# math..solve for u again

158,922 results, page 88

1. ### math

solve the simultaneous equations to find the coordinates of the point of intersection for the pair of lines of the simultaneous equations. Then check the answer by graphing the equations 3x-y=-4 2x-y=0
2. ### math

Karen's age is 7 years more than 9 times the age of her niece Emma.If the sum of their ages is 57,what is Emma's age?Make and solve an equation.

Solve for x: 2 to x+1=x+2 to 3 or 2 to x+3= x+2 to x+5 (the proportions end up being the same in the end) I keep getting to the part after you FOIL, and then I get stuck
4. ### Math

All the seats in the theater are divided into 8 groups.There are 40 seats in each group.Write and solve a division equation to find how many seats there are in the theater.
5. ### Math

The perimeter of a triangle is 50. The length of the sides of a smaller, similar triangle are 5, 6, and 9. FInd the sides of the larger triangle. What steps would I take to solve this?
6. ### Math

How do I set this up and how do I solve: The sum of two numbers is 20 The difference between 3 times the larger number and twice the smaller number is 40. What is the larger number?
7. ### math

j has a bag of 23 pieces of fruit the bag has 10 banana chips. what is the probability that j will choose a banana chip when he reaches into the bag? how to solve this problem
8. ### math

You have \$60.00 in your wallet and want to buy some new CDs. If the CDs are \$11.00 each, what number of CDs, x, can you buy? Write and solve an inequality. Then explain your answer
9. ### math

solve the problem A drug is injected into a patient and the concentration of the drug is monitored. The drug's concentration, C(t), in milligrams after t hours is modeled by C(t) = (7t)/2t^2+4.
10. ### Math

This is trigonometry: A tree's height is unknown so we have to solve for the height of the tree. The tree casts a 11m shadow. And the angle of the triangle is 36 degrees.
11. ### Math Help!

You have \$60.00 in your wallet and want to buy some new CDs. If the CDs are \$11.00 each, what number of CDs, x, can you buy? Write and solve an inequality. Then explain your answer
12. ### Math

the length of a rectangle is (x-3) inches long, and the width 3 2/5 inches. If the area is 15 3/10 square inches, write and solve an equation to find the length of the rectan
13. ### Algebra

I have a few questions I need help with! 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter. -3x+y-z=-4 6x-2y+2z=8 -12x+4y-4z=-16 2. Solve the system by ...
14. ### Peer review

How would you encourage a reluctant peer reviewer? Please tell us your ideas, and we'll be glad to add to them. my friend thinks that I spreaded a rumor and now she wants to be my friend again what should I do Trust is key in any friendship and without it you have nothing... ...
15. ### genetics (again)

i asked this question...when subcloning a gene and inserting it into a vector you normally would use x-gal to locate transformants if x-gal is not available what are the alternatives...and thankyou for the alternatives but i was wondering if there was any other process that ...
16. ### GRADE 12 PHYSICS AGAIN

it has been 2 hours, can't someone please help me? I need to know if what I did was right, I think it is wrong and one of the numbers is supposed to subtracted instead of added. 2.44(t+1)^2 = 2.44 (t^2-2t-1) d=2.44t^2-4.88t+2.44 & then 1.83t^2=2.44t^2-4.88t+2.44 0=0.61t^2-4.88...
17. ### Geometry

Hello thanks again. I gotten your advice previously and wanted to check to see if I did this problem correctly. Is this answer 1458 ft or the reverse of 189 ft? _________________ If the measures of two corresponding sides of two similiar solids are 3 meters and 5 meters, what ...
18. ### Physics

what does it mean to have a constant acceleration does that mean that a= 0 or a=x? I particularly need help with::::>> Suppose the pilot, starting again from rest, opens the throttle only partway. At a constant acceleration, the airboat then covers a distance of 64.2 ...
19. ### English

I'm sending you the first sentence again since I mispelt a word (grass must be glass). Thank you for your help.I hope in your prompt reply since I need it for tomorrow. As he intended to open the window (In an attempt to open it), he knocked his knuckles through the glass and ...
20. ### English - Native speakers

Hello once again! Can you tell me the difference between Don't underestimate me! and Don't underrate me! Which one is more used in English and what's the difference between those two words? Is there any other similar word? My second question. Can we say both I'm Croatian and I...
21. ### Algebra

A Car is moving at an average speed of 60 km/h. Find the algebraic expression for the kilometer it would travel in y minutes. Comment on this question: Hello, for me, algebra is one of the hardest subjects at school. Most of the time I read a question over and over again but I...
22. ### Englush

