math..solve for u again
159,056 results, page 89

Chemistry
Only a chemist can be trusted with the combination to the safe containing a ton of money. The combination is the pH of solution A, followed by the pH of solution C. (for example: is the pH of solution A is 3.47 and the pH of solution C is 8.15 the combination to the safe is 3... 
chem
how is the oxide of arsenic worked out when its in its gas state please help im flumuxed Please clarify your question? What do you mean by "worked out? the question states determine the molecular formular of the oxide of arsenic when it is in its gaseous state evidence arsenic... 
SIXTH GRADE MATH
The ratio of wins to losses for a basketball team is 2:3. Which of the following is a possible total number of games? A. 7 games B. 14 games C. 25 games D. 26 games Can someone show me how to solve this problem please? 
SIXTH GRADE MATH
The ratio of wins to losses for a basketball team is 2:3. Which of the following is a possible total number of games? A. 7 games B. 14 games C. 25 games D. 26 games Can someone show me how to solve this problem please? 
Match please
I have a few match problems that I can't figure out. 1.solve: 3x+5=x√7 (that's a radical sign) 2.factor: (2k+3)2(2x+3)(y2)20(y2)2 (the "2" after (2k+3) ans (y2) is suppose to be a square sign. thanks if you can help, or even if you can't i ment "Math" lol 
math
can someone show me the steps for this problem because i got it incorrect in my exam. Solve each of the following quadratic equations. 4x^2=13x+12 what i had put was that x is 3/4 and x is 4 but i just got my result back and it was wrong... 4x^2 13x _12 = 0 (4x+3) (x 4) = 0... 
math
Can someone check over these problems for me? 1. The width of a rectangle is fixed at 28 cm. What lengths will make the perimeter greater than 70 cm? A: the length must be greater than 7 cm. 2. 7x=63 A: x=9 3. Is (8.9)a solution of 2x+4y=12 A: No 4. 1/2x=9/10 A: 9/5 5. ... 
3rd grade math
i need help!! if the estimate is greater than or equal or 1,500, find the exact sum. if the estimate is less than 1,500, do not solve the problem. 867+734=1601 number model:_______________? thank you! 
Math
The followoing question comes from my Algebra II book and it goes like this: Thirty percent of the sulfur desiccated. If 42 tons did not disccate, how much sulfur was there in all? How do I solve this problem? All work has to be shown. 
math
Use the formula nCr to solve Of the 100 people in the U.S. senate, 18 served on the Foreign relations Committee. How many ways are there to select Senate members for this committee (assuming party affiliation is not a factor in the selection) 
Math
1. When four fan coins are flipped what is the probability of getting either exactly two heads of exactly two tails? 2. Solve for x 3xx√3=6 3. In the figure below ABCD is a rectangle and DE=DC. Given Ad= 5 and BE=3 find DE Thanks! 
MATH
SUPPOSE IT TAKES NO MORE THAN 25 MIN FOR YOU TO GET TO SCHOOL. IF YOU HAVE TRAVELED FOR 13.5 MIN ALREADY, HOW MUCH LONGER, AT MOST, MIGHT YOU TAKE TO GET TO SCHOOL? PLS HELP ME. I NEED TO SOLVE AN INEQUALITY THAT MODELS THIS PROBLEM. THANKS 
Math help please Ms. Sue agian
Write an equation with a variable on both sides of the equal sign that has infinitely many solutions. Solve the equation and explain why it has an infinite number of solutions. (3 points) I need help with this one too. Thank you! :) 
math
Solve for x 2^x+1  2^x = 112 Put this in exponent form: (3¡îx)(¡îx©ø) Put into equation form: Horizontal stretch of 2, up 3, left 6, reflection on xaxis. Please help me with these three so I can work on the rest using these as examples. Thanks so much for your help!!!!:) 
Math
If a navigation error puts a plane 2 degrees off course, how far off course is the plane after flying 121 miles? Round to the nearest tenth of a mile. Just explain how to solve, please. 
