Algebra, help + check please
103,406 results, page 47
Transform the following equations into standard form 1. x^2 + 2x = -1 2. 4 + x^2 = 7x 3. x^2 - x = 1 4. x^2 + 9x = 10 5.4x + 3 = x^2 6. x^2 + 5x +5 7. 2x^5 + 7x = 3x 8. x^2 = 3x + 8 9. x(x + 3) = 1 10. x^2 - 3x = -2 11. y^2 - 7y = -6 12.z^2 - 5z = -4 Some one please help I don...
Write each of the following expressions without using absolute value. |x−y|, if x<y I reall don't get this please help
Please , I don´t know how to do this demonstration: If A and B are mutually perpendicular vectors( different to zero vector) and "c" is any number show that : || A +cB ||>= ||A||
Identify the initial amount a and the growth factor b in the exponential function. f(t)=1.4^t A)a = 1, b = 0.4 B)a = 1.4, b = 0 C)a = 1.4, b = t D)a = 1, b = 1.4*** Is this correct? If I'm wrong can you please explain why, thanks! (=
2. Which equation represents the pattern in the table below? Sals and carries ages Sal- 3, 5, 8, 13, 15 Carrie- 7, 9, 12, 17, 19 A. S=c+4 B. S=4c ^?^ C. C=s+4 D. C=4s
I still need help! Please show a complete evaluation with the answer in scientific notation. 9.6*10^2/3.2*10^5 Thanks very much.
Using factoring and zero-product property,please solve the following: 9r^2 -30r +21=-4 Thanks very much.
Which is the correct simplification of 2.2*10^4/8.8*10^9 written in scientific notation ? a) 0.25*10^5 b) 2.5*10^6 c) 0.25*10^-5 d) 2.5*10^-6 I think it is either a or c, but please help. * means multiplication sign Thank You !
Write 6.92 x 10 -8 in standard notation. A. 0.000000692 B. 0.0000000692 C. 0.0000000069 D. 0.00000692 Please help, i have no clue!!!
4x^2 - 13x + 3 How do you break this into groups? So far I'm having trouble with this type of concept. Please explain it, thanks!
please check these answers please 1. Which region of Mexico are sinkhole most likely to be found? A. Mexico plateau B.Baja California C.sonoran desert D.Yucatan peninsula(I PICK THIS) 2.what effect does altitude have on Mexico's climate? A. as altitude decreases, the ...
It certainly pays to check your work! I just took a huge science test. I checked it over twice before I turned it in, and I got an A! My score was 94 out of 100! I figure that each time I checked it, I found half of the mistakes that were there at a time. What would have been ...
The monthly rents for the apartments in a Business building are listed below. $425, $550, $550, $550, $650, $650, $650, $650, $800, $900 Part A: Find the mean$637.50 median=$650 mode=$650 range=$475 and standard deviation of the rents???
i have trouble with my subtractioin i also have problems with my spellings please help Please check these sites for games to help you improve your spelling. http://www.funbrain.com/spell/index.html http://www.eduplace.com/kids/hmsv/smg/ Please post a subtraction problem that ...
Can someone check my answers. Write the following equations in standard form. 1) x^2 - 2x + y^2 + 4y = 11 answer: (x-1)^2 + (y+2)^2 = 16 2) 4x^2 + 24x - y + 34 = 0 answer: y = 4(x-3)^2 + 2 3) The graph of which equation is a circle? A. 5x^2 + 10x = 9 + 5y^2 B. 5x^2 - 10x = 0...
Tell whether the possibilities should be counted using a permutation or combination. Then find the number of possibilities. You have a carrying case that holds four CDs. You want to know in how many ways you can place four of the ten CDs you own into the case. Answer: 10*9*8*7...
Can someone check work? Write three sentences about your weekend. Use the verbs poder, dormir and almorzar. Durante el fin de semana, yo duermo mucho. También comer almuerzo a las doce. Después, puedo ir de compras. Is it correct? If not, please correct. Gracias.
