Questions Asked on
January 26, 2009

  1. Physics - Waves

    A harmonic wave is traveling along a rope. The oscillator that generates the wave completes 40.0 vibrations in 30.0 s. A given crest of the wave travels 425 cm along the rope in a time period of 10.0 s. What is the wavelength?

    asked by Nami
  2. chemistry

    Solid zinc and aqueous hydrogen sulfate reacts to produce hydrogen gas and aqueous zinc sulfate Is this the right answer Z(aq)+HS equals H(G) ZS? if not can u please correct me

    asked by Lauren
  3. Poem: A Voice by Pat Mora

    Could you please check my answers thanks 1.What happens when the mother goes to the state capitol to give her speech? Answer: When the mother goes to the state capitol to address her speech she wanted to hide her face. Also she faked hoarseness, and she

    asked by Remy
  4. Chemistry

    how do you write a chemical equation with this reaction? can u help me solve these 1.Liquid carbon disulfide reacts with oxygen gas, producing carbon dioxide gas and sulfur dioxdie gas. 2. Solid zinc and aqueous hydrogen sulfate reacts to produce hydrogen

    asked by Lauren
  5. chemistry

    explain why the pure solvent shows a level horizontal curve as solidification occurs, but the curve for the solution slopes downward slightly. The solvent is BHT and the added particles are an unknown compound. My reasoning is that it happens because the

    asked by Unsure
  6. I just posted chinese!!

    um, i don't think it appears really well on my monitor (is it just mine or...) if you can't see it, could you please give me your email add so that i can email it to you and you can check the mistakes? please help me...

    asked by Jennifer
  7. Science-Chemistry

    1)Fill in the blanks. In a liquid, particles are _____arranged. They move about in ____ directions and slide over one another. Can I say "irregularly" & "any" as the answers? I know "random directions" is better, but can we accept "any directions"? 2) When

    asked by anne
  8. Math

    Period 1 has 15 students in it and a test average of 86%. Period 2 has 21 students in it and an average of 88%. Period 3 has 12 students in it and an average of 95%. Use weighted means to find the overall average of the classes.

    asked by John
  9. Geometry

    A new pipeline is being constructed to re-route its oil flow around the exterior of a national wildlife preserve. New pipeline 60 miles , 32 miles, x=old pipeline. About how many extra miles will the oil flow once the new route is established? A. 24 B. 68

    asked by Taylor
  10. microeconomics

    consider total cost and total revenue given in the table bellow: quantity total cost total revenue 0 $8 0 1 $9 8 2 $10 16 3 $11 24 4 $13 32 5 $19 40 6 $27 48 7 $37 56 a. Calculate profit for each quantity. How much should the firm produce to maximize

    asked by sara
  11. physics

    solve for H: V=LWH

    asked by Simon
  12. chemistry

    An aspirin tablet weighing 0.475 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric flask. Exactly 3.00 mL of

    asked by leah
  13. physics

    A vibrator moves one end of a rope up and down to generate a wave. The tension in the rope is 58 N. The frequency is then doubled. To what value must the tension be adjusted, so the new wave has the same wavelength as the old one? would it be doubled?

    asked by Sierra
  14. english

    I have to write an essay about the poem "The word is too much with us" by william Wordsworth. I have to talk about content and how he uses poetic devices to make his argument. Anyways, I'll probably be posting parts of essay through out today, so can you

    asked by Anonymous
  15. English

    Hi i am writing a response paper for "Cathedral" by Raymond Carver. Im not sure but is this a proper thesis statement. In the short story Cathedral, by Raymond Carver, a man refers to Robert as "this blind man." Not only is he categorizing Robert, but he's

    asked by Jake
  16. Physics

    John's approval rating is an average based upon 4 categories. What is his overall weighted rating if the following is true? Category 1= 450 points weight factor 1 Category 2= 475 points weight factor 2 Category 3= 500 points weight factor 1 Category 4= 400

    asked by Sam
  17. physics

    A rocket is launched straight up with constant acceleration. Four seconds after liftoff, a bolt falls off the side of the rocket. The bolt hits the ground 6.40 s later. What is the rocket's acceleration?