Math
Whats the quickest way to tell how many solutions you will have. in a problem? a. solve for f(X) b. set the equation equal to zero c. the highest deree will be equal to the number of solutions. My answer choice would be C. Am I correct? 
Math Help!
tan (2theta + 8) = 0.489 theta = ? i'm on my last attempt to solve this problem on my hw. I tried subtracting 8 from 0.489 then trying to find the inverse but no luck.... I got 4.245 as one of my answers,0.7267, no luck so far :( 
Math
Hello! I need help with this question. I know that I'm using the Law of Sines, but I'm confused on how to solve. I have to also round my answers to the nearest tenth for degrees and to the nearest hundredth for sides. Thanks! Given: A = 60 degrees a = 9 c = 10 Find: b= C= B= 
math grade 12
Sara got 85% and 89% on her first two Maths tests. What must she get on her third test to have at least a 90% test average. Assume three tests, represent the problem with an inequality and then solve it. 
Math
Skyler = 32.35 LuiZ = 21.78 Todee= 28.19 Together= 28.19 U sing the individual times for your tema member. Erige an equation to model the work done and solve that equation for the estimated time that it takes to complete the task together. 
Math
Hi, I need help on this problem:Solve the system of equation by giving an ordered pair for 14x +3y = 115 7x +3y = 80 Use the 3 Methods in your work. Thank You, I am not sure how to use graphing, substitution, and elimination, please show these methods. 
Math
Use a proportion to find the missing side length in the following similar figures. Both are triangles one is small and the other is bigger. The small is 4m and 2m the big one is 9m and you have to solve for x on it. A. x=4.5 m B. x=18 m C. x=8 m D. x=2.25 m Not sure? 
Math
Sarah can afford $255 per month for 6 years on a car payment, what is the price of a car that she can afford at this time? Assume an annual interest rate of 8%. I do not remember how to solve for problems like this one. 
math
"solve each problem and write your answers in scientific notation." 1. (6.0•10^5) •(3.0•10^4) 2.(5•10^2)/(2•10^3) 3.(2.56•10^6)•(3.56•10^2) 4. "In a recent year , the population was about 2.52•10^7 people. Its land area is about 4.05•10^5 km^2. What was ... 
Math  Calc 2/Algebra
I'm trying to find the partial fraction decomposition of: 10x^2+2x2/x^2(x+1) I already found B=2 and C=6 Plugging in the numbers, I get: 10x^2+2x2=Ax(x+1)+(2)(x+1)+(6)x^2 How do I solve this for A? Maybe this is just some algebra that I'm rusty on. But I'm having trouble ... 
Math
A chef makes 4 different quiches as the special of the day. At the end of the day, each dish had 3/8 of the quiche left. How much quiche was bought in all? Could someone please explain how to solve this problem? 
math
Solve for x and y if 5^(x−y) = 625 and 3^(2x) × 3^y = 243. (note: I posted a similar question to this before, but this uses indices) (Also note: Answer is, x = 3, y = 1 ; 7, and the question if inputted into an online calculator, is incorrect.) Thnks for your time. 
Math
Jean is seven years older than her brother Bob if he is three years older than their sister Mary. If the sum of their ages is 40 Siri how old is each you must set up an equation, solve and explain each step 
advanced math
what method would be the best if i want to solve more than one ordinary differentials equations? or how would i attack this kind of problem? for example: dy/dt = (1y)/(1+x+y) dx/dt = (yx)/[2(1+x+y)] i just need a starting point cause i couldn't think of a way~ :P any help ... 
Math, Quadratic Functions
A rectangular chicken yard was built against an existing barn wall (as shown in the picture). 30 m of fencing was used to enclose the yard. a) Find the dimensions of the yard its area is 108 m! How to solve this problem..? 
Math
A person walks on the building. He slips 1m for every 5m he climbs. If the building is 53m high and he takes 5 seconds to climb 1m . Find the total time taken by him to get on the top of the building . Please solve this problem using integers. 
Physics
we must apply a force of magnitude 82.0 N to hold the block stationary at x=2.0 cm. From that position, we then slowly move the block so that our force does +8.0 J of work on the spring–block system; the block is then again stationary. What are the block's positions, in cm... 
