188,810 results, page 2

4. ### Math

Find k so that x+2 is a factor of 2x^3-2kx^2-11x+5k. I don't know to solve for k. please help and thank you

9 + x = 17 I know that x=8 but I don't know how you figure it out

What is the scientific notation of 95? Please give a simple explanation! Thanks :)
8. ### MATH- Algebra 2

[1/3,1/2] Can you please please graph this in interval notation!! Thank you so much!

Find the coordinates by solving and graphing the equation : -x^2-x+30=0

1. 2(3x + 5) = 46 4 5 6 7 2. 1/2x + 1/4x = 16 16 21.3 32 64 3. 6 - x - x = 18 -6 6 9 -9 4. 4x - 3/5 = 2/5 1/5 5/5 1/2 1/4 My answers: 1. 6 2. 21.3 3. ???? 4. 1/4 I have no idea how to solve 3! Can you please explain? Thank you

13. ### math

Can someone please explain the Pythagorean Theorem to me?! I seriously don't get it.
15. ### Math

Order the rational numbers from least to greatest: 0.42, - 1/2, 11/20, - 0.51. - 0.51, 0.42, - 1/2, 11/20 - 0.51, - 1/2, 0.42,11/20 - 1/2, - 0.51, 0.42,11/20 - 1/2, - 0.51, 11/20, 0.42 PLEASE HELP

18. ### Math

Determine which ordered pair is a solution of y = 2x - 3 A. (-2, 7) B. (0, 3) C. (-4, -11) D. (5, -7)*** Please help!

Hi, I need help because I'm really stuck on this math word. Can someone please define what rational coordinates means what? I really need help fast because this project is due today! Thank You :)
21. ### math

a tank was 10 percent full and contained 30l of water what is the full capacity of the tank please dear lectures it is not my homework i am poor in math and tommorow is my test if i could please get the work now

Can you help me with my new math homework? Regroup each mixed number by regrouping a 1 from the whole number. 1 1/4. 8 5/12. 4 5/9. 2 1/3 Can you please explain each one of this problem for me please step by step.thank you!

y+2/y=1/y-5 *Please solve the rational equation. Done the same way as the previous post.

Find the value of X in the equation 9(2x-18)=36 Please show your work thank you very much for your help

what is the probability of not throwing 7 or doubles for 6 consecutives throws with a pair of dice? help please?!?!!

Find the real solutions of each equation. 1) 1 / (x+6)^2 = 1 / (x+6) + 12 2) 8x^2/3 - 39x^1/3 - 5 = 0 I have no idea how to do these. Please help!!! Thank you!
27. ### math

please can you help me solve the following equations and please can you show your method. thanks 1) 4x+3/5x-6 = x-1/x-6 2) 4x-5/1-6x = x+10/x-6 thanks once again

Find a6 for an arithmetic sequence where a1=3x+1 and d=2x+6 . I can't even solve it because I do not have any idea.

32. ### math

Multiply 2/3 and 6/7 A. 4/7 B. 4/21 C. 12/21 D. 3/7 PLEASE HELP if you could please tell me all the answers for this mixed numbers practice if u know them
33. ### Math

Can the numbers 24, 32, 40 be the lengths of the three sides of a right triangle? Please explain why or why not thank you.

Out of 42 kids in a class twice as many failed Ela as math,4 failed both. If 7 failed neither, find how many failed each subject. Please help and show work it would be great thanks i really need help thanks
36. ### math

2. suppose a point at (2,3) is translated to (7,-1). which rule describes this translation? a) translate right 5, down 4 b) translate left 5, up 4 c) translate right 9, down 2 d) translate left 9, up 2 3. if the point (-5, -8) is reflected over the y-axis, what are the ...

(-3)^3-(-8)(-2)= -3 to the 3 power is -27 subtract -27 - -8 = -19 multiply by -2 =38 is this right please help (-3)^3-(-8)(-2) Use BODMAS rule So the answer is (-3)^3-16 ==>-27-16 =-43

39. ### math

PLEASE EXPLAIN HOW I CAN SOLVE MIXED NUMBERS PLEASE GIVE ME A EXAMPLE FOR PARTS THAT ARE SHADED THANKS
40. ### Math -please check me

what is the perimeter of a rectangle if the length is 5/9 cm and the width is 2/9 cm? a. 5/9 cm b. 1 5/9cm c. 7/9 cm d. 1 7/9 cm the answer I got was 14/9 please help me.
41. ### math

Please help me answer this.. Suppose that 2^(x/2)= p 3^(x/3-1)= q [5^(x/2)]/3 = r Express (0.48)^x in terms of p, q and/ or r. this question came from our reviewer.. please and thank you!
42. ### Math

I SERIOUSLY need help! Solve the linear system by using substitution. x=6-4y 2x-3y=1 Explanation too, please! Please and thanks!

x+y=0 3x+y=-4 Sovle each system of equation by graphing. If got the answer (-3,3), but it's not there. Please explain!

45. ### math

12. What is the distance between P(–4, 3) and Q(6, 1)? Round to the nearest tenth. can someone please explain how to do this problem please
46. ### math

12. What is the distance between P(–4, 3) and Q(6, 1)? Round to the nearest tenth. can someone please explain how to do this problem please
47. ### math-precalculus

help me please.. and please provide steps so I can follow. sec(2ϴ)=3... solve for all solutions on [0,2π]

someone please show how to do Simplify, if possible: 6x^2y^3+9x^2y^3/3x^2y^2
49. ### math

solve for x 3x^2 + 2x - 5 = 0 you foil it and get: (x - 1)(3x + 5) but i don't know what to do from here. please please pleasee help.

