# please help, step by step having difficulty here as well. Find the term containing x5 in the expansion of (x + 2y)^10

105,139 results

Related Rates: Gas is escaping from a spherical balloon at the rate of 2ft^3/min. How fast is the surface area shrinking (ds/dt) when the radius is 12ft? (A sphere of radius r has volume v=4/3 pi r^3 and surface area S=4pi r^2.) Remember that ds/dt = ds/dr

2. ## Math

April rewrote a quadratic function in vertex form. h(x)=5^2-30x+30 step 1 h(x)=5(x^2-6x+ )+30 step 2 h(x)=5(x^2-6x+9)+30-45 step 3 h(x)= 5(x-3)^2+15 In which step did they make a mistake? and how? Please help

3. ## Chemistry

If 8.5g of pure ammonium phosphate , (NH4)3PO4(s), is dissolved in distilled water to make 400mL of solution, what are the concentrations (in moles per litre) of ions in the solution. How would I solve this type of stoichiometric problem. I know the steps

4. ## chemistry

What is the percent ionization of a 1.38 mol/L weak acid if its Ka = 2.7 x 10-6? Answer to two (2) decimal places. I know what steps to use but have difficulty applying them to the quesiton Can someone please complete the question for me since there are

5. ## Math

1. How many triangles will there be in the 7th term of the following sequence? (1 triangle, 4 triangles, 7 triangles, etc.) A. 19*** B. 22 C. 16 D. 8 2. Rachel is placing playing cards on a table by following these steps. Step 1: First she places one card

6. ## Math

From a point x = 110 feet in front of a public library, the angles of elevation to the base of the flagpole and the top of the flagpole are θ = 27.5° and 39° 45', respectively. The flagpole is mounted on the front of the library's roof. Find the height

7. ## math

Consider the sequence of steps to solve the equation: 2(x − 4) + 6x = 9x − 10 Which step in solving this equation is justified by the Commutative Property of Addition? Given ⇒ 2(x − 4) + 6x = 9x − 10 Step 1 ⇒ 2x − 8 + 6x = 9x − 10 Step 2

8. ## MATH

Find the vector v with the given magnitude and the same direction as u. Magnitude: ||v|| = 8 Direction: u = ‹6, -6› STEP 1: Find the magnitude of u. STEP 2: Use your result from Step 1 to compute a unit vector, u1, in the same direction as u. u1= For

9. ## math

10a) Simplify the expression and explain each step. 12 + 3(2y – 3) Step 1: apply distributive property Step 2: combine like terms Step 3: simplify b) Factor the expression completely. 18b – 12 What is the GCF of 18 and 12? Use ladder method or listing.

10. ## Math

when z is divided by 8, the remainder is 5. What is the remainder when 4z is divided by 8. Can you please explain this to me step by step? I'm having difficulty understanding why the answer is 4

11. ## math

Consider the sequence of steps to solve the equation: 5(x - 3) = 7x 2 Step 1 ⇒ 10(x - 3) = 7x Step 2 ⇒ 10x - 30 = 7x Step 3 ⇒ 3x - 30 = 0 Step 4 ⇒ 3x = 30 Step 5 ⇒ x = 10 Identify the property of equality which yields Step 5. I'm thinking

12. ## math

An equation and the steps to solve it are shown below: 3x − one over two (8x − 2) = 4 Step 1: 3x − 4x + 1 = 4 Step 2: x + 1 = 4 Step 3: x + 1 − 1 = 4 − 1 Step 4: x = 3 Which step was the error made and why? Step 1, because incorrect signs have

13. ## math

Tom is showing his work in simplifying (5.2 – 8.5) – 0.5 + 6.8. In which step did Tom make an error? Step 1:: (5.2 – 8.5) – 0.5 + 6.8 Step 2: 5.2 + (–8.5 – 0.5) + 6.8 (distributive property) Step 3: 5.2 – 9 + 6.8 Step 4: 5.2 + 6.8 – 9

