Algebra, help + check please

103,243 results, page 67

Algebra 1

Find the intercept and the x intercept for the equation 5x+6y =150. I just can't seem to figure this out. Please help me. I am totally grateful for all the help everyone of you have given me. Thank you, it is very much appreciated.

College Algebra

#3 Choose the end behavior of the graph of the polynomial function. f(x) -x(x-3)(5x+2), I think I have to foil to get -5x^3-2x^2+15x+6 So I think this one rises to the left and falls to the right. Please let me know if I did these correctly. Thanks

algebra

Please tell me IF there is a solution to this question (or is it misprinted). Can this be solved? Jenny has 11 coins in her pocket, all of which are either nickels or dimes. If the value of the coins is 754, how many of each type of coin does she have?

algebra

Please help me. Find the equation of the line satisfying the indicated properties. Express your answer in slope-intercept form. Passing through point (-2, 4) and perpendicular to the line containing points (3, -1) and (5, -1).

Algebra

How do you factor ax^2+bx+c? I'm so confused. I remember my teacher saying to use the discriminant b^2-4ac but when I do find the answer what do I next? Please help! For ex. Factor the trinomial if possible. If it cannot be factored, write not factorable. 4x^2+27x+35

Algebra

I do not the correct steps to solve for this problem. I know I have to first remove the negatives but from there I get confused. This is all the further I could get. Please help. The negative numbers are powers and the problem is a fraction. C-3D-2 C3D2 C-4D-5 C4D5

Algebra

Can anyone other than ms. Sue help me? -12x^8y^8 divided by 3x^4y^2 A. –4x2 y4 C. –4x4y6 B. 4x2y4 D. 4x4y6 I ended up with -4x^4y^2 but its not one of my answer choices.. I am not sure if many I missed a step or if I jist did it completely wrong. PLEASE HELP..

algebra

factor completely. -49x^2-35x-6 Please help with this, I know you multiply the two outer numbers which =-294, I am just having trouble finding a pair of factors of 294 that sum add up to 35. thanks

algebra

Suppose your parents deposited $1,500 in an account saying 3.5% interest compounded annually (once a year) when you were born. I have to find the account balance after 18 years , please help

Algebra 2

Find the values of the 30th and 90th percentiles of the data. Please show your work. 129, 113, 200, 100, 105, 132, 100, 176, 146, 152

Algebra

I need help please. 9.The owner of a computer store received a shipment of computers at cost of $319.85 each. If he sells the computes for $412.99 each, what is the percent of markup? Round to the nearest whole percent. 23% 29% 77% ****??? 79%

Algebra 1

Average attendance at a school's basketball games increased from 1000 to 1500 last year. One student said that represented a 150% increase. Explain the student's error. Please help!

algebra 1 please help

use the formula for the area of a trapezoid A=h(b1+b2) where A is area , b1 and b2 are (-----) 2 the lenght of the bases and h is the height, to answer the qustion. How many square feet of grass are there on a trapezoidal field with a heigth of 75 ft and base of 125ft and 81 ft??

Algebra 2

Solve the logarithmic equation. Round to the nearest ten-thousandth if necessary. log8x^3 = 4 Can somebody please give me a step-by-step for this? I'm usually good at this but I'm stuck for this one:( Thanks in adv.

Art

Could you please check these few sentences, Writeacher. Thank you. 1) I'm forwarding you the link to the European Etwinning certificate of quality. 2) Online projects carried out between two or more European schools can be eligible to receive both a national and a European ...

Math

Can someone please check my answers! 2. Find value of cos(255degrees)cos(105degrees) root3 - 2 / 4 3. cos(pi/12) - cos(5pi/12) Is it root3/4? 4. Use the appropriate sum-to-product formula to rewrite the expression sin6x - sin9x I don't really understand how to do these, but I ...

culturally diverse

An Asian parent may not emulate the early childhood teacher's practice of praising her son for his accomplishments because: A. Praising the child might bring him bad-luck B. The parent believes that absence of criticism is itself an appropriate form of praise C. The child does...