Algebra help needed please!!
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+yz=4 6x2y+2z=8 12x+4y4z=16 2. Solve the system by ... 
Math
Genral solution of: 2tan x + 3=0 Solve for x if: 2tan x +3 =0 and x E[180;180] 
math
Solve this 5+6 whole number 1 over 2+2whole number 7 over 10 
math
How do i solve for this identity..... cos2theta=2sec^2theta/sec^2theta 
math help!
(2√2)/(3+√2) can you plz tell me how to solve it? plz hurry up 
Math please help!!!
please help me solve these problems! Thank you! 1. Simplify: (3p^5)(5p^2)+(7p^3)(2p^4) 2. Simplify: (6x^22xy+3y^2)(4x^2xyy^2) 
Math
(<=) less than equal to sign (>=) greater than equal to sign Solve 2.7(<=)b+5 a. b(>=)7.7 b. b(>=)2.3 c. b(<=)2.3 d. b(<=)7.7 
Math
Solve the system using substitution. x = y − 6 y = 6 − 3x A. (0, 6) B. (6, 0) C. (0, −6) D. (−6, 0) 
math
how do i solve 3√8x^2y^3  5x√32y^3 or 4√98y^11  9√128y^11 
Math
square root (x3)square root(x)=3 can someone please solve this for me 
Financial Acct. (again) sorry
Hi again, I was wondering if anyone might know how to check my answers to these questions on accounting...thanks!! 1. The current portion of longterm debt should a. not be separated from the longterm portion of debt. b. be paid immediately. c. be reclassified as a current ... 
Math/Calculus
Please take a look at my work below and provide a good critique: Solve the differential equation using the method of undetermined coefficients or variation of parameters. y''  3y' + 2y = sin(x) yc(x)= c1*e^2x+c2*e^x y"3y'+2y=sin(x) r^23r+2=0 (r1)(r2)=0 r1=1, r2=2 yp(x)=... 
trigonometry
tan60=2 tan30/1tan^2 30 sqrt(3)=I'm confused of that 2 but i guess it means to multiply. again.. sqrt(3)= (2) sqrt(3)/3 / 1 sqrt(3)/2 ^2 now i don't know how to square tan . if u can show me in details i would appreciate it. this is just a practice problem and i want to ... 
To KK
I have removed all your posts (English and English 2) from overnight because of the incredibly objectionable content. Currently, you are also blocked from posting anything. If your posting privileges are restored, please make sure you do not post any type of objectionable ... 
English Writeacher
I want to thank you for advice and help in my English course. On my 9 page final I missed 7 questions, but what was so bad it was on complex and compound complex sentences my weakness I knew. I made 93 on final. I have a 96.83 grade average for course. Again Thank You for help... 
English
Identify the incorrectly punctuated sentence. A: Reaching for the lightbulb. Greg fell off the stepladder. B: Thinking he might be hurt Robert ran in to help.*** C: Changing a lightbulb is not difficult. D: Holding the stepladder, Robert watched Greg try again. 
math{HELP HELP}
i don't understand these mmath equations. 1) 6y = 24 2)y / 7 = 2 y=_________ On number one i know that if there is a letter next to a number it means multiplication.and i still don't know how to solve it. On number two i don't understand anything at all:( 
math
for every lefthanded person there are about 4 righthanded persons. If there are 30 studentsa in a class write and solve a proportion to predict the number of students who are righthanded. 
Math
Could someone please help me. Solve the linear equation by substitution. Y=102.2x 5x+y=70 For the first equation I am getting x=21.4 and for the second equation I am getting y=37. The answers are 21 3/7 and 37 1/7. Could you show me how you do this so I can see where I went... 
Math
Kelly was helping a friend with cleaning her bedroom. Kelly spent two hours and cleaned 80% of the room. what fraction of the room did Kelly help clean? How would I solve this  divide? 