Hi again, I have another question for the novel 'in the heat of the night' for chapter three. Here it is , Give the significance of the following, 'That's what he's got a shirttail for.' 'Like I said, Virgil, we know our business down here. Go home.' if you know the answer to ...
23. ### Chemistry-@DrBob222

I apologize for having to bother you again,but I still can't post follow up questions and I can't find the reason.I even tried reinstalling the browsers,and still the same. Anyway you responded to my last post regarding H2 O2 fuel cell, "I agree". So did you mean that you ...
24. ### Algebra

2x + 1/2 = x/2 + 1/3 Subtract the x/2 from both sides to get 2x + 1/2 - x/2 = + 1/3 Now subtract 1/2 from both sides to get 2x + - x/2 = 1/3 - 1/2 Then combine terms on both sides and solve for x. Subtract the x/2 from both sides to get 2x + 1/2 - x/2 = + 1/3 Now subtract 1/2 ...
25. ### Math

Hi, would someone mind just checking the answer I got for this formula and tell me if I'm on the right track or not. Question... x+y=21 3x=4y Answer I got... x=84 y= -63 I didn't get that. Check your math. I found 7y=63 but not y = 63. You can always check your answer. Is 4X...
26. ### Math: Vectors

Find any vector w that is perpendicular to both vector "u = 3j + 4k" and vector "v = 2i". Note: i, j and k are unit vectors How would you solve this problem? Please walk me through?
27. ### Math

1. Solve for x: 4x/9 = 2(x+4)/3 2. Factor completely : x to the fourth power -16... 3. If a = all #s between -5 and 5, B= all primes and c= whole numbers how many numbers does the intersection of A,B, and C all contain? i think its 2...
28. ### math

help me solve these problems please 1 1/2 - 3 2/5 + 8/15 - 2 2/3 (-4 7/12) - (-3 2/3)- 1 /24 + 2 5/8 -3 1/2 - (- 1 5/6) + (-1 1/12)+ 2 3/4 8-5*2+6/(-2) this i think i can get the right answer 8-10+(-3) -2+(-3)=-5 is that the rite answer 2 7/9/ (-1 4/81)- 11/17 -1.5 / (-3) + (-...
29. ### math problem

Please solve and explain, your profit for 1 day is \$1,281, and the cost of running the business for the day is \$1,463. What is the revenue for that day? Explain your answer.
30. ### Math

Solve for the zeros of the function using the quadratic formula. 3x^2=-4x+6 I know what the quadratic formula is but when I put it into the formula I keep getting an error on the graphing calculator.
31. ### Math

The roof of a solar house is elevated by an angle of 50° at the front and by an angle of 40° at the back. Write an equation to determine the angle at the peak. Use <P. solve the equation
32. ### Pharmaceutics

*How are pastes prepared? *How do pastes differ from ointments and creams? *Are pastes still prepared commercially? Why? *What are different components of medication ointment and ointment base that are prepared by fusion? Describe each of them. THANK YOU SO MUCH IN ADVANCE...
33. ### Science

*How are pastes prepared? *How do pastes differ from ointments and creams? *Are pastes still prepared commercially? Why? *What are different components of medication ointment and ointment base that are prepared by fusion? Describe each of them. THANK YOU SO MUCH IN ADVANCE...
34. ### physics

A ball thrown straight up from the ground passes a window 5.6 m up. An observer looking out the window sees the ball pass the window again, going down, 3.4s later. Find the velocity with which the ball was initially thrown.
35. ### ALGEBRA 1

Solve by whatever Method 1. X^2 +8X = -16 X^2 +8X +16 = -16 +16 (X +4)^2 =0 X+4 =+/- SQRT 0 X=-4+/- 0 X=-4, X=4 2. 3x^2-2x-5=0 X=-b+/- sqrt (b)^2-4ac 2a a=3 ,b=-4,c=-5 X=-(-2)+/- Sqrt (-2)^2-4(3)(-5) 2(3) X=2+/sqrt64 = 2+/-8 6 X= 2+8=10/6=1 2/3, x=2-8=-6/6=-1 Solution set is 1...
36. ### math

solve the problem the national debt is \$\$44,280,000,000 and the population is 4,920,000.what is the debt per person
37. ### math question

/how do i solve this? The probability of winning a game is 15%. If you play 20 times,how many times should you expect to win? A.5 times B.3 times C.6 times D.15 times
38. ### math

There are some caps in a box. 1/6 of them are red, 1/3 of them are blue and 3/7 of the remainder are green. If there are 27 green caps, how many caps are there altogether? How should I solve this?
39. ### Math help

You have \$59.95 in your wallet and want to buy some new CDs. If the CDs are \$11.99 each, what number of CDs, x, can you buy? Write and solve an inequality.
40. ### math

four friends shane a box of pens.each 3 pens write and solve the equation to find the number of pens in the box
41. ### Cultural Diversity

I am once again looking for credible resources...I need a resource for the political,social, economic, and familial conventions(norms) or statuses of Mexican-Americans, Puerto Ricans, Cuban-Americans, and Colombian-Americans. I have tried google and the only thing it brings up...

