# math..solve for u again

156,818 results, page 6

### chem

Benzaldehyde, C6H5CHO}, has a normal boiling point of 179.0 C and a critical point at 422 C and 45.9 atm. Using a phase diagram, estimate its vapor pressure at 125 Degrees I'm directing it up again to Dr. Bob. (or anyone else who can help) **** If the boiling point (179) is at...

### math

I am having a hard time on the ACT with the math have bought several books trying to learn the math and need some help please take the ACT sat. and again on the 23rd have to get good score to start classes in august

### physics

You are lying on the beach on a tropical island on the equator, watching the Sun set - what a beautiful scene! Immediately after the top of the Sun disappears, you stand up to watch the Sun set again. After the amount of time t=10 s the top of the Sun disappears again. Given ...

### College Math II

Solve by any method. a^4 – 5a^2 + 4 = 0 I am having problems figuring out what method to use to solve this problem. I need to show my steps and I am not sure how to do this. Can someone help? Thanks.

### MATH URGENT

a. Solve a – 9 = 20 b. Solve b – 9 > 20 c. How is solving the equation in (a) similar to solving the inequality in (b)? d. How are the solutions different? I don't know how to do this i forgot ... could u help (Steve, or Mrs.Sue, or Writeteacher plz help)

### math

solve each system of equations by substitution. y=3x-9 please help explain how to solve this using substitution.

### Math

Solve the inequality. The answer is suppose to be x> or equal to -8. Everytime I solve it I get O. -16x+16< or equal to -4(3x-12)

### Math

How would you solve 23=1-d? I don't even think there would be an answer to this.. can someone explain to me how to solve this? Thank you!

### Please help me solve it. Math

solve for the value of x: 6log (x^2+1)-x=0. please help me because I do not have any idea in this topic.

### maths-6th grade

plz solve according to sequence and series pattern a man was trying to swim to a buoy placed at a distance of 200m out in the sea. it took him 1 min to swim 20m. then a wave pushed him back 10m and he rested for about 1min before swimming again. he continued in his way for the...

### science

Hi it's me again. I realize that my last question didn't make much sense, so I will try to explain it again. Her it goes..... A long time ago the Mayans predicted that it took so many days( years even) for the sun to orbit the jupiter. This was without any sort of technology ...

### Please check my maths?

How should i do this question?? it says: find the equation of the tangent to the curve y=(x-2)^3 at the point (3,1). calculate the coordinates of the point where this tangent meets the curve again. I know how to get the first part, if i'm not wrong, it's y = 3x - 8 but no ...

### Physics

A block oscillates on a spring and passes its equilibrium position with a speed of .157m/s. It's kinetic energy is zero when the block is at the distance of .1m from equilibrium. Assume no friction between the block and the table. What is the period of its oscillation? v=.157m...

### Math

Let's do this again: is 14/3 a rational number even though the calculator says .666666666667? Please answer all questions, thank you.

### Math

I came up with no solution for this equation. Could someone please let me know if I am correct? If not, I will try again, but I have already tried it 3 times. [x/(x+5)]-[5/(x-5)]=(x^2+25)/(x^2-25)

### math

The cubed root of x+5=3.In solving this I get x=22. Is there another possible solution for x? Can I have this quick? Thank you so much. It is due in about 1 hour. Thanks again

### MATH

It's me again, I didn't have the sign after the 6. It was suppose to look like this. 2x+6>7x-6 I just need a demonstration on how to do it, I am rusty! Thanks, Tina

### Math

Hi again, has anyone taken the Lesson 20: East and Southeast Asia Unit Test cause im freaking out cause its so hard. Anyone, plz help me.

### Math

Graph the function Identify the vertex and axis of symmetry f(x)=2x^2 + 4x +1 please explain steps I need to do. I keep looking at notes and just can't grasp any of it. Failing math not sure how to start again. I think I missed something major.

### Math

Solve simultaneously for the two equations for x and y 5x(cos 45) + 15y(cos 30) = 2,000 5x(sin45) - 15y(sin 30) = 0 I tried adding these two eqn. to elimate y and solve for x by adding [5 x cos 45] and [5 x sin 45] but the value for x is too high. Would I have to use trig ...

