convert this answer into dotted decimal notation. c) Draw the bits for the second host on the...
May 6, 2014

chemistry
the mass of a certain mixture of BaO and CaO is found to be exactly one half that of the mixed sulfates formed from it by the action of H2SO4. calculate the percentage of BaO and CaO in the mixture.
May 4, 2014

Algebra 2
Can someone please explain how to do this problem? A 450 foot tall building is near a shorter building. A person on top of the shorter building finds the angle of elevation of the roof of the taller building to be 25 degrees and the angle of depression of its base to be 35 ...
April 30, 2014

Math
How do you simplify this problem? (x + 4y − 5z) − (x − 3y + 6z)
April 23, 2014

arithmetic
a car traveled a distance of 195 miles in 3 hours 15 minutes what is the unit rate ? oris it answer 60 miles per hour
April 19, 2014

math
a car travelved a distance of 195 miles in 3 hours 15 minutes what is the unit rate
April 19, 2014

Physics
The acceleration due to gravity on Earth is 9.80 m/s2. If the mass of a dog is 40.0 kg, what is the weight of the dog?
April 18, 2014

Math
The longer leg of a triangle is one foot less than twice the shorter leg. The hypotenuse is 17 feet long. Find the area of the triangle.
April 15, 2014

Science
Explain some modifiable risk factors as well as some actions you can take to avoid dying from a lifestyle disease.
April 9, 2014

Science
How do lifestyle diseases differ from other diseases?
April 9, 2014

Algebra
Maria's average speed for a 6 hour trip was 40kph. For the first 4 hours, she drove at an average rate of 50kph. What was her average speed for the last 2 hours?
April 8, 2014

Algebra 2
How do I find the equation of an ellipse with: Vertices: (-7,10), (-7,-10) Foci: (-7, square root of 19) (-7, - square root of 19) I think the center is (-7,0) and a^2 is 49 I just don't know how to get c^2 so I cant get b^2
April 7, 2014

Biology
Can someone please tell me if I have the right answers? Pasteur's experiments led to which theory? A. biogenesis theory B. endosymbiont theory C. evolution theory D. spontaneous generation theory I think its A or D Scientists have fossil evidence for which idea for the ...
April 6, 2014

PreCalculus
The cost C (in dollars) of manufacturing x wheels at Deon's Bicycle Supply is given by the function C(x)= 0.1x^2-60x+22,744. What is the minimum cost of manufacturing wheels? Do not round your answer.
March 25, 2014

Math
if I have 1 defect in a batch of 54 widgets, what is my quality index?
March 21, 2014

science(check answers)
Emily
March 12, 2014

science(check answers)
I got 100%(Thanks:)
March 12, 2014

Computer Tech
Are they Daydreamin' and Yours Truly?
March 6, 2014

Computer Tech
I am doing a powerpoint/photoshop project in my computer tech class about a singer that has recently become famous in the world of music. The artist I am researching is Ariana Grande. When I was looking for her albums I found two: Daydreamin' and Yours Truly. Some websites...
March 6, 2014

Math
A golfer stands 420ft(140 yd) horizontally from the hole and 50ft above the hole. Assuming the ball is hit with an initial speed of 120ft/s, at what angle should it be hit to land in the hole? Assume the path of the ball lies in a plane.
March 6, 2014

Computer Tech
Thank you!
March 5, 2014

Computer Tech
I have to do a power point on a singer who has recently become famous. I chose Ariana Grande because she only has two albums. I have been trying to find her song and album release dates but cant find a website. Can someone please see if they could find one? It would be a big ...
March 5, 2014

Algebra 2
Thank you!
March 4, 2014

Algebra 2
Okay so I fixed the next two because I added the fractions wrong. 2. y=(1/2)x-(11/4) 3. y=(5/3)x-4
March 4, 2014

