# Algebra, help + check please

106,914 results, page 49

1. ### Science--HELP!!

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 ...
2. ### 9th grade algebra

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 ...
3. ### Algebra pls. help

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 ...
4. ### chemistry - density and error (check)

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
5. ### Chemistry

Please check. HCl: dipole-dipole interaction HF: hydrogen bonding TiCl4: ionic bonding? CsCl:ionic bonding
6. ### English

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 ...
7. ### algebra

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 ...
9. ### Help me please

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 ...
10. ### math

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
11. ### Physics=Please check

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
12. ### Math estimate with benchmark

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...
13. ### Anatomy and Physiology

Hello! Thanks for checking my question out! ____ 9. What type of bone is a skull bone? (1 point) a) long bone b) short bone c) flat bone d) irregular bone My Answer: C Could someone please check my answer? Thanks! - Da Fash
14. ### calculus

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...
15. ### Math

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...
16. ### statistics/please check calculations

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...
17. ### mAth EQUATION/FRACTIONS

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...
18. ### Science 6TH Grade

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...

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
20. ### Language Art (Please Check)

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
21. ### Algebra

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.
22. ### Math

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 ...
23. ### Health of young children

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 ...
24. ### grammar check PLZ HELP ;-;

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. ...
25. ### algebra

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?
26. ### algebra 2

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?
27. ### Algebra 2 check

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
28. ### Foreign languages

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 ...
29. ### Math(Please check)

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?
30. ### Algebra

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 ...
31. ### algebra... help soon please

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 ...
32. ### math plz help!!!!!!

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)
33. ### math

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)...
34. ### Physics -- check answers please

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)
35. ### Math

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 ...
36. ### Please check my answer(Social Studies)

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
37. ### Introduction to the Criminal Justice System

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 ...
38. ### Science 8th grade

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 ...
39. ### U.S.History

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 ...
40. ### Grammar and Composition

please check my answers: write the plurals of the following singlular words. 1. guess : guesses 2. tongue : tongues 3. attorney-at-law : attorneys-at-law 4. theory : theories 5. leaf : leaves 6. tomato : tomatoes 7. mouse : mice 8. beach : beaches 9. piano : pianos 10. monkey...
41. ### English

Can you please help me check these school rules in case of an evacuation? 1) During an evacuation you have to (must?) 2) stay calm 3) queue with the respective openline and closeline 4) go calmly to the nearest emergency door 5)if you need, go down the stairs, always quietly 6...
42. ### cultural diversity

1. Young children's functional use of language within a work context is often observed in: A. Mainstream industrialized societies. B. Triadic interactions in Mexican-American groups. C. Rural Appalachian Black communities. D. Native American cultures............ I choose D...
43. ### English

Which of these words has the same denotative meaning a, but a different connotative meaning than, the word COPIOUS. A. meager B. abundant C. lavish ******* D. sparse An award is given every year to the student ______ has the highest grade-point average. Which of these ...
44. ### Social Studies Check Answers Please

What was a common thread in the fall of communist regimes throughout Eastern Europe? A) a decline in education and health care B) poor economies and demands for more rights C) a lack of strong leaders in communist governments D) support for military alliance with the United ...
45. ### Chemistry (Check)

Determine the type of chemical reaction, find the limiting reagent, determine the amount of product in grams, and the amount in grams of excess reagent. Calcium nitrate is decomposed with heat to give calcium nitrite and oxygen gas. Start with 15.99g of calcium nitrate. Ca(NO3...
46. ### algebra

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 ...
47. ### Calculus

Would you please check my answer to make sure I did it right? Bus travel, a bus company finds that monthly costs for one particular year were given by C(t) = 100 + t^2 dollars after t months. After t months the company had P(t) =1000 +t^2 passengers per month. How fast is its ...

