# Algebra, help + check please

104,559 results, page 17

### biology

Can someone please check this defintion. What else can I put? Mutation=change to the base pair sequence of the genetic material of an organism What is 'Heredity'?

### physics: relativity

I think I can rearrange the Lorentz contraction equation, solving for v using: v=sqrt[1-(L/Lo)^2] x c^2 Would someone check my thinking please? Thanks

### math

I need to check my answer... please help... the prime factorization in powers of primes of the number: 16380. 5460 to the power of three is this correct

### math-PLEASE CHECK

using the pythagorean theorum you have a right circular cone with a radius of 3 and height of 6 is this how you would figure this out c^2=3^2+6^2 c^2=9+36 c^2=45 c=6.7

### chem can u check answer please

what is the hydrogen ion concentration of an aqueous solution with a pOH of 9.262? I got 5.47X 10 ^-10 is this correct? Thanks Andy

### English

Can you check this sentence, please? 1) The subtitle to the novel is emblematic of Frankenstein's being an overreacher. He has to keep his face covered because of his horrible scars.

### MATH(please check only)

Number of Cans of Corn Cost 3 $1.95 5 $ 3.25 6 $3.90 9 $5.85 Write an equation to represent the data how do i do that I think the answer is 0.65n = c

### Physics

Hi, Which correctly expresses the relationship between wavelength (L), speed (V) and perios (T) of a sinusodial wavform ? a) L = T/V b) L= 2fxV/ T c) L= 1 / V x T D) L= V/T e) L = V x T f) L= V x T/ 2f I feel it is option (d) ..please check for me .. and thanx

### Art

Thank you, Writeacher. Could you please check if everything is possible? 1) What does Pamela recount to her mum in letter XV? What does Mr B accuse her of and how does she apologize herself to him (or justify her behaviour)?

### Math

Please check my answers, which are at the bottom of each question...:) remove brackets a) 4(a+3) d) 5(2+d) 4a+12 10+5d b) 3(2b+2) e) a(3a-6) 6b+2 4a-6a c) 7(3c-1) f) 2(x+y) 21c-7 2x+2y simplify the following: a) a+a+a+a d) a2 xa3 4a a5 b) a x a x a e) 3y+6z+2y-4z a3 5y+10z OR ...

### math (check please)

find the volume of a square pyramid with a base length of 9cm and a height of 4cm. ANSWER: 108 cm^3 (is it right?)

### Science (Please check!)

this device is a burner from an electric stove. it is used to transfer heat to a pot by a. conduction b. convection c. radiation I think c.

### Math! Please check!

Okay, this is the link but without the spacing:::: h t t p : / / t a k e e x a m . n e x t . e c o l l e g e . c o m / e c / c o u r s e s /4 6 1 2 2 / C R S - M T H 2 0 3 A- 3 9 5 0 2 5 8 / G M T _ Q 1 1 _ 2 . b m p What is point P in triangle XYZ called? A- centroid B- ...

### Science

which of the following helps ensure a groups access to resources it needs for survival? My answer is D. Territorial Behavior. Please check if this is right?..

### math check

Would some please check these and see if I am doing them right thank you 1. Gasoline is about $2 per gallon. You use about 1 1/2 gallons each day driving to and from work. How much should you budget for gasoline over the next month (about 20 workdays)? Answer 1 1/2 x $2.00 = $...

### Health (Ms. Sue Check Please)

1.Kori's doctor says her muscular strength and endurance are excellent, but he worries about Kori's cardiovascular health. Kori enjoys weightlifting, softball, basketball, and bowling. Increasing the frequency of which activity will best improve Kori's cardiovascular endurance...

### Physics, still don't get it!

I'm sorry bobpursley I don't understand your response, please clarify. When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, its frequency is 12 Hz. When another object of mass m2 is hung on the spring along with m1, the frequency...

