Saturday

March 28, 2015

March 28, 2015

Total # Posts: 1,227

**I need help with this ALGEBRA**

Yes you were! Good job! Glad I could help. :)
*March 17, 2015*

**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? :)
*March 17, 2015*

**Science**

Glad I could help! :)
*March 17, 2015*

**Science**

I don't think C is right. D. is the correct answer.
*March 17, 2015*

**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))
*March 15, 2015*

**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.
*March 14, 2015*

**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.
*March 14, 2015*

**Math**

Thank you very much. Very clear explanation.:)
*March 13, 2015*

**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)
*March 13, 2015*

**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)?
*March 13, 2015*

**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?
*March 13, 2015*

**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?
*March 13, 2015*

**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.
*March 12, 2015*

**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
*March 6, 2015*

**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:...
*March 4, 2015*

**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).
*March 4, 2015*

**math**

There are 6,975 folders if 1,735 folders were handed out . How many will I have left? 6,975- 1,735=
*February 25, 2015*

**math**

11/21 or 9/17. which one is greater and what is the work/common denominaters
*February 24, 2015*

**Socials**

oh and how much does elizabeth get paid for her jobs? Like 1 pound a week? or..
*February 24, 2015*

**Socials**

Also, how much would ship tickets cost? How would this family "pay" for them?
*February 24, 2015*

**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?
*February 24, 2015*

**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 ...
*February 24, 2015*

**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
*February 23, 2015*

**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
*February 23, 2015*

**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?
*February 20, 2015*

**Socials**

O wow! Thank you all so much, great suggestions!! And yes Reed I actually picked Liverpool too so yay!
*February 20, 2015*

**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 ...
*February 20, 2015*

**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)?
*February 18, 2015*

**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?
*February 13, 2015*

**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. :)
*February 13, 2015*

**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...
*February 13, 2015*

**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?
*February 10, 2015*

**Math**

Wait how do you get that first part?
*February 10, 2015*

**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 ...
*February 9, 2015*

**Percentages ques 2**

Thank you! But does this have anything to do with ratios?
*February 9, 2015*

**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?
*February 9, 2015*

**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?
*February 9, 2015*

**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!!!!
*February 5, 2015*

**math**

where the parentheses in 4=3-1+4/2
*February 3, 2015*

**math**

[4/1]
*February 3, 2015*

**math**

where are the parentheses in 3 times 2 minus 4 divided by 1
*February 3, 2015*

**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!!!
*January 27, 2015*

**math **

does anyone know how could you use an area model to identify the binomial factors of a trinomial? explain
*January 25, 2015*

**Math-polynomials**

1/2n^2 - 3/2n factorization, i got : n/2 (n-3) am i right or wrong?
*January 22, 2015*

**math (factors and products)**

does anyone know how could you use an area model to identify the binomial factors of a trinomial? explain
*January 22, 2015*

**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...
*January 14, 2015*

**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...
*January 14, 2015*

**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.
*January 11, 2015*

**language art**

B
*January 9, 2015*

**language art**

Maybe d.
*January 9, 2015*

**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 ...
*January 9, 2015*

**computer and technology**

b and d. Not sure. I no its not c
*January 8, 2015*

**computer and technology**

I think is b and c
*January 8, 2015*

**computer and technology**

I think is c
*January 8, 2015*

**computer and technology**

A.d. I'm not sure if its right
*January 8, 2015*

**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 ...
*January 8, 2015*

**adding and subtracting rational**

15/16-3/4=
*January 7, 2015*

**adding and subtracting rational**

11/15+1/8=
*January 7, 2015*

**adding and subtracting rational**

-10 11/12-7 1/4=
*January 7, 2015*

**adding and subtracting rational**

5/6+4/9=
*January 7, 2015*

**exponents ,factor,fraction**

Yes
*January 5, 2015*

**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
*January 5, 2015*

**exponents ,factor,fraction**

(X-b)^2+a^2for a=2,b=1,and c=7
*January 5, 2015*

**exponents ,factor,fraction**

7•7•7= 7^3. Or 3^7 Or 21 or 7^4
*January 5, 2015*

**equation and inequalities**

Graph the solution of the equation b-15=-12
*December 30, 2014*

**equation and inequalities**

Write a word phrase for 5 p
*December 30, 2014*

**subtraction rational number**

-11 1/8+15 5/12=
*December 30, 2014*

**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
*December 3, 2014*

**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.
*December 3, 2014*

**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° ...
*November 21, 2014*

**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??
*November 21, 2014*

**Economics help**

Why important is it to consider exchange rates when planning to travel to another country
*November 18, 2014*