Math / Algebra 2
Use trigonometric identities to solve each equation for the given domain. sin 2θ = cos θ for 0 ≤ θ < 2π *Anyone who has any idea which identity to use is welcome to help. 
math; solve problem
it is recommended that there be at least 13.65 sq ft of ground sace in a garden for every newly planted shrub. a garden is 32.2' by 21'. find the maximum number of shrub the garden can accommodate. 
math
One leg of a right triangle is one less than twice the other. The area of the triangle is 18 square feet. What is the length of the 3rd side of the triangle? Solve by factoring. A= 1/2 (b)(h) 18= 1/2 (x)(2x1) 
Physics help again!
A ball is thrown horizontally off a 35 m tall building. It hits the ground 80 m from the bottom of the tower. a. what is the balls time in the air [i got 2.67] b. what is its initial velocity? [i got 0] c. What is the magnitude and direction of its velocity as it strikes the ... 
Chem
The apparent equilibrium constant for the reaction A + B <==> 2C is Kc= 4.11 at 298.2 K. Given that the initial concentrations of A, B, and C are .10M, .10M, and zero, respectively, find the equilibrium concentrations of A, B, and C. I had this long, drawn out equation ... 
math
please check my work. 1. The number of words (x) Tina can type per minute is at Least 50. write and graph and inequality. (I broke it down to these 2 choices because the A & D was incorrect) B. x is less than or equal to 50 C. x is greater than or equal to 50 ~~~~ 2. Gavin ... 
calculus
solve for the second derivative and set to zero f"(x) = ((x^24)*sin(2x) [(2x)(1+cos^2(x))]/ ((1+cos^2(x))^2) i don't know how to set it to zero and solve i get this: (x^24)(sin(2x))= (2x)(1+cos^2(x)) thanks for help 
Algebra 1 urgent
(a) The surface area of the prism shown is 314 square meters. Write an equation that u can solve to find the value of w. side a=wm b=8m and c=(w+4)m (on the picture) I'm guessing u use the formula surface area=2ab+2bc+2ac??? Well if so I need all that solved into y=ax*2+bx+c ... 
algebra 1
Solve the following problem: Kate bought a car for $20,000. A study shows that a car will depreciate (go DOWN in value) by 15% each year. How much is Kate's car worth after 5 years? a) Formula used: ___________________________________ b) Substitute values: ... 
math
g/5+2>10.......solve Please read: http://www.math.com/school/subject2/lessons/S2U3L4GL.html Now try adding 2 to both sides. then multiply both sides by 5 
PhysicsPlease help
I have a question about the International Space StationIts been orbiting earth at 350kmIf the radius of the earth is 6,370 km, what is the period of orbit for the Space Station? Secondly, if it was moved to a geosynchronous orbit, what would the new altitude of the station ... 
TRig WIth LoGs help1!!
i have problem i can't solve and the book is no help.. anyone got osme hints or somehting i could start off doing? the problem is... Solve for x: log(x^3)= (log x)^3 Rewrite it as 3 log x = (log x)^3 The use algebra (divide each side by log x) to get (log x)^2 = 3 log x = (+ ... 
basic geometric
The width of a rectangle is 6 centimeters less than the lenght. The perimeter is 64 centimeteres . would you please help me, answer these work. than you. L = length W = width ================ eqn 1: 2L + 2W = perimeter = 64 cm eqn 2: W+6cm = L Solve the two equations ... 
Math
Could somebody please help me with a few Math questions? 1. Provide an appropriate response. True or False? 100.567 is between 10 and 100. 2. Use an annual percentage rate table to solve the problem. A family purchased a new ski boat for $20,000. The loan agency required a ... 
physics
A 250 g block is dropped onto a relaxed veritcal spring that has a spring constant of k=2.5 N/cm. The block becomes attached to the spring and compresses the spring 12 cm befor momentarily stopping. While the spring is being compressed, what work is done on the block by a) the... 
Math
Could someone please help me solve this problem, the age numbers that I am working with are 10yrs old 55yrs old and 75yrs. old. I need to know at my age of 55, in years, how old was the older person of 75 when I was born? Could you please write an equation that models how old ... 
part 2
These didn't want to post for some reason, let's try again, these are the questions: 1. When a company modifies its pension benefits the way General Motors did, what name do we give the added cost? How is it accounted for? 2. What does GM mean when it says its “unfunded ... 