Two particles with positive charges q1 and q2 are separated by a distance s. I got up to here: (kq1)/x^2 = (kq2)/(s-x)^2 I now have to solve for x by cross multiplying and using the quadratic equation but I can't seem to isolate x without it being canceled out. =S
43. ### math

Question: Use logical equivalnces to show that the propositions !p -> (q->r) and q -> (p v r) are logically equivalent. I AM SO DAMN CONFUSED! I tried to solve !p -> (q -> r) first and I only got to !p -> (!q v r) I cant see any other rule that would apply ...
44. ### statistics

once again I am not getting this. assume that the population of heights of male college students is normally distibuted with a mean of 69.09 and standard deviation of 4.71. A random sample of 92 heights is obtained. find the mean and standard error of the x distribution. find ...
45. ### Physics

A capacitor of capacity C is charged fully by a cell of emf V/2 and then it is disconnected and again connected with a cell of emf V (+ve plate of capacitor with +ve terminal of cell and vice versa). The heat developed in connecting wire during charging by second cell is ??
46. ### Physics

A capacitor of capacity C is charged fully by a cell of emf V/2 and then it is disconnected and again connected with a cell of emf V (+ve plate of capacitor with +ve terminal of cell and vice versa). The heat developed in connecting wire during charging by second cell is ??
47. ### English

Wulliam became famous and had a chance to study in high school again. ------------------------- In this sentence, what is the role of "to....." in "a chance to..."? I mean the relationship between 'a chance' and "the to infinitive." Are they in apposition? Or does "the to ...
48. ### engglish revised

In the first argument, the writer is trying to establish a plausible argument on catastrophic events, such as the 911 attacks on the World Trade Center, and how we as Americans are more susceptible to react with rage, when an event of this magnitude hits closer to home. ...
49. ### Math statistisc

I have a 6 sided dice with numbers 1 to 6 written on faces. What number(s) would have to show up if you rolled the die five times in order to have the smallest possible standard deviation? What number(s) would have to show up if you rolled the die 5 times in order to have the ...
50. ### Math statistisc

I have a 6 sided dice with numbers 1 to 6 written on faces. What number(s) would have to show up if you rolled the die five times in order to have the smallest possible standard deviation? What number(s) would have to show up if you rolled the die 5 times in order to have the ...
51. ### Math statistisc

I have a 6 sided dice with numbers 1 to 6 written on faces. What number(s) would have to show up if you rolled the die five times in order to have the smallest possible standard deviation? What number(s) would have to show up if you rolled the die 5 times in order to have the ...
52. ### help!

Can you please give me one of them so I cansolve for the other one?PLease! The general formula for a straight line is y = mx + b. Just plug the points into the equation to arrive at two equations. 6=2m+b 10=4m+b you have two equations and two unknowns. Solve them ...
53. ### physics

Rocket-powered sleds are used to test the responses of humans to acceleration. Starting from rest, one sled can reach a speed of 444 m/s in 1.80 s and can be brought to a stop again in 2.15 s. (b) Find the acceleration of the sled as it is braking and compare it to the ...
54. ### ENGLISH

Which of these events in the plot of Silas Marner best represents the complication in the novel? a.Silas tells Molly he has learned to trust again. b.Godfrey learns that Molly is dead. c.All of Silas's gold is stolen following fifteen years of self-imposed isolation. d.Eppie ...
55. ### Math

14.Henry rides his bike 6 miles every 4 days at that rate how far will he ride his bike in 12 days? A.6miles B.12miles C.16miles D.18miles D 25.Evelyn used 4 eggs to make 2 omelets. What is the ratio of number of omelets to number of eggs used? A.4:6 B.2:1 C.1:2 D.1:4 B 16....
56. ### Engineering