Algebra 2
What am I doing wrong? slope m=(8-6)/(1--5)= m=2/6= m=1/3 m=-3 midpoint (-5+1)/2, 8+6/2)= (-4/2, 14/2)= (-2, 7) y=mx+b= 7=-3(-2)+b = 7=6+b = 1=b equation y=-3x+1
March 4, 2014

Algebra 2
Can someone please check my answers? The question is: Write an equation for the perpendicular bisector of the line segment joining the two points. (-5,6),(1,8)= y=-3x+1 (1,4),(6,-6)= y=(1/2)x-(3/4) (5,10),(10,7)= y=(5/3)x-(17/3)
March 4, 2014

Algebra 2
Can someone please explain how to do this problem? A regional soccer tournament has 64 participating teams. In the first round, the number of games played decreases by a factor of one half. Find a rule for the number of games played in the regional soccer tournament. I tried ...
February 24, 2014

Algebra 2
I can't figure out how to find the n on top of the sigma. I have the rest of the equation but I just don't know what to do. I'll use "E" for sigma. nEi=1 (10-3i)=-28 Can someone please show me how to do this problem?
February 19, 2014

Algebra 2
I can't figure out how to find the n on top of the sigma. I have the rest of the equation but I just don't know what to do. I'll use "E" for sigma. nEi=1 (-5+7i)=486 Can someone please show me how to do this problem?
February 19, 2014

physics
A truck is pulling a car. FT is the magnitude of the force that the truck exerts on the car FC is the magnitude of the force that the car exerts on the truck Consider the following scenarios independently. 1)The truck is driving with a constant velocity, but as it turns out, ...
February 13, 2014

Science! just one question! help ASAP plzzz
Photosynthesis is required for this process to occur.
February 11, 2014

Algebra 2
Can someone please explain how to do this problem? Woodrow wins a tic-tac-toe game 65% of the time when he chooses the first square and 32% of the time when his opponent chooses the first square. The player who plays first is chosen by a coin toss. What is the probability that...
February 9, 2014

Algebra 2
Can someone please check my answers? Find the probability of drawing the given cards from a standard dick of 52 cards (a) with replacement and (b) without replacement. 1.A red card, then a black card a. 1/4 b. 13/51 2.A ten, then the ace of hearts a. 1/676 b. 1/663 3.A face ...
February 9, 2014

Algebra 2
Do I add them and that's it or do I do something else?
February 4, 2014

Algebra 2
Theres 12 face cards (4 queens, 4 kings, and 4 jacks) and 4 fours. What would you do with 12/52 and 4/52?
February 4, 2014

Algebra 2
How would you find the probability of drawing a face card and a 4 out of a standard deck of 52 cards? I got 4/13 but I don't think its right.
February 4, 2014

Algebra 2
Can someone please explain how to do this problem? The probability that it will rain today is 65%, and the probability that it will rain tomorrow is 25%. The probability that it will rain both days is 35%. What is the probability that it will rain today or tomorrow?
February 4, 2014

Algebra 2
Can someone please check my answers? A card is randomly drawn from a standard deck of 52 cards. Find the probability of drawing the indicated card. 1.Not an ace. =12/13 2.A face card and a four. =4/13 3.A heart or a diamond. =1/2 4.A six or a seven. = 2/13 5.An ace and a spade...
February 3, 2014

Algebra 2
Can someone please check my answers? A card is randomly drawn from a standard deck of 52 cards. Find the probability of drawing the indicated card. 1.Not an ace. =12/13 2.A face card and a four. =4/13 3.A heart or a diamond. =1/2 4.A six or a seven. = 2/13 5.An ace and a spade...
February 3, 2014

English
Would this be a good thesis to a paper about someone's life? Even though Karlee has a big interest in farming, she wants to take her life in a slightly different direction.
February 3, 2014