14. ## chemistry

1)Thallium (I) is oxidized by cerium (IV) as follows: Tl+ + 2 Ce+4  Tl+3 + 2 Ce+3 The elementary steps, in the presence of Mn(II), are as follows: Step 1 Ce+4 + Mn+2 --- Ce+3 + Mn+ Step 2 Ce+4 + Mn+3 ---- Ce+3 + Mn+4 Step 3 Tl+ + Mn+4 ----- Tl+3 + Mn+2

15. ## CHEM

The decomposition of nitrogen dioxide 2NO2-->2NO+O2 occurs in a two-step sequence at elevated tempatures. the first step lis NO2--> NO+O. predict a possible second step that, when combined with the first step, gives the complete reaction

16. ## Chemistry

I am working on a five-part question and I just need help with the last part. I'm not sure where to begin with that one. I pasted the question and answers (for a-d) to the other parts below. Thank you! Consider the proposed mechanism for the reaction

17. ## Quick math help

In which step below does a mistake first appear in simplifying the expression? 0.5(-12c+6)-3(c+4)+10(c-5) Step 1: -6c+3-3(c+4)+10(c-5) Step 2: -6c+3-3c-12+10(c-5) Step 3: -6c+3-3c-12+10c-50 Step 4: 7c-41 Please help me!!! Thank you!!

18. ## Help PLZ!!

consider the steps to simplify the expression. Which property is used to reach Step 3? Expression: -4 3 7 + 7 + (-3 4 7 ) Step 1: = -4 3 7 + (-3 4 7 ) + 7 Step 2: = -4 + (- 3 7 ) + (-3) + (- 4 7 ) + 7 Step 3: = -4 + (- 3 7 ) + (- 4 7 ) + (-3) + 7 Step 4: =

19. ## Calculus

Use the four-step process to find the slope of the tangent line to the graph of the given function at any point. f(x) = 16 - 10 x Step 2: f(x + h) - f(x) = Step 4: f'(x) = lim(h->0)(f(x + h)- f(x))/h =

20. ## Math

Find the value of the following expression: (2^8 x 5^-5 x 19^0)^-2 x (5^-2/ 2^3)^4 x 2^28 I tried to do a couple steps to solve the question but I don't know if its right. Step 1:(2^8 x 5^-5 x 19^0)^-2 x (5^-2/ 2^3)^4 x 2^28 Step 2: (2^-16 x 5^-10) x

21. ## math

Omar wanted to know if x−5 is a factor of the polynomial p(x)=x3−6x2−x+30. He applied the Factor Theorem and concluded that x−5 is a factor of p(x), as shown in the following work. Step 1: p(5)=53−6(52)−5+30 Step 2: p(5)=125−150−5+30=0 Step

22. ## Algebra help

f(x)=x^3-4x^2-x+4 How do I find the x-intercept for this? This is from my book: step 1: 0=x^3-4x^2-x+4 step 2: 0=x^2(x-4)+(-1)(x-4) step 3: 0=(x^2-1)(x-4) I know how to solve once I get to step 3, but in step 2, I don't know what they've done or why. Where

23. ## math

the work of a student to find the dimensions of a rectangle of area 6 + 8x and with 2 is shown below: Step 1 6 + 8x Step 2 2(4) + 2(6x) Step 3 2(4+6x) Step 4 Dimensions of the rectangle are 2 and 4 + 6x In which step did the student first make an error and

24. ## Algebra

How do I solve for the elimination method: 5x + 3y= -7 and 7x - 2y =13 (step 1); 10x + 6y =-14 and 21x -6y = 39 ( step 2), 31x/31= 25/31, x= 25/31 (step 4). But after that I get lost. Can somebody help me out please.