Algebra1!!!
1.Six pears and three apples cost $3.90. Two pears and five apples cost $3.30. How much does one pear cost? Hint: You have two unknowns (variables), so you need two equations. Write one equation for each situation and solve the system of equations. 6P + 3A=3.90 2P + 5A=3.30 ... 
Chem (Help!)
I need help in using gas laws to solve problems. I need help with this question: What is the pressure in atmospheres exerted by a 0.500 mol sample of oxygen gas in a 10.0 L container at 298 K? Also what formula would I use to solve the pressure in this problem? Also in order ... 
Algebra II
Find the solution if possible. If there is not enough information to solve the problem or if it has no solution, say so. If extra information is given, identify it. 14. A collection of 30 coins worth $5.50 consists of nickels, dimes, and quarters. There are twice as many dimes... 
Advanced Alegebra
How do I solve the following problems? My homework was to correct a puiz that I failed, but I do not know how to solve these problems..please help! Solving systems of equations using elimination: 7.) 10x  10y = 0 5x  4y = 8 Answer (8,8) I got the right answer because this ... 
Physics Experiment
In the experiment Standing Waves,if you continue to lwer the water level after recording l(m) at the first sound resonance at fixed tuning fork frequency, you will hear the sound again but sound gets louder (second resonance). At this point, by what factor has l(m) increased? ... 
physics
A motorist is driving at 20m/s{\rm m/s} when she sees that a traffic light 200m{\rm m} ahead has just turned red. She knows that this light stays red for 15s{\rm s} , and she wants to reach the light just as it turns green again. It takes her 1.0s{\rm s} to step on the brakes ... 
Math
Welsh Corgis generally have shoulder heights between 24 and 32 centimeters. Anne wants to compute the corresponding range for the skull size of Welsh Corgis. She once again uses the formula relating the estimated shoulder height H (in centimeters) of a dog to the internal ... 
Algebra
10. Solve each radical expression. Check your solution. 1=√(2v3) 11. Solve each radical expression. Check your solution. √(n+5)= √(5n11) 12. Tell which solutions, if any, are extraneous for each question. √(12n)=n; n= 4,n=3 
math
I would appreciate any help thanks select two intergers between 12 and +12 write two equations that have the two intergers as solutions. solve the equation using addition/subtraction method 
5th grade math
what is the range for the following number? 900,700,500,600,600,300,600,200,100,200? pleASE! EXPLAIN HOW TO SOLVE THE PROBLEM.. 
Grade 10Math
x+2y=3 5x+4y=8 I isolated x+2y=3 to make: x=32y then i began to sub in equation one with equation two: 5x+4y(32y)=8 5x+128y=8 after that i began to try to solve the equation but my answers were not correct. any help would be greatly appreciated! 
Math
I have the problem: A triangle has a base of 3.6 cm and an area of 22.32 cm squared. What is the height of this triangle. The teacher gave us the answer key and I know the answer is 12.4 but I don't know how they came to that answer. I can't figure out how you are supposed to ... 
Math
We are studying pythagorean Theorem. How do I set this up to solve? A jogger goes half a mile north and then turns west. If the jogger finishes 1.3 mi from the starting point, how far west did the jogger go? 
Math(Please respond, thank you)
The original equation was 1.7e3 = (0.0015 x)^2 / (0.025 +1/2x)(0.025 + 1/2x) Square root of both sides is 0.0412 = (0.0015x) / (0.025 + 1/2x) Solve for x and when I put in 0.001 or 1.0e3 it says that it is incorrect, I don't know why?? 
MAth
Malcom has 1/2 gallon of soup. He pours the same amount of soup into 8 bowls. which equation represents the fractional part of a gallon of soup, n, in each bowl? Please he;p solve with the letter n. thanks 
Math
Posted by NEED HELP on Monday, September 29, 2014 at 9:12pm. Have three problems and I'm really confused how to solve/simplify 1. 4/3+square root of 5 2. 4/4+4square root of 2 3. 1/1+ square root of 2 
Math
Whoever can help with a question I posted earlier. I am very sorry; I put the wrong variable in the question. Question is to solve for y and not "x" as my previous message and the equation is: x = 3(r + ty) So sorry for the confusion. Please help at your earliest. Thank you. 