### math

Here are a few problems I need solving Make sure to show a check for the solution and write the solution in set notation like {x|x>5}: Solve for y -7y-14>42 Solve for x -2(4x+5) < 2x-20

### Math

Set up and solve a system of equations to solve the application. A rectangular area of 525 square feet is enclosed using 100 feet of fence. What are the dimensions?

### chemistry

hello this is ellie again. I need help on this one problem A solution of 0.314M KOH is used to neutralize 10.0mL H3PO4 solution. H3PO4(aq) + 3KOH(aq) → K3PO4(aq) + 3H2O(l) If 29.3mL KOH solution is required to reach the endpoint, what is the molarity of the H3PO4 ...

### RATE, DISTANCE, TIME

TIM PADDLED HIS KAYAK 12 KM UPSTREAM AGAINST A 3 KM/H CURRENT AND BACK AGAIN IN 5 HR 20 MINUTES. iN THAT TIME HOW FAR COULD HE HAVE PADDLED IN STILL WATER 12/(v+3) + 12/(v-3) = 5.33 hours Solve for this speed in still water, v. 12(v-3) + 12(v+3) = 5.33 (v^2 -9) 24 v = 5.33 v^2...

### early childhood

" I eated it all up" said jimmy Mrs newman, his teacher, should say 1. jimmy , say that again, but instead of saying' eated it all up" say I ate it all up" 2. "you eated it all up? then what happened?" 3. what did you eat up 4 that isn't the right way to say that try again 1 ...

### algebra1

The sears tower in Chicago is 1,454 feet high. suppose you take a sheet of paper and fold it once in half, than fold it in half again,and keep folding it over and over again. How many times would you have to fold it to create a piece of paper that is higher than the sears tower?

### algebra

solve for the indicated variable: a. temperature formula solve for F: K=5/9(F-32)+273 b. annual interest rate solve for R: A=P+Prt im posting this the second time, but the first reply i got didn't help much :( can you show me how to do at least one of these?? thanks

### Math

Part 1: When writing linear equations, how do you determine which form of a line to use? Part 2: Choose 1 set of points from the choices below. Then, solve the problem and post your solution, showing your steps. Write an equation in point-slope form for the line that passes ...

### TO DRWLS/MATH HELP PLEASE

How do i solve inequalitites with three variables. I still can't figure it outplease help. x+y=1 y-z=-3 2x+3y+z=1 THE ANSWERS ARE X=3,Y=-2,Z=1 i KNOW THE ANSWERS I JUST DON'T KNOW HOW THE BOOK GOT THE ANSWERS . i 'VE TRIED MANY DIFFERENT WAYS AND I STILL DONT' UNDERSTAND IT ...

### math

belinda if ur still here to help i would appreciate it so much but 5z-2 (5z-2 is under a radical sign) +7=10 anyone else who knows how to solve this with it coming out equal please help thanks again :) wow, I am SO incredibly stupid 3 times in a row! When you get to 5z=11, you...

### Math - Algebra

Solve the inequality. n-1/3n < n-4/3n-4 (it's actually less than or equal to) My first instinct is to multiply 3n, but that'll just give me squares and makes it harder to solve. I also thought about getting a common denominator, but I'm not sure. Thank you!

### Math

The sheet is titled Solving Inequalities. I need to solve this question by equivalent equations and show my steps. So, how do I solve 6x<12? Would I divide both sides by 6 meaning x would = 2? or??

### Algebra

Can someone please help me with math problem and explain to me step by step how to solve it so I will know how solve other problems like this Thank you in advance Multiply and then, if possible, simplify by factoring /7x /21y

### Algebra Problem

I've gotten confunsed. Please help. Solve: 2y-a = a + 3b ____ ______, for y 3 4 Please show how to solve this. If you mean (2y -a)/3 = (a + 3b)/4 then 2y - a = (3/4) (a + 3 b) 2y = (7/4) a + (9/4) b y = (7/8) a + (9/8) b f(x)=x(squared)-4x+9 solve for x

### equations & inequalities

1.simplify this expression 4p+9+(-7p)+2=? a.3p+11 b.3p+7 {c.-3p+11} d.11p+11 2.solve this equation 4y+228=352 a.y=-31 {b.y=31} c.y=145 d.y=3 3.solve this inequality 3p-16<20 a. p<1/3 b. p<1 1/3 c. p<12 d. p<-12 4.solve this inequality 3b-7<32 a. b<5 b. b&...

