Tuesday
September 30, 2014

Posts by Melinda


Total # Posts: 168

precalculus
Determine the maximum and minimum number of turning points for the function h(x) = -2x^4 - 8x^3 + 5x -6. Maximum:3 Minimum:1 Is this a valid reason: A quartic polynomial function has a 3 Turning points. The turning point is always 1 less than the degree. For example degree 4=3...
December 9, 2011

precalculus
Determine the x-intercepts of the polynomial function y=-6(x+7)^4 + 5. Round to two decimal places, if necessary. y=-6(x+7)^4 + 5 0=-6(x+7)^4 + 5 -5=6(x+7)^4 -5/6 =(x+7)^4 There are no x-intercepts??
December 9, 2011

Math
Got it! THank you~~~~~~~
December 4, 2011

Math
Someone verify if this is correct, please! 1. Draw a distance versus time graph that corresponds to the walk described below. Adam starts 8 m away from the motion sensor and walks in a straight line toward the sensor at a constant rate of 0.5 m/s for 3 s. He immediately begins...
December 4, 2011

Math
Ok, thanks~
December 4, 2011

Math
Btw, may I post another question here with image, I just want you to verify if I am correct :|
December 4, 2011

Math
So I am right? =D
December 4, 2011

Math
I can't post exact link due to errors :S
December 4, 2011

Math
Here is the link imgur dot com/3V1AX The question asks: A distance versus time graph is shown below. What is the instantaneous rate of change in the distance at t=6s sorry, it won't rotate, you can save the pic and rotate >.<
December 4, 2011

Math
i got 0.25 answer, I wish I could show you the graph... T.T
December 4, 2011

Math
I need help with this question, it says to find the instantaneous rate at distance t = 6s with the given graph First of all, it is a linear line, do i need to find the equation of the graph? After finding the equation, i plug in 5.99 and 6.01? and solve ?
December 4, 2011

precalculus
I believe its between (10,6) and (12,6) because we know that the starting point is at 6.. I don't know after that
December 3, 2011

precalculus
What about question 4? 4. A student is walking in a straight line in front of a sensor. The sensor begins collecting data when the student is 6m away. The student walks toward the sensor for 4 s at a rate of 1 m/s. Then she walks away from the sensor for 8 s at a rate of 0.5 m...
December 3, 2011

precalculus
For problem 2, it is A? x= -1
December 3, 2011

precalculus
Then the answer must be c) h(x) = -x^2 + 9/4-1 = -(4)^2 + 9/4-1 = -7/4-1 =-x(1)^2 + 9 = 8 = -7 - 8/3 =-5 there c is negative
December 3, 2011

precalculus
This is the correct question, sorry I forgot to type in the one part of the question. 4. A student is walking in a straight line in front of a sensor. The sensor begins collecting data when the student is 6m away. The student walks toward the sensor for 4 s at a rate of 1 m/s...
December 3, 2011

precalculus
Why is problem 1 not A? I plugged in 4 and 1 into each of the equations given and A gave me negative avg rate T.T
December 3, 2011

precalculus
For Number 1, the answer is A wow, totally miscalculated. What about other questions am I right? For number 3 4. A student is walking in a straight line in front of a sensor. The sensor begins collecting data when the student is 6m away. The student walks toward the sensor for...
December 3, 2011

precalculus
2. For which value of x is the instantaneous rate of change of h(x) = 0.5x^2 + x - 2 closest to 0? a) x= -1 b) x= 0 c) x= 1 d x= 3 sorry mistake on #2 its B?
December 3, 2011

precalculus
Can someone verify if my answer is right? 1. Which function has a negative average rate of change on the interval 1<x<4 a) f(x) = x^2 - x - 1 b) g(x) = 1.6x - 2 c) h(x) = -x^2 + 9 d j(x) = -3 I picked d, because I subsitute all the numbers for all letters and the only ...
December 3, 2011

precalculus
How do you do this question? 1. A speed versus time graph shows the segment from (3, 4) to (8,4). The units for the vertical axis are m/s. If the object whose speed was being graphed is 8 m away from the point from which measurements are made at t= 3s, how far away is the ...
December 3, 2011

algerbra2
find the eighth term of a sequence whose first three term are 13,6,-1
November 21, 2011

algebra
how do you do this problem? perform indicated operation write answer as a fraction, simplify. 1/11+ 5/6
November 18, 2011

