# Algebra, help + check please

106,831 results, page 13

1. ### Algebra

The pattern is: 4, 8, 15, 25 Is the formula: 2.5n + 1.5n??? If you are wondering what the standard formula is, check my previous question. Thank you! :-)
2. ### algebra

can you check if im right? -36/9 = -4 -52/ -4 = 13 (-5) x (-20) = 100 -63/-9 = 7 (-15) x (2) = -30 22 /-2 = -11 (13) x (-6) = -78 -100/-5 = 50 (-60) x (-3) = 180 -240 / 30 = -8 (43) x (-8) = -344 -169/ -13 = 13
3. ### Math Help? Check my answers.

Simplify 6 x 3 divide 3 - 1. Pre-Algebra? Answers: 2 3 5 6 My answer: 5

What are the solutions of the equation: x^2 + 14x = -130 ? a) 2, -16 b) 10, -13 c) -2, 16 d) no solution (~~ MY ANSWER d. ~~)
5. ### Chemistry

I have answered this as best as I can please can you check and help me with the ones I don't have a clue about? Thank you Which of the moelcules listed below possesses a permanent dipole? Think about the shape of the molecule and look at the electronegatvity values... a) CO2...
6. ### World history; Check:P

I can't seem to understand what this question is asking, but I have tried to answer it. Can someone check it please? :) Why were the epics of importance to the Greeks of the Dorian period? Answer: The Dorians were far less advanced than the Mycenaeans. The economy collapsed ...

Please check my Answers 1. Which is a common viral disease? A. strep throat B. lyme C. tuberculosis D. common cold*** 2. which statement is about the flu? A. there is no cure B. there is usually a fever C. It typically lasts 3-7 days D. it spread by contact with infected ...
8. ### Algebra

Please help me with this Algebra problem: The length of a rectangle is 91 less than six times the width of the rectangle. If the perimeter of the rectangle is 84 centimeters, what is the length of the rectangle? Write a system of equations for this situation and find its ...

Simplify (2sqrt(5)+3sqrt(7))^2 ~~~ Can you show the steps. I want to learn how to do it now so I won't have to pester y'all again with my feeble algebra questions :3
10. ### Algebra/Calculus

If x + y = xy = 3, what is x^3 + y^3? I have tried solving this using algebra alone, but my teacher told me to use complex numbers, and I don't know how to start. Can someone please guide me to the solution to this problem? Thanks Kevin
11. ### algebra help

(t^3-3t^2+5t-6)divided by (t-2) t^2 t-2! t^3-3t^2+5t-6 t^3-2t^2 then t t-2 t^2 +5t -6 t^2 -10t then 15 t-2 15t -6 15t -30 then remainder 24 check my work
12. ### Algebra 2

Solve the following for the indicated variable: #1. 2x+3y=7 solve for y. My answer is y=(7-2x)/3 Could you check this for me?
13. ### Algebra HELP

(3((3x-1)/(x+3)) - 1) / (((3x-1)/(x+3)) + 3) What would the answer be? I already found the answer but I just want to check.
14. ### algebra plz check answer

How many real zeros does y = 3x 4 - 2x 2 + x - 3 have? A. 5 B. 4 C. 3 D. 2 my answer is d
15. ### Algebra

In the expression -7x - 5x^2 + 5, what is the coefficient of x? A.) 7 B.) 5 C.) -5 D.) -7* I don't know if -7 or 5 is the coefficient, but -7 was my first choice. Can someone check this?

25-x^2 6x^2 ------ * ------ 12 2x *I got: 5-x/2 No. Try again. Can you tell me what I did wrong please.? You have to factor the numerator, you should have two factors for the first, and one for the second. In the denominator, you will have 24 x. I think the x divides out, and ...
17. ### English 10-Check/Help

Part 1: Poem Structure Check my following answers below, and I need help with theme? Dx In this part, you will analyze the structure of the poem. Please fill out the following. Title of Poem: Annabel Lee Poet: Edgar Allan Poe Theme: Type of Poem: Narrative poetry Style of ...
18. ### algebra

Please check The delivery truck makes more than 85 stops each day. X>85 In a densely populated area,a car's speed should not exceed 35 mi/h. X<35 The bakery had fewer than 8 loaves of bread left 8<x We expect at most 400 students to attend the football game. X> or ...
19. ### Algebra II (check)

Assume that no denominator equals 0. sqrt 16x^2y^4 = sqrt (4x)y^2 = 4xy^2(answer)
20. ### Algebra

Could someone help me check my answer? Thanks. -Write each quotient as a complex number. 1. 3i/-2+i (Is the answer for this one = 3/5-6i/5)
21. ### pre algebra answer check