### Algebra

Simplify this expression (DO NOT solve for x) 5x+6(x+2)-8(x-3) I have no clue, can someone tell me how to solve it? Please don't tell me the answer, only how to solve it. Thanks :D

### math

solve: log base2(log basex(x+6)=1 There's 2 different bases, how do I solve for x?

### Math

4.905t^2 + 2.93t - 10 = 0 I have to solve for t. How do I solve this equation step by step? Thanks.

### math algebra solve proportions

i need help on g over 32 = 8 over 64 solve each proportion

### math linear equation

Solve the linear equations by the matrix method:a+3b+2c=3,2a-b-3c=-8,5a+2b+c=9.solve for a:b:c

### math again

K : KILOGRAM H : HECTOGRAM D : DECAGRAM B : BASE D : DECIGRAM C : CENTIGRAM M : MILLIGRAM I really hope someone has an answer to this.Thnx(:

### math

I know all my answers in my quiz but this one please help Order the rational numbers from least to greatest :0.42, -1/2, 11/20, -0.51 thanks again I'm not good with decimals :P

### math

justine a security guard has 3 successive night duties a week when will they see again if they are together now. find gcf

### Math

A defective clock is set correctly at 12 nn.However it registers only fifteen mins. for each hr.In how many hr.will it again register the correct time?

### math

A defective clock is set correctly at 12 nn.However it registers only fifteen mins. for each hr.In how many hr.will it again register the correct time?

### calculus

I am suposed to apply L'Hospitals rule to solve. I can't seem to solve it tho. could someone explain the steps to me? Thanks! the limit as x approaches infinity of: xe^(1/x)-x This is what I got so far: xe^(1/x)-x x(e^(1/x)-1) e^(1/x)-1/(1/x) Now its in the right form to solve...

### physics

A car goes around a flat curve of radius 50m at a speed of 35mph. What must be the minimum coefficient of static friction between the tires and the road for the car to make the turn? r=50m v=35mph=15.65m/s F_sf=? I know that F+sf= (meu)(F_N) But the mass of the car isn't given...

### math, algebra

How can i solve for this would it best to factor or use the quadratic formula. solve: x^2+2x-8=0 How about for this problem as well: solve : x^2+7x-1 = 0 in the first, can you think of two multipliers of -8 that have a sum of 2?? how about 4 and -2 so it factors! in the second...

### MATH

I NEED TO SOLVE FOR Y AND X im getting rele confused on this. ok here is the prob. x+y=5 x-2y=-4 equation 1 x+y=5 equation 2 x-2y=-4 Multiply equation 1 by -1. Add equation 1 to equation 2. The x term cancels. Solve for y. THEN, put the value of y into either equation and ...

### algebra

I need help in identifying a graph. I tried textbook and plugging no. with no luck All numbers on right side of (y) line. Bottom of parabola is on x=4 and y=-4, going up f(x) dot is on x=3, y=-3 (left line going up); right line going up is x=5, y= -3; going up again dots on x ...

### Math

HELP Find the solution for x,y. In the problem... 5x-3y=-11 x-2y=2 Multiply the second equaton by five. 5x-3y=-11 5x-10y=10 subtract the second equation from the first. 7y=-21 solve for y, then put y into either of the beginning equations to solve for x.

### math

could someone please check these problems for me? Thank you! 1. -0.7x<-35 x<50 2. Solve by elimination 3x+4y=3 6x+8y=6 answer:0 3. find y intercept to graph x+5y=10 answer: (0,2)(10,0) 4. use distributive law to solve 7(w-5)=-35 7w-35=-35 if i add 35 to both sides i get ...