If a child say "i be sick yestiddy wif a cole" a qualified teacher wil conclude that the boy a is using black english dialect b. comes from a poverty levelhome environment c. requires special education assistance d. cannot speak standard american dialect i chose "d" please check
Could you please check these two sentence? Thank you. The deposit I paid for the hotel room will be retained (??) by the hotel if I cancel my booking a week before due/arrival. 2) In Coleridge's The Rime of the Ancient Mariner (in italics) the storm, for example, is ...
Could you please check these sentences, too? Thank you. 1) There was a shifting of the population from South to North. 2) You reported my notes without changing a single word. A paragraph mustn't be the exact repetition of my summaries. 3) Furthermore, some sentences are ...
Can someone please check if my answers are correct? combina las palabras lógicamente. 1. la langosta 2. la salchicha 3. el ají 4. el caldo 5. el sacacorchos 6. hornear 7. los ingredientes 8. la sal 9. el durazno 10. el aderezo a. el vino b. la toronja c. la sopa d. la receta...
4. In both the Gettysburg Address and “Letter from Birmingham Jail,” the writers (1 point) comment on the tribulations faced by a nation at war. honor those who have fought for freedom. demand the revision of the nation’s unjust laws. expound on the notion of tolerance ...
I have 3 questions with my answers and would like you to check them. If they're wrong, then please provide and explanation to how to do them. Thank you tutors. Write each sentence as an equation. 1. Eight less than 1/3 a number n is -13. My answer: 1/3-8n = -13 2. A number f ...
I am stuck on this problem that I have tried to solve so many times! The question is:The length of a rectangle is four more than twice the width. If the perimeter of the rectangle is 32 cm, what are the length and width of the rectangle? Here is my work: 32=2(2x+4)+2(2w) 32=(...
(I answered a couple of them but am not confident on my answers, so can you please tell me if my answers are not correct to the ones I answered and for the ones I haven not answered that is because I do not know how to do them. PLEASE HELP!!! This assignment is already late). ...
Youtube - The Maccabeats - Candlelight - Hanukkah Please watch the video above and tell me a piece of Catholic wisdom about a feast day or holiday in the Catholic church. Please please please please
please check my answer thanks :) Dr. Jones made an mistake is on of the medical records Three years later Nurse Bonnie noticed the mistake and corrected it This was an improper action because A. Too much time passed B The doctor did not make the correction C. The correction ...
Imagine that you spent a day in the country taking pictures of animals. Make a list of 8 different animals that you saw. J'ai pris des photos de (d'): 1. un ecureuil 2. un oiseau 3. une poule 4. un lapin 5. une vache 6. un cochon 7. un canard 8. un cheval
please check my answer thanks :) True or Flase You are allowed give access to someone if they need a patients records for a research project. I said True I have seen in my local hospital nursing students taking a look at a pt chart for research
please check this how did the Nationalists regard Shay's Rebellion? a. as proof that the states had too little power b. as an example of how governments abuse their power c. as proof that only a strong national government could prevent social disorder d. as a demonstration of ...
Do charged particles always experience equal but opposite electrical forces? My answer is The electric forces are directly porportional to the quantity of the charge on the objects. Is that correct-we just started learning this and I'm trying to answer this question and sound ...
Can you check these last two sentences, please? 1)The old man’s eye was open, which made the narrator angry. However, he kept still and said nothing. 2) When he wakes up he can see the size of his prison and realizes that the pit is about half the size he had calculated (OR ...
I need help on this problem: Cash crops raised on Southern plantations included _____________, rice and indigo. Please check: Eliza Pinckey is known for developing a type of [indigo] for dyeing cloth. The [Southern] English Colonies were located along the [East] Coast.
3. The CIA participated in the Cold War by helping design efficient weapons systems. carrying out secret operations in other countries. spying on the Soviet Union. helping the president determine foreign policy. I think the answer is B. Thank You
can anyone explain the advantages and disadvantages for interdependence ANSWER:It is your ideology which makes things good or bad?Good and bad will go along each other and can not be separated because nothing is absolute in this world.Unless you realize your self every body ...
