188,239 results, page 40

1. ### Algebra

Help please (x^3 + 3x^2 - 2x+7)/(x+1)=11 I don't how how to solve this at all-the answer should be 11 but I don't have a clue how to get it-please show me this one so I can hopefully do my homeowrk-we did this in class today but I don't understand it

4. ### Social Studies

Which of the following personal completes the sentence correctly? One of my brothers just received ____diploma? A. his B. him C. their I think it is A or B. Can't quite decide. Please help.. Thank you
6. ### College Algebra

Write the following a+bi form i(3.14-3i) Please help. I believe that the answer is 3.14i-3i, which would be (3.13*-1)-3*-1. however this was incorrect please tell me where I went wrong
7. ### Algebra 1 (PLEASE HURRY!!)

{3x+y=-9 {-3x+-2y=12 What is the y-value of the solution to this system of equations? A. -7 B. -3 C. -2 D. -1 I tried them all and I must have did something wrong because none of them worked. Help please!! Thanks.
8. ### ELA

What differences became matters of life and death during the Holocaust? There are no choices in the question. SOMEONE HELP ME PLEASE. MS. SUE, WRITETEACHER,SOMEBODY HELP ME PLEASE
9. ### biology

someone please help me im confused and idk what im doingg how would i create a dna molecule model using straws, pushpins, and paperclips? help me, please.
10. ### pre calc

Can someone please help me f(x)=1/3 square root 1-2x and g(x)= (x-2)/x. Find and simplify (g of g)(3)/(g of f)(-24). The answer I got it -24/7 and i Am unsure If it is correct. Please show all work Thank you

i am sorry to bother you Ms. Sue but i need to present your proposal of a device that minimizes heat transfer. can you please give a list of insulators
12. ### maths

find the following square roots,using 'prime factors': i) 784 ii) 7056. 1 iii) 20---- 4 please give answers and tell me how to do. please
13. ### math

Find the Riemann sum associated with f(x)=4x^2+2, n=3 and the partition xsub0=-2 xsub1=1 xsub2=2 xsub3=4 of [-2,4] (a) when xsubk is the right end-point of [xsubk-1, xsubk] . (b) when when xsubk is the mid-point of [xsubk-1, xsubk] please help. i thought fora the anser was 216...
14. ### I really need help!

Hi, I really need instructions. Can someone please tell me how to make a coordinate plane and a rectangle on the plane in Microsoft Excel 2013 please? I really I need an answer soon because this is due today!!!! Please someone help fast! Thank You :/
15. ### Math Help!

Find 21/25 of \$27,000 A:\$32,140 B:\$5,670 C:\$22,680 D:\$23,760 Could you explain how it is C?? A new law requires that 12% of an individual's income be invested in the stock market. Your accounts show that you need to put \$420 in the stock market this year. How much did you earn...

17. ### english

Hello! I'm a French student,I'm 17, I've learned the beginning of Freedom by Jonathan Franzen. Sometimes, it seems confused as it's my second language. So I need help, please. Can you explain what happened with Patty, Eliza, Carter, Richard and Walter in the chapter 2: best ...
18. ### math

simplify -cd^-4e^-1 please specify parentheses or at least separate them so i know which groups fall under which exponents.
19. ### math

how to solve this equation: 20 8 4 4 = 18 20 + (8/4) - 4 = 18 :) I do not understand the 8/4 part on this answer? Please clarify Count . 8/4 = 2 if you add that to 20 you get 22 and if you then subtract 4 you get 18.
20. ### Please Check My Math Work

a^2 - 2ab - 15b^2 This is what I got: (a-5b)(a+3b) Correct! x^4+2x^3-4x^2-5x-6 DIVIDED BY x^2+x-2 My answer: x^2+x-3 remainder of -12\x^2+x-2

m-2 m+5 --- * ---- m-5 m-2 *I got : m+5 ---- m-5 you're absolutely correct. the m-2's cancel out and you're left with m+5/m-5 thank you hopefully you can help me with the others...
22. ### Math Help 222

x^2/x-4 - 7/x-4=0 *Please solve the rational expression. multipy both sides by (x-4) then you have x^2-7=0 x= +- sqrt 7
23. ### math/algebra

I keep confusing myself. Please check and show me where I am mixed up. (8+ ã48)/4 = (8+ ã(2 .24))/4 =1+2ã6 where am I missing it?
24. ### Math

How do you do unit rate? my teacher is really mean & yells when we ask questions like this. please help me outtt !!
25. ### math

Please can someone help? 3/(x-7) + x^2+5x My answer is: x^3-2x^2-35x+3/(x-7) Is this right? I converted x^2+5x so that it had a common denominator of x-7 so I could add them.
26. ### math

How would you express f(x) = cos3(x) in terms of first powers only? Please explain the steps
27. ### math