### Algebra-Partial Fractions

Can you please help me with the following questions please, I don't understand them. I know the general rule about them. Write the partial fraction decomposition of the rational expression. (x^2+4x-1)/(x^2+3)^2 (4x^3+4x^2)/(x^2+5)^2

### algebra 2

i need answers to the pennfoster book matrices and determinants exam number :00703500. please make sure all the answers are correct. please and THANK YOU (:

### college algebra, Please help!!

use the intermediate value theorem to show that the polynomial function has a zero in the given interval. f(x)=4x^3+3x^2-8x+7;[-5,-2] please show all work

### chemistry/please double check

Hi, I just need to know if I finally got this exercise right. Calculate the amount of heat in kilojoules released when 50 grams of steam at 125 Celsius are converted to 50 grams of ice at -125 Celsius. so, qw= 50*4.184J/g C (125 C-o)= 26.15 x 10^3 qi= 50*2.09*(-125)=-13.065 KJ...

### algebra

Please let me know if this is correct: rewrite each equation as a function of x. -3x+4y=11 I got 4y=3x+11 y=3/4x+11/4 f(x)=3/4x+11/4 Please tell me if this correct. Thanks

### algebra

(2-x)/(2x+6)+ x/(x^2-9) Can some one please help solve this one because I stuck? I don't know how to sole this, so please somebody help!!

### algebra

can someone help me find the difference of 3/2x-1 - 5/2x-1 please show step by step process please

### algebra 1 help please ASAP

Divide and simplify. 1. 2y^2 - 7y + 3/2y^2 + 3y - 2 divided by 6y^2 - 5y + 1/3y^2 + 5y -2 2. x^2 + 13x + 12/x + 2 divided by (x + 1) Please explain! Thanks!

### check my answers? language arts

1. The fire's angder could no be contained. A). personification *** B.) simile C.) metaphor 2. The flames ran along the deliberate rows of vines, like long curved fingers reaching for the horizon, lighting the night sky. A). personification B). simile C). metaphor *** 3. ''We ...

### English

Can you please check these sentences for me, please? Thank you. 1) Why was the 18th century England called Augustan? 2) What were the Augustan (not Augustan) interested in? 3) Who were the first political parties and who did they descend from? Who were they supported by? 4) ...

### Algebra 2

Hello can you please help me to generate a number line to use in Algebra. Can you attach one for me and where can I find one on line that is printable. Thank You.

### check my answer please

A ball of mass 2kg travelling in a straight line at 4ms^-1 is acted on by a force of 3N acting in the direction of motion for 5 seconds. What is the speed of the ball after 5 seconds? vf=vi+at but a=force/mass a = 3÷2= 1.5 vf=4+1.5×5= vf=4+7.5 vf=11.5m/s^-1 Is this correct? ...

### Math - Please Check My Answers

Please help me with the following two problems: Find the greatest possible error for each measurement. 512 m A. 0.5 m C. 0.5 cm B. 5 m D. .005 cm I think the answer is A. Is this correct? Find the greatest possible error for the given measurement if it is to the nearest 10 ...

### Math/Algebra HELP

Can you please check these answers: 1. If the first Now= -9, which equation represents this sequence? -9, -4, 1, 6, 11 A. Next= Now -5 B. Next= Now + 5 C. Next= 5* Now -1 D. Next= 5* Now + 1 Answer: A 2. Which inequality statement is true? A. 8 < (a square root sign with 78...

### Chemistry: check answers

Please check. Thank you. 2. What is the reduction half-reaction for the following unbalanced redox equation? Cr2O72– + NH4+ Cr2O3 + N2 A.) Cr2O3 -> Cr2O72– B.) Cr2O72– -> Cr2O3 C.) NH4+ -> N2 D.) N2 -> NH4+ 3. Which oxidation-reduction reactions are best ...

### 8th Grade Algebra- Answer Check

Solve each system of equations, give the solution and state whether there are no solutions or many solutions. 1 )3x + 8y = 1 7x + 4y = 17 Answer: (3,1) 2) -3x + 5y = -7 9x + 2y = 38 Answer: (4,1) 3) 7r + 3s = 13 14r - 15s = -16 Answer: (1,2) 4) 2x - 7y = 42 4x - 14y = 64 ...

### Marketing Management

What ae subway limited target group? Are you asking what the Subway sandwich company targets as its prime customers? Please clarify your question and we'll try to help you. Actually i am totally lost at what i am really looking for. This was suppose to be another person ...