English-Please recheck
I know the answer for the second one-it is ABCB but I'm not sure what that other website was suppose to tell me- I read it but I still have a question about number 1-Wild Night! Wild Night! I've eliminated internal rhyme but I'm not sure is that an example of ...
October 12, 2011

English
We're studying a Dickinson poem Wild Nights-- I have a question Wild Nights--Wild Night! Were I with thee 1. Is that an example of an internal rhyme, slant rhyme, alliteration or caesura? 2. The poem has two stanzas that are ABBA and then two ABCB and ABCB What best ...
October 12, 2011

chemistry
if you have 0.454 grams of sulfur trioxide, how many moles does this represent? how many molecules? how many oxygens atoms?
April 9, 2011

chemistry
Calculate the standared enthalpy of formation of solid Mg(OH)2 given the following data: 2Mg(s) + O29(g) →2MgO(s) ∆H = -1203.6kJ Mg(OH)2(s) →MgO(s) + H2O(l) ∆H= +37.1kJ 2H2(g) +O2(g) →2H2O(l) ∆H = -571.7kJ
March 13, 2011

Chemistry
At 20 C (approximately room temperature) the average velocity of N2 molecules in air is 1050 mph. What is the velocity of a molecule of N2? What is the kinetic energy of a N2 molecule with this velocity? What is the kinetic energy of a mole of N2? I know that the velocity is ...
March 13, 2011

Spanish-7th grade-Please check my answers
Thank you so much for checking these
March 1, 2011

Spanish-7th grade-Please check my answers
Could someone check these please?I had place a possessive adjective in place of el 1. El hermano de Juan y Pedro se llama Bret Answer: Su hermano se llama Bret 2.Replace los with possessive Los hermanos de Paco y Linda se llama Santiago y Jose Answer: Sus hermanos se llaman ...
March 1, 2011

english
thank you so much!
February 15, 2011

english
soon and fearful
February 15, 2011

english
what is the adverb in this sentence? "Soon people became very fearful."
February 15, 2011

geometry
When finding the perimeter of a figure on a grid,whydo you not count the spaces inside tha grid?
January 26, 2011

Alliedhealth
A woman is brought into an emergency room after a severe automobile accident. She’s unconscious and badly injured. Her husband arrives at the emergency room at the same time as she arrives in the ambulance. The doctor explains the wife’s condition to her husband and ...
January 24, 2011

Economics
Explain the entities affected by industrial regulation in terms of market structure.
January 9, 2011

geometry
in a diagram of a scalene triangle ABC, line DE is the midpoint of line AB and line AC and DE=7 find the length of line BC
December 5, 2010

Math
I appreciate the explanation-I get it now
September 7, 2010

Math
Please help! What is the solution of 5 - 2x is greater than -3 OR -3x + 9 is less than -6 Thank you
September 7, 2010

Physics
Please help- A small fish is dropped by a pelican that is rising steadily at 0.50 m/s. How far below the pelican is the fish after 2.5 s? Answers. 61m 29.3 30.6 1.1m I just started school and I'm totally lost-If someone could explain formula to me I'd really ...
September 5, 2010

ksu
what is the tax rate
August 10, 2010

English
How can I become my own editor and review my writing with a critical eye?
July 19, 2010

7TH GRADE
Several students in class were asked to reach into a bag and pull out cubes. the number of cubes each person grabbed. what are 1st and 3rd quartiles of this data
April 29, 2010

math
what does a line above pq mean
September 3, 2009

science
could you please help me how do you write a acrostic poem for bacteria.
October 24, 2008

mummification process
how do they do it
October 7, 2008

Math
Solve the following system of equations. x + 4y= 8 (1) x=5-4y (2) What is the solution of the system? (Type an ordered pair. Type N if no solution).
August 2, 2008

Computers in Business
I am in need of help with Microsoft Office Access 07. I am trying to set relationship tables and I have to enforce referential integrity on all 4 of my tables and cannot get it to work. What do I need to do? Thanks
April 22, 2008