English - check my answer, please.

"Wondering what to do to avoid punishment and humiliation, now that she was fully alert; Judy took the eggs out of the carton, broke them into the skillet, stirred them with a fork, and cried." This construction: includes a comma splice. includes a lack of agreement between ...

Science check my answer please

In a famous letter to Robert Hooke, Isaac Newton wrote, "If I have seen further it is only by standing on the shoulders of giants." Which of the following does this quote best demonstrate? (Points : 1) the cumulative nature of modern knowledge of physics how physicists form ...

Chemistry

Can you please check if these are right? I'm not sure about IPFOA. Chemical formula: H2O Name: Dihydrogen oxide Bond Type (intermolecular FOA): London, dipole-dipole, hydrogen bonding VSEPR molecular shape: bent Central Atom Hybridization: sp3 Molecular Polarity: polar ...

Programming in c++

Draw a flow-chart and Write a program that asks the user to enter students grades. The program should stop reading when the use enters ‘*’. In addition, your program should print the number of students got each grade. The grades can be A, B, C, D, and F. You should check ...

Calculus-check my answers please

dy/dx= (y^2 -1)/x 1. Give the general equation of the curves that satisfy this equation. 2. Show that the straight lines y=1 and y=-1 are also solutions 3. Do any of the curves you found in 1) intersect y=1? My Ans: 1. The general solution i found out to be x^2 + C = (y-1)/(y+...

English

Could you please check these sentences I need to include in an email? Thank you. 1) I have just talked to two of the science teachers who would be involved in the project. 2) Before receiving your proposal by email, they would like to discuss it in further detail with you ...

Algebra

The average mark on a test in an algebra class is 80. If the two lowest scores of 34 and 48 are not counted, the remaining scores would average 83. How many students are in the algebra class?

Pre-Algebra

P.S - I really need help please help me with this, please i try and still i can not do this please!!!!!! :( :( :( :( :( The table below shows the percentage of households that own a microwave in different countries. Construct a stem-and-leaf plot of the data. Use the ‘|’ ...

English

Could you please check the following sentences, please? 1) Our teachers haven't helped us at all to establish the objectives or the possible results of our project. 2) That's why I believe we should consider the possibility of including Finland in our partnership. 3) If their ...

algebra

please help me put this in algebra equation? baseball regular season =162 games after playing 54 of them team a has 28 wins . A. how many wins will team have at end of season, 54/162 = 1/3 so I know answer is 28 x 3 = 84 wins B. what is % of games won by team so far this ...

computers please check my answer

please see if my answers are correct thanks :) Define the following terms Label = Anything that you define as text. Value = Anything that has numerical value and can be used in mathematical calculations. Thumbnail = Usually associated with a graphics image. It is a small ...

English

Can you please check these last questions, please? Thank you. 1) What major changes took place in England during the Industrial Revolution?/What changes did the industrial revolution bring to England? 2) What did the most important inventions concern? (They concerned machinery...

Algebra 2

Can't someone please help me with these equations. State whether the lines are parallel, perpendicular, or neither. 16. -14x = -632 - 26y y = (7/13)x - 316/13 18. x + 6y = 196 689 = (6201/230)y + (4823/460)x I would really apreciate your help.

algebra 2

Two cards are randomly drawn from a standard deck without replacing the card after the first draw. Find the probability of drawing a spade followed by a heart. Please type your answer as a fraction.

Math, Algebra

choose the correct solution and graph for the inequality (3y-6)/3 +4 <= -2 OR (4y-8)/2 -1 >= 5 Someone please help me and show me how to solve this. The numbers in parentheses are over a fraction, which is the number next to the slash. I can do the graphing myself, I ...

Math-algebra

Find k so that the line through ​(4, 1) and​ (k, 3) is a. parallel to 8x+9y=18 y= -8/9x + 8/9 ​ b. perpendicular to 3x+4y=8 y= -3/4x +2 I have solved both equation and found the slope, but I am not sure were to go from there. When I tried it the first time I got -17/2 ...