How would you express f(x) = cos3(x) in terms of first powers only? Please explain the steps
28. ### math

can someone check my answers please subtract -7.1-(-8.3)= 1.2 multiply (7.6)(1)(-6) = -45.6 divid 90/18 = 5 find the reciprocal of 1/3 (9-4= 5/3 -15-(-12) ---------- -18-(-18) undefined
29. ### Math

could someone please tell me when you are preparing an income statment , to calculate groos margin. you must do what? thanks :)
30. ### Math

could someone please tell me when you are preparing an income statment , to calculate groos margin. you must do what? thanks :)
31. ### Math

Ok, I have this problem that I'm really stuck on: This is it: Find each unit rate: 20 mi in 5 h. Please help I need this by tomorrow!
32. ### math

Can someone please help me with my previous question? I'm not sure what window to use for the equation I previously wrote.
33. ### Math

Please help me Place each of the following sets in ascending order 3/7, - 6/7, 1/7, - 1/2,2/7 Perform the indicated operations (-9)(5) / -3 16/(-2)*(-4) / 2*2*2+4 4-(-3)+1 / 2-2divide(-2)
34. ### math

I need help with a question... In this case k and l are parallel lines and contain the given points of: k=(2,5),(8,14) and l=(5,3),(11,y)... how do I calculate for y? Please help!
35. ### Math 116 algebra please check

Solve using the multiplication principle. -4x > 1/11 The solution is x > -1/44 Is this correct
36. ### math

Find the perimeter of a right triangle with legs of 20 cm, and 21 cm. a.882 b.82 c.70 d.47 I have no clue what to do. Can somebody help me with this please?
37. ### MATH

IM CLUELESS PLEASE EXPLAIN IM GONNA TAKE A TEST THANK YOU 3A2B+2A2B2AND-AB2+A2B2?
38. ### Math

I need some urgent help with two simultaneous equations urgently please...Show working. 3a-b=9 2a+2b=14
39. ### math

y=-7/10x-10/7 find the slope and y-intercept can someone please hlp, and explain how you came up with the answer

In acute triangle ABC, segment AD is an altitude, the measure of angle ADB=2x^2+40, BD=9x-3, and DC=6x+15. Find BC.

In triangle ABC, D is the centroid and M is the midpoint of segment AC. If BD=10 and DM=2x+1, find MB. Answer choices: 2 , 9.5, or 15.

In triangle ABC, D is the centroid and M is the midpoint of segment AC. If BD=x+9 and DM=6, find MB. Answer choices: 9 , 3, or 18.
43. ### math

keep trying to solve this one but canceling out x. i know x=-2 but i'm not quite sure how to get there in steps? 5^(2+3)-5^(x+2)=4 please help!
44. ### math

Can someone please check my answers? Thank you! 1. is (-8,-9) a solution of 2x+4y=12 No 2. Solve using the multiplication principle. -1/2x=-9/10 answer: 9/5
45. ### math

Please help. the question is: Estimate the quotient. Tell what compatible numbers you used 817 divided by 4
46. ### To Happy --

Please repost your math question -- and remove Ms. Sue's and my screen names from YOUR NAME'S space. Thanks. =)
47. ### math

please answer this question? Round off to the nearest half hour:14 hours and 54 minutes.

i need some help with determing surface areas of rectangular solids please. thank-you
49. ### Math

Please help with this problem! What is the positive three-digit integer that is four times the product of its digits?
50. ### math

Find the principle root (-64)1/6. Express the result in the form a+bi. (2i)^6= -64 = (-64)1/6= 0+2i I got it wrong, please help.
52. ### Math

Calculate the distance between the points -2/3 and 3/4 on the number line. Please show how you come to the answer.
53. ### math

Find all the zeros of the function. t^3 - 3t^2 - 15t + 125 Please explain. I am very confused on how to do this!!
54. ### Math

use the properties of logarithms to simplify the logarithmic expression. log10 (9/300) Please explain!!
55. ### Math

Can someone please explain this question? What would be a brief scenario of a continuous probability distribution? Thanks for your help.
56. ### math

Find the first and third quartiles, Q1 and Q3, of the following set of numbers. 13, 5, 12, 16, 7, 14, 7, 3, 10, 7 i don't know how to figure it out can you help please. thanks
57. ### math

I am changing measurement to the given unit. I need to change 14m to kilometers what is the answer?help please
58. ### math

Rewrite the equation so that y is a function of x: 1. 1/2(y+5)+4x=3x 2. Use the result in Ex. 1 to find y when x= -1, 0, and 2 __________ Can you please check if this is right? 1. y=-2x+4.5 2. f(-1)=-2(-1)+4.5 =6.5 f(0)=-2(0)+4.5 =4.5 f(2)=-2(2)+4.5 =0.5 Thanks!