MATH
HOW DO YOU FIND THE RATE OF SPEED
February 19, 2008

math
can you help me in math
November 19, 2007

math
I need help in math can you help me in math.
November 19, 2007

math
I need help in math can you help.
November 19, 2007

Physics
Is this it? 6/120 = N/240 (240) 6/120 = n/240 (240) 12 = N
November 1, 2007

Physics
This question really has me stumped and I don't know why, I seem to have forgotten the process . . . A model electric train requires 6 V to operate. If the primary coil of its transformer has 240 windings, how many windings should the secondary have if the primary is ...
November 1, 2007

essay edit
sorry to do this to you, gurublue, but i had to break it up into different pieces...this is the last one, i swear!! The scientific misconduct case of John Darsee is wrong and immoral, based on the moral theory of rule utilitarianism. I will argue why this case of scientific ...
October 13, 2007

GRAMMAR/SENTENCE STRUCTURE
John Darsee has been one of many scientists and researchers involved with the scandal of scientific misconduct, where he deliberately falsified data and published his results to scientific journals. First, I will discuss the case of John Darsee, as well, examine the moral ...
October 13, 2007

grammar/sentence structure
thank you!
October 13, 2007

grammar/sentence structure
would someone please check over my paragraphs for any grammatical errors, and more importantly, correct sentence structure? I was told I was bad at both... thank you so much in advance! The case of scientific fraud I would like to discuss extensively is the case of John Darsee...
October 13, 2007

PHILOSOPHY REPOST
wow, everything became so much clearer right after that post. thank you so much, i get it now!!
October 12, 2007

PHILOSOPHY REPOST
okay. for exmaple, in a case of scientific fraud, rule utiliarianism would say its "bad", because the rule is that fabrication of data/scientific misconduct is wrong? but wouldnt that be just stating what you're trying to prove? what would be the "rule"...
October 12, 2007

PHILOSOPHY REPOST
how do the examples apply to the moral theory? does rule utiliarianism say that the theif IS a bad person according to rule utiliarianism? also, for the girl example, does rule utilitarianism support the principal because he was following the rules in which benefit and is fair...
October 12, 2007

PHILOSOPHY REPOST
need to apply the moral theory of rule utilitarianism in my essay but i dont really understand what it is. i tried google and wiki but it doesnt really provide me with clear meaning, or examples. could someone please explain to be as simple as possible what RULE utiliarianism...
October 12, 2007

Math
Given; a=2.52, c=4.75 find the remaining parts of the right triangle. I found b which equals 4.03 but need help with the angle. We already know that one angle = 90 since its a right triangle. I just need to know angle A. Angle A = a)58 degrees b)32 degrees c)28 degrees d)62 ...
March 10, 2007

Math (triangles)
Given b=48, A=36 degrees find the remaining parts of the right triangle. a= a)51 b)35 c)66 d)29 and c= a)35 b)26 c)82 d)59 This one I'm lost on! a = b tan A = 34.8 (round it off to 35) c = b/cos A = 59.3 (round it off to 59)
March 9, 2007

Math (triangles)
Given b=48, A=36 degrees find the remaining parts of the right triangle. B= a)144 degrees b)154 degrees c)54 degrees d)64 degrees We know that one angle equals 36 and since it is a right triangle another must equal 90. The sum of the angles of a triangle is 180 meaning that we...
March 9, 2007

Chemistry
write isotpoic symbols of the form X-A (for example, C-13) for each of the following isotopes. **Do I add the number of protons and neutrons together to get the answer? The symbol is easy to figure out.** a) the iodine isotope with 74 neutrons B) the phosphororus isotope with ...
February 8, 2007

economics
Business leaders in a small but thriving community in the southeast have noticed a considerable increase in the alcohol consumption of their workers. This increase, they claim, reduces worker productivity, increases absenteeism and jeopardizes safety on the job. Rather ...
November 28, 2006

English
1. The speaker uses "and" to extend the comparison/ 2. We can tell that the journey has been diffcult because she compares it to walking on a staircase with tacks, splinters, torn-up, and in the dark.
September 11, 2006

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