    asked by Michael
  18. physics

    During an experiment that Paul and Dawn performed the stretch of a spring was directly proportional to the force applied to the spring. When they put the data on a graph, they would expect to have what type of curve? Answers: Hyperbola, parabola, straight

    asked by Lily
  19. Physics - Sound

    A sound wave travels in air at a frequency of 500 Hz. If part of the wave travels from air into water, does its frequency change? Does its wavelength change? Note that the speed of sound in air is about 340 m/s, whereas the speed of sound in water is about

    asked by Sam
  20. Dr Bob

    On preparation of a solution of protein, you attempted to dissolve the substance in water, but a suspension resulted. Drop-wise adition of NaOH solution, with stirring, eliminated the suspension. Addition of acid to the original suspension had no effect.

    asked by Andrew
  21. algebra

    Direct and Joint Variation 2. The volume V of a rectangular prism of a particular height varies jointly as the length l and the width w, and V = 224 ft when l = 8 ft and w = 4 ft. Find l when V = 210 ft and w = 5 ft.

    asked by bob
  22. history

    What is Anne franks legacy?

    asked by Ariana
  23. Physics

    An equilateral triangle has sides of 0.17 m. Charges of -9.0, +8.0, and +2.2 µC are located at the corners of the triangle. Find the magnitude of the net electrostatic force exerted on the 2.2-µC charge.

    asked by Z
  24. AP biology

    question 5 asks how did the KOH affect the water movement in the respirometer. Does anyone know the answer cuz i drew a blank on that one.

    asked by Jenner
  25. algebra

    What are the similarities and differences between functions and linear equations? Are all linear equations functions? Is their a time when a linear equation is not a function? and why.

    asked by tera
  26. Code of Conduct

    I was charged with a violation of the code of conduct at my University and I am not guilty. I need to write a great letter of Appeal to reverse the charges and continue with my education. Can someone help me write a letter of appeal????

    asked by Kay
  27. Algebra B (probability)

    I just don't understand how to do this... A kidney-shaped swimming pool is located in a rectangular back yard. The sides of the pool consist of four connecting semicircles. A parachutist is hired to land in the back yard during a party. Assuming the

    asked by Arika =]
  28. Chemistry

    write the following chemical equation for this equation In water,iron (III) chlroide reacts with sodium hydroxide, producing solid iron (III) hydroxide and sodium chloride? can you help me figure this out I am confused

    asked by Ashley
  29. To Bill -- psychology

    I've removed your 20-question, multiple choice post. Your instructor assigned this exercise/test to find out what YOU know. If you have a problem with a couple of the questions, please post them along with your thoughts about possible answers. Then we'll

    asked by Ms. Sue
  30. physics

    manipulate the following equation to solve for t: s=1/2a t^2.

    asked by Heather
  31. Math word gr 8

    For the month of January, the average afternoon temperature in Calgard is 1/4 the average morning temperature. The average afternoon temperature is -4 C. What is the average morning temperature? a.) If m represents the average morning temperature, what

    asked by Tyler
  32. Science

    1) Instead of using the word "random",is it acceptable to say particles in a liquid move about in "different" directions? 2) Why does ice have a higher density than water vapour? Is it because ice has a greater mass in a fixed volume? 3) The statement

    asked by anne
  33. biology

    how much time do cells spend in each phase of the cell cycle?

    asked by SMITHly
  34. chemistry

    CaCl2 ---> Ca2+ + 2 Cl- i'm trying to figure out the van't hoff factor. i know i=3. But where did the 2 come from before Cl-.

    asked by Anonymous
  35. math

    write a word problem involving the number of pages in a book. then write the numerical expression that you would need to use to solve your problem.

    asked by michelle
  36. Chemistry-please help

    1) Metals that are above hydrogen in the reactivity series react with dilute hydrochloric acid to produce hydrogen gas. Lead is just above hydrogen in the reactivity series.I read a book that says no reaction occurs between lead & dilute acid. Why? Is it

    asked by candy
  37. Math

    There are seven red, five blue, and eight white chips in a bag. What is the probability of pull out a blue or white and then quickly putting it back in the bag and pulling out another blue or white, making a combination of one blue and one white.

    asked by John
  38. Algebra

    4a-2 (less than or equal to) a + 1 (less than or equal to) 3a + 4 I'm assuming I should put this on a line, like I did with some other problems on my worksheet, right? But I have no idea how I would show 4a-2 on a line! I have no idea how to do this. Thank

    asked by Harper
  39. math

    what is the unit rate of 4/12

    asked by keyon
  40. english

    I need help unscrambling this word!!!! AAAATTTLIIRRONNME its two words and its a name of a mall!