English

1. I like the characters on the ship. Their actions were great. Their roles were fantastic. 2. I like the animation used in the movie. With the help of the animation, the movie became great. 3. I like the iceberg which was being broken. It was wonderful. 4. I like some movie ...

Social Studies (Check, Please!)

1. What groups did Roosevelt's last New Deal programs try to help? A: Roosevelt's last New Deal programs tried to help the nation's poor and tenant farmers. 2. What was the legacy of Roosevelt's New Deal? A: The New Deal expanded the role of the federal government in society ...

Algebra

Given the equation of a line y = 2/5x - 2, the slope and y-intercept are respectively: a. 2, -2/5 b. -2, 2/5 c. 2/5, 2 d. 2/5 , -2 Given the equation of a line y = 2/5x - 2, the slope and y-intercept are respectively: In y=mx + b, b is the y intercept, and m is the slope. Here...

Chemistry(Please check)

A 0.0170 M solution of an acid has a pH of 2.5. What is the pKa? i did 10^-2.5=3.16e-3 Then 0.0170 - 3.16e-3=0.01384 ka= (3.16e-3)^2 / 0.01384 = 7.21e-4 pKa = -log(7.21e-4) = 3.14 The pKa is 3.14 Would you agree?

Spanish-Please check

¿Te gustaría quedarte en una pensión o en un hotel? ¿Porque? Me gustaría quedarme en una pensión porque una pensión es menos cara que un hotel.

algebra

Hi I need help with this question please. The base salary for a job is $3,000 per month. For each full year a person holds the job the salary increases by $300 per month. A) Write as a function where x is years worked and y is the total monthly salary. B)Solve the function if ...

algerbra

could you please double check my work question:find the roots of the equation 2x^2+8x=12 by completing the square. leave answer in simplest radical form. work and answer: c=(b/2)^2 c(4/2)^2=4 2x^2 +8x=12 divide everything by 2 x^2 + 4x=6 x^2+4x+4=10 (x+2)(x+2) square root of (...

Physics Help!!!! Please check

A 3.00 kHz tone is being produced by a speaker with a diameter of 0.150 m. The air temperature changes from 0 to 29°C. Assuming air to be an ideal gas, find the change in the diffraction angle . Please tell me where I am going wrong. first I converted the temp to kelvin 0 = ...

algebra

A continuously compounded account starts with $1500 in principal. The annual interest rate is 9.1%. What is the balance after 30 years? Help please. Thanks amount= 1500*e^.091*30= 1500 e^2.73 thanks

ALGEBRA

HAVING SOME PROBLEM WITH THIS . -2(X+7) IS THE ANSWER 14X? ALSO CAN YOU ADVISE ME THE RULES OF NEG AND POSITIVES ..IS 2 POSTIVES A NEG OR TO NEG A POS, I AM VERY CONFUSED ,,PLEASE HELP ME

Algebra

My second question is in section 5.4, problem 39. x+4/x-2 < or = 1; Since the inequality in not , should the answer to this problem in the back of the book be: {x|x< or = 2}, or in interval notation: (-infinity, 2)? Please explain this problem. Thanks.

pre algebra

A cylinder has a circumference of 16pi inches and its height is half the radius of the cylinder? What is the total surface area of the cylinder? Give answer in terms of pi. do not know how to do this....please help

algebra

simplify the following expression fully. I can't get some functions to work. Please read in the parenthesis. These are stacked. 1 + 1 (each 1 is underlined)) a b (a to b is underlined) a _ b (a and b is each underlined) b a (the minus sign is correct) Thanks

Chemistry

Can you please check my answer? Balance the following equation: Cl2 + KI --> I2 + KCl How many grams of Cl2 are used to form 6.8 g of KCl? So 6.8 grams of KCl divided by 74.55g Kcl x 1molCl2 divided by 2mol KCl multiplied by 70.91 g Cl2/mol.... 3.2 grams of Cl2

Algebra

Can you PLEASE help me with this Algebra problem: In a hotel conference room, the number of chairs is 47 more than the number of people currently in the room. The total number of legs currently in this room is 938. What is the sum of the digits in the number of people ...

psychology HW CHECK PLEASE

can you check this for me : For those who graduate from high school, get a full-time job, and marry before they have their first child, the probability that they will be poor is 2%. But, if those things are absent, 76% will be poor.” a) What is the causal relationship that ...

