# Posts by Melinda

Total # Posts: 177

**Precalculus**

Thank you Reiny!!!!!!!

**Precalculus**

Whats the value of a? =-= For the graph, determine the equation of the function in the form y=a(x-h)^2+k. Then describe the transformations that were applied to y=x^2 to obtain the graph. Here is the graph: imgur dot com/A7e5M The only thing I know is that: 1. Reflected in x-...

**precalculus**

I tried looking through previous post but i don't understand it

**precalculus**

How do I find the vertical/horizontal compression/stretch? For the graph, determine the equation of the function in the form y=a(x-h)^2+k. Then describe the transformations that were applied to y=x^2 to obtain the graph. Here is the graph: imgur dot com/ft6lA I got reflected ...

**Precalculus**

How did you find out what a is if you knew it was UP 4, left 1?

**Precalculus**

So it is a vertical stretch by -3?

**Precalculus**

Can someone help me with this question? I got the transformation for horizontal shift and vertical shift, however, I don't know how to find the vertical/horizontal compression/stretch. 1. Describe the transformations that were applied to the parent function to create the ...

**Math**

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...

**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...

**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??

**Math**

Got it! THank you~~~~~~~

**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...

**Math**

Ok, thanks~

**Math**

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

**Math**

So I am right? =D

**Math**

I can't post exact link due to errors :S

**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 >.<

**Math**

i got 0.25 answer, I wish I could show you the graph... T.T

**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 ?

**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

**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...

**precalculus**

For problem 2, it is A? x= -1

**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

**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...

**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

**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...

**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?

**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 ...

**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 ...

**algerbra2**

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

**algebra**

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

**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 ...

**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 ...

**chemistry**

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

**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

**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 ...

**Spanish-7th grade-Please check my answers**

Thank you so much for checking these

**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 ...

**english**

thank you so much!

**english**

soon and fearful

**english**

what is the adverb in this sentence? "Soon people became very fearful."

**geometry**

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

**Algebra 1B**

the attendance on the first night of a play was 435. The attendance of on the third night was 545. if the attendance increase at a linear rate, then how many people can be expected to show up on the 6th night

**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 ...

**Economics**

Explain the entities affected by industrial regulation in terms of market structure.

**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

**Math**

I appreciate the explanation-I get it now

**Math**

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

**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 ...

**ksu**

what is the tax rate

**English**

How can I become my own editor and review my writing with a critical eye?

**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

**math**

what does a line above pq mean

**science**

could you please help me how do you write a acrostic poem for bacteria.

**mummification process**

how do they do it

**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).

**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

**MATH**

HOW DO YOU FIND THE RATE OF SPEED

**math**

can you help me in math

**math**

I need help in math can you help me in math.

**math**

I need help in math can you help.

**Physics**

Is this it? 6/120 = N/240 (240) 6/120 = n/240 (240) 12 = N

**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 ...

**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 ...

**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 ...

**grammar/sentence structure**

thank you!

**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...

**PHILOSOPHY REPOST**

wow, everything became so much clearer right after that post. thank you so much, i get it now!!

**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"...

**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...

**PHILOSOPHY REPOST**

need to apply the moral theory of rule utilitarianism in my essay but i don't 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 ...

**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 ...

**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)

**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...

**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 ...

**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 ...

**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.