    asked by lily
  41. math

    Direct and Joint Variation 2. The volume V of a rectangular prism of a particular height varies jointly as the length l and the width w, and V = 224 ft when l = 8 ft and w = 4 ft. Find l when V = 210 ft and w = 5 ft.

    asked by bob
  42. Physics

    Using the following equation: F=ma Solve for m.

    asked by Joe
  43. chemistry

    hi this is a question for my lab. explain why the addition of bromine to trans-cinnamic acid takes place more slowly than the addition of Br2 to a normal alkene like 3-hexene or cyclohexene thankss

    asked by steve
  44. Science

    Blow up a balloon & tie it up. Measure its diameter with a measuring tape. Place it in a freezer for at least an hour.Predict what happens to the balloon after some time in the freezer when its diameter is measured again. The answer given is,"The balloon

    asked by beatrice
  45. Chemistry

    These are the problems I am having trouble with. 1.The first step of the synthesis is described by the reaction below. When 1.750 g of Fe(NH4)2(SO4)2 6H2O is mixed with 13 mL of 1.0 M H2C2O4 , the theoretical yield of FeC2O42H2O is how many grams?

    asked by Thanh
  46. Algebra

    Foam fingers sold for $5. Spirit bracelets for $4. You sold 40 more foam fingers than bracelets and earned $965. Write a system of equations to describe this situation. Solve this system using as least 2 different methods. Explain each method.

    asked by Jake
  47. math

    What is the difference between a domain and a range? Describe a real life situation that could be modeled by a function.

    asked by tera
  48. re-chem please

    if i had a beaker with .0001M of Cu solution and copper solid (anode) and another beaker with 1M Cu solution and Cu solid (cathode), how would i calculate the half reactions of these two? would the two equations be: cu2+(aq) --> Cu(s) + 2e- and ?

    asked by sarah
  49. Math

    Find the slope of the line containing the two points (1,-1) and (-5,-3).

    asked by Abbey
  50. chemistry

    If Pdcb replaces naphthalene as an active ingredient in mothballs , what is the value of kf for camphor if a 0.260 m solution of PDCB in camphor decreases the freezing point of camphor by 9.8 degrees C. I am sure that you will use the formula ^T=-kfm.

    asked by betsy
  51. Chemistry

    An unknown was prepared with the concentration of 0.000520 M. A Beer's Law plot was prepared using the absorbance values from standard solutions of ASA and a line drawn through all the points passed through the origin with a slope of 1550.2 M–1. The

    asked by bon
  52. CHemistry....Please help...DrBobb

    I posted this up yesterday: I have to use the equation : density= mass/ volume: But i don't know how to find out the volume using the edge length of the unit cell which is 5.88* 10^2 pm. CHemistry....Please help - DrBob222, Sunday, January 25, 2009 at

    asked by Saira
  53. english

    I need help really quick unscrambling this word!!! AAAATTTLIIRRONNME Its two words and its the name of a mall. the first words starts with I and the second starts with M. Pllllleeeeeeeeaaaaaasssssee help!!thanx

    asked by lily jay
  54. math

    Rebecca is a chef at Denny's Deli. She wants to try a new recipe, Sweet Potato Salad with Orange-Maple Dressing. The receipe, which serves 16, requires half of a cup of golden raisins. She wants to make enough of the salad for 104 servings. How many cups

    asked by Briana
  55. 8th grade

    People can be left-handed, right-handed or ambidextrous. The number of boys in Canadian secondary schools who are left handed is about 1/7 the number of boys who are right-handed. About 11% of boys are left-handed. Write and solve an equation to determine

    asked by Tyler
  56. chemistry please

    if i had a beaker with .0001M of Cu solution and copper solid (anode) and another beaker with 1M Cu solution and Cu solid (cathode), how would i calculate the half reactions of these two?

    asked by sarah

    how do i reword this sentence to a 9th grade leverl. students know that charged particles are sources of electric fields and are subject to the forces of the electric fields from other charges.