25. ## Graph Theory/ Algorithms / Computer science

I am working on this problem from the book, Data Structures & Algorithm Analysis in C++. The problem is: 9.40 Give a polynomial-time algorithm that ﬁnds ceil(V /2) vertices that collectively cover at least three-fourths (3/4) of the edges in an arbitrary

26. ## Algebra

Josephine solved a quadratic equation: (x+6)^2=49. Her work is shown below. Step 1: √(x+6)^2 = √49 Step 2: x+6 = 7 Step 3: x = 7−6 Step 4: x = 1 In which step did Josephine make an error? A- step 4 B- step 1 C- step 2 D- step 3

27. ## Physics

An arrow is shot straight up from the edge of a cliff with an initial velocity of 50 ft/s. Answer the following questions using English units. The acceleration due to gravity has a magnitude of 32.2 ft/s. A. Find the time to reach the highest point.

28. ## Maths

Differentiate y=(5x-2)^3(3-x)^6 using the product rule. i don't get the step where they find the common factor could you help me by doing it step by step please ? thank you!

29. ## Chemistry

If 8.5g of pure ammonium phosphate , (NH4)3PO4(s), is dissolved in distilled water to make 400mL of solution, what are the concentrations (in moles per litre) of ions in the solution. How would I solve this type of stoichiometric problem. I know the steps

30. ## Calculus

Let f(x) = sqrt(3x+15) Find f'(x) The answer is 3/(2sqrt(3x+15) Can anyone who does this please explain step by step why you did what you did? I have a lot of difficulty finding the derivative with radicals.

31. ## Vectors

Can someone start me off on these and please explain step by step how you got everything because I'm having difficulty understanding the entire concept. Find the projection of u onto v and calculate its magnitude. a) u = (2,5) v = (6,4) b) u = (3, 6, -2) v

32. ## physics

A 755 N man stands in the middle of a frozen pond of radius 9.0 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 1.2 kg physics textbook horizontally toward the

33. ## Physics

Water flows through a garden hose that goes up a step 20.0 cm high. The cross sectional area of the hose on top of the step is half that at the bottom of the step. If the water pressure is 143 kPa at the bottom of the step, and the speed of the water at

34. ## precalculus

Which of the following would be the best first step when solving the following system using the substitution method? • x - y = -4 ; • x + 2y = 5 x = -4 - y x = -4 + y 2y = 5 - x 2y = 5 + x I have solved the equation but I am unsure which is the best

35. ## Algebra

Debbie finished her algebra test early so she decided to check each of her answers. After checking her answer to question #10, she realized she made a mistake in her solution. In which step does Debbie make her mistake? Original Equation: 2 + 3y = 5(y - 2)

36. ## english!

Make sure you understand the topic(s) is a step in the research process. (A) This step needs to be done as soon as your research is completed. (B) This step is the last step in the research process. (C) Always ensure you grasp the topic before you go to

37. ## MATH

Hannah is showing her work in simplifying (6.1 − 4.5) − 2.5 + 3.9. Identify any error in her work or reasoning. Step 1: (6.1 − 4.5) − 2.5 + 3.9 Step 2: 6.1 + (− 4.5 − 2.5) + 3.9 (associative property) Step 3: 6.1 − 7 + 3.9 Step 4: 6.1 + 3.9

Can anybody tell me step wise step how to solve this quadratic equation? x^3-3x^2+4=0 Please tell me step wise step as i haven't solved such type of equations before. Thank You

39. ## Physics - Bernouli

Water flows with constant speed through a garden hose that goes up a step 20.0 cm high. 1. If the water pressure is 143 kPa at the bottom of the step, what is its pressure at the top of the step? Now suppose the cross sectional area of the hose at the top

40. ## Trig - sum and difference formulas

Write the expression as a single trigonometric functions: cos 6x cosx - sin6x sin x if you could do it step by step? also... How do I prove that sin(90deg + theta) = cos(theta)?? also step by step so i may learn?

