# Posts by Donald

Total # Posts: 213

Math calculus
(2) (-1) (3)+(4)

Math A Calculus
For a =( 2 ÷3)and b=(-1÷4)..Find a).. a+b b).. | a+b | c).. Find the length of the vector i + 2j-- 2k

Math
An aircraft has airspeed of 300km/h and it's course is 020°. The speed of the wind is 80km/h blowing from 320°..sketch the diagram to represent this information (ie: the triangle of velocities).

Math
Can you the full working out for this question above...

Math
A man walk 9km in the direction 246 degrees and then for 6km in the direction 096 degrees...... What is the displacement from the starting point?..... Formula and answer please?

Math
A man walk 9km in the direction 246 degrees and then for 6km in the direction 096 degrees.... What is the answer in diagram Form?

Math
Thank you Ms. Sue for checking on this. Also how would I be able to double check on this to see if I got the correct answer? Is there a way to do that?

Math
Good evening. I posted a math question earlier that I never received any help on because someone posted something inappropriate. My new math problem is as follows: The area of a rectangular piece of a land is 3/16 square miles. If the width of the piece of land is 1/6 mile ...

Math
I am really confused on how I should write the inequality.

Math
Ricardo has a \$50.00 gift card for an electronics Store. He also has a coupon good for \$10 off his Purchase. Let a represent the amount of merchandise Ricardo can buy from the store using his gift card and coupon. Graph the solution set for a on the number line. Would my ...

Science
Yes I just looked at it. Thank you so much.

Science
Hello Mr. Pursley, Thank you for sending me this link this will definitely come in handy.

Science
Tertiary consumers are at the top of the energy pyramid and producers are at the bottom because a producer can create its own food. Would this be correct on how they might want me to answer this?

Science
In what levels are producers and tertiary consumers, respectively found in an energy pyramid? I am kind of lost on how I am supposed to determine what level a producer is at on a pyramid? Can you please help me with this.

Science
Hello Ms. Sue. I think I understand this a bit better. I will definitely keep this website handy and put it on my favorites. Owl can be a tertiary consumer and it is a food chain of what I described but it can get complex and turn into a food web from my understanding.

Science
I will take a look at the link which you have provided.

Science
Which level of consumer is an owl in the following chain: grass, cricket, mouse, and owl? I do not know understand this at all can you please explain this so I can get a better understanding of this?

Science
What factor is described when low water levels are causing animals to die from dehydration? I am confused on this. Please help. I don't even know where to begin looking

Math
Yes. I got onto another website and was able to figure out how the formula works and that is the precise answer that I got and I plotted it on the grid.

Math
Ms. Sue I figured out the answer.

Math
Mrs. Sue, I made a mistake. The coordinate for the Theater is (-3, 5) and the Restaurant is (-3-4) and I have to find the halfway point in between. How do I do this?

Math
I just need to find the halfway point in between those two coordinates.

Math
Mrs. Sue, I have a math question if you can please help me on this. I am confused. I am doing coordinates. If I have a theater at 5 and a Restaurant at -4 (5,-4) how do I find out the halfway point in between?

chemistry
Explain the first ionization energy of lithium is greater than that of sodium

chemistry
How many unpaired electrons for cr3+

Math
Hello Ms. Sue, I really appreciate your help on this I just figured this out as well.

Math
Hello Ms. Sue so then would my answer be: 1/4 x 14/1=3.5 and this is how long it took Ingrid to wash her car 3.5 hours?

Math
Hello Ms. Sue would I convert 14 to a fraction such as 14/1?

Math
Good evening everyone. I am very confused on how to work on the below problem. Ingrid walked her dog and washed her car. The time she spent walking her dog was 1/4 the time it took to wash her car. It took Ingrid 14 minutes to walk the dog. How long did it take Ingrid to wash ...

math
write equation of hyperbola with cebter c(4,2) vertex (4,5) equation of one asymptote 4y-3x=-4

chemistry
Calculate the energies of the states of hydrogen atom with n=2 and n=3

chemistry
Calculate the energy required for ionization of electron from the ground state of hydrogen atom

chemistry
Calculate the energy required for ionization of electron from the ground state of hydrogen atom

chemistry
Calculate the maximum number of unpaired electrons that can be placed in a 6d subshell

science
Explain the purpose of a control in a scientific experiment

science
If a scientist wished to to determine the effect of a certain herbicide on wee growth he would include a control in the investigation. Suggest a suitable control in this case.

science
Describe how you would investigate effect of ph on enzymes rate. Draw a labelled diagram to show how you carried out the experiment

science
Explain how end product inhibition can control enzyme activity in living cells

science
What is the unit for measuring enzyme activity? What is turnover number

math
A circle has centre(5,12) and its tangent to the line with equation 2x-y+3=0. Wtite equation of the cirle

math
A circle has centre(5,12) and its tangent to the line with equation 2x-y+3=0. Wtite equation of the cirle

math
The locus of point whose distance from the point (0,5) is always 3/4 of its distance from line y=8 is an ellipse. Find major and minor axis

Math
Thank you Ms. Sue and Mr. Bobpursley :)

Math
Hello Ms. Sue that makes sense so -197 is less than -110?

Math
Or do you mean the greater the negative number the less it is regarding the number in front of it?

Math
Hello Mr. Bobpursley and Ms. Sue are you saying that when -197 is on the number line on the negative side that it would be always less than a number that is before the number -197? Please advise.

Math
Hello I need to ask a question. This is all new to me as we are just learning this in school. How would I write an inequality with -197 and -110? I have never done this before. Can you please help me?