English
How do you write a thesis statement that doesn't sound like a roadmap. My teacher wants us to have a hook, which I have, then a thesis, and then the roadmap. I don't know how to write a thesis that doesn't sound like the roadmap.
February 3, 2014

am history
During the bitter struggle over reconstruction policy, Congress overrode Johnson's veto of the
January 29, 2014

am history
Which of the following nineteenth -century inventors is associated with Menlo Park in New Jersey? A. Gustavus F. Swift B. Alexander Graham Bell C. Cyrus W. Field D. Thomas Alva Edison
January 29, 2014

am history
General Grant's army came closest to defeat in the West as a result of a surprise Confederate attack at the Battle of
January 29, 2014

Algebra 2
How would I reduce the equation 7n=n-5n(n+4)
January 23, 2014

Algebra 2
Thank you
January 23, 2014

Algebra 2
What do I do after I have the equation at 8+64n = 8n
January 23, 2014

Algebra 2
Thank you
January 22, 2014

Algebra 2
How do I get 0 and 7 out of 2x^2 = x^2 +7x
January 22, 2014

artist
What do you expect from an art education? How will it help you reach your life and career goals ? What are three of your strengths ? explain how two of your strengths have contributed to your success in art school, in art , or in your life.
January 14, 2014

Math please help quick
Which of the following are identities? Check all that apply. (Points : 2) sin2x = 1 - cos2x sin2x - cos2x = 1 tan2x = 1 + sec2x cot2x = csc2x - 1 Question 4. 4. Which of the following equations are identities? Check all that apply. (Points : 2) Question 5. 5. The expression ...
January 12, 2014

SCIENCE HELP PLEASE
3. Which of the following methods of reporting research is not followed by most scientists? (Points : 1) publishing a research paper online publishing a research paper in print holding a press conference presenting a talk at a meeting Question 4. 4. Who decides whether a paper...
January 8, 2014

SCIENCE HELP PLEASE
3. Which of the following methods of reporting research is not followed by most scientists? (Points : 1) publishing a research paper online publishing a research paper in print holding a press conference presenting a talk at a meeting Question 4. 4. Who decides whether a paper...
January 8, 2014

Algebra 2
Inverse for both I think. Right?
January 6, 2014

Algebra 2
I am trying to figure out if these problems are Direct Variation, Inverse Variation, or Neither. Could someone please check my answers? m=-5p Direct c=e/-4 Neither c=3v Direct r= 9/t Inverse n=(1/2)f Direct u=I/18 Neither d=4t Direct z= -0.2/t Inverse
January 6, 2014

Chemistry
How do you express relative amounts pf each element in a compound?
January 6, 2014

Chemistry
If 1.50 g of H2C2O4 2H2O were heated to drive off the water of hydration, how much anhydrous H2C2O4 would remain? Thank you! Please explain clearly.
December 19, 2013

Algebra 2
How do you solve this equation? -3e^2t=-480
December 18, 2013

Algebra 2
I think I figured it out. 85/2=42.5 log5=log42.5 log42.5/log5 =2.330 to the third decimal
December 18, 2013

Algebra 2
How do you solve this exponential equation using logarithms? 2*5^x=85 Do you start like this? xlog2*5=log85 I don't know what to do after that.
December 18, 2013

Science
One light year is about 9 trillion kilometers. Arcturus is a star that is 37 light years from Earth. If you are about 11 years old now, how old will you be when light that is leaving Arcturus today reached Earth? How far, in kilometers, will it have traveled? please explain ...
December 16, 2013

math
$400 times 5.4 times 1
December 9, 2013

science
A 50 N girl climbs the ladder with a 60 N painting in 5 seconds. She has done 120 J of work. How much power does she need?
December 9, 2013

Math- Trigonometry
The flowering of many commercially grown plants in greenhouses depends on the duration of natural darkness and daylight.  Short-day plants, such as chrysanthemums, need 12 or more hours of darkness before they will start to bloom.  Long day plants, such as carnations...
December 8, 2013

5th grade science
Which of the following best describes an electric charge? -Positive or negative terminal of a battery -property of electrons, protons, and neutrons -materials that conducts current -has a north pole and a south pole
December 6, 2013