    asked by marie
  58. chemistry

    Hi. We did an experiment on Quantitatve Determintion of Total Hardness in Drinking water by Complexometric EDTA Titration and I have a lot of questions. 1. What is the concept of complexometric titration and water hardness? (Why is it expressed in ppm

    asked by jed

    Find the x-coordinate of the absolute minimum of f(x) = x^3 - x^2 - x +1 on the interval [-2, 2] The function f(x) = x^3 - 2x^2 is increasing on which of the following intervals? a)x4/3 only 0

    asked by JIM
  60. physics

    In what two situations will a car have balanced force?

    asked by Keely
  61. English+D.O and I.O

    Can someone teach me how to locate direct objects and indirect objects in a sentence?

    asked by Chopsticks
  62. Physics

    A small plastic ball of mass 6.30 10-3 kg and charge +0.150 µC is suspended from an insulating thread and hangs between the plates of a capacitor (see the drawing). The ball is in equilibrium, with the thread making an angle of 30.0° with respect to the

    asked by Z
  63. accounting

    How do you think the accounts receivable system contributes to the overall success of a business? What impact does the accounts receivable systems has on cash flows and on customer service?

    asked by China
  64. English

    Hi i am writing a response paper for "Cathedral" by Raymond Carver. Im not sure but is this a proper thesis statement. In the short story Cathedral, by Raymond Carver, a man refers to Robert as "this blind man." Not only is he categorizing Robert, but he's

    asked by Jake
  65. math

    5(x+4)+2x=6-4(2x+3)+7 The answer my calculator gives is -19/15. How did they get that?

    asked by Zi
  66. MATH


    asked by lANEY
  67. algebra 1

    sqr 10 times sqr 16 over sqr 5

    asked by mike
  68. biology

    what would happen if you treated a protein (containing 3 S-S bonds) with urea and mercaptoethanol? I know that the urea breaks hydrogen bonds and that the mercaptoethanol reduced disulfide bonds but what levels of the protein would be affected?

    asked by kayla
  69. Algebra

    Solve 3x +1 < 5 or 3x +1 > 4 By saying "solve," is it asking for me to show it on a line and in interval notation? Here's another: f(x) < 3 and f(x) > 4, where f(x) = 1/2x - 7 I have no idea how to solve this! Please walk me through it! Thank you so much!

    asked by Harper
  70. grammar

    Base words that have the following suffixes: ment, less, en, able please help

    asked by mouse-e-mouse
  71. Physics

    Problem 1 (5 Points) In the first application of interferometric methods in radio astronomy, Australian astronomers observed the interference between a radio wave arriving at their antenna directly from the Sun and on a path involving reflection from the

    asked by Jimmy
  72. science

    i have a question and i have no answer to it..... How does atmosphetic pressure change as you move away from the surface of Earth. i think the answer is gravity, I THINK NOT S.U.R.E. OF IT...................................................... thank

    asked by elenny
  73. biology

    what would happen if you treated a protein (containing 3 S-S bonds) with urea and mercaptoethanol? I know that the urea breaks hydrogen bonds and that the mercaptoethanol reduced disulfide bonds but what levels of the protein would be affected?

    asked by kayla
  74. chemistry

    What is the % transmittance for each of these errors Washing a cuvette with DI water, then failing to rinse it with the solution to be measured Failing to wipe off fingerprints from the cuvette. Changing the wavelength from maxtomax+10 nm.

    asked by leah
  75. French

    WE are learning the subjunctive and we have a worksheet where we put the right tense of the word in parentheses in the blank. The question I am confused on is: Habituellement, apres qu'ils (finir)_______ leurs devoirs, leur mere les laisse regarder la

    asked by Deanna
  76. math

    eric has a baseball card collection in 3 albums. the smalles number of cards in an album was 54. the greatest number of cards was 72. what is the total number of cards eric has in his collection

    asked by Kel
  77. biology

    I would connect Mitosis with Identical cells. Why?

    asked by Taylor
  78. english

    For my english assignment i need to write a story about George and the Dragon. please could someone help me find a website that can help me write my story.A children`s version would be great . thankyou

    asked by Dreamer
  79. english

    What does it mean when someone says "Ads talk to...our subonscious fears and desires." ?? Give an example of an ad that does this..Please help :)

    asked by Yana
  80. Eth 125 cultural diversity

    journal entry of subordinate group member

    asked by ann
  81. advertising

    Does anyone know just how effective advertising a business or service is in a free publication that is mailed out to just anyone and left at free pick up points around a geographical area?

