# Posts by LILY

Total # Posts: 1,602

**Social Studies**

What are the causes of the water pollution that threaten South Asia today? overpopulation, growing cities, damming of rivers, and the need for more irrigation burning down of forests, building of new factories, and more cars the use of major rivers in religious festivals ...

**Math**

How do you find the quadratic equation, in standard form, that has the roots x= (2±√5)/3

**Math**

Apply the following transformations to this parabola. Y=2(x+3)^2-1 A) reflection in the x-axis, followed by a translation 5 units down. I got : y = -2(x+3)^2-6 But the answer is y= -2(x+3)^2-4 Why is it -4 And also. How odd you do reflections in the y axis without drawing the ...

**Math**

Determine one of the zeros of the quadratic realtion: y=(x-(k/2))^2-[(k-2)^2/4] I tried to do this by expanding and got to y=x^2-mx-k+1 How are you suppose to do this

**Math**

A tangent is a line that touches a circle at exactly one point. For what values of k will the line y= x+k be tangent to the circle x^2+ y^2 = 25? I know I'm suppose to use the properties of a discrimminate. But how

**Math**

in the relation y=4x^2+24x-5, for which values of y will the corresponding equation have no solutions The answer is y<-41. But I got that y>656 by using d=b^2-4ac

**Math**

The equation x^2 + k = 6 x has two distinct real roots. Find the range of values of k. I know that you do 36 -4k > 0 -4k > -36 k < 9 But I don't get why you switch the signs. So. When do u switch signs

**Socials**

With your descriptions, yes the Canadian government was very similar to American governments.But how do they negotiate?

**Socials**

I am writing an essay for socials and the topic is: To what extent was the treatment of First Nations by the Canadian government justified? So far, I plan to explain both sides but lean more to the unjustified side(2 body paragraphs on that). My points are: the treaties and ...

**education**

Just want to know what these questions are asking for. thanks What view do you have of the children's skills and competencies? In what ways do you need to transform your view of children to see them in a more positive light? what skills do you want to strengthen in ...

**chemistry - kinetics**

-1150.75

**Language Arts**

1. b 2. a 3. d 4. c

**socialstudies**

How about you read your books?

**social studies**

B. ;-)

**science PLZ HELP**

Just took the practice, these are the answers. In this order 1 - 14. 1. A 2. B 3. A 4. B 5. C 6. C 7. A 8. B 9. C 10. A 11. B 12. A 13. B 14. A [true]

**math**

In quadrilateral QRTS, we have QR = 11, QS = 9, and ST=2. Sides line RQ and line ST are extended past Q and S, respectively, to meet at point P. If PS = 8 and PQ = 5, then what is RT?

**CHECK ANSWERS PLEASE!!!**

I don't get why number 4 is D. I thought it would be B. Caan someone please explain?

**I need help with this ALGEBRA**

Yes you were! Good job! Glad I could help. :)

**I need help with this ALGEBRA**

v=20√(273+t) 329 = 20*sqrt(273+t) 16.45 = sqrt(273+t) 273+t = 16.45^2 t- 16.45^2-273 t = -2.4 degrees celsius Hope that helps? :)

**Science**

Glad I could help! :)

**Science**

I don't think C is right. D. is the correct answer.

**Algebra**

1. Solve log(4/x) (x^2 - 6) = 2. (note: the (4/x) is underscored) 2. Show that loga [(x + {sqrtx^2-5}) / 5] = -loga (x - (sqrtx^2-5))

**Algebra**

1. Solve: log (y-1) = -log(y-9) 2. Find the inverse of the logarithmic function f defined by f(y)= 2log5 (2y-8)+3.

**Math**

1. Solve: log (y-1) = -log(y-9) 2. Find the inverse of the logarithmic function f defined by f(y)= 2log5 (2y-8)+3.

**Math**

Thank you very much. Very clear explanation.:)

**Math**

1. Solve for y in the equation 15 * 3^(y+1) - 243 * 5^(y-2) = 0. 2. Solve: log y-1 = -log(y-9)

**Math**

1. Find the inverse of the logarithmic function f defined by f(y) = 2 log5 (2y-8) + 3. 2. If x > y > 1, what is the largest possible value of logx (x/y) + logy (y/x)?

**Math**

1. The sequence log2 32, log2 y, log2 128, ... forms an arithmetic sequence. What is the value of y? 2. If log a^2 b^3 = x and log (a/b) = y, what are the values of log a and log b?

**Math**

1. Find all values of p so that 6p, 4p-1, p^2 - 1 will be an arithmetic sequence. 2. The common ration of a geometric sequence is -3. IF the terms of this sequence are 3y, y+6, z+1, ..... respectively, what is the value of z?