41. ## ALGEBRA HELP

When solving the equation, what property was used to go from step 3 to step 4? Step 1: -(2x+3= x-18 Step 2: -2x-3=x-18 Step 3: -3=3x-18 Step 4: 15=3x A)APOE B)SPOE C)MPOE D)DPOE

42. ## Math

I need help solving the problem not the answer. (Multiple Choice) The steps below show the incomplete solution to find the value of x for the equation 7x + 8 − 3x = −6 + 10: Step 1: 7x + 8 − 3x = −6 + 10 Step 2: 7x + 8 − 3x = 4 Step 3: 4x + 8 = 4

43. ## Geometry

A parabola has a focus of F(2,8.5) and a directrix of y=9.5. The point P(x,y) represents any point on the parabola, while D(x,9.5) represents any point on the directrix. Maria was asked to use the distance formula to write an equation to represent this

44. ## math

An equation and the steps to solve it are shown below: 3x − one over two (8x − 2) = 4 Step 1: 3x − 4x + 1 = 4 Step 2: x + 1 = 4 Step 3: x + 1 − 1 = 4 − 1 Step 4: x = 3 Which step was the error made and why? Step 1, because incorrect signs have

45. ## Math

In which step is the error? Step 1: Let x = 1 and y = 1. Step 2: By substitution xy = y^2. Step 3: Multiplying both sides by -1, -xy= -y^2. Step 4: Adding x^2 to both sides, x^2-xy=x^2-y^2. Step 5: Factoring, x(x-y)=(x+y)(x-y). Step 6: Dividing both sides

46. ## Information Literacy

Please check my answer thank you. 1. Mary is documenting her sources. Which step of the research process is she on ? A. Step 3: Evaluating your sources B Step 5: Cite your sources X C. Step 4: Organize your information D. Step 2: Find and Retrive Materials

1. What is the value of b in the equation b + 8 = 13? A. 5**** B. 8 C. 13 D. 21 2. The steps below show the incomplete solution to find the value of x for the equation 7x − 3x − 4 = −1 + 21: Step 1: 7x − 3x − 4 = −1 + 21 Step 2: 7x − 3x − 4

48. ## Physics

Can someone please show me step by step how to normalize e^-5x in the interval (0, infinity)? I have read a lot of different books etc but need it explained to me in plain English or showed to me step by step because I am just not getting it. Thank you

49. ## music

quiz name: step ladder 1. click the play button to listen to the audio samples. how would you define the step between the notes in this clip? a. half step b. whole step c. same pitch d. leap across many steps

50. ## math/algebra

solve each of the following systems by substitution. 16) 5x -2y = -5 y - 5x = 3 20) 8x -4y = 16 y = 2x - 4 28) 4x -12y = 5 -x + 3y = -1 Step one: Solve on of the equations for one of the variables. y=2x-4 Step two:Substitute the expression for the variable

51. ## Math

Can you please go step by step, Ill show what I did and you can correct me. The question is: a+a(x+1) My way: a+a(x+1) 2a(x+1) 2ax+2a Could someone please check over this and provide a correct answer and my error. Thanks in advance. a+a(x+1) does not equal

52. ## math

My problem I have involves a method that requires using the quadratic equations that comes from India. Here the problem that I have to solve : x to the second power plus 12x minus 64 equals 0 I need someone to walk me through each step to arrived to the

53. ## Algebra1

I am solving for linear equations and I'm wondering if I did Step 3 right.. 3x-y=8 x-y=8 Step 1 3x-y=8 3x-y+y=8+y 3x=8+y 3x/3=8+y/3 x=(8+y/3) Step 2 3(8+y/3)-y=8 8+y-y=8 8+2y=8 8+2y-8=8-8 2y=0 2y/2=0/2 y=0 Step 3 x=8+y(0)/3 x=2.6

54. ## Calc 2

Can you give me the step by step instructions on how to do this problem? I'm having difficulty understanding Riemann Sum. Let f(x) = 2/x a. Compute the Riemann sum for R4 using 4 subintervals and right endpoints for the function on the interval [1,5]. b.