    asked by Roger
  82. Geo - in french

    I had to find some definitions for geography. I know the french isn't good...but i'll correct that. My definitions aren't very long...and i need help on expanding them SIDA: Le syndrome de l'immunodéficience acquise (en Anglais c'est AIDS – acquired

    asked by Anonymous
  83. Algebra

    Help, how do I do these? 1. 8y+4(2+y)=3(y-4)+10y 2. Square root symbol 81 -|-8+17|+3 the sqaure root symbol doesn't hang over the entire equation, just the 81. thanks

    asked by K
  84. Asap can someone pplz check these answers

    Please check my answers I have 2 do other things right now

    asked by Remy
  85. algebra

    hi jiskha. how do you solve x-4/x+2 + 2/x-2 = 17/x^2-4? I factored it so it became x-4(x+2)(x-2)+2(x+2)(x-2)=17, but I don't know where to go from there. thanx!!

    asked by Alec
  86. 5th grade

    How do you add fractions with different denominators?

    asked by Anonymous
  87. Algebra

    Can someone help me with this please?? Find the volume of a cube on which the diagonal of a face measures 2. ACUBERT(2) B8 C12 D2 SQRT(2) E4 F6 SQRT(2)

    asked by Tim
  88. hypothesis test

    I am confused on what statistic test I should perform. I think it should be the t-test, which I have provided below. If the t-test is correct, how do I decide if I need to reject the null hypothesis. I get really confused on these things. Null Hypothesis:

    asked by mchawk
  89. Geo

    I had to find some definitions for geography. I know the french isn't good...but i'll correct that. My definitions aren't very long...and i need help on expanding them SIDA: Le syndrome de l'immunodéficience acquise (en Anglais c'est AIDS – acquired

    asked by Anonymous
  90. science

    why do you think some stalactites grow without a stalagmite below them, or some stalagmites grow without a stalactite above them?

    asked by Bianca
  91. 7th grade

    Does anyone know the meaning of either of these quotes self-respect is unconditional positive regard for self and respect is being able to accept people as perfect indiviuals that they are?

    asked by Brooke
  92. chemistry

    1. How do you know that NO2 (with a negative charge 1) is an anion and not ionic compound? 2. What are the SI standard units for length and mass? Why ins't there a standard SI unit for volume?

    asked by becca -- got final exam tomorrow help!
  93. ssWG

    What is the name of the large gulf on the northern coast of australia? please please help

    asked by elenny#1T0090
  94. chemistry

    -Why do most atoms form chemical bonds? -What is the purpose of control in an experiment?

    asked by Jenny
  95. 7th grade

    What is a word that starts with the letter U?

    asked by Courtney
  96. Physical Science

    When attempting to solve a gravitational potential energy equation, is the free-fall acceleration always 9.8m/s2?

    asked by Monique
  97. Pre-Algebra

    How would I make a frequency table with these numbers?: 465,599,567,529,243,250,268,319,294,316,325,364,358,237,270,534,479,614,283,575,591,555,508,609,584,304

    asked by Lily
  98. math

    In y=mx+b, the y-intercept is given by the value of m. True or False

    asked by Jack
  99. algebra

    Graph y=2x+1, then choose 3 points above the line. Give the coordinates of each point and tell wether it is greater than, less than or equal to 2x + 1 at each point.

    asked by Jake
  100. Algebra

    How do you factor c^2+3c-1? Thanks for your help -Elise

    asked by Elise
  101. Human Resource Management

    Can someone help me with this because I cannot find in information on this one. What are the special challenges in reliability and what would be the impacts on employees and employers if the challenges were not addressed?

    asked by Anonymous
  102. History

    Is there a founder of Hinduism and if there is who is it?

    asked by Sor
  103. Math

    At the end of five days, Joseph had saved $30. If each day he saved $2 more than the day before, how much money did Joseph save each day?

    asked by Colby
  104. History

    Where can i find information on Confucianism?

    asked by Jasmine
  105. biology

    I will connect Gametes with A.Chromatid B. Cell C. Cell Division D. 46 E. IPMAT F. Cytokinesis AND WHY?

    asked by Taylor
  106. algebra 1

    1 over 2 sqr 32 times sqr 2 simplify the expression

    asked by mike
  107. Is this a metaphor?