Use a proportion to answer the question. 21 is 4% of what number? 21.875???
22. ### college algebra

let f(x) be polynomial function. explain how to use the factor theorem to check if x) is a factor of F(x)
23. ### algebra 2, check my answer plzzzzzz

What is the inverse of f(x)=5x3 ? Enter your answer in the box. f−1(x) = 3sqrt25x/5
24. ### Informal Logic

<21{3[2(08)44]}> Surveys show that people who use calorie information to decide which foods to eat consume on average 100 calories less than they would if they didn’t check calorie information before eating. Strangely though, people who use calorie information in this ...
25. ### English

1. She is Marie Curie. She is a French physicist. However, she was born in Poland. She discovered the pure radium. She was awarded two Nobel Prizes. [She was the only person to be awarded two Nobel Prizes.] (Would you like to check the passages above? Check them please.) 2. He...

28. ### algebra 1

I have been out of school for a long time and not understanding these questions. Please help why is 5^0=1 can you explain when (-3)^n is positive and when it is negative.

10pm. I asked "Show mathematically that to produce an image that is the same size as the object in a concave mirror, the object needs to be at twice the focal length from the mirror." and bobpursley answered: "1/o + 1/o=1/f 1/2f + 1/i=1/f 1/i=1/2f i=2f M=di/do= 2f/2f= 1 check ...
31. ### algebra (check plz)

write an equation in slope-intercept form of the line that passes through the given points. a. (-6,1), (3,-7) b. (-2/3,4), (6, -1/3) write an equation in point-slope form of the line that passes through the given poitns. c. (-2,5), (4,-3) d. (1/2,-1), (-2/3,6) ...

Please check these for me 1.I have to clean the house. Yo tengo que limpiar la casa. 2.I am going to the library Yo voy a la biblioteca. 3.I have to clean the house. Yo tengo que limpiar la casa. 4.I hope to get good grades Yo espero que sacar buenas notas.

please see if I am right thanks Mary bought four shirts for \$ 22.00 each, a pants suit for \$212.00 and dress shoes for \$85.00 Her sales tax is 6 % what is the total of her bill ? \$22 x 4 = \$88.00 \$88.00 \$212.00 + \$ 85.00 ------------------------------------- \$ 385 x 0.6...
34. ### Algebra

Convert the simplified parabolic equation y=3x^2-30x-7 to standard form. 3x^2-30x-7 3x^2 -30 x -7 +75 -75 3(x^2 -10x + 25) -82 3(x-5)^2 -82 or y = 3(x-5)^2 -82 check that.
35. ### Algebra

Solve by graphing. Check your solution. y > 2 y > -x + 2 Am I supposed to graph this one on a line or on an actual graph? Thank you.
36. ### Algebra, check.

10z-4=10z-2 So I subtract 4 from the 2 right? and 10 from the ten, but then itd be 0=2 There is no soloution for this problem.. correct?
37. ### Algebra

If y is a positive integer, for how many values of y is 3/2y greater than 1/4 and less than 1/2? F. 0 G.1 H.2 I. 3 J.4 Check this. 1/2>3/2y>1/4 Only 4 and 5 work. Thus, there are 2 values of y.
38. ### Algebra

Check my answer- Solve the system of equations algebraically. Show all of your steps. Y=x^2+2x Y=3x+20 My answer: X^2+2x+3x+20 X^2-x-20 (x-5),(x+4)=0 x=5, x=-4 y=35, y=8 Thank you!
39. ### Algebra 1A

I am so lost! Solve the equation and check the solution -6(t-2)-(t+3)=2 The solution to t is ??
40. ### Algebra repost for Suzia

Algebra - Suzia, Thursday, September 27, 2007 at 7:52pm Please explain these problems 5-x-x=-1 a/2+1/5=17 3.5=12x-5x a-4a=2a+1-5a
41. ### Algebra

Check my answer please! A tower of blocks has 1 block in the top row, 3 blocks in the next row, 5 blocks in the next row, and so on. there are six rows in all. how many blocks are in the tower? 11 blocks 47 blocks 36 blocks *MY ANSWER* 49 blocks
42. ### Special Education Setting Teachers Aide

children with a language or speech disorde are A)sometimes suffering from an aphasia.(my answer) B)always learing challenged. C)able to receive special help only after the third grade. D)unable to use communication boards. can someone please check if this is right please
43. ### chemistry

After your explanation I try to solve it, so would you please check my work again. Thank you! a)

What does the main conflict of the play seem to be? My Answer- poverty + discrimination
45. ### English

Please check my answer thanks :) His mother is a Doctor. Is this sentence correctly capitalized. I said yes
46. ### calculus

f(x)=(9x^2–8)^6(4x^2–5)^11 Find f'(x) I got (9x^2-8)^6 *11(4x^2-3)^10*8x+((4x^2-3)^11)6(9x^2-8)^5(18x) but im doing something wrong can someone check my work please
47. ### figured out problem please check my work