55. ## math

Is the function a polynomial function? Why or why not? If it is a polynomial function identify and label the leading term and constant term. Here are the functions f(x)=(2-x^4)/13 f(x)=x^3+9x-(1/x) it would be great if you could do everything step by step

56. ## math

1: Connor drives an an eighteen-wheeler. It cost Conner \$456 to fill the truck up with diesel fuel. If diesel fuel cost \$3 a gallon, how many gallons of fuel were bought? a: 148 b: 152 c:156 d:164 2: The temperature started at 35°F. If the temperature

57. ## chemistry

Consider the following problem: Target: 2NOCl (g) ¡æ N2 (g) + O2 (g) + Cl2 (g) ¥ÄHrxn= ? Steps: 1. ¨ö N2(g) + ¨ö O2(g) ¡æ NO(g) ¥ÄH= 90.3 kJ 2. NO(g) + ¨ö Cl2(g) ¡æ NOCl(g) ¥Ä H= -38.6 kJ As you determine the ¥ÄHrxn value for the target

58. ## Pre-calculus.

Wesley and Delia are playing a math game. Wesley gives Delia these step to follow. Step 1: Multiply a number by 6 and then subtract by 4. Step 2: Divide the result by 2 Step 3: Add 3 to the result from the second step. If Delia's final answer is 19, What

59. ## Math

Tom is showing his work in simplifying (5.2 – 8.5) – 0.5 + 6.8. In which step did Tom make an error? Step 1:: (5.2 – 8.5) – 0.5 + 6.8 Step 2: 5.2 + (–8.5 – 0.5) + 6.8 (distributive property) Step 3: 5.2 – 9 + 6.8 Step 4: 5.2 + 6.8 – 9

60. ## Math

Step 1 = 3 boxes Step 2 = 6 boxes Step 3 = 11 boxes Step 4 = 18 boxes How many boxes at step 50? Which one? 100, 102, 2500, 2502 How would I solve this?

61. ## math

please - How do we manually calculate the Present Value of annuity step by step using this formula: PV=R[1-(1+i)-n / i for example: PV = 2700[1-(1+.065)-4 ___________________ = 9249.66 0.065 How did they get this answer (9249.66)? I'm so lost. just to

62. ## Chemistry (Making sure

For how many kilojoules are required to change 44.0g of ice at -12.0 degrees C to water at 85.0 degrees C? Would this be correct: Step 1: (2.10 J/g degrees C)(44g)(12 degrees C) = 1108.8J = 1.1088kJ Step 2: (44g)(1mol/18g)(6.01kJ/mol)= 14.6911kJ Step 3:

63. ## pre-cal

please help, step by step having difficulty here as well. Find the term containing x5 in the expansion of (x + 2y)^10

64. ## Math

William multiplied (-2x+1-3y)(-0.5x) and got the wrong solution. Review his work and identify the step in which William made his first error. Step 1 (-2x+1-3y)(-0.5x) Step 2 (-0.5x)(-2x-3y+1) Step 3 -0.5x(-2x)-0.5x(-3y)-0.5x(1) Step 4 x^2+1.5xy-x I think

65. ## Chemistry

In a chain mechanism, a reaction in which two free radicals combine to form a stable molecule would be called the A) initiation step B) termination step C) propagation step D) inhibition step E) branching step

66. ## Algebra

I need help step by step please I keep getting a wrong answer of 252? Find the 24th term in the expansion of (a + b)^ 25

67. ## Algebra

I need help step by step please I keep getting a wrong answer of 252? Find the 24th term in the expansion of (a + b)^ 25

68. ## aps

There are 26 step on flpor at the time saad comes down two step imad step up one step When will tyey meet at what step?

69. ## math,help

Can someone show me how step by step how to solve this problem... Rewrite the middle term as the sum of two terms and then factor by grouping. x^2-2x-63 step 1. Find two factors which when multiplied will give you -63 and when added will give you -2 how

70. ## math

Can someone start me off on these and please explain step by step how you got everything because I'm having difficulty understanding the entire concept. Find the projection of u onto v and calculate its magnitude. a) u = (2,5) v = (6,4) b) u = (3, 6, -2) v

71. ## algebra

write a function rule for the table. y= x -10, -7, -2, 6, 10 y -25, -19, -9, 7, 15 Can someone please show me step by step how to work this problem out step by step, I am so confused.