5th grade science
Which of the following is an example of a nonmnetal conductor? copper wire, salt water, plastic covering of a wire, or cotton clothing?
December 6, 2013

science
Which of the following best describes an electric charge? -Positive or negative terminal of a battery -property of electrons, protons, and neutrons -materials that conducts current -has a north pole and a south pole
December 6, 2013

science
Which of the following is an example of a nonmnetal conductor? copper wire, salt water, plastic covering of a wire, or cotton clothing?
December 6, 2013

Biology 1
Does anyone know of a Photosynthesis concept map that includes all of the following: Photons, thylakoids, reactions, sun, NADPH, carbohydrates, xanthophyll, wavelength, pigments, stroma, product, photosynthesis, NADP+, visible light, glucose, energy, glucose, energy, ...
December 5, 2013

Algebra 2
Thank you
December 5, 2013

Algebra 2
I am trying to find the inverse of these functions. Can someone please check my answers and tell me how to do number 2? 1. y=7^x y=log base 7 x 2. y=log base 1/2 x 3. y=2^(x)-3 y=2^(x+3) 4.y=6+log x
December 5, 2013

Math
twice a number minus a second number is -1. twice the second number added to three times the first number is 9. find the two numbers.
December 1, 2013

English
How do you site a reference book? Also, does anyone know a website that would tell me how to site a primary source, a website, and a magazine?
December 1, 2013

Physics
Neutrons have a rest mass of 1.6749*10-27 kg (equivalent to 939.6 MeV). If a certain neutron has a total energy of 949 MeV, what are its relativistic mass energy in MeV, its speed in m/s, its kinetic energy in MeV, and its momentum in kg.m.s-1?
November 28, 2013

science
Neutrons have a rest mass of 1.6749*10-27 kg (equivalent to 939.6 MeV). If a certain neutron has a total energy of 949 MeV, what are its relativistic mass energy in MeV, its speed in m/s, its kinetic energy in MeV, and its momentum in kg.m.s-1?
November 26, 2013

Physics
Posting this question again Design an AC circuit with R, L, and C components so that it can achieve output voltage in a given load to be doubled in amplitude (magnitude) while achieving increase in the phase shift of the output voltage of 45 more than the phase of the input ...
November 20, 2013

Physics
It doesn't say
November 20, 2013

Physics
Design an AC circuit with R, L, and C components so that it can achieve output voltage in a given load to be doubled in amplitude (magnitude) while achieving increase in the phase shift of the output voltage of 45 more than the phase of the input voltage. Use 60Hz as the ...
November 20, 2013

Algebra
A chemist has two solutions of sulfuric acid. The first is one half sulfuric acid and half water. The second is three-fourths sulfuric acid and one fourths water. He wishes to make 10 liters of a solution which is two-thirds sulfuric acid and one-thirds water. How many liters ...
November 10, 2013

English
Can someone please check my answers? *Cross out any prepositional phrase. Underline the subject once and the verb/verb phrase twice. Write Adv. above adverbs. Put infinitives in parenthesis. Not doesn't need to be listed as an adverb. 1.Without hesitation, the rabbit ...
November 6, 2013

English
Yes not isn't a verb yet in my English class because I'm in English 1. Thank you for checking my answers.
November 5, 2013

English
Can someone please check my answers? *Cross out any prepositional phrase. Underline the subject once and the verb/verb phrase twice. Write Adv. above adverbs. Put infinitives in parenthesis. Not is not considered an adverb in my English class. 1.From June until the end of ...
November 5, 2013

English
Thank you
November 4, 2013

English
Okay
November 4, 2013

English
Can someone please check my answers? *Cross out any prepositional phrase. Underline the subject once and the verb/verb phrase twice. Write Adv. above adverbs. Put infinitives in parenthesis. 1. In the early morning, the birds chirped in the back of the house near the pond. (...
November 4, 2013

English
2. at noon. Thank you for checking them. :)
November 4, 2013

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