Math 8th grade
How would I set up this problem to solve it: Gene offers 30 mins. and 60 mins. driving lessons. He gave 8 lessons that lasted 7 hours. How many 60 minute lessons did he give? 
math Please help!!
Using a scale factor of 1 inch = 16 feet, what are the blueprint dimensions of a room that is 20 feet x 28 feet? A. 1.5 in x 2.5 in B. 1.25 in x 2.25 in C. 1.25 in x 1.75 in D. 1.5 in x 1.75 in Could anybody tell me how to solve this problem, please? I really need help. God ... 
math
1. ¨C9x ¨C 5 = ¨C95 a. 17 b. 11 c. 10 *** d. ¨C10 2. w over four ¨C 4 = 3 a. ¨C4 b. 28 *** c. 3 d. 11 3. d over three + 10 = 7 a. 51 b. 20 c. 0 d. ¨C9 *** 4. 2(2 ¨C 2x) = ¨C3x a.¨C4 b. 4 *** c. 6 d. 0 5. 2.9n + 1.7 = 3.5 + 2.3n a. 3 *** b. ¨C3 c. 1.3 d. 1 For ... 
Math
Three pigs entered a race around a track. Piggly takes 6 minutes to run one lap. Piglet takes 3 minutes to run one lap and it takes Wiggly 5 minutes to run one lap. If all three pigs begin the race at the same time, how many minutes will it take for all three pigs to be at the... 
science
At 472 deg C the reaction reaches equilibrium with the following composition: [H2]=7.38atm, [N2]=2.46atm, [NH3]=0.166atm. Into the equilibrium mixture 1.5 atm of N2 is introduced: a. Calculating Kp and Q, determine in which direction the reaction will proceed after addition of... 
Spanish
Can someone please proofread my Spanish? Thank you. it will not let me post my HW because it says that I have posted a link but I haven't. Thank you for using the Jiskha Homework Help Forum. We'd be glad to proofread it if you can post it! Please try again. You can not copy ... 
info again.
I need the story of a cubanamerican that came by boat. I have been searching, I cannot find anything. Please let me know. I am so frustrated. Please help me. If I can find a more detailed story of the koreanamerican rather than the one that you gave me that will be very ... 
damon i need your help again
Julie deposited $300 into a simple interest savings account that earns 1.34%. If no money is added or withdrawn from the account, about how long will it take for the interest to equal the deposited amount? A. 8 months B. 1 year C. 7 years D... 
spanish III
These are my directions: Change the present tense verb in the sentence to the preterite tense. Can you help me understand how to do this? These are the Questions(15): 1. Voy a estudiar. 2. Vas a dar comida al perro 3. Es un estudiante. 4. Somos aquí. 5. Son cómicos. I'm ... 
@Help plzz check asap
I've removed the entire test you posted  without indicating your answers! Please post only those questions you have serious doubts about along with what YOU THINK the answer is for each. Then when someone comes online who has read that work, he/she may be able to help. Do ... 
Discrete 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 ... 
Math  Check My Answers, Please
Please help me by checking the following answers for me. 3. A student is attempting to solve the equation below for the variable x. Which of the statements below best applies to the mathematical work shown? Given √(4x6)=12, I square both sides, so (√4x)^26=&#... 
History
Ms Sue, I am sorry to be a bother again. The websites u sent me are pretty good; however, they focus mainly on Africa in itself and do not focus on WEST AFRICA>>>>> if they do focus on WEST AFRICA its always ECOWAS>>>>> do u or your colleagues ... 
physics again (check answers please)
What net force increases a velocity of a car from 20 m/s to 35 m/s in 8.0 s if the mass of the car is 1600 kg? (3000 N). What force would cause the car to stop? (3000N) What coefficient of friction is needed to supply the force of friction? (.0191) are they correct?