### math

could someone please check these problems for me? Thank you! 1. -0.7x<-35 x<50 2. Solve by elimination 3x+4y=3 6x+8y=6 answer:0 3. find y intercept to graph x+5y=10 answer: (0,2)(10,0) 4. use distributive law to solve 7(w-5)=-35 7w-35=-35 if i add 35 to both sides i get ...

### Math

I need help with how to do these problems.. SOLVE THE EQUATION USING THE ZERO PRODUCT PROPERTY -8n(5n+3)=0 SOLVE THE EQUATION BY COMPLETING THE SQUARE.. ROUND TO THE HEAREST HUNDRETHS X^2-3x=4 4x^2+4x-24=0 Thank you... I don't get how to do these please explain. Thank you very...

### math

Explain two ways that you can solve for R in the following division statement. Then, use one of your methods to find R. x^3+4x^2-3x=(x-1)(x^2+5x+2)+R could you divide x^3+4x^2-3x by (x-1) to get the quotion of (x^2+5x+2)+ the remainder which would be r? Also what would be ...

### college algebra

solve the following logarithmic equation. 1. 2log(lower2) (x-2) + log(lower2)^2=3 I do not know how to make the 2 by the g on my computer. 2. log(lower729^x) + log(lower27^x) + log(lower3^x) =9 again I do not know how to make the numbers lower case please show work, and if you...

### Algebra

Solving quardratic equations using factoring. 2X^2+2X-4=0 The book says the answer is -2,1. I got the -2,1 but not in the order of -2,1. I used FOIL to solve. When I use -2,1 I don't can not solve. When I use 1,-2. I can solve. I am not clear.

### College Physics

1. A spring gun is made by compressing a spring ina tube and then altching the spring at the compressed position. A 4.97-g pellet is placed against the compressed and latched spring. The spring latches at a compression of 4.06 cm, and it takes a force of 9.12 N to compress the...

### Math

What are the solution sets of the following 3 problems,the square root of x squared + 3x = x-3, the square root of 3x + 10 = x + 4 and finally the square root of 8x - 2 = the square root of 2x? Help much appriciated. I will one as an example. sqrt(3x + 10) =x+4 I hope that is ...

### Algebra

Snap to It... I snap my fingers now, in one second, I smap them again. I wait two seconds and snap them a third time. I wait 4 seconds before snapping them again. Then I wait eight, then sixteen, and the pattern continues. The interval between each snap doubles each time. How ...

### Algebra

Snap to It... I snap my fingers now, in one second, I smap them again. I wait two seconds and snap them a third time. I wait 4 seconds before snapping them again. Then I wait eight, then sixteen, and the pattern continues. The interval between each snap doubles each time. How ...

### math

Hi - I'm reposting this thread please read the bottom...thanks. Ajax is 8 km due west of Oshawa. Uxbridge is 16 km NW of Oshawa. How far is it from Ajax to Uxbridge? Explain whether you have enough information to solve this problem. my answer was 13.856 km but not confident ...

### algebra

how would i work out the following problems solve each formula in terms of the given variable 1. 5d-2g=9 ;g The formula A=2h(l+w) gives the lateral area a of a rectangular solids with length l, width,w and height h. 2. solve this formula for h 3. solve this formula for l The ...

### english

It's me again :) and again I need help with a mail to my prof... Dear Ms. ... ... and I thought about our presentation. Our topic is compound adjectives. Shall we only talk about compound adjectives or shall we also talk about Adverbs, Participles, how to superlative ...

### Geometry 2

In the same location at the same time of day, two trees casts a shadow. The 60-ft tree casts a 12 ft shadow, and the other trees casts a 4 ft shadow. How tall is the other tree? A. 20 ft B. 18 ft C. 52 ft D. 76 ft How do I solve this.. Im confused again...

### Physics

A Chinook Salmon has a maximum underwater speed of 3.58 m/s, but it can jump out of water with a speed of 6.68 m/s. to move upstream past a waterfall, the salmon does not need to jump to the top of the fall, but only to a point in the fall where the water speed is less than 3....