Hello. I will be very grateful for your help. Please check the sentences: 1) "He was a great man whom I cannot remember without grief nor write about without tears." 2) "Even the animal world demonstrates more understanding than does human society." Thank you very much for ...
Identify a false statement about how to protect iron from corrosion. A. Coat the surface with oil, paint, or plastic. B. Attach a metal that is more easily reduced. ******* C. Exclude air and water. D. Attach a metal that is a better reducing agent.
please check my answer: why did african americans go from the rural south to northern cities starting in the late 1800s? - so they could be around other races and cultures - to change identities - to escape the discrimination and to find better jobs ** - religious persecution ...
1. Which of the following was not part of Britain's new imperial system after 1763? The Sugar Act The Molasses Act The Stamp Act The Currency Act The Quartering Act Please check the date for the Molasses Act.
Please check my answer thanks :) True or False The Rhodesian Ridgeback in not considered a versatile hunting breed ( however Pointer Weimaraner and Bruttany are versatile hunting breeds) I said that is True
1) Where in the phase diagram of a compound do all phases exist together? a) at the sublimation point b) at the boiling point c) at the melting point d) at the critical point e) at the triple point I chose answer E, the triple point. Is this correct?
10. You have six $1 bills, eight $5 bills, two $10 bills , and four $20 bills in your wallet. You select a bill at random. Without replacing the bill, you choose a second bill. What is P($1, then $10)? A. 77/190 B. 3/100 C. 3/95*****? D. 2/5
Yvette earned $66.00 for 8 hours of work. Lizbeth earned $68.80 working the same amount of time. How much more per hour did Lizbeth earn than Yvette earned? a. $0.35 b. $0.45 c. $2.80 d. $8.25 Answer-c Please check the above.
Can you double check my answer The lengths of the sides of a rectangular window have the ratio 1.6 to 1. The area of the window is 2,560 square inches. What are the dimensions of the window? (1 point) 50.6 inches by 50.6 inches 40 inches by 64 inches 40 inches by 80 inches <...
Can you please check this short letter of enquiry, please? 1) My husband and I are looking for a double room plus an extra bed for my six-year-old child for 14 nights from 4 July to 18 July. 2) In particular, we would like to know your rates in half board (breakfast/dinner) ...
Please check my answer thanks:) You've been assigned to invite a group of mechanical engineering professor to tour your factory. What type of language should you use in the invitation? Formal language or Direct simple languge I picked direct and simple
Ms.Sue,I need your help! If you don't mind,Would you please go to page 5 and look under Early Child Ed. and check my questions and my answers? I didnot know you have were gone for the holidays. Others have checked it,but I want to be sure you agree with my answers. Thank you ...
I need you to check one question thanks. It's for the poem "The Rainy Day," by Henry Longfellow. 1. What inital sound is repeated more than another in "The rainy day?" What is it's effect? Answre: The days are dark and dreary and it's affect is it's repeating "d."
This is the question: The straight line y=2p+1 intersects the curve y= x+ (p^2/x) at two distinct points. Find the range of values of p. this is what i did: 2p +1 = x + p^2/x simplify.... x^2 + (2p+1)x + p^2 = 0 b^2-4ac > 0 (-2p-1)^2 - 4(p^2) > 0 simplify.... 4p + 1 >...
Gertie can feel roaches running over her feet even though they are not there. What is this called? a fixation a hallucination an illusion an eidetic image a phobia I would think that Gertie would be having some sort of a hallucination..
Is leisure time considered an inferior good when the substitution effect dominates? I think that the answer is yes because if you are willing to work more hours in order to make more money than you do not value leisure time that much. Is this correct? Thank you!
I have more but i decided just to post this 1. I think its Them. Which word in the sentence is the indirect object? After a short time, he had given them enough wooden animals for three toy zoos. A. animals B. zoos C. them D. time
Which choice best describes the underlined words in this sentence? On the next cloudless night, go outdoors and look at the sky. Underlined is: go ______ look A- simple predicate B- complete predicate C- compound verb D- none of the above I think it is C.