I need help solving the following simultaneous equations, for the values of Vo and a: 1.4 = Vo e^-32a 4 = Vo e^-6a I've never come across simultaneous equations like this (e is the base of natural logarithms, so perhaps taking logs of both sides might help, but I'm stuck after...
57. ### math

a prism with a square base has a height of 45 cm and its volume is 7,200,000 cm^3. Would the answer be 9,720,000,000? if not,I need help figuring out how to solve and answer
58. ### Math

Use the compound interest formula A=P(1+r)^t and the given information to solve for r. A=9,000,000 P=80,000 t=40 I have done this problem over a over and still get the wrong answer.
59. ### math

name the operation needed to solve at the airport 72 people are waiting to board 9 different planes. If an equal number of people board each plain, how many people get on each plane?
60. ### Math

Solve the equations to the nearest tenth and use the given restrictions. 1. tan theta = 8.055, for 90 degs < theta < 270 degs. Ans: 262.9 degs?
61. ### Math

Solve the equations to the nearest tenth and use the given restrictions. 2. sin theta = -0.204, for 90 degs < theta < 270 degs Ans: 191.8 degs?
62. ### Math

Solve the equations to the nearest tenth and use the given restrictions. 2. sin theta = -0.204, for 90 degs < theta < 270 degs Ans: 191.8 degs?
63. ### Math

1. Which function represents an initial population that increases 22% per year where A represents the initial value and X represents time in years? A. Y=A(0.22)^x B. Y=A(0.68)^x C. Y=A(1.22)^x D. Y=A(1.68)^x I do not get how to solve this problem. Any help would be great. ...
64. ### Math

The tornadoes have won 75% of their games. If they their next 4 games, their win percentage goes up to 80%. How many games have they played right now? (Please explain how to solve this problem)
65. ### Math

which value is the "whole" in the following problem: 14 is what percent of 56? I said the "whole" is 56, due to the problem not stating whether i was to solve the problem by using proportions or whatever. May you check my answer? Thank You
66. ### Math

Solve the Go.a ball was dropped from a height 80m above a concrete floor. It rebounded to the height 1\2 of its previous height at each rebound. After how many bounces is the ball 2.5 high
67. ### Physics

.) Beth launches a rocket out in the courtyard. It stays in the air for 7.25 seconds before coming back down. a.) How high did it get? b.) With what velocity did it hit the ground upon returning to Earth? c.) What is its rate of acceleration as it slows down, reaches the peak ...
68. ### Math

Complete the following statement in the best way: Before you can solve any formula for area or volume, you must be sure that all your measurements are in the same __________. a. number of digits b. proportion c. decimal value d. Units I believe it is UNITS D.....
69. ### math

An amusement park purchased equipment from a manufacturer for a list price of \$42,000, minus trade discounts of 30/20/15. Calculate the amount of the trade discount on the purchase. A. \$19,992 C. \$23,520 B. \$22,008 D. \$29,400 could someone help me understand how to solve this ...
70. ### math

i'm having difficulty understanding radicals.. I don't know how to type the radical sign on here so i'll use parenthesis instead like for instance 17+34 (192)/34 how would u solve that.. also how do u decipher the two multiples of 192 since it's not a perfect square?

I'm trying to solve this problem: What sinking fund payment would be required at the end of each three-month period, at 8% interest compounded quarterly, in order to amount to 20,000. I just need to know how to work the problem correctly.
72. ### Simple math question!

h(0.5) if h(x) = 6-2x^3 So I set it up as 6 - 2(0.5^3) correct? That way only the (0.5) is being cubed, and THEN multiplied by 2? Or does it mean to cube the entire product? Such as (2 x 0.5)^3? Ugh simple things like this always get me! I can solve it easily, just need help ...

write the partial fraction decomposition of the following rational expression ( hint: binomial expansion with Pascal triangle can be used to expand binomials. technology may be used to solve large systems using matrices or determinants) 4 ------------------------------------- ...
74. ### math

david wants to buy a motorcycle for2500. He has no money in his savings. He gets a job where he earns \$50 an hour. how many 8 hour work days will it take to reach his goal of 2500? Must write an equation to represent the situation then solve and explain.
75. ### math

Can someone help me how to solve it. A new medically approved wheelchair was considered to be an improvement over a standard wheelchair by 325 out of 450 patients in a survery. 20) What is the margin of error for the survey? Round your ansewer to the nearest tenth of a percent.
76. ### Calc-math

I can do the Ferris Wheel type. This one I can not solve. A light is attached to a 13 inch radius bicycle tire, at a point 8 inches from the center. If Harvey rides the bike at 15 mph, how fast is the light moving up and down at its fastest?
77. ### Math