### maths

1.solve the set of linear equation by matrix method.a+3b+2c=3,2a-b-3c=-8,5a+2b+c=9 solve for a,b,c 2.solve by Guassian elimination method, (a)a+2b+3c=5,3a-b+2c=8,4a-6b-4c=-2, (b)

### Math

If 4 less than 3 times a certain number is 2 more than the number ,what is the number? a.-1 b.-3 c.1 d.2 e.3 Do I solve it like this: 3n-4=n+2?? If so, how do I solve this problem? You have the equation right.

### math

x+y= 30 4x+2y=74 y+ What does the y+ signify? Are you supposed to solve for y? Try doubling the first equation, giving you 2x + 2y = 60 and then subracting the second equation from that. -2x = -14 Solve that easily for x, and then substitute that x in any equation to get y.

### Math

Which of the following could represent a function having the given properties? 1)increasing slope for x<4 2) f'(x)>0 for all x(x cannot =4) 3)asymptote at x=4. Again I know we cannot graph but how can I figure this out?

### math

Can anyone help w/ these. 1) Solve the equation in the internal [0deg, 360deg]. a) sin 2x = -sin x b) sin 2T = -1/2 (where T is angle) c) 4 sin^2T = 3 2) Evaluate the expression. sin(arctan 2) 3) Rewrite the following w/o using trigonometric or inverse tirgonometric functions...

### Math

If you fold a normal piece of paper in half and then fold that in half and then fold that in half etc and repeat the folding 50 times, How thick is your final result? You can assume that the original piece of paper is 1/1000 of an inch thick. Let t denote the thickness. If we ...

### math, algebra

How do I solve for the following: Directions solve each literal equation for the individual variable. 2x + 3y -6 (for x ) Linear equation It has to equal something. What you have is a statement, not an equation.

### Problem Solving math

The amount of bacteria after n min if the initial amount of bacteria is q and the amount of bacteria doubles every minute. I suggest you make a table.Start with 0 time and 1 bug. time #bugs 0 &sbsp 1 1 &sbsp 2 2...

### Need all the help i can get

Hi i'm pretty new to this and i don't know what to do?So i put these questions up im not sure if my answers will show up because i used color letters, but i need help checking and explaining steps N 108 is 36% of what number? Write and solve a proportion to solve the problem. ...

### Imaginary Number i

I'm have a few questions about i: -How come sometimes you solve to get rid of it, other times you leave the it? For example, 4(-2+3i) becomes -8+12i, while other times (3+2i)(3-2i) yields 13 (the i is turned into negative one). How do you know when to keep the i and when not ...

### English

I urgenlty need you to check these sentences. Thank you. I'm emailing you the list of objectives again since my first draft was incomplete. I still have to add a few things as to the impact of the project on our students and the European value attached to it. Let me check the ...

### algebra

i need help with these problems (either a solution or how to plug them into a graphing calculator): 1) Solve by substitution or elimination 4/x + 1/y + 2/z = 4 2/x + 3/y - 1/z = 1 1/x + 1/y + 1/z = 4 2)Solve the system of equations by substitution. x^2 + y^2 = 25 x - y = 7 3) ...

### Algebra 1

A design calls for a rectangular garden with an area of 180 square feet. If the length is to be 3 feet more than the width, set up an equation and solve that equation to find the dimensions of the garden. I drew a sketch and labeled the width "w" and the length "w+3" my ...

### math-volume

I'm confused with how to solve this problem, so help would be great! The volume of any spherical balloon can be found by using the formula V= 4/3 pi r^3. Write an equation for r in terms of V and pi All this is asking you to do is get r=something. First, I would divide both ...

### math

I am getting difficulties by doin this homework.plzzzz can u hel pme;Solve this simultaneous equation;1/3(x+2)-1/4(y-1)=1,5X=4Y(B)SOLVE TO 2 DECIMAL PLACES'x-15/x=12. The second number am not sure of my calcalations;The point (x,y)is transformed by the matrix (5 -1) TO(19 9) (...

### Chemistry

The voltage generated by the zinc concentration cell described by, Zn(s)|Zn2+ (aq, 0.100 M)||Zn2+ (aq, ____ M)|Zn(s) is 24.0 mV at 25 °C. Calculate the concentration of the Zn2 (aq) ion at the cathode. Hi, I posted this question awhile back but I think it got drowned out so I...