Please check my answers. Solve the following equations and/or system of equations for the unknown variables. 1. x^2-3x-12=0 x= 3 + sqrt(57) / 2, x= 3 - sqrt(57) / 2 2. x+y=8 , 3x+2y=2 x=-14, y=22 3. 3x + 2y =10 , x+y=5 , y+z =9 x=0,y=5, z=4 4. 1/x-p1z=0, 1-p2z=0, I-p1x-p2y=0 ...
Kayla claims that she can find an approximate value for sin 1o without using a machine to do any computations. Explain or show how she can do this (Hint: if you choose to explain the process, please be very specific. If you choose to show how it is done, you can use your ...
1) What conclusion can you draw about the comparative advantages other countries have in farming over Japan and the Koreas? 2) What conclusion can you draw about the government's influence on daily life in North Korea? Explain your reasoning. My answer: North Korea has an ...
I don't if I'm right for these two questions i just need a check if I'm right,if I'm wrong please show me how to get that answer. Rewrite the following exponential functions as logarithmic functions a)f(x)=9^x ans:f(x) Log^-1(xlog(9)) b)f(x)=(7/8)^x ans:log^-1(x(log 7 - log 8...
so i've already answered one of the questions i asked yesterday. thanks for the username damon. yeah it was a typo. I'm gonna repost a question. Please please... someone help me. *The first and the second term of a progression are "a" and "b" respectively. what is the third ...
A proposed mechanism for a reaction is: (i) A + B2 = AB2 Ea1 = 12 kJ/mol ƒ´H1 = 3 kJ/mol (ii) AB2 + C2 = ABC + BC Ea2 = 30 kJ/mol ƒ´H2 = 5.2 kJ/mol (iii) ABC + B2 = AB2 + BC Ea3 = 10 kJ/mol ƒ´H3 = -7.8 kJ/mol a) Which is the rate determining step? Explain why. (ii) It ...
Seawater of average salinity freezes at about: a. 32 degrees F b. 0 degrees C c. -2 degrees C d. -10 degrees F I think it's -2 degrees C but want to be sure. Please check for me. Thanks That's right. The freezing temp of sea water is given in that last wikipedia reference I ...
An ice cream shop offers the toppings shown below. How many 4-topping ice cream sundaes can you make? chocolate chips walnuts strawberry sprinkles caramel hot fudge whipped cream gummy bears 11 28 ** 30 35
Could you check my answer please..thank you Which of the following sentences contains a linking verb? A. Yesterday, Sarah experienced rock climbing for the first time.xxx B. Sarah seemed nervous at first. C. She climbed very well for a beginner. D. I think Sarah wants to go ...
Can you please check my answers: 1. Dalton's idea that atoms cannot be divided into smaller parts was disproved by the discovery of _________ (electrons?) 2. The description of the structure of the atom is called ______ (atomic model?) 3. In a water molecule, two atoms of ...
Can you explain how to find the solutions to the following system of equation problems? Graph f(x) and g(x) to find the solution to the equation f(x) = g(x). Approximate the answer when necessary. 1. f(x) = -2/3x +4 and g(x)= x - 6 Ans: Step1 graph lines. f(x) has y-int of 4 ...
logarithms Solve the following equations 3^x-2=6 Add 2 to both sides of the equation to start. Whatever operation you do to one side of an equation you must do to the other side as well. 3^x - 2 + 2 = 6 + 2 3^x = 8 Changing to logs: log 3^x = log 8 x log 3 = log 8 x = log 8 / ...
Am not understanding this. Could someone please explain to me. If x^2+bx+c is factorable and c is negative, then the signs of the last term factors of the binomials are opposite, why? If x^2+bc+c is factorable and c is positive, then the signs of the last term factors of the ...
Calculate the density of earth and the density error. i got the answer 5.57*10^3k +/- 9.60 *10^7kg/m is that the correct answer? please help
Please check. HCl: dipole-dipole interaction HF: hydrogen bonding TiCl4: ionic bonding? CsCl:ionic bonding
Can you check these statements I'm not sure of, please? Thank you. 1) Is there a difference between a soup plate and a soup bowl? 2)I dress my salad with oil, vinegar and salt. I season my steak with pepper and oregano. 3)Before serving coffee, I lay the cups, the saucers and ...