49. ### Enlglish

please check my answer thanks :) Which sentence is the hypen used correctly? 1. Molly- my beagle- loves to fun in the field. 2. She wore her hair in a closely-cropped style. 3. Jan's house was painted light-blue 4. We stayed at a first- class hotel. I picked light-blue
50. ### history

please check this President Wilson convinced the Allies to a. divide the spoils of war among the victors b. accept his plan for the League of Nations c. make Germany pay heavy war reparations d. allow Germany to keep its overseas colonies i'm stuck between b and C but i think ...
51. ### Algeblease check my answer

Posted by Annie on Monday, October 18, 2010 at 7:20pm. Choose the equivalent expression(3h^-2j^3k)^2(hj^-5k^3)^-2 The signs that look like minuses are negative signs Answers: 3h^-6j^16K^-4 9h^-2j^5j^16k^-4 9h^-6j^-4k^-4 9h^-6j^-4k^-4 Please help I'm so lost right now-Ireally ...
52. ### chem/plz/check work studying for a final

23. A 32.3 L sample of a gas at 305oC and 1.20 atm is to be cooled at constant pressure until its volume becomes 28.4L. What will be the new gas temperature? Tf = Vf*Ti/Vi Tf =28.4L x (305+273)K / 32.3L = (28.4)(578)K / 32.3 = 16415.2/32.3 Tf = 508K I got this one wrong on a ...
53. ### science review

since tomorrow is my test. Please check: seed coat- skin covering the seed to protect the inner parts Hilum- ? cotyledon- where nutritient is stored inside the seed embryo- part of a seed that grows into a plant. it include roots, leaves, and stem?
54. ### geography

Will you please check my answers? 1. What is the capital of South Carolina, the first state to withdraw from the Union before the Civil War? Columbia, South Carolina 2. Which Scandinavian country has the highest overall elevation? Norway 3. What color is used to show bodies of...
55. ### English

Can someone please help me check the grammar in the following sentences? 1) I would like to inform people about the danger (after effects?) of having a nuclear power station near our town 2) I hope you will listen to our advice. 3) Animal and plant species will be in danger.
56. ### check my science hw please.

31. Which of the following is an example of a global environmental choice? A. a student deciding to ride a bicycle to school B. a family deciding to recycle their newspapers C. a town meeting about a new nature refuge. D. nations meeting to discuss the ozone layer. I got C as ...
57. ### History

Please check! 1. What was the effect of the rise of unions in the late 1800s? a. The population in cities quickly grew.*** b. South Carolina developed many unions prior to World War I. c. Workers had more bargaining power with management. d. Living conditions in cities ...
58. ### Social Studies

What were the effects of the interstate highway system? 1.it caused decline in air 2.it connected surban areas to metropolitan areas 3.highway constructions projects created jobs 4.it enabled people to drive longer distances at faster speeds my best answer is 1 and 3 can u ...
59. ### Math

^=exponents /= divide So I am not sure how to do this. It is an example in my book but I still don't get it. Can you work through ti so I can do my real work. (-1^2+-1^-2)^-1 (-1^2+-1^-2)^-1 = First, do work within the parentheses. -1*-1 = 1 and -1-2 = 1/(-12) = [1+(1/(-12...
60. ### Someone Please Check My Answers?!?!?

18. Which action during westward expansion had the most negative impact on the lives of slaves? A.) The Fugitive Slave Act**** B.) The Mexican-American War C.) The Treaty of Washinton D.) The Missouri Compromise 19. Which answer best describes why towns and cities were built ...
61. ### algebra find outlier describe affect

just want to double check on 2 problems that we did -15 -12 -19 0 -20 -14 the outlier is 0 the mean with the outlier 0 is: -13.33 the mean without the outlier 0 is: -16 is this correct? next one: 4 -1 -16 2 0 -3 6 -2 for this i added positive got: 12 i added negative and got...
62. ### Math (quick check plz)

hi i rearranged these terms into y=mx+b can you plz check and see if they're right? 1. 2x+5y-16=0 2. 4x-3y-6=0 3. 3x+y+2=0 1. 5y=-2x+16 2.3y=-4x+6 3. y= -3x-2 tnx ^^ On the first two, you need to divide each side by the coefficent of y. On two, what happened to the negative ...
63. ### English