Kyle is 3 years old and the twins are 9
48. ### History

Could someone please check my work below where the time says 8:03. Thanks god Bless
49. ### double check me please. math 012

4(5-w)=-w _________ 3 this is a fraction with 3 being on the bottom. do you come up with w=20? thanks
50. ### math

v = h(6 - (1/3)(2 - (2 h/5))^3 ) i try to solve this equation and i got (350+4h^2)/75 im not sure if this is correct please check it for me!
51. ### check my work please!

ok i have to divide complex numbers: question is: 1-2i+i^3/1+i this is what i did: 1-2i+i(-i)/1+i 1-2i-i^2/1+i 1-2i-i(-1)/1+i 1-2i+i/1+i 1-3i/1+i*1-i/1-i 1-i-3i+3i^2/1-i+i-i^2 1-i-3i+3(-1)/1-i^2 1-i-3i-3/1-(-1) 1-4i-3/2 -2-4i/2 my answer is -2i-1 is that right?
52. ### MATH

please check my answers prime factorization of the number 117 =3x3x13 6/25 divided by 2/15=5/9
53. ### SOCIALS

can anyone please help me:-) check out my earlier posts on page 2 you don't have to help me if you don't want to but I'd really appreciate your help, if you do
54. ### HELP

I won't be on here till tom. morning, so please before then check my posts. Good Night.
55. ### Math Inequalities

4(r-7)+2>5(r+3)-28 I tend to make things too difficult.. can someone please check my answer? {r l r > 31/4}

identify the latin basein the word aggrandize a)ize- B)ag- C)grand- D)***aggra-

Find the cross product of the unit vectors. j X k My answer was -i. Am I correct?

59. ### Chemistry

Please check if I've balance the equation correctly. C8H18 + 25/2O2 --> 8CO2 + 9H2O

Find the x coordinates of all relative extreme points of f(x)=1/4x^4 + 2/3x^3- 3/2x^2 + 4 f'(x)=x^3 + 2x^2 - 3x = 0 (x^2 + 3)(x-1) = 0 x=-3 x=1 x=0 Is this correct?

Find the x coordinates of all relative extreme points of f(x)=1/4x^4 + 2/3x^3- 3/2x^2 + 4 f'(x)=x^3 + 2x^2 - 3x = 0 (x^2 + 3)(x-1) = 0 x=-3 x=1 x=0 Is this correct?

63. ### Geometric Series (bobpursley)

Could you please check my same post again, I had another question.
64. ### Mrs.SueALGEBRA order of operation problems

Can you please check if i have these right? 3 + 15 - 5 x 2 = 8 5 x 6 + 2 x 4 = 38 48 / 8 -1 = 5 68 - 12 / 2 /3 = 66 6 (2 + 7 ) = 54 25 - (6x4) = 1 3 [ 9 - (6 -3)] -10 = 8 60 / (3 +12) = 4 4-2 + 6 x 2 = 14 18 / (5 -2) = 6 16 +24 / 30 -22 = 5 2[4 (9 -7 ) + 1 ] = 18 (8 / 8 + 2 + ...
65. ### Math

Equation Models Question Symbolic Model 2x+3=(-5) Answer and check the solution please.
66. ### college alg

the function f(x)=6x+9/3x-7 find the inverse and check answer f^-1(x)=? please show work
67. ### college alg

the function f(x)=6x+9/3x-7 find the inverse and check answer f^-1(x)=? please show work

y=1.5 + 76.95t-(1/2)(9.8)t2 = 303.6 I am not sure how to arrive at this answer. I am confused because there is a t and a t^2. Thank you for your help!
69. ### math

please check to see if I have this right. Divide and simplify to lowest terms. 2x^2-8x/5x-8 x-4/5x-8
70. ### alg 2 check?

1.)solve for n:-7n-21=-63 my answer: n=3 is this correct? please explain 2.)identify the x and y int for te equation 3x-4y=12.

find the asymptotes for the following inverse function(VA is X and HA isY) y=7/(x) -4 i get VA: x=0 ,and HA :-4

Can you check this problem, please? n/((3/4))=5/9 Ans: multiply both sides by (3/4) n = 5/9 * 3/4 n = 15/36 n = 5/12

x:1,2,3,4,5,6,7,8,9 ---------------------------------------------------------------------------------- y:0.8,2.1,3.1,3.8,5.2,8.4,6.9,8.1,9 (which point would be considered an outlier? my ANS:(9,9)? IS IT RIGHT?