### English

Could you please check these statements, please? Thank you very much. 1) When the monster comes to life, Victor is horrified by the monster's physical appearance. 2)His pearly white teeth and shiny black hair contrast with his dull, yellow eyes, shrivelled complexion and ...

### math

Please check my answers! Simplify the product. 7x(x+4) A. 7x^2+4 B. 7x^2+28x <<<< C. 8x+4 D. 8x+11 Simplify the product. 4x (2x^3 - 7x^2 + x) A. 8x^4-28^3+4x^2 <<<<< B. 16x^4-7x^2+4x C. 8x^4-7x^2+x D. 16x^4-3x^3+4x^2 I just started learning about ...

### Algebra-please check my answers

Solve the equation by expressing each side as a power of the same base and then equating exponents. 9^(x - 9)/8= sqrt of 9 i got 13 4^(x + 10) = 8^(x - 6) i got 38 Solve the exponential equation. Express the solution set in terms of natural logarithms. 2^8x = 4.5 i got {ln 4.5...

### Algebra-- PLEASE help!

(x+3/4)^2 = 17/16 My teacher taught us a square root method, but I am confused with it on this one! I would prefer if you show me using square roots, but if you have another way, please help too! Thank you!

### Algebra

I posted this last night but it didn't get answered. So I'm posting it again with hopes that, this time, it will be answered. Please solve for x: |x-6|>7 I got x=6 as a final answer, but that doesn't make sense because 6 is not greater than 7. Please help!! Thanks :)

### Algebra II

Solve x^4 - 12x - 5 = 0 given that -1 + 2i is a root. I’ve used synthetic division to get the answers x = 1 +/- 2i , 1 +/- sqrt 2 I’ve having trouble checking the answers though because of that imaginary number. How can I check these kind of problems?

### College Algebra 1

Factor completely. Remember to look first for a common factor and check by multiplying. if polynomial is prime, state this. -36a^2-96ab-54b^2 I couldn't find the right answer.

### Algebra (answer check)

Where is the vertex of the graph of y equals negative x squared plus 2 x plus 5 located? (1,5) < it's not this one (1,6) (-1,3) <-- (-1,2) Which values best approximate the solutions of -4x^2+7x+5=0? 0.9 and 2.3 0.9 and 5 -0.5 and 2.3 <-- -0.5 and 5 What is the ...

### Math-check my answers!!!

Check my answers please!!!! I really don't know how to do these but I tried my best 1. Simplify. 3x^2+ 5x-5x^2-4x+5-2 A.-8x^2-9x+3 B.2x^2+x+3 C.-2x^2-9x+3*** D.-2x^2+x+3 2. Add or Subtract.(8x – 2y) + (3x – 4y) A.11x+8y B.4x-y C.11x-6y*** D.5x+2y 3.(5x^2-4x-1)-(-4x^2-4) A...

### math(check answers please)

please check my MATH. .Mr.jensen bought 2 2/3 gallons of gasoline yesterday.today he bought 3 1/2 more gallons.how many total gallons of gasoline has he bought? A.5 3/5 b.5 3/6 c.6 1/6 d.5 1/6(i picked this) Mrs.peters bought 7 1/2 yards of fabric.She needs another 4 7/8 yards...

### algebra

Janelle has $ 20 and is saving $ 6 per week. April has $ 150 and spending $ 4 per week , when will they both have the same amount of money ? i know by trial and error i will get 13 weeks, but how do i solve it by algebra ? please

### Algebra - can you PLEASE double check my work?

Part A: Use the properties of exponents to explain why is called the fifth root of 18. 1. What property refers to roots and fractional powers? My Answer: Rule of exponents 2. How does it apply to 18^1/5? If you multiply 18^1/5 by itself 5 times, you get 18. Part B: The length ...

