# 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**

I really need help with this please help me. 360 kilometers is 24% of ______kilometers

**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**

Yea, it's six, my bad:o

**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.

**7th grade math**

Arithmetic

**Finance**

P0 = D0 (1 + g) / (R – g) P0 = $11.45(1 – .045) / [(.11 – (–.045)] P0 = $70.55

**Finance**

P0 = D0 (1 + g) / (R – g) P0 = $11.45(1 – .045) / [(.10 – (–.045)] P0 = $70.55