Identify the sentence that is correctly punctuated. A. It is not always necessary; however, to check the entire set of books. B. It is not always necessary, however; to check the entire set of books. C. It is not always necessary, however, to check the entire set of books. D. ...
64. ### English

Identify the sentence that is correctly punctuated. A. It is not always necessary; however, to check the entire set of books. B. It is not always necessary, however; to check the entire set of books. C. It is not always necessary, however, to check the entire set of books. D. ...
65. ### English

Identify the sentence that is correctly punctuated. A. It is not always necessary; however, to check the entire set of books. B. It is not always necessary, however; to check the entire set of books. C. It is not always necessary, however, to check the entire set of books. D. ...
66. ### algebra

One more triangle question,please. In this triangle,the short leg is x and the longer leg is 1/2x + 11. If the hypotenuse is 2x + 1, what are the lengths of each side of this right triangle? Please show all calculations. Short leg = ______ Long leg = ___________ Hypotenuse = ...
67. ### Health Law

please check my answer thanks :) Peter Jones sues Dr Bob for malpractice. The jury believes Dr Jones was guilty of malpractice but doesn't believe Peter was affected Peter is entiled to what type of damamges ? I think punitive damages
68. ### history- civil war

What did Abraham Lincoln mean by saying slaves represented money? He meant that without the slaves the South would have no income. The more slaves they had, the more income. Please check if this is correct. Thanks.
69. ### precalculus

will someone please check my work? find two sets of parametric equations for the given rectangular equation x+y^2=4 x=-y^2+4 y=-t^2 x=-t^2+4 x=-t^3 y=-t^3+4 Find a polar equation of an ellipse with its focus at the pole an eccentricity of e=1/4 and directrix at y=4. answer...
70. ### English

Can you please check the following sentences? I had left them out. Thank you. 1) They fell out over something really stupid but made up a week later. (or made it up?). Her friends will never let her live it down. 2) They have been going out with each other for two months.
71. ### Organic chemisty(Please check)

When drawing a kekule structure for CH3CH2OH(alcohol) do I leave the OH at the end just like it is (OH) or would it be shown as O-H? I know that to start of it would be -C- with an H on the top and the bottom as well as the left side and then connected to the C would be ...
72. ### 8th Grade Math

The temperature in Toronto at noon during a winter day measured 4°C. The temperature started dropping 2° every hour. Which inequality can be used to find the number of hours, x, after which the temperature will measure below -3°C? Can you please check my answer? 4−2x&...

What is the value of x in the regular polygon below? hexagon with an interior angle value of 3x please please help and thanks in advance. :)
74. ### 9th grade Math

(7n-1)/(8)=6 Okay, I think I add 1 to both sides, so now I have.. (7n)/(8)=7 And then, to get n by itself I divide 7 into both sides, so now I have.. n/8=1 n=1 is what I get, but I'm not sure, could someone please check this for me?
75. ### English

1. What Don saw was a laptop. 2. I don't believe what Don said yesterday. 3. This is what Don wanted to have. 4. What Bill said was not true. 5. I don't have what he asked for. 6. That is not what Bill wanted. (Are they all grammatical? Check the sentences, please.)
76. ### check my science hw please.