**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
*November 17, 2014*

**Calculus Can you help**

yay!
*November 17, 2014*

**Calculus Can you help**

Suppose the functions f and g and their derivatives have the following values at x = 1 and x = 2. Let h(x) = f(g(x)). Evaluate h′(1). X | f(x) G(x) f'(x) g'(x) ____________________________ 1 | 8 2 1/3 -3 2 | 3 -4 2π 5 My answer: -6π but I'm not ...
*November 17, 2014*

**Math help/check**

Suppose the functions f and g and their derivatives have the following values at x = 1 and x = 2. Let h(x) = f(g(x)). Evaluate h′(1). X | f(x) G(x) f'(x) g'(x) ____________________________ 1 | 8 2 1/3 -3 2 | 3 -4 2π 5 My answer: -6π
*November 16, 2014*

**Pre-Cal**

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. These are the answers I have gotten while doing this problem. g'(x)= cosx^2 5tan g'(x...
*November 16, 2014*

**science Help **

Atomic theory is. A Subject to change if new information is discovered. B. A solution to the problem of differing isotopes. C. Unchanged able D. A descriptive table that list all of the element
*November 14, 2014*

**geometry**

What's a sample space???
*November 8, 2014*

**geometry**

Eddie is arguing with tana about the probability of flipping three coins. They decided to flip a penny, nickel, and a dime. Which would be better determining the sample space, a tree diagram or an area model? Justify your answer.
*November 8, 2014*

**geometry**

Use Pythaorean Theorem a^2+b^2=c^2
*November 4, 2014*

**chemistry**

How many molecules are in 105 g of sugar (C12H22O11)? Answer in units of molec
*October 31, 2014*

**chemistry**

How many hydrogen atoms are in 833 grams of water? Answer in units of atoms
*October 30, 2014*

**Math**

x= -4, 9
*October 29, 2014*

**AP Giannini**

Dexter makes a scale drawing of his room. In real life, the room is 10' wide and 12'6" long. In Dexter's drawing, the room is 4"wide, what measure should the length be? explain how you figure this out.
*October 15, 2014*

**chemistry**

how could solid magnesium phosphate be prepared and collected using hydrochloric acid, sodium phosphate solution, water and magnesium? For the answer, write a series of steps that describe the procedure and includes a balanced chemical equation for each step
*October 14, 2014*

**3rd garde math**

what is 12 x 12? im having a hard time can anyone help me??????????
*October 1, 2014*

**Trigonometry**

A volleyball player spikes the ball from a height of 2.44 meters. Assume that the path of the ball is a straight line. To the nearest degree, what is the maximum angle, θ, at which the ball can be hit and land within the court?
*September 30, 2014*

**Physics**

A meter stick weighs 200 grams and is supported at the center. Three masses of 100, 200, and 150 grams are placed respectively, at the 10-cm, 20-cm and 60 cm points of the meter stick. To balance the meter stick, where must a 300 grams weight be placed on the meter stick?
*September 28, 2014*

**Social Studies**

I need a website that has answers to this worksheet: Russia and Eastern Europe: CHERNOBYL - April 26, 1986.
*September 23, 2014*

**physics**

A state trooper’s car sends out a radar signal at a frequency of 13.3 GHz. Find the wavelength of this signal. The wave speed is 2.998 × 108 m/s. Answer in units of m
*September 18, 2014*

**music**

How much music is in your head?
*September 18, 2014*

** math**

Which of the following situations describe quantities that combine to make 0? During the top of the fourth inning of a baseball game, the Ravens scored three runs. During the bottom of the fourth inning, the Raiders scored five runs to tie the game. Jacoby went on a hiking ...
*September 18, 2014*

**math**

a plane flew for 4hrs, 30 miles per hour and an adverge speed of 515 mph how far did it fly?
*September 17, 2014*

**AP CALC. AB **

1.Locate the discontinuity of the function y=1/(1+sin x) 2.Suppose that f is a continuous function defined for all real numbers x and f(-5)=3 and f(-1)=-2 . If f(x) = 0 for one and only one value of x, then which of the following could be x?
*September 14, 2014*

**AP CAlc. AB Please helppp!! **

f(x)=|x|+1 Let A(r) be the enclosed by the x axis, the line x=-2, the graph of the function f, and the line x=r for any r=>-2 A) Write A(r) as a piecewise function with its joints at r=0 Please walk me through each step i am really confused!!
*September 8, 2014*

**AP CAlc. AB**

Thank you so much Steve!!!
*September 6, 2014*

**AP CAlc. AB**

limit x->0 (3k+k(x^2) sin(1/x)), if k is a positive constant
*September 6, 2014*

**comprehension**

Thank you so much!!!!
*September 5, 2014*

**comprehension**

can you please explain to me how it is 8 days so i can learn?
*September 5, 2014*

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