**Chemistry**

A chemist reacts 112 g of iron with 72 g of water. State which reactant is the limiting reagent. Calculate what is the maximum yield in grams of Fe3O4 that could be produced in this reaction. For the substance that is not the limiting reagent, calculate the amount in excess.

**Health**

1:According to MyPlate which two food groups should you consume in the largest amounts? A:Fruits And Grains B:Grains and Protein C:Protein and Veggies D:Veggies and Grains

**Geometry**

1. If triangles EIO = UAN, EI = 3x-4, IO = 2x+5, UA = 2x+3 and UN = 3x+1, solve for the value of x, find the perimeter of triangle UAN and identify the smallest angle in triangle EIO. 2. If triangle FAT is equal to triangle GRC, FA = 24cm and the ratio of GR, RC and GC is 2:1:...

**Algebra**

True or False and please explain so that I can understand. Thank you. 1. (1,0) is always a point on the graphy of y = logb (x). 2. If x=b^2y for b > 1, then y = 1/2 logb (x).

**Science 8th Grade**

Yes, that is correct.

**math**

There are 6,975 folders if 1,735 folders were handed out . How many will I have left? 6,975- 1,735=

**math**

11/21 or 9/17. which one is greater and what is the work/common denominaters

**Socials**

oh and how much does elizabeth get paid for her jobs? Like 1 pound a week? or..

**Socials**

Also, how much would ship tickets cost? How would this family "pay" for them?

**Socials**

Oh nice! Thank you so much Reed, I really appreciate your help. I am reading the links right now! I guess since land grants were discontinued in 1827 my character would immigrate before this date?

**Socials**

A few days ago I posted a question about an immigration diary during the great migration period(I will link it in a comment below) in which Ms Sue and Reed replied with some tips- thank you. I am starting to write some of the diary and I still have a few questions that I have ...

**5th grade math**

1???

**algebra**

A package of modeling clay was shaped like a cone with a radius of 25 cm and a height of 7.2 cm. Miriam used all the clay to make a cylinder with a radius of 15 cm. What was the height of the cylinder? Express the answer to one decimal place and use 3.14 to approximate pi. cm

**algebra**

A package of modeling clay was shaped like a cone with a radius of 25 cm and a height of 7.2 cm. Miriam used all the clay to make a cylinder with a radius of 15 cm. What was the height of the cylinder? Express the answer to one decimal place and use 3.14 to approximate pi. cm

**Socials**

Oh but my expectation vs reality question wasn't answered! Were they really shocked when they got there and why were they shocked? Any other factors other than eavily forested areas?

**Socials**

O wow! Thank you all so much, great suggestions!! And yes Reed I actually picked Liverpool too so yay!

**Socials**

Note: My questions are below mostly in brackets and at the very end! I have to do an immigration diary assignment and I am to portray a young 12 year old girl(any English name suggestions?) from a city in England(what is a realistic city during that time?) who is migrating to ...

**Math**

How do you find the component form AND the magnitude of the vector v with initial point (1, 11) and terminal point (9, 3)?

**Math Check**

Oh yeah, I'm sorry about that. It is suppose to be d^2; I made a typo error. So would you say that #1 and #2 are done right?

**Math Check**

Oh and this a worksheet. It's called "Pod Racing" and it's on Google if you need to see it up close. :)

**Math Check**

I need someone to please check this for me. Thanks! :) Question: Tonto Pagalies (brother to vaporized racer Teento), an observer at Bindy Bend, is 14285’ from Desert Plain. He knows that there is a right angle between the lines of sight from Bindy Bend to Desert Plain and...

**Math**

I really don't know I need help on this question

**Computers**

HI is correct! 100% Tysm!

**Math**

If x and y are positive integers such that x^2+y^2=13 and x>y, what is the value of x-y?

**Math**

Wait how do you get that first part?

**Math Question**

Hello! I need help with this question. I have an answer but I wanted to make sure it's correct. Thanks! Question: Which of the following is NOT a trigonometric identity? Answers Given: A.) 1-cos^2x=sin^2x B.) sin^2x+1=cos^2x C.) 1+cot^2x=csc^2x D.) sec^2x-1=tan^2x My ...

**Percentages ques 2**

Thank you! But does this have anything to do with ratios?

**Percentages ques 2**

car A costs 20 percent less than car B. Car B costs twice as much as Car C. The cost of Car C is what percent of the cost of Car A? How do I set up this question? What should the process of thinking be for these questions?

**Percentages**

A team has won 60 percent of the games it has played so far. If the team wins the 15 remaining games in the season, it will have won 80 percent of the season's games. How many games will the team play over the entire season?

**Science - chemistry**

Hi Im in year 7 and to get a level 6 we have to explain the big idea of energy. Our project is about the reation of iron and sulphur to make iron sulphide. We have been told to explain using the big idea of energy. pls help me asap!!!!