72. ## geometry

The figure shows some of the steps Jane took to draw a line segment parallel to line segment XY at R. Jane plans to perform these steps next. Step 1. Set the compass at point S and adjust its width to point T Step 2. Fix the compass at point L. Step 3.

73. ## Rate determining step

I don't understand how to get a rate determining step. I have an energy diagram for a two-step conversion where the first step Ea is about 18 units. The energy then goes down about 4 units and rises again about 10 units to the peak of the second step. Why

74. ## absloute values

A partial solution to I1-xI-3 =- 1 is shown below. Step A I1-xI-3 =- 1 Step B I1-xI = 2 Step C 1+x=2 or -1+x=2 Step D x=3 or x-1 Where was the first mistake made if there is one?

75. ## Calculus--complex numbers

let z= a+bi be a complex number. it is given that the quotient (z-i)/(z-1) is purely imaginary. show that z lies on a circle and determine the centre and radius of this circle. OK, here's my working out...( i am using "X" as my times symbol) step1:

76. ## algebra 1

ELEMENTARY ALGEBRA #3 Page 23 Chapter 3 Lesson 3.02 Solving Multi-step Equations Reading Assignment: Study pages 126 – 129 Written Assignment: There are five steps to solve Multi-Step equations, Match them in their proper order. Step 1 Undo

77. ## Chemistry

Consider the following problem: Target: 2NOCl(g) ? N2(g)+ O2(g)+Cl2 (g) ?Hrxn= ? Steps: 1. 1/2 N2(g) + 1/2 O2(g)? NO(g) ?H= 90.3 kJ 2. NO(g) + 1/2 Cl2(g) ? NOCl(g) ?H= -38.6 kJ As you determine the ¥ÄHrxn value for the target equation above, what must be

78. ## Chemistry Urgent

Consider the following problem: Target: 2NOCl(g) ? N2(g)+ O2(g)+Cl2 (g) ?Hrxn= ? Steps: 1. 1/2 N2(g) + 1/2 O2(g)? NO(g) ?H= 90.3 kJ 2. NO(g) + 1/2 Cl2(g) ? NOCl(g) ?H= -38.6 kJ As you determine the ¥ÄHrxn value for the target equation above, what must be

79. ## Math

I am currently doing a question in which the equation is dN1/dt= -N1 + 0.1N1*N2 However, I am able to follow until the step of -N1(1 - 0.1N2) after that I'm not able to follow to the step of (-1)N1 (1-N2/10) Can someone please explain to me how we went

80. ## algerbra

solve the equation step by step list each step along with the property you used during that step -5*1*11*4

81. ## pre algebra

solve the equation step by step.list each step along with the property you used during that step. -5 x 1 x 11 x 4

82. ## Spanish for Liz & LJ Cutie

Thank you for using the Jiskha Homework Help Forum. If you post the title and publisher/author of your textbooks, often those publishes have Websites online to help students. My guess is "Level II" or Spanish II if object pronouns are causing you

83. ## Math - algebraish

hey how do we convert y=mx+b to standard form? the standard form of the equation of a straight line is usually considered to take this form Ax + By = C, where A,B, and C are integers and A is positive. So if your equation is in the slope-yintercept form

84. ## Chemistry

Hi! I need help with the step by step procedure for chemical equilibrium problems. Here is an example: Given two reactions: a. PbCl2 Pb^(2+) + 2Cl^(-) K = 1.76*10^(-10) b. AgCl Ag^(+) + Cl^(-) K = 1.11*10^(-4) What is the equilibrium constanct K(final) for

85. ## chem

ok my professor lost me when explaining this material so please bare with me and help me step by step one of the questions is: after absorbing 1850J of energy as heat, the temperature of a .500-kg block of copper is 37C what was its initial temperature