Math

A rectangular park has an area of 2_3 square mile. The length of the park is 22_3 the width of the park. What is the width of the park? this is the example of how they want them solving it The width of the room is 5/6 the length of the room. What are the dimensions of Kamal’...

Health

Writeacher, could you please check if everything is OK? Thank you very much. 1) My classmates always keep me from work (from the lesson??). I was on the phone with the bank when we were cut off. 2) I was so cross with my boss that I hung up on him.Peter had his house done up ...

History

What was the first nature reserve? In the US? http://en.wikipedia.org/wiki/Nature_reserve =) Please check the history section of the above web site for a nature preserve in the third century B.C.

english

How can a person distinquish between the prejudicial and non-predjudicial use of rhetorical devices? Please check these answers. http://www.jiskha.com/display.cgi?id=1159917320

Art

Could you please check these few examples? Thank you very much, Writeacher. 1) It is likely that he will pass his driving test. He is likely to pass his driving test. He should pass it. 2) I'm unsure that (if) I will pass it. I might pass it. It is possible that I will pass it...

chemistry

For the adiabetic expansion of an ideal gas a) does the gas do work? B) doesd the internal energy of the gas increase, decrease or remain constant? C) what happens to the temperature? Please check my answers A) yes the gas does work because it is expanding B) internal energy ...

Math

The Martin family's truck gets an average o 25 miles per gallon. Predict how many miles they can drive using 7 gallons of gas? Answer: 25 miles per gallon x 7 gallons used=175 miles driven 175/7=25 Can you please check the above answer? Thank you

Health /Law

please check my answer :) thanks Patty Smith is in labor, and her husband drives her to the ER of a hospital that parricipates in Medicare Patty has no insurnce The hospital should treat her until she is stable or transfer her to another hospital. I picked that the hospital ...

Math check, please

A cube has a side length of x feet. Which expression represents the surface area of the cube? 4x square units 24x square units x'2 square units 6x'2 square units *** Find the surface area of the cylinder that has a height of 15 cm and a diameter of 2 cm. Use 3.14 for pi. a. ...

Math

If 3/4 of the employees in a supermarket are not college graduates,what is the ratio of the number of college graduates to those who are not college graduates? I have solved ,please check it. Let x total employees (3/4)× not graduates So (1/4)x are graduates Ratio graduates ...

Physics(Please check)

A paperweight, when weighed in air, has a weight of W = 6.95 N. When completely immersed in water, however, it has a weight of Win water = 4.26 N. Find the volume of the paperweight. Would I multiply the two values of weight and then by the density of water? 4.26=weightinair-...

history

can some one check my work? i can where is it It's the one with the one that says order the sequence. Hi! brie. My work is on the 2nd page. Count the BLACK dots next to everybody's name until you find the 35th dot. Check that work. You'll see it next to my name: MACK! :') ...

Physics momentum: please check my answers..

I have a big online test and would really appreciate if you could please check my answers before I submit them (I only have 1 try) Two equivalent masses are attached by a rope that hangs over a pulley. Since the coefficient of friction is less than 1, they accelerate to the ...

Language Arts

Underline the correct pronoun in () to complete each sentence. 7. We went outside and played with (them, those) Underline the word them 8. The group decided (us,we) would play a game of kickball. Underline the word we. 9. The captain made (he,him) run for the ball Underline ...

dog behavior

please check my answers thanks so much What is the purpose of having an assistant hold a dog while you're teaching it the longline recall command? A. To prevent the dog from coming to you until it's very eager B. To make sure the dog remains in the sit position until you call ...

Geography

Can someone please check if my answers are correct? 21. How do people survive living in harsh enviroments such as the desert? a. by adapting and making changes to their enviroment b. by moving to more hospitable areas c. by not altering the natural landscape of their ...