60. ### Math

I have a real big problem. I am not suitable for Algebra! So, could someone please explain how 5x=54+7 equals 4 o.O

Find the midpoint of the line segment having the given endpoints. ( 2, 6) and ( 7, 3) M 9/2,9/2
62. ### Math

I am having trouble finding a pattern or linear equation for this table x y 1 -1 3 3 5 7 10 ? 50 ? 100 ? Could someone help me please?
63. ### math

operations on functions: Given f(x) = 2root x+7 and g(x) = 5x^2 – 9, evaluate (f/g)(2) . I don't understand how to do this, can someone please explain the process??!! thanks!
64. ### math HELP SOON!

Write each ratio as a unit rate. 6 eggs for 4 people. "Please help, it is very confusing to me."

66. ### math

0.3x-0.2y=4 0.5x+0.3y=-7/17 Can anyone Please help me solve using the elimination system..... Someone tried to explain it but I still do not get it at all

68. ### math

name the transformation that turns a figure around a point please help asap it is due tomrrow
69. ### math

I've to solve 3x^2 + 6x +3 =0 by factoring. Thus, after solving I got the answer as 3(x + 1)^2. Please correct me if I'm wrong.
70. ### MATH/OPTICS

Use the properties of lines to parallel solve the problem. If p ðF q and mÚ8 = 52‹, what are the measures of the other angles?
72. ### math

How would you simplify this rational expression: Can you please show me the steps on how you get the answer thank you. 2y+1 over y-2 times (4-2y)
73. ### Math

What is the relationship of the two lines with the equations -3y=x-6 and y=3x+1? I am very confused. Please explain how you got your answer!

Factor completely 3p^2q + 9p^2q^2 - 12p^2q^3 I have done the following: 3p^2q(1+3q-4q^) but then i get stuck..not sure if that's the final answer..

Solve using elimination.......answers must be in ordered pair form 0.3x-0.2y=4 0.4x+0.5y=-55/17
76. ### Math

Please I need to solve this problem Use the elimination method 0.3x -0.2y=4 0.5x + 0.3y=1 Plesae help I am competely lost!!!

Why is the best- the mean or median- to use when planning a trip? Why? HELP PLEASE! I'M STUCK!
78. ### math

can you answer this as soon as possible please just find the lcd of this rational algebraic expression 3x/x-4,2x/x+4
79. ### Math

An experiment has three possible outcomes: A,B, and, C. If P(A)=P(B) and P(C)=2P(A)what is the probability of each event? Hint: We know that in this case, P(A)+ P(B)+P(C)=1; therefore,P(A)+P(A)+2P(A)=1 Please Help :)
80. ### Math

I don't understand how to solve equations with logarithms very well...can you help please? here is one im stuck on: log (3r+5)= 5 2 Thanks!!
81. ### Math

how would you simplify log10^x3 ? i tried the examples from the book, but it just confuses me. someone please help.

When comparing two independent population means, how do I find the degree of freedoms?
83. ### math

if an equilateral triangle has a perimeter of 24 inches, what is the length of each side and please explain why because i don't really understand this! help!
84. ### Math

simifly. Use the commutative associative and distributive properties. 1. 175 + 37 + 25 2. 50(11 x 2) 3. 12/(99 can someone explain to me how to do these please?
85. ### Math

Solve by using the multiplication principle -2x> 1 over 9 I have tried this problem and can get no where with it can someone please help me????
86. ### MATH I NEED HELP PLEASE!

DETERMINE THE SUM OF THE FOLLOWING GEOMETRIC SERIES A. -1/32+1/16-...+256 B. 50 over Σ 8(.5)^n-2 where n=1
87. ### math i need help please

determine sums of following geometric sequences... A. -1/32+1/16-...+256 B. 50 over Σ 8(.5)^n-2 where n=1
88. ### math

write the following in a sigma notation 3/32+3/16+3/8+...+12288 so far ive gotten that a=3/32 and r=2/1 can you please help me further
89. ### pre-algebra-math

Find the derivative of f(x)=1/3 sqrt x. The 3 is little above the square root. I know that it is -1/3x^-4/3. Can this be written as -1/3x^4/3 ?

92. ### Math

Principal is \$1,800. Rate is 10%. Simple Interest is \$360. What's the time? Please show how you go to this answer.
93. ### math

Could someone please describe two main differences between classical and empirical probabilities.
94. ### math

HELP ME PLEASE!!!!! Convert to an improper fraction. Type in your answer with the negative in the numerator. -11 1/3= I have NO clue how to do this!?
95. ### math

I don't understand the rules for adding and subtracting postive and negative ,can you please explain it to me? im having a test
96. ### math

a circular coin has radius of 8.2 what is the circumference rounded to the nearest tenth? please show work
97. ### math algebra..help please urgent! due in 20mins

how to divide and simplify 12x^3-22x^2-44x-16/6x+4