26. In the last few centuries, the number of species becoming extinct on Earth has A.decreased dramatically B. decreased slightly. C. increased slightly. D.increased dramatically I think it should be C.
77. ### Math

What do you do to check whether a number is rational or irrational? How does finding the square root of a number compare to finding the cube root of a number? Use the number 64 in your explanation. Can someone please help me with these questions?!
78. ### please check--intro to finance

______ is the price a firm paid to acquire an asset. a) book value b) market value c) markup price d) fair value --------- My answer is B. market value
79. ### math

what is 100.00 +1.002.00 Please check your problem. 1.002.00 is not a standard way of writing a number. We don't use two periods in a number. 1002.00 1002.00 + 100.00 = 1102.00
80. ### Math please check

Identify the amount in the following application In a shipment if 1200 parts, 60 were found to be detective. What percent of the parts were faulty? a. 60 b. 1200 c. what percent d. shipment answer: c
81. ### math 115

could someone check my work please? 1.List the factors of each of the following numbers.66 1,11,6 2.Use the following list of numbers for exercises 13 and 14. 0, 1, 15, 19, 23, 31, 49, 55, 59, 87, 91, 97, 103, 105 15,55,105 answer 3.1,55, 1,57, 1,58,1,59,1,61,
82. ### MATHS

Could you please check my answer? If the accident happened on the 8th of November and then Trent spent 3 weeks and 1 day in hospital, on what day did he get out of hospital? ANSWER: 30th of November
83. ### math

The nurseryman brought six different varieties of trees to plant in six locations in the park. In how many different ways can he plant the trees Please check my answer = 720
84. ### Spanish 1-Please check my answer

Eres mayor o menor que tu hermano? Would I say Soy mayor que tu hermano. if I was older than him? or should I say something else? Thank you
85. ### English

Rewrite the following sentence to make it more concise: The referendum was held by the government in the month of August. The Government held a referendum in the August. Please check my work.
86. ### Algebra I

What is 194 times 10 to the third power written in scientific notation??? Please I am in tears trying to figure this out
87. ### algebra 1

-4/3x-3 what is the answer to this problem write the fraction for it please Are you sure you typed it right? Is it negative 4 divided by 3 times x minus 3?
88. ### ALgebra 2

Okay Im super confused about how to do this Give three points that lie on the line 3x + 2y = 6 can some one please explain it to me? thank you
89. ### pre-algebra

ok Relation between two quantities expressed as the quotient of one divided by the other? please help this is puzzling
90. ### math-algebra

sqrt27xy^3/sqrt9x I'm getting 3 answers to this. yxsqrt3y/x, ysqrt3xy/3x, and 3sqrt3y Can anyone please tell me which one is correct?
91. ### Algebra

I also needed help with this problem to: 8 divided by 4 times 2 - 7 + 3 Again could you please show me the work involved in getting the answer. Thank you.
92. ### 8th Grade Algebra

Rewrite each polynomial as the product of two binomials. 1. y^2 + 6y + 9 2. 25x^2 - 10x + 1 3. 36 - y^2 Can someone please help me do these correctly?
93. ### Math - Pre Algebra

\$1280 at 13% compound annually for 3 years Use the formula: B= p(1+r)n Please help me I need the answer for tommorow
94. ### algebra

I need help, i have to solve the linear solution using substitution, the equations are 4x+3=y and x=y-2 Also, please show me how you did it if possible. Thanks!
95. ### algebra

please help! can someone show me the steps in solving this? find all numbers for which the rational expression is undefined -16/19x
96. ### Algebra

Please guide in solving the following. I need the steps to take...in order to solve other similar equations. 28-4y=0
97. ### algebra

I am trying to solve 5x+y=30 - this is what I have completed so far. 5x+y=30 -5x =30-5x y= 25x so the points to plot would be -5,25 ? I do not think is correct - please help
98. ### ALGEBRA

Without graphing, identify the slope and the y intercept for the line assoiciated with each equation or table of values: 5x + 20y = 60 x y1 0 6 1 10 2 14 3 18 4 22 5 26 6 30 X=0 PLEASE HELP ME!!!
99. ### algebra 1

please explain to me how I work out problems such as "-2-3" to get the correct answer and show the same on a number line
100. ### Algebra

I need help with math 116 week8 quiz I have tried everything please help me I am failing this class thank you in advance