**math**

where the parentheses in 4=3-1+4/2

**math**

[4/1]

**math**

where are the parentheses in 3 times 2 minus 4 divided by 1

**chemistry(limiting reagent)**

Al2(SO3)3 + 6NaOH ----> 3Na2SO3 = 2 Al9OH)3 If 10.0g of Al2(SO3)3 is reacted with 10.0g of NaOH, determine the limiting reagent? help!!!

**math**

does anyone know how could you use an area model to identify the binomial factors of a trinomial? explain

**Math-polynomials**

1/2n^2 - 3/2n factorization, i got : n/2 (n-3) am i right or wrong?

**math (factors and products)**

does anyone know how could you use an area model to identify the binomial factors of a trinomial? explain

**Science**

It is B, trust me. It IS B.

**Calculus**

A balloon is rising at a constant speed of 5 ft/sec. A boy is cycling along a straight road at a constant speed of 15 ft/sec. When he passes under the balloon, it is 5 feet above him. Determine how fast the distance between the boy and the balloon is increasing 3 seconds after...

**science Help**

How did the discovery of the electron change the atomic model? A.it disaproved the earlier idea of an indivisible atom. B.it confirm that atom are very tiny. C. It exposed fraudulent experiments conducted by unqualified scientists. D. It proved that atom are easier to see than...

**math**

the number line below shows an estimate for the sum of 6/13 and 1/8. explain why the sum is greater than 1/2.

**language art**

Maybe d.

**language art**

In all together now Jordan states that there were marches and protest against segregation and discrimination in the 1960s. What make this statement a fact? A.it was stated In persuasive essay b. It is an emotional statement. C.it can be proven in an encyclopedia. D.it reveal ...

**computer and technology**

b and d. Not sure. I no its not c

**computer and technology**

I think is b and c

**computer and technology**

I think is c

**computer and technology**

A.d. I'm not sure if its right

**computer and technology**

It is important to verify internet source because. ----- choose that apply. A.the source should be written by real author. B.anyone can create a website and write false or inaccurate information on it c.you need to make sure it is owened by a government agency. D.websites can ...

**adding and subtracting rational**

15/16-3/4=

**adding and subtracting rational**

11/15+1/8=

**adding and subtracting rational**

-10 11/12-7 1/4=

**adding and subtracting rational**

5/6+4/9=

**math**

9.5x11.00=104.5 104.5x1.07=111.815 $111.82

**exponents ,factor,fraction**

Yes

**exponents ,factor,fraction**

The glee club has a set of 48 classical CD and a set of 42 show tune CD. Each set can be divided equally among the club member.what is the greatest possible number of club member. A.12. B.3. C.6. D.336

**exponents ,factor,fraction**

(X-b)^2+a^2for a=2,b=1,and c=7

**exponents ,factor,fraction**

7•7•7= 7^3. Or 3^7 Or 21 or 7^4

**equation and inequalities**

Graph the solution of the equation b-15=-12

**equation and inequalities**

Write a word phrase for 5 p

**subtraction rational number**

-11 1/8+15 5/12=

**Algebra**

w*9=9

**L.A help please**

Dick H. IV is right! I got a 100%! Thank You So Much!!! :D

**Math**

what would be the x intercept

**chemistry**

What is the solubility of calcium fluoride in a buffer solution containing 0.45 M formic acid and 0.20 M sodium formate? Given: Ka for formic acid = 1.7 x 10-4 Ka for hydrofluoric acid = 6.8 x 10-4 Ksp for calcium fluoride = 3.4 x 10-11

**chemistry**

A voltaic cell is constructed with all the reactants and products in their standard states. Will this condition hold as the cell operates? Explain.

**Social Studies**

Yeah, A,C,A,B is correct, thought they were being asses and went with D, but it was actually C :/

**Precalc**

Two lookout towers are situated on mountain tops A and B, 4 mi from each other. A helicopter firefighting team is located in a valley at point C, 3 mi from A and 2 mi from B. Using the line between A and B as a reference, a lookout spots a fire at an angle of α = 38° ...

**math**

Mandy is enlarging a photo that is 3 in. wide and 4.5 in long. if she wants the width of the enlargement to be 10 in, what will be the length??

**Math Help!!!**

(x, y) = ( (-2+1), (-5+3) ) = (-1 , -2 )

**Economics help**

Why important is it to consider exchange rates when planning to travel to another country

**Derivatives**

If g(x) = tan (5x2), then g ′(x) = ? I've worked this problem out like four times already and I keep getting a complete different answer..So I think I'm doing it wrong. I keep getting these.. g'(x)= cosx^2 5tan g'(x)= 2cosxtan^2