### Math

Can u pls pls pls solve this algebraic expression?? I cant solve it although I tried many possible ways and solutions :/ 10+1/3[4k-(18+7k)]

### math

Not sure about this... Need to solve by substitution 8x - 4y = 16 y = 2x -4 Substitute 2x -4 for y in the first equation and solve the resulting equation for x. 8x - 4(2x-4) = 16 16 = 16 The two equations are not independent. One can be derived fron the other. There are an ...

### math

To solve for the following proportion, you could use equivalent ratios, divide out the known ratio, or use cross products. Choose one of these methods to solve for t. Show your work and explain why you chose that method. 18/5 = 4/t

### Math

1. use the law of Sines to solve (if possible) the triangle for the value of c. A=27.5degrees, a=15cm, b=36.4cm 2. use the law of Sines to solve (if possible) the triangle for the value of c. B=52degrees, a=8cm, b=12cm How do I solve these type of problems?

### English

1. She was very slow at the beginning, but she didn't give up. (What is the opposite of 'at the beginning'? Is it 'at the end, in the end or by the end'?) 2. Wilma tried very hard to be able to walk again. (What is the function of 'to be able to walk again'? Is it the object ...

### math

solve by the elimination method: 9x-9y=18 7y-3x=-8 please solve step by step thank you for your help

### Math

Hi. How to you solve 6.3*10^-4=4x^3 on a calculator? What buttons or functions do you press on the calculator to solve this

### Math

Hi. How to you solve 6.3*10^-4=4x^3 on a calculator? What buttons or functions do you press on the calculator to solve this

### Help please math

Solve using substitution. y = x – 2 x + y = 10 7x + 2y = - 8 8y = 4x Solve using elimination. 2x + 3y = 12 2x – y = 4 5x – 2y = - 19 2x + 3y = 0

### Math

The hypotension of a 30,60,90degree triangle is 5m.long write a problem real life situation that you can solve using this triangle. Plss help me I don't I don't understand how to solve 30,60,90 and also 45,45,90 degrees of a triangle

### Algebra II

1.Solve: x(x2 + 16) = 0 2.Solve: 2x3 + 6x2 – x – 3 = 0 3. Solve: 2x = x2

### algebra

solve the equation for x -2(2x-2)=2x for y 9x+y=9 solve theinequality 2x-6<8x+18 solve 0.14-0.01(x+2)=-0.02(3-x)

### math

Let F1=(-6,0) ,F2=(6,0) A=(10,0)64 + and B=(-10,0) write an equation of the set of all points p(x,y) such that (PF1/pluse /PF2/=20. now i know the problem is the square root of (x+6)^2 +y^2 + the square root of (x - 6)^2 + y^2 = 20 and the anserew is x^2/100 + y^2/64=1. i am ...

### Chemistry

Cocaine is a non-electrolyte that has a molecular weight of 303.4 g/mole. How many grams must be dissolved in 25.0 mL of Chloroform (density = 1.484 g/mL) to raise its boiling point to 65.5 Celsius? The boiling point of pure Chloroform is 61.2 Celsius. Kb Chloroform = 3.62 ...

### 3 grade math ms sue

problem solving draw a picture 1-Larry used a pattern of colors to make a cube train.He used a red cube,a blue cube,a red cube,and another red cube before he started the pattern again.He used 15 cubes. How many red cubes did Larry use? 2-Eric and Frank want to equally share 4/...

### MATH PLEASE HELP

1) -5g-6 for g = -2 2) Write an algebraic expression for the sum of 3 Coins and c Coins 3) What Value of x is a solution to the equation? x-2 = 16 4) use mental math to solve the equation. z/-12 = -5 5) estimate the solution of the equation x-8.1 = 5.3 to the nearest whole ...

### 8th grade math HELP URGENT!!!

Solve Each equation by first dividing each side of the equation by the number outside the parentheses. When would you recommend using this method to solve an equation? Explain. A. 9(x-4)=72. B. 8(x+5)=60