Grammar and Composition

please check my answers: Match each of the words in the first column with a synonym in the second column. write the letters on the lines. 1. blemish _c_ 2. obstreperous _g_ 3. ponder _a_ 4. paramount _j_ 5. invincible _h_ 6. hoodwink _b_ 7. disentangle _d_ 8. cordially _i_ 9. ...

Early Child Ed.

Would someone also please check thse questions and my answers to make sure I have chosen the best possible answer? 1. A good example of people-first language is: A. "He has cerebral palsy." B. "She's a Down's baby." C. "This is a child with attention deficit disorder." D. "...

geography

1. Is it farther to go from Venezuela to Bolivia or Venezuela to Cuba? Venezuela to Bolivia 2. What is the name of the salt lake located on the border between Israel and Jordan? The Dead Sea 3. Katmandu is the capital of which Asian nation? Nepal 4. What is the name of a well ...

math inequalities please check

A landscape designer has to design a rectangular pad of concrete at the centre of a rock garden. The lenght must be less than or equal to twice the width; the perimeter must be less than or equal to 40 m; and the area must be greater than or equal to 60 m². 1.)Write as system...

Art

Could you please check the following corrections? Thank you, Writeacher 1) He offers her to let her remain in the country house. Correction: he offers to let her remain in the... 2) She invites her to remain... 3) He offers her to return to her parents. He offers to let her ...

Health Law

please check my answer thannks :) Dr Bob is on the staff at Patient hospital ,Inc he commits malpractice the plaintiff sues both the hospital and Dr Bob Assuming no fault on the part of the hospital which is the most complete and true.. 1. the hospital is liable 2. both Dr Bob...

Chemistry

I just need someone to check my answers please :) On the pH scale are the following items base, neutral, or acid? 1. Hand Soap 2. Blood 3. Milk 4. Coffee 5. Orange Juice 6. Soda Pop 7. Vomit 8. Battery Acid My answers: 1. Base 2. Neutral 3. Neutral 4. Neutral 5. Base 6. Acid 7...

college algebra

The sum of three consecutive natural numbers is 651, find the numbers. 3*7*31 21*31=651 is what I put for my answer but that was incorrect on the homework. Please help me Another Question I had problems with was :Your weekly paycheck is 25 percent less than your coworker's. ...

Management for Organizations

Please, Would someone check my answers??? Thanks. 7. The organizing function includes all but one of the following activities: (D) A..job design B..increasing departmentalization C..establishing authority relationships D..destabilizing authority relationships 2. Why are small ...

Spanish-Please check SraJMcGin

Hi, I redid some of the answers as suggested yesterday from someone who responded to my post. Could you please see if I did them correctly-Thank you- I made the corrections-someone yesterday redid a question but the questions shouldn't be redone-that's my homework-the answers ...

res ipsa loquitur

please check my answer thank you What is res ipsa loquitur and what does it do ? My answer : Res ispa loquitur is a latin tern meaning the thing speaks for itself. This theroy is not often used. Res ispa loquitur is a rule of evidence that creates a presumtion that the ...

Physics(please check)

A 53-N crate is suspended from the left end of a plank. The plank weighs 21 N, but it is not uniform, so its center of gravity does not lie halfway between the two ends. The system is balanced by a support that is 0.30 m from the left end of the plank. How far to the right of ...

Algebra 1

Will you please check my work? :) Choose ALL (if any) applicable terms for the events described, then calculate the probability of the events. Jason has a cube with colored sides: red, orange, yellow, green, blue and purple. 1. Rolling a red or a primary color. Choices: ...

Math: Please check

Simplify: -11 square root 112 *A.) -44 square root 7 B.) -176 square root 7 C.) -27 square root 7 D.) 4 square root 7 Thank You

Chemistry (please check)

2) Calculate the Molar Enthalpy of Neutralization (ΔHn) in kJ/mol of the reaction between a monoprotic acid and a monoprotic base, given the following information: The temperature change equals 5.06°C, 50.0 mL of 1.00 M concentration of Acid 50.0 mL of 1.00 M ...