Find a number that is decreased by 12 when you form half of the number, explain how you got your answer. It reads to me that n/2 + 12 = n multiply each side by two... n+24=2n subtract n from both sides n-n+24 = 2n-n 24=n check it. Take one half of 24, or 12. Is that the same ...
please check my answer. each test is worth 100 points. the following test have been taken and earned 91, 90, 93. for a total of 360 points to earn an A, what grade should be made on the final test to earn an A
I have an electrical circuit which has 20V shown on left side I=0.8A on top I = 0.3A on bottom I have to find the resistance Would I add 0.8 + 0.3 and then use the formula V = IR so it would look like this: 20V = 1.1A x R 20V x 1.1A = R
Could you please check ifI have these right? i need to estimate using benchmarks (show work) 1/8 + 3/5 i got: 0 + 1/2 = 1/2 _________________ 4 3/4 - 1 2/3 i got: 4 +1 = 5 - 1 +1 = 2 so 5 - 2 = 3 _____________________ 43 7/8 divide 10 1/3 43 + 1 = 44 10 +0 = 10 so 44 divide by...
Ursula wrote the sum of 5.815 plus 6.021 as a sum of two mixed numbers? A. What sum did she write? B. Compare the sum of the mixed numbers to the sum of the decimals? Please help answer ASAP. Thanks
The circumference of a sphere was measured to be 76 cm with a possible error of 0.2cm. 1. Use differentials to estimate the maximum error in the calculated surface area. Please round the answer to the nearest tenth. 2. What is the relative error in the calculated surface area...
Can you please go step by step, Ill show what I did and you can correct me. The question is: a+a(x+1) My way: a+a(x+1) 2a(x+1) 2ax+2a Could someone please check over this and provide a correct answer and my error. Thanks in advance. a+a(x+1) does not equal 2a(x+1) If it was (a...
questions reads as follows: sat scores around the nation tends to have a mean score around 500, a standard deviation of 100 points and are approximately normal distribution. a person who scores 600 on the sat has approximately what percentile rank within the population? please...
Find the y-intercept and the x-intercept for the equation. -6x+y=22 What is the y-intercept. Type an ordered pair. y is (0,3) What is the x-intercept, Type an ordered pair. x is (0,0) Could check this problem to see if right.
What would the application be to my experiment which was "We dig through soil and check for inorganic and organic matter in the soil and look for natural things in the soil(ex; beans,feather,rocks,sticks,and grass)" Please help! ive been on this for 4 hours now and have had no...
Solving equations with fractions can you check these? 16) 51m = 3 i got: m =17 18) 5j = 50 i got : j = 10 20) 1/4c = 9 i got: c= 36 22) 11e = 15 i got: e = 1.363636363 24) 19 = 1/6q i got: q = 114 26) z/4 -2 = 10 i got: z = 48 28) 5/6n -2 = 8 i got : n = 12 30) j/7 - 10 = 32 i...
i think its C. when does juan catch the bus for school? Which of the following correctly names the subject and the verb of the sentence? A.juan;catch B.when;catch C.juan,does catch D.when;does catch
Cedric cashed a $125 check at the bank. The teller gave Cedric his money in $5 and $10 bills only. If the teller gave Cedric twice as many $10 bills as $5 bills, how many of each type did cedric receive?
My data has a median of 4, a mode of 3 and a mean of 3.56. Would this mean my data set was normally distributed? I think my data set is not normally distributed but can someone just check my work for me?