### algebra

Solve the linear equation using any technique you have learned. Name the technique. Check. 3x + 12 = -7x - 28 I know the answer is x = -4 and I know that substitution is the technique that is used, but I can't figure out how to set this up

### Algebra 1 Check

This is the last question on my homework and I wanted to know if I got it right. Thanks! Which of the following inequalities is true for all real numbers of x? a.) x^2≤x^3 b.) 2x^3≤4x^2 c.) 4x^2≤(4x)^2 d.) 4(x-3)^2≥4x^2-3 My answer: C.

### algebra

im not to good at algebra so here goes im supposed to multiply 5.(3.2) i know im supposed to multiply both sides by 5 but be on that im not sure what to do help please?

### Math ; please please help.

1. Explain in detail how to determine the value of the independent variable in a quadratic relation if the value of the dependent variable is known. Please check my answer - You would substitute the value for the dependent variable, then you would solve for the independent ...

### Math

Please help me with the following by checking my answer. The length of the hypotenuse of an isosceles right triangle is √6 inches. How long, in inches, are the legs of the triangle? A. 3 B. 6 C. √3 - (This is my answer.) D. √6 I am not sure on my answer, ...

### 7th grade science Ms. Sue please check

Hi! Can you check my answers please and I need help on 4 and 5 I cannot find the answers!!!! Please help! 2. _____ transports materials within a cell and between cells and makes up ______ percent of most organisms. (1 point) Fat; 60 Protein; 40 Sugar; 75 Water; 50 3. Which of ...

### Math College Algebra

Find the zeros of the following USE ALL THE THREE METHODS FOR EACH NUMBER ( Factoring, Completing the Squares and Quadratic Formula) 1.f(x) =3x+5 2.g(y)=y^2-3y+2 3.s(xl= -6x^2-13x+5 Please help me I need this before 2 hours to come. Please help me hpw to do this . Please help ...

### language arts(CHECK ANSWERS)

please check these answers there really quick. 11.the zoo has recently acquired pandas,giraffes and lions. were does a comma belong? A. After and B. After zoo C. After giraffes(I PICK THIS) D. After acquired 12.Hector would you please relax? where does a comma belong? A. After...

### English

Please check my answer THe cat licked it's paws while the dog watched. Does this sentence show the apostrophe used crrectly ? I said yes

### English

Please check my answer thanks :) In research , you must document the source of all specific information unless it's common knowledge. I said True

### sensory abilites of the dog

Please check my answer thanks Because dogs are pac animals, they prefer to eat A. Alone B. In the evening C. at dawn D. with others I said D

### Health/ Basic Clinical Procedures

please check my answer thanks what is the normal range of a pulse rate of an adult A 60 -80 B 60-110 C 75-120 D 80-140 I picked B

### Health/Specialty Exams and Advance Techniques

please check my answer thanks What can be done while performing a cystoscopy of the bladder ? A. biopsy B. U/A C pyelogram D. catheterization I think it is A

### spanish

please check: "Te gusta cantar?" "Claro que si! Soy miembro del _____ de la escuela." a. equipo b. anuario c. orquesta d. coro D?

### Math

Please double check me. Terry went on a 60 mile canoe trip. on first day, he traveled 21 miles. what percent of the total distance was that? 35%

### Math

Please double check me. Brett saved $670 at the bank. he want to save $3800 for a trip to disneyland. what percent of his goal has been reached? 17.6%

### Math check answer please

Amy paid $60.12 for a pair of running shoes that were 15% off. What was the regular price. I am coming up with 69.14 (round to nearest cent)

### Math(Please check)

Translate the following sentence into a mathematical equation: "The area, A, of a circle is the product of the number pi and the square of the radius, r." A=pi X r^2 Is this correct?

### math(Please check)

Find the real solutions of the equation: 14x^2 - 5x^2 - 1 = 0 I know that you have to use au^2 + bu +c = 0 so u^2 - 5x -1 which is prime. So would the answer be that the solution is the empty set?

### Comprehensive English

Writeacher please check my last post, you never replied.. it kind of left me wondering.. you said you would give me some ideas.

### grammar

Can you check these sentences, please? "I've always loved animals and felt I could communicate with them. To become a veterinarian, I must carefully choose the right school."

### English

Hello. Will you please check the sentence for me? "The two sides have conducted negotiations and reached a compromise." Is it grammatically correct? Thank you very much for help.