English

Hello, can someone please check my answer? Which sentence best expresses the meaning of the following aphorism? Fools rush in where Angels fear to tread. - Alexander Pope A. Angels and fools are never seen together. B. When angels know to stay clear, fools come rushing in. C. ...

algebra

How do you simplify [2/(x+4)]+2 ----------- [3/(x+4)]+1 I know the answer is 2(x+5)/(x+7), but I have little idea how to get there! Please help?! multiply your fraction by (x+4)/(x+4) you end up with [2 + 2(x+4)]/[3 + (x+4)] simplify and you will get your answer. oooooooh thanks!

Algebra

I need help refreshing my memory. How can you tell if a problem like this has a solution or not? 4x^2 I forgot how you can tell please refresh my memory. Thank you! :)

algebra

find the L.C.D of each of the following and groups of fractions and then express the fractions of each group in terms of the L.C.D of that group... please show work 1\2,3\4,11\16 2\3,1\8,5\12

algebra

Can someone please help. When you solve a system of equations by the substitution method, how do you determine whether the system of equations is inconsistent? Thanks

algebra 2 help please

7 girls audition for 12 roles in a school play. What is the probability that at least 2 of the girls audition for the same part?

Algebra

If a number is not a rational number then it is a? 1.an integer 2.an irrational # 3.a whole # 4.a radical I believe its irrational but that seems to easy? Please help

Algebra

Can you please show me step by step to the answer you have given me. -1/4(8x+2). I still do not understand how you came up with the answer. Thank yooi

Algebra

Help Please Write a function rule that represents each sentence. 1. 11 less than the product of a number y and -2 is z. 2. 5 less than the quotient of a number n and 4 is m.

Algebra

Maria and Charlie can deliver 50 papers in 2 hours. How long would it take them to deliver 35 papers? formula please

Algebra help please!

Which of the following angles is NOT coterminal with the other three? A. 591 degrees B. 231 degrees C. 51 degrees D. -129 degrees

Algebra, help please!!!

The youngest person in the company is 21. The oldest is 66. A: What is the range? B: Is the range a good measure of spread for the ages in the company? Why?

linear algebra urgent

For the orthogonal matrix A = 1/sqrt(2) -1/sqrt(2) -1/(sqrt(2)) -1/sqrt(2) verify that (Ax,Ay)=(x,y) for any vectors x and y in R2. Can someone please explain this

Algebra

Write y = 3x - 1 in function notation and evaluate the function at x = 0, x = 3, and x = z. Please label your values and use the correct notation when posting.

Algebra

Find the simplified form of each expression. 1.(4/7y^5)^2 A.8/14y^10 B.16/49y^25 C.16/49y^10 D.8/14y^25 2.(x/2y^5)^-2 A.x^2/4y^10 B.4y^25/x^2 C.4y^10/x^2 D.x^2/4y^25 I think #1 is A and #2 is A Please correct me if I'm wrong.

Algebra

Can someone show me how to Simplify the radical expression. square root 363 - 3 square root 27 (in steps please)

Algebra

Divide: (y^2-y+4) divide by (y+3) I worked it out, but don't know how to put my answer can you please do it too and show me what the answer is. I used long division.

Francais

Could you please check this short paragraph for mistakes? Thank you, I appreciate it. Quand Heffner a pensé de créer sa société il vivait dans un motel et il il n'a eu aucun espoir. Sa société ne faisaient pas bien. Cinq ans après être parti de la maison, il n'a eu ...

english 6th

Please check for errors...THANKS Plural possessives Some careers were once mens' jobs. Any job can also be a woman's work. A firefighter's job is very dangerous. Tugboat pilot's training takes seven years. Dolores's dream is to be an astronaut. Everyone waited for reports of ...

English

Color of Our Friendship Friendship is full of colors. Red is action. It makes us feel active. Yellow is happiness. It makes us feel happy. Gray is age. It keeps us living harmonously together. Friendship is full of colors. (It is a poem I made. Would you check the poem and ...

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