A sinusoidal function whose frequency is 3, maximum value is 12, minimum value is −6 , and y-intercept is (0, 3) . Which function could be the function described? f(x)=9sin(6πx)+3 f(x)=9sin(x3)−3 f(x)=9sin(3x)+3 f(x)=9sin(6πx)−6 <my answer
A ferris wheel has a diameter of 10 m and takes 24 sec to make one revolution. The lowest point on the wheel is 1 m above the ground. (4 marks) a. Sketch a graph to show how a rider's height above the ground varies with time as the ferris wheel makes a rotation. Assume the ...
i cannot figure any of this stuff out. please help. if you can there are 15 more of these... 1. Simplify 5 + (7-1)2/6 A11 B41/6 C51/6 D7 E17/6 F23 2. Simplify (26/2 + 33)/(23) A11/3 B5 C20/3 D8 E6 F131/8 3. Simplify [7+2(5 - 9)2]/[(4+1)2 - 3(22)] A-23/2 B18/7 C-13 D9/4 E8/41 ...
5.) A child in your program has just returned after having chickenpox. You notice that she still has a few dry scabs. What should you do? A. Send her home. She is still contagious. B. Welcome her back and let her know what there is to do today. C. Allow her to stay, but ...
Which sentence contains an error in the use of end marks or commas? A.Miss K.C. Fairchild will lead the band in a Sousa march. B. Mom, what does B.C. mean? C.Dr. and Mrs. Majeck will attend the party on March,12,2007. D. Address inquiries to Ella Adams, 315 Elm St., St. ...
Writeacher, thank you very much! Can you please check these sentences, too? 1) They left for the supermarket a few minutes ago.My child is with them. They need to buy food for lunch and won't be back until noon. We'll spend the afternoon at home because it's scorching hot ...
I posted this yesterday but no one told me if my answers were correct. Can someone please check my answers. 1. Solve. –7x + 1 + 8x = x + 1 A) Identity B) No solution C) 1 D) 0 My answer: A) Identity 2.The length of one of the equal legs of an isosceles triangle is 8 cm less ...
Use the fundamental identities to simplify the expression. tan^2 Q / sec^2 Q sin^2/cos^2 / 1/cos^2 = sin^2 / cos^2 times cos^2 / 1 = The cos^2 cancels out so sin^2 is left. Is this correct?
I need someone to check my work not sure if I'm doing this right. The design of a digital box camera maximizes the volume while keeping the sum of the dimensions at 6 inches. If the length must be 1.5 times the height, what should each dimension be? HINT: Let x represent one ...
What do angles, acute angles, and complementary angles have in common??? they are all angles duh! my teacher said that that's too obvious Please check your book for the similarities. This site also has several explanations about the similarities. (Broken Link Removed)
Wondering the answers to these: Find the value of each of the following. Leave your answers as fractions where appropriate. [I did these myself but need to answer-check] a) log[base4](1/8) b) 10^(-10log3) c) 2log[base3](9) d) log[base3](3)^(2x) ans: a) -3/2 b)(1/3)^10 c) 4 d)...
I am to fill in the blanks without a word bank, my answers are in brackets. 1. A ____ diffraction pattern is unique because it has a larger central maximum. (single slit) 2. the brightest, clearest diffraction pattern is created with a _____ (barrier)
integrate (x^2+8)/(x^2-5x+6) by partial fractions method. I first did long division, and came up with 1+((5x+2)/(x^2-5x+6)). Then I did partial fraction for (5x+2)/(x^2-5x+6) by going A/(x-3)+B/(x-2) and I got 17/(x-3)-12/(x-2) to take the integral of. But when I check online ...
In the Mayflower compact, why do the pilgrims "all due submission and obedience"? To show that they will remain sevants of God To show that they will follow the colony's rule•• To show that they will elect a colonial leader To show that they will follow the king of England
There is a large round up of gang members, this is a federal case but is being supported by about 50 local officers and state troopers. I need help please, coordinating he informaiton for briefing on the jprocess at the federal court building. the briefing is to detail what ...
Please check my answer thanks A woman who recently came home from a tropical vaction now has abdominal pain and diarrhea// Her blod test show an elevated eosinophil level. Which of the following organisms is most likely the cause of her illness? A Bacteria B Worm C Virus D ...
please check: One of the characteristics of postmodern fiction is the use of a. linear, chronological plots and standard methods of character development b. nontraditional forms that blur the boundaries between fiction and nonficitioin. c. themes advancing the idea that life ...