86. ## chemistry

Consider the following problem: Target: 2NOCl (g) ¡æ N2 (g) + O2 (g) + Cl2 (g) ¥ÄHrxn= ? Steps: 1. ¨ö N2(g) + ¨ö O2(g) ¡æ NO(g) ¥ÄH= 90.3 kJ 2. NO(g) + ¨ö Cl2(g) ¡æ NOCl(g) ¥Ä H= -38.6 kJ As you determine the ¥ÄHrxn value for the target

87. ## Chemistry

Consider the following problem: Target: 2NOCl (g) ¡æ N2 (g) + O2 (g) + Cl2 (g) ¥ÄHrxn= ? Steps: 1. ¨ö N2(g) + ¨ö O2(g) ¡æ NO(g) ¥ÄH= 90.3 kJ 2. NO(g) + ¨ö Cl2(g) ¡æ NOCl(g) ¥Ä H= -38.6 kJ As you determine the ¥ÄHrxn value for the target

88. ## Algerba

Solve for x. Round answers to the thousandths place. 3^x=17 5.667 2.579

89. ## MATH

A student is solving the equation 81x – 1 = 3x + 2. Step 1: 81x – 1 = 3x + 2 Step 2: (34)x – 1 = 3x + 2 Step 3: 34x – 4 = 3x + 2 Which is the next step? Possible answers 4x 4 = (x + 2) x 1 = x + 2 4x 4 = x + 2 4(x 1) = 3(x + 2)

90. ## precal

4=2cos(pi/6t-2pi/3)+4 How do i solve this step by step ith justification for each step? super frustratd thankyou

91. ## college

Trace the memory system from stimuli into long-term memory. Discuss the features of each step and factors that enhance or impede information flow in each step of the process.

92. ## Physics

A point (labelled P in the figure) is attached to the rim of a disk of radius 0.2 m, which can turn around an axis through its center. It is rotating counterclockwise with a speed of 2.5 m/s. Can someone please step me through the problem step by step?

93. ## math

Natasha has to determain the number of toothpicks in the 15th step, step one has four toothpicks step two has 12 toothpicks and step three has 24 toothpicks. She does not want to draw 15 pictures then count the toothpicks. Explain or show how she could do

94. ## Math

The area of one of the faces of the cube below is x^2+2x+1 cm^2. Find an expression in mixed radical form for the length of the interior design. My Work: Step 1: a^2 + b^2 = c^2 =(x-1)(x-1) x-1 equals to all the sides of the cube Step 2: a^2 + b^2 = c^2

95. ## biology

imagine that you go to a party with a friend who starts drinking achohol. describe, step by step, the effects to that individual as he or she drinks more and more alcohol as the evening progresses and the long term consequences that can result from alcohol

96. ## math

For each of the following expressions, show each step a student would folow to mentally perform the calculations in the whole numbers. For each step, identify the law, definition , axiom ec that was used to roduce that step. 125x 15x 3 x 8

97. ## Math/solving two-step equatios(distributive proper

Good morning! I am trying to help my nephew who because of seizures when he was younger has a hard time understanding math. I need step-by-step (written in words) on how to do two-step equations (distributive properties). 3(c+5)=12. 5(4d+8)=40. -(2k-11)=7.

98. ## arithmetic math

For each of the following expressions, show each step a student would folow to mentally perform the calculations in the whole numbers. For each step, identify the law, definition , axiom ec that was used to roduce that step. 345+641+255+359

99. ## proof by mathematical induction

subject is PreCalulus. 2^(k+3) = and < (k+3)! i know how to do proving using mathematical induction when its just an equal sign, but I don't understand what to do when its an inequality. thank you!!! Here is what I would do Step 1: check if it is true for

100. ## Physics

I'm trying to rearange this 0 = Xo + 2^-1 a t^2 for t I've been told that it is (a^-1 2x)^(2^-1) but I do not see how please show me step by step how you get that 0 - Xo = Xo - Xo + 2^-1 a t^2 (-Xo = 2^-1 a t^2) a^-1 2 (a^-1 (2-Xo) = t^2)^(2^-1) (a^-1 (2 -