Language Arts
Good evening. I have a problem in English Language Arts. I have to write a poem. The instructions are as follows: Write a short poem that reflects the mood you interpret of a season (Spring, Summer, Fall or Winter). Follow the requirements listed below: 1. The poem must be 8 ...

Math
I am sorry Ms. Sue that has me even more confused. Can you explain how you got that answer?

Math
Yes

Math
Combine like terms. 7a square root 2 - a square root 2 + 16= My answer would be as follows: 7a square root 2 + 16 Can you please check to see if I got this correct

Math
I am sorry Ms. Sue I do not understand this.

Math
So would it just be 13b-10?

Math
Combine like terms. 6b plus 7b-10= Would I add 6b + 7b=13b-10 13b-10=3b? Would this be correct? Please advise.

Math
Ms. Sue. I posted two other math questions. Can you look those over. That one makes sense now but what do you do when there is a square root?

Math
So then all you do on this one is add the numbers and just add y at the end?

Math
Combine like terms. 32y plus 5y= I don't know what to do. I don't understand this. Please help.

Math
I am sorry I am very confused. I have never done this type of math.

Math
I am sorry Ms. Sue. I am thoroughly confused on this.

Math
The book shows 7x square root 4 - 5x square root 4

Math
Question. I have some math problems that I really need help with and this is all new to me. The direction are as follows: Combine like terms 7x4 -5x4 the number four is square root. I don't understand at all what to do. Please help.

Math
Evaluate the following expression: (2 x 3)>2 - 5>2 The answer I got was 11...How I got this answer was 6 x 6 = 36 and 5 x 5 = 25 then I subtracted 36-25=11`

math
Use the distributive property to write an expression that is equivalent to the example below: 5(2x + 7) I think my answer is... 45.....How I got this answer was 5 x 2 + 5 x 7=45 10 + 35 = 45 Can you please double check my work?

Math
Which of the following is equivalent to the expression 6m + 3? A)2(3m + 3) B)3(2m + 1) C)3(2m + 3) D)6(m + 3) The answer I got was B) 3(2m + 1). How I got this answer was 3 x 2 + 3 x 1 = 6m + 3.

Math
How do you make a fraction out of 2 tablespoons and 1/4 teaspoon salt?

Math
I don't understand, 1=3/3? how did you get this? I don't understand 2=8/4=4/2 how did you get this?

Math
How do you write at least 6 fractions from the below ingredients list that serves 4 people. 1 cup all-purpose flour 2 eggs 1/2 cup milk 1/2 cup water 1/4 teaspoon salt 2 tablespoons butter , melted How do I make these fractions? PLEASE PLEASE PLEASE PLEASE PLEASE! HELP ME!

Math

Math
Write each percent as a fraction and as a decimal. 7. 72% full 72/100 or .72 9. 500% increase Would it be 500/100 or 500/1000? .500 11. 37% profit 37/100 and .37 Please be so kind as to double check my answers and explain to me if I got anything wrong so I can get a better ...

Science
The above is an article which I had to read for homework and one of the questions that I have to answer is as follows: Which bucket(s) could be supported with evidence from this Document? I do not understand this at all. Please help me.

Science
He believed that all the continents matched up together and formed a supercontinent.

Science
All of the above was highlighted.

Science
For many years it was believed by geologists that the location of the continents was fixed.These scientists believed that the locations of the continents was determined many billions of years ago,as the young Earth cooled down from its original state as a ball of molten lava....

algebra
5digit palidrone 6 - - 5 multiple of 9

math

math
Sorry, I did that whole thing wrong. It is six; 4/24 4m=24 M=6 Miles

math
Yea, I'd do the same :)

math
30 in.? I haven't done this type of stuff in a while.

math
What are the choices?

life orantation
By creating the campaigns that helps people with discrimination and having councillors

life orantation
Make six suggestions on how to combat the violations of human rights identified by you in the previous questions and indicate any organisations you have come about in your research and indicate how they combat the discriminations.

Math
When looking at the problem given in the Video Example 84 –Factoring Out the Opposite of the GCF, located in the media section of Chapter 5, what GCF is first factored out of all terms in the expression

life orientation
Six ways that the human rights violations influences individuals,groups and the broader South African community

life orientation
Six ways that the human rights violation influences

life orientation
it cn lead to substance abuse...

algebra
a woman drove a distance of 240km on the return journey she drove 20km/h faster and took two hnurs less. what was her speed on the outward journey?

Math
how many hours will it take Wendy to make 4 2/3 batches of cookies if she can make 1 1/3 batches in 1 hour

Chemistry
please balance this chemical equation iron +oxygen > iron (III) oxide +energy Fe + O2> Fe2 O3 + heat and light

Lang Arts
ok thanks Mrs. Sue

Lang Arts
I'm going to go with answer A for number 2 which was my original choice but do you know the was question 1 is I still don't know.

Lang Arts
Ok I thought it was either that or B. Do you know what question number one is I don't know.

Lang Arts
"It" is the word that is underlined. @Ms.Sue

Lang Arts
The novel to kill a mockingbird feature a main character named scout. Scout is also the voice that tells the story. What point of view is used in the novel? A.First Person B.Third-Person Limited<=== C.Third-Person Omniscient Identify the antecedent for the underlined ...

Peter nchabeleng
If you live only 800m away from the school. If she leaves her home at the sametime as Constance, how many minutes before Constance will she arrive

Peter nchabeleng
If you live 3,5 km away from school. How long will it take you to walk to school

Math
I don't know, I need someone to explain this.