A sales associate at a computer store receives a bonus of \$100 for every computer he sells. He wants to make \$2500 in bonuses next month. Write and solve an inequality to find the minimum number of computers he must sell.
78. ### Math

I have a question.. I have a 90.7% in math right now and I need to bring it up to a 93%. The only thing left is the final exam, which is worth 10% of your grade. Does anyone know a formula or a method that will allow me to calculate what I need on the final exam to bump me up ...
79. ### Physics

A skier speeds down a smooth ski slope which is at an angle of θ = 21° with the horizontal. The mass of the skier is 75 kg. Take the downhill direction to be positive and uphill to be negative. What is the net force acting on the skier? Ok, so I have set up these ...
80. ### physics

1.5 kg of an unknown liquid at a temperature of 17 degrees Celsius is added to 2kg of water at 50C. The final temp of the mixture is 45C. Assuming no heat is lost to the environment, determine the specific heat capacity of the unknown liquid. So I assume you would do Qmct = ...
81. ### Physics

The ball spins at 7.7 rev/s. In addition, the ball is through with a linear speed of 19 m/s at an angle of 55 degrees with respect to the ground. If the ball is caught at the same height at which it left the quarterback's hand, how many revolutions has the ball made in the air...
82. ### Anatomy & Physiology

A woman who had measles as a child gets the disease again after her younger brother contracts the disease. This probably occure because od a defect in which mechanism? A.viral mutation B. Artificial acquired immunity C. Natural acquired immunity D. Passive immunity
83. ### physics

If I have a unit vector of (2.06 j)m/s(I have no i vector because it's 0 on a horizontal impulsion, in accordance with my problem,how do I convert that into polar notation? Will I be doing rcos0, with r being 2.06? . But then again I have no angle, just the angle of before the...
84. ### Algebra-Please check my calculations

Could you please check my answers and help with the ones I can't figure out- 1. Solution to the radical function sqrt(1/2x+1) = 1 is x = 0 True or False I think it is true according to my calculations 2.Solve x = sqrt(8x) 8x = x^2 x^2 - 8x = 0 x(x-8) = 0 x = 0 x-8 =0 x=8 the ...
85. ### Maths

The numerator of a fraction is 7 less than the denominator. If the numerator is increased by 2 and the denominator by 9,we again get the same fraction. Find the fraction.
86. ### English

In the sentences below, which of the bolded adverbs is used to describe an adjective? A. Troy was TOO cold to continue ice skating. B. Gia ran VERY quickly to get to the bus on time. C. Jack grumbled LOUDLY about his history grade. D. Nora looked SADLY into the mirror. I ...
87. ### Mousetrap Cars (again)

What is the history of the mousetrap cars?
88. ### Psychology-Ms Sue

Ms Sue, can you help me with psychology again? T_T
89. ### math

Which sample is better for making a prediction? Why? Sample A: A random sample of 10 customers leaving a store Sample B: A random sample of 100 customers leaving a store i think maybe sample a would be more better for just a prediction because it's just 10 people. but then ...
90. ### Algebra help!

1.) Solve the system by triangularizing the augmented matrix and using back substitution. -x-y+z=1 x-y-4z=-7 4x+y+z=6 2.) Perform the indicated row operation, then write the new matrix. -4 4 | 4 9 -6 | 5 -2R1+ R2 ---> R2 3.) Solve the system by triangularizing the augmented...
91. ### math

i need to find when the function increases or decreases, this is the derivative of the function (10 − 3x)/(2 ¡î5 − x) but how do you solve the function when x is zero?
92. ### Math - Logarithm

Solve the following logarithm equation. Please show all of your work. log (5 + x) – log(x – 2) = log 2
93. ### Math C30

What's next? Solve: cosx(tanx + sqroot3) - sqroot3/2(tanx-sqroot3) Provide exact answers .. help
94. ### math

How do you solve sqrt(1-(9/x^2))? I know the answer is sqrt x^2 -9/x but I'm not sure how to get the answer on my own. If you could show steps on how to get the answer that would help me a lot!
95. ### Math

Solve for the 1st term of the arithmetic sequence whose 33rd term is -2p and whose 61st term is 26p.
96. ### math

The ratio of boys to girls is 3 to 7. If there are 200 more girls than boys, how many boys are there? Use a tape diagram to solve.
97. ### Math

A 120-ft long playground is just 15-in on the scale drawing.What is the scale on the scale drawing? How would you solve this question?
98. ### Math

Angles K and O are supplementary. If measurement angle K= 3x+10 and measurement angle O= 10x-12, find the measure of each angle. I don't understand how to solve.