### chemistry

Which of the following reactions have a positive ΔSrxn? Check all that apply. A(g) +B(g) -----> 3C(g) A(g)+ B(g)------> C(g) 2A (g) +2B (g)-----> 3C(g) A(s)+B(s)------> C(g) I picked the first one and it marked me wrong. Please help(:

### Art

Can you please check these two sentences, Writeacher? Thank you. 1) Each answer must be developed in no more than ten lines. 2) Only a monolingual dictionary is allowed.

### Teacher Aide-Pennfoster

Im almost done finishing this course online and I need to check my answers for Exam number 02604500 Helping Abused Children please.

### math

will someone check to see if I have this question correct please. divide and simiplify to lowest terms. __2x^2-8_ divided by __x-4__ 5x-8 5x-8

### Polynomials check my answer please

I need help bad i been doing this homework since i got home at 4:00 and am stuck on this problem. X -1 : X-2 =sum (x+1)+(x-2)=(x+x+1-2) diff (x+1)-(x-2)=(x-x-1-2) Product (x-1)(x-2)=(x^2-1)

### sociology

Of the following, which BEST characterizes India 1Single-party state 2Socialist 3Multicultural 4Authoritarian I think the correct answer is 4 can you please check

### math - pls check!!!

29) 4k - 1 >= -3 30) 6(c - 1) < -18 31) 3t > 5t + 12 32) -6/7y - 6 >= 42 33) 4 + x/2 > 2x 34) 3x + 5 <= 2x -8 35) 13.5a + 7.4 <= 85.7 36) 42w > 2(w +7) ANSWERS: 29) k >= -2 30) c < -12 31) t < -6 32) y <= -56 33) x < 8/3 34) x <= -13 ...

### please check my answers!!!

All of the following advances in technology contributed to the Age of Exploration EXCEPT the mariner's compass. circumnavigation. the astrolabe. the caravel. ***

### Vocabulary

Mary gulps down a cup of tea quickly. I am not sure whether use present or past tense. Please help to check. Thanks & regards,

### Writing

Please check this Apostrophe: 1) Kates' sister 2) the giraffe's neck 3) the parent's anniversary 4)the senator's cars 5) Toms' folder 6) the deer's habitat

### Math (please check my answer)

Write a proof for the following. I have 2 answers but I don't know what the other 2 would be? Can anyone help?i68.tinypic(.)com/k2nw9.jpg

### Social Studies

In this section of the Mahabharata, Krishna talks about doing one's duty. 1. Ramayana*** 2. Veda 3. Upanishad 4. Bhagavad Please check my answer

### Can anyone check this? - Math(integration)

The question can be found at display.cgi?id=1501575066 I can't post website addresses. Please add the site name to the front. Thank you!

### MATH!

If the edge of a cube is increased by 50%, then the volume is increased by x%. Find x. PLEASE HELP. THANK YOU. Let Y = edge of a cube. Y + 0.5Y = 1.5Y = new edge of the cube. Then old volume is Y^3 New volume is (1.5Y)^3 = 2.375Y^3. %increase = ([3.375Y^3 - Y^3]/Y^3) x 100 = x...

### English

Can you please check if everything is OK, please? Thank you 1) At first, the three witches prophesy to Macbeth that he will be Thane of Cowdor and then king of Scotland. In the fourth act they tell Macbeth to beware of Macduff. 2) They also tell him that no man born of woman (...

### chemistry - Can you please check

Calculate the amount (g) of each of the following salts that need to be added to a 200 mL volumetric flask to produce a 2 M solution of S. CaSO4 (NH4)2SO4 Fe2(SO4)3 Dr. BOB222, Could you please check the following? Thank you. CaSO4: moles x atomic mass = .0400 x 32.066 amu = ...

### Algebra(check pt 3)

1)The dimensions of ST. S[7/12 -1/9] [-1/3 1/9] T[4 -5 2] [8 -1 3] answer=2x3 2)The pair of matrices that are inverses. P[3 1] Q[4 4] R[0 -1/4] [-4 0] [12 21] [1 3/4] S[7/12 -1/9] T[4 -5 2] U[-9 6 4] [-1/3 1/9] [8 -1 3] [-5 -2 3] V[3 1] [0 2] [-4 5] answer=S and R 3)Find the ...