    "Listen, your my prize pupil." Is he comparing the other person as a prize pupil without using like or as?

    asked by Lee
  108. Re

    Can you give me 10 facts on living churchyards.

    asked by Anonymous
  109. english2

    This is my next paragraph after the intro and consists of the summary. 1) Is the last line of my paragraph necessary? Does it belong somewhere else My next few paragraphs will about the content of the poem and what different phrases mean. Is that a good

    asked by Anonymous
  110. Science Fair Project

    I need some good ideas on salty and sour foods to use in my project. Anything will be helpful.

    asked by Lindi Sibongo
  111. Business Law

    Superior Used Cars Ltd. has as the most prominent display on its lot an immaculate, highly polished model which rotates slowly on a raised circular platform under powerful floodlights. The price is on the windshield - $17,700.00. Walking home one evening,

    asked by Lisa
  112. Poem: Beware do not read this poem by Ishmeal Reed

    Could someone please check these ASAP! 1. What story does the poem tell in the first three stanzas? Answer: The story that the poem is telling is a women who lived amoungst mirrors had locked herself in her house, and two villagers broke in, and she

    asked by Remy
  113. English

    Does anyone know how I can relate this quote too the real world ? Quote : "Respect is being able to accept people as pergect individuals they are" .

    asked by Brooke
  114. math

    In the number 2,763.4 what is the place value of the 6?

    asked by fourth grade
  115. geography

    what is the latitude and longitude of australia and united states of america

    asked by jodi
  116. 8th grade - math

    3 = y/-4 Does y = 12? Show the work

    asked by Tyler
  117. MATH

    Simplify completely: -3(4-9)+6-2(-8+5)

    asked by kara
  118. Math

    What is the coefficient of the fifth term in the expansion of (x + 1)^8?

    asked by Raven
  119. alg.2

    square root of X + 3 =12

    asked by need help
  120. medical

    The original medical record is the property of the

    asked by nicole
  121. psychology

    How do I go about counterbalancing 4 variables??

    asked by Linda
  122. history

    Write a newspaper account of the Spanish Armada. Thanks! x

    asked by Renee <3
  123. Computer science

    If the last value of Period is less than the number of periods specified in the Parameters worksheet, increment the Period value by 1, otherwise blank the cell(i.e. ""). What does this mean in spreadsheer syntax for excel using the IF function

    asked by tomi
  124. math

    In the problem 2,763.4 what is the value of the 6?. I always get confused when there is a decimal involved.

    asked by 4th grade math
  125. Math

    How many prime numbers are between 0-50? Prime Number= Only has factors of 1 and it's self. For example. 3, it has 3 and one for the factors.

    asked by Liley
  126. 4th grade

    i need help with a sentence in future tense (it clins to branches and twigs)

    asked by francisco
  127. alg 2+urgent please.

    2/the 6th root of 81 the answer gave an answer of "2 3rd root of 3/3" sorry i didn't type the root signs, i dunno how. can you show me how to work this?

    asked by Chopsticks
  128. philosophy

    discuss platonism as an ethical theory.

    asked by clarence
  129. algebra 1

    sqr 49 over sqr 4 simplify the expression

    asked by mike
  130. 7th grade

    what are objects that are streamlined and what are the advantages?

    asked by sarah
  131. social studies

    what was the reason for l.p. ray building the dust pan?

    asked by yamilex
  132. 5th grade

    Mike and Shannon harvested 110,793 pounds of winter wheat off of the Stone Ranch. There are sixty pounds in a bushel. They planted 23.3 acres of winter wheat. How many bushels per acre did the crop yield?

    asked by Briana
  133. Math

    What are the square numbers between 0-50?

    asked by Liley
  134. Peer Review Article

    I'm looking for 2 articles in Biology and I can't determine if they're peer review or not. Can anyone help with what I'm supposed to look for?

    asked by Sam
  135. writing

    where is the setting of charollet web

    asked by ruth
  136. (Composition)

    What is a Competencies Contract? where can I find an template?

    asked by Bryan
  137. Precalc

    if you have how do u do 2^2x - 2^x - 6 =0 (calc)how do u do it? using logs??

    asked by Spencer
  138. algebra 1

    sqr 9 over sqr 49 simplify the expression

    asked by mike