51. ### Math

Can u please guide me on solving these two equations please. Thank You 3.6-7.6 (-8.3)-11.4

54. ### Math

What is 14% of 120?? PLEASE SHOW ALL WORK, THANK YOU!!!

57. ### Math

1- x/x-5+7x/x^2-3x-10 Please simplfy and show all work thank you
60. ### math

By what percentage is 1/40 greater than 1/50? #Please guys help me please this question.#
61. ### Need Math Help Please

in probability why are tree diagrams more useful than to use tables ?? please explain to me in a paragraph so i understand completely and could you please show me an example where i would have to use the tree diagram, and why i couldn't use a table???
62. ### math

1) Write a translation rule that maps point D(7, –3) onto point D'(2, 5). 2) Triangle ABC has coordinates A(1, 4); B(3, –2); and C(4, 2). Find the coordinates of the image A'B'C' after a reflection over the x-axis. Note: PLEASE ANSWER NICE AND NEAT AND CORRECT PLEASE AND ...

69. ### Math

Please Simplify: (root5 a^7/2)^4 a^3/a^8 I am having a hard time figuring where to start on this problem. Can someone please help me?
70. ### math

can someone please check my answer for me? thanks in advance 9(x+4)=3(3x+2)+30 I got x=8 is this correct if not could you please tell me where I missed the step at?
71. ### math

Find f'(a) for f(x)=4x3+1x f'(a) =? please please help. i just need to figure out how to do it once and then i can do the rest of my problems
72. ### Math

Can someone please check this for mistakes please? y=4(x+3)-2x y=4x+3-2x y=2x+3 2x+3=y 2x=y-3 x=y/2-3 Hopefully I have rearranged the formula y=4(x+3)-2x to express x in terms of y.
73. ### math

please is there anybody who can help me to do my assignment about sums and differences of a rational algebraic expression this is the problem.... x^2/x-y - y^2/x-y=? another is 3y/3y-5 - 5/3y-5=? another is 10/x-3 - 2x+9/x-3 + 5x-7/x-3 please answer it.......
74. ### MATH HELP ME NOW 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 HELP PLEASE!!!!!!
75. ### Math -Urgent!!!

List all the possible rational zeros of f(x)=3x^3-x^2+2x=2. Please help me. I don't understand how to do this. Can someone show me please.

Find the height of an equilateral triangle with sides of length 6 cm ' please show ur work
77. ### Math

help please anyone? i'm having a hard time solvig these problems LOGIC CONDITIONAL PROOF. HOMEWORK HELP PLEASE!? A. 1. A -> (B -> C) 2. (C ^ D) -> E 3. -F ->(D ^ -E) / :. A -> (B -> F) B. 1. (A v B) -> -(C ^ D) 2. (-C v -D) -> (E <-> F) 3. (E <...

how to find slope of a graph without points please make it as simple as possible
79. ### Math (immediate help, please)

Find the area of a regular pentagon with a side 8 centimeters. Please provide an explanation!

Question: a garden snail moves 1/6 foot in 1/3 hour. This is unit rates. Please help, I don't get this lesson!
81. ### math

Need help with an algebra question please im trying to.help my son with homework but its been a long time..please!!!
82. ### Math

I need to find what the total commission of 14% on a \$3000 sale. Can u please show in detail how to solve this. Please and thank u. :)

S is the midpoint of RT. Which of the following completes the statement? ST = 38 ft; RT = ? A)38 ft B)19 ft C)76 ft D)96 ft I'm not sure how to find the correct answer, can someone please help?
85. ### MATH

Harriet needs to ship a small vase. The box she will use has a volume of 216 cubic inches. If the side lengths are all the same, what is the length of each side of the box? Hint: V = S^3 PLEASE ANSWER NICE AND NEAT AND CORRECT PLEASE AND THANK YOU!! =) :-) AND EXPLAIN IT GOOD...
86. ### math

Saying that 4<(sq.root of x)<9 is equivalent to saying what about x ? a. 0<x<5 b. 0<x<65 c. 2<x<3 d. 4<x<9 e. 16<x<81 Please help. Does this problem relate to 'x'values on the xy coordinate system ? If so please explain the concept here. If ...

10.a)Solve the inequality x^3-5x^2+2x+8<0 by i) using intervals ii) considering all cases I did this but my teacher said that when i solved this: x^3-5x^2+2x+8<0 (x+1)(x^2-6x+8) (x+1)(x-4)(x-2)<0 She told me to show all the steps, but i don't know how to show more. so...

89. ### math

Please help me. Thank you! I need help freshing my memory. How do you calculate the slope of a horizontal and a verticle line? I remember how to do a diagonal but that's it. Please and thank you.
90. ### math

I have 2 problems that I need solved. Can someone please help me? t+36t=0 second problem T^2-7t+12=0 Can you show me the steps please?

y=1/4x-1 1/2y=x-2 2x+3y=3 3y=5-2x 4x-y=3 4x=y=1 I don't understand this can someone please help me! This is Systems of Equations please work out the problem and explain it how to do it.
92. ### Math

Evaluate the integral from 0 to 4 of (x+1)/(16+x^2) dx the answers are log(sqrt2) + pi/16 Could you please take me through how to get to that answer please, thank you very much!

How does increasing the size of an object affect it's volume to surface area ratio? I don't understand please explain it?