### Algebra check

Convert to exponential equations. 12.) m=log3 9 I have the answer as 3^m =9 13.) log2 64=6 I have the answer as 2^6 =64 Are these answers right?

### Algebra - check to see if correct

-7yt/3x= ?/18xyt i got 6yt/6yt the answer being 1yt/18xyt

### pre algebra check

There are 30 students auditioning for new openings in a chorus. How many ways can you choose 4 students to be in the chorus? 30*29*28*27=657720

### Algebra Answer Check

What is the simplified form of the following expression? 7m^2 + 6.5n - 4n + 2.5m^2 - n a. 9.5m^2 + 1.5n (?) b. 4.5m^2 + 1.5n c. 1.5m^2 - 4.2n d. 9.5m^2 - 1.5n Simplify the following expression. 1/3(21m + 27) a. 7m + 27 b. 7m + 9 (?) c. 63m + 9 d. 7m + 81 What is the sum? 7/4...

### Algebra 2

Given a point (-2,5determine a point that satisfies the specified symmetry. 1. Origin (2,-5) 2. y-axis (2,5) 3. x-axis (-2,-5) 4. y=x ? Could you check if 1-3 is correct and could you help me on #4

### ALGEBRA PLEASE HELP ASAP

find the volume of a cylinder with a diameter of 16mm and a height of 5.7. A.2,292mm^3 . . . 4,584mm^3(i think its this one) . . . 689mm^3 . . . . 1,146 (but i also got an answer close to this but the tens place was 5) PLEASE HELP QUICKLY THANK YOU

### college algebra

please solve by method of substitution 0.3x-0.4y-0.33=0 0.1x + 0.2y -.21=0 please give all steps to solve.I think I understand the basic concept but this is little more complicated for me. Thanks in advance

### Algebra Please Help

Can you please give a example so that I can understand it better. 1)How can you tell whether a polynomial is written in factor form. 2)Construct a trinomial whose greatest common factor is 2x^2.

### college algebra

Can someone please help me find the x-intercepts and y-intecepts of this equation. I have the radius, and center but I can't seem to get the intercepts. x^2+y^2=16x-18y+145=25 Please show work. Thanks!!

### HISTORY

4. The United States cut off sales of oil to Japan after the A. Japanese attack on Dutch Indonesia. B. Japanese attack on Pearl Harbor. C. Japanese occupation of southern Indochina. D. Japanese occupation of Hong Kong. I chose the answer B. please can you please check my answer.

### pre algebra

Check whether (-4, -12) is a solution of the system of equations. y = 6x + 12 2x - y = 4 When the graphs of two equations are parallel, there are infinitely many solutions. y = x + 4 y = 3x solution: ( , )

### ALGEBRA! URGENT. Check Answers!

1. 18x^2 + 6 + 4x - 15x^2 - 4 + 13x Answer: 3x^2 + 17x + 2 2. 3x^2 + 6 - 2x + 5x - 4x^2 + 9 Answer: -x^2 + 3x + 15 3. 3x^2 + 5x - 7x + 3 - 5x^2 + 2 Answer: -2x^2 + 2x + 5 4. In the expression -7x - 3x^2 + 5. What is the coefficient of x? Answer: I think it's 7 or -7 Thanks!

### algebra functions check my answer

For each problem, construct two composite functions, . Evaluate each composite function for x=2 f(x)=3x g(x)=1/x f(g)*(x)=3x(1)/x x=2 3x(1)/x=6 g(f)*(x)=(3x)=2*3x=6 x=2 3*(2)=6*6=36

### franctional interests

Hello, I am having a difficult time breaking the following fractions down! what is the common denominator? 98/983 of a 1/2 % 187/983 0f a 1/2% 39/983 of 1/2 % 155/983 of 1/2% 34/983 of 1/2 % 64/983 of 1/2 % 25/983 of 1/2% 65/983 of 1/2% please send me an e-mail, please thank ...