If the coordinates of points A and L are –4 and 8, respectively, then the midpoint between them has a coordinate of..... A- 0 B- 2 C- 4 D- 6 My choice is B.
75. ### French

Please check this sentence: Un sport la fille n'aime pas est nager.
76. ### Chemistry

Please check my work: What is the pOH of a solution containing [H+] = 1x10-11 M? log H=14-11 3 right
77. ### Math

3/7 x 14/15=2/5 1 1/3x 5/8=5/6 1 2/9x 1 1/2=2 1/3 can you please check the above problems and let me know if I got the correct answers in simplest form.

The center of dilation is (0,0) and the scale factor is 7. If A(3,4), then which is the distance between A and A'. A. 5 B. 7 C. 30 <<<< D. 35
79. ### algebra

How can I find the Domain and Range for y=1/-x -2 And y=-4/x-4 +4 they also ask me to compare these 2 problems with graph of y=1/x please help me solve these algebra problems.

81. ### Chemistry

Combusting 44.8L of H2 with 22.4 L O2 (both at STP) results in the formation of 44.8 L of H2O if the reaction is maintained at the same conditions (STP) and goes to completion. Given the heat of formation of water (= -241.8 kK/mol) calculate a) the PV work b) the heat evolved ...
82. ### algebra

Which statements represent the function of the yearly cost in dollars, y, based on x, the number of game tokens purchased for a member of the arcade? Check all that apply.
83. ### Math-truth table, please check my work!

p -> ~q , p -> q Are these Equivalent statements? This is my try. Please let me know if these truth tables are correct. p -> ~q p q p -> ~q p q p -> q T T T T T T T F T T F F F T F F T F F F T F F T The statements are not equivalent.
84. ### Spanish-Please check my work-Thanks

Could someone check-I had to correctly conjugate the verbs. Mis hermanos prefieren un pastel de chocolate. Mi padre prefiere una corbata azul. Mis amigos quieren una fiesta. Yo quiero muchos regalos. Nosotros queremos una fiesta. Ellos quieren bailar. Nosotros preferimos ...
85. ### PHYSICS (CHECK WORK)

I am getting the wrong answer. Can you please check my work? My answer is off by a multiple of ten. A sample of an unknown material appears to weigh 295 N in air and 165 N when immersed in alcohol of specific gravity 0.700. (a) What is the volume of the material? ___________m^...
86. ### math

22and9/10's - 18and2/5=? You need to get the same denominator in the fractions. 2/5 = ? / 10 Then subtract the fractions and the whole numbers. If you post your answer, we'll be glad to check it for you. Raven: Please don't post your entire name on any website, or reveal ...

1. How many 2-digit numbers can be formed using only the digits 2, 3, 5, and 6, if the digits are not to be repeated within a number? 11 12** 10 2 2. How many different ways are there to rearrange the letters of the word EXAM if you don't care if the result is a recognizable ...

Find an equivalent inequality with absolute value #1: -5 < y < 5 #2: x < -4 or 4 < x I'm not sure at all how to solve this problem. Please walk me through the process. Thanks!

Please help. I have been trying to figure this problem out for an hour now. Solve the following system of equations. X + 8y = 5 (1) x=8-8y (2)

find an equation of the linear function f using the given information. please show all steps and work f(-1)=1, f(1)= -2

Will someone please help me withthis question I couldn't solve it. What is the length of the segment whose endpoints are A(2, 3) and B(10, 7)? a)2 Sqrroot29 b)2 Sqrroot41 c)4 Sqrroot2 d)2 Sqrroot5
92. ### Algebra: x and y intercept, someone check please

1. Find the x-intercept and the y-intercept of 8x - 2y = -24. a. x = -7, y = 2 b. x = -4, y = 14 c. x = -3, y = 12 d. x = 7, y = -2 answer: d 2. Find the x- and y- intercept of the line 2x + 3y = -18. a. x-intercept is 18, y-intercept is 18. b. x-intercept is -6, y-intercept ...

94. ### Algebra 2

factor each polunomial completely. May I get some help please? x2(squared)-4 1X2-4=1x2+(-4)= -3x? I'm not sure I know how to factor `')brie~ To indicate x squared, use x^2. You need to get the numerical product of 4 without getting a middle x term. This means that the ...
95. ### Algebra

Can I get some help on this one I need to know if I got the right answer on this equation. Factor. v^2+12v+36 my answer was (v+6)^2 Can you check this for me.
96. ### Algebra - check to see if correct

5/(y-3)=(y+7)/(2y-6) i got no solution and i got y=3. Solve each equation. Watch for extraneous solutions.
97. ### Algebra

Solve the equation and check for extraneous solutions. 10^((x^2)+1)=100,000 How do i handle this when the exponents have exponents?
98. ### pre algebra check

Use the percent equation to answer the question. What percent of 130 is 156? I get 202.8??