Celina

Here is the problem that I need to solve: y = ab - ac (to the second power). I need to solve the problem for a. Thank you!

16 years ago

Here is the problem that I need to solve: y = ab - ac ² (that is a second power symbol if you can't tell). I need to solve the problem for a. Thank you!

16 years ago

Please help!!! I have a worksheet of problems to do for homework, most of which I don't understand. My teacher hasn't really been answering my questions well. We are supposed to write equations, but if you have another way, that is fine, too. If you know...

16 years ago

Here are two more problems I have for homework tonight. I have gotten answers, but I used "guess-and-check" and could not find an equation like I am supposed to. If you answer, please tell me if my answer is correct, walk me through your way of solving it...

16 years ago

Does anyone at least slightly understand direct and inverse variation? I get the basic idea, but I'm still a little confused, especially with inverse variation. What I'm having more trouble with is conversion using direct and inverse variation. Today, my...

16 years ago

Once again, I have some confusing problems for math. If you know any answers, even if you only know one, please tell me the answer and walk me through it so I can actually understand how you get to it. Thanks! #1: A space craft travels at a speed of 8/10...

16 years ago

I have just one math problem that I need a little help with. Please give me the answer, and walk me through it, too, to help me understand it. Thanks! The price of a ring is decreased by 40% and the resulting price is increased by 50%. The final price is...

16 years ago

Here is my problem. Please walk me through how you got to the answer. Three-fourths of a number equals 3 times the number increased by 9. Is this the correct equation? 3/4n = 3n + 9 Here's another. In this one, does "is" mean "equals"? One-fourth of a num...

16 years ago

Here's another problem I'm having a little trouble with: A piece of string is 40 cm long. It is cut into three pieces. The longest piece is 3 times as long as the middle-sized piece, and the shortest piece is 23 cm shorter than the longest piece. Find the...

16 years ago

Wow, this one is hard to explain... First, I'll give you the info you need to solve the problem. Tough Cell Batteries Battery Life in Hours Lower Extreme: 84 Upper Extreme: 140 Lower Quartile: 97 Upper Quartile: 110.5 Median: 104.5 If you need more info a...

16 years ago

I'll try posting this again since no one responded before. Wow, this one is hard to explain... First, I'll give you the info you need to solve the problem. Tough Cell Batteries Battery Life in Hours Lower Extreme: 84 Upper Extreme: 140 Lower Quartile: 97...

16 years ago

One of the questions on a worksheet I must answer is this: You're in study hall and trying to get your homework finished. The students next to you continue to talk and interfere with your concentration. What should you do? You are supposed to put your own...

16 years ago

Here is my question: If (2, -3) and (-5, 4 are the endpoints of a diagonal of a square, what are the coordinates of the other two vertices? I got (2,3) and (-5,-4). But the other question was: What is the area of the square? How would you find this? Do yo...

16 years ago

Does anyone know a link to a site that has a list of adjectives starting with the different letters of the alphabet? I have used one before, but I forget its name. I need an adjective that starts with "s," to go with sisters who don't get a long. My title...

16 years ago

Here's another thing I must solve: For each graph of a function, determine these things: a. f(1) b. domain c. any x-values for f(x)=2 d. range I can't put the graphs I need up here, but is anyone able to explain how you would find these things? Thank you...

16 years ago

Does anyone know a good review site to review for my Spanish final that is tomorrow? We have just learned simple things like the numbers, alphabet, colors, days of the week, months, etc. A game or some other way of reviewing would be helpful. Thank you!

16 years ago

What does collinear mean?

16 years ago

I'm very confused with what I'm learning about right now. We are kind of talking about slopes, functions, graphs, etc. Today, my teacher taught about midpoint and distance, and did not explain very well at all. Would someone please explain to me how to fi...

16 years ago

I'm a little confused on how to solve this: The number of cricket chirps per minute is given by N(t) = 7.2t - 32 Where t is the temperature in degrees Celsius. a. Graph the equation N(t) = 7.2t - 32 I have learned a few ways to graph equations. One way wo...

16 years ago

Another question: A cell phone company charges $60 for a cell phone and $40 per month under its economy plan. Formulate and graph a model that can be used to determine the total cost, C(t), of operating a cell phone for t months. Find the total cost for 5...

16 years ago

I really need help with my math homework today, because I am totally confused! Please give me the answer, but also walk me through it, too, so I can fully understand it, because just the answer won't really help. #1: A math teacher wants to curve a set of...

16 years ago

Here's the question I'm having trouble with: Tell how you would identify the intercepts for the graph of the equation: 3x + 6y = 18 I'm not exactly sure how you would find the intercepts from this equation. Thanks!

16 years ago

Is there a link to a site where I can find a way to solve a Soma Cube, and where each shape would go? Thank you!

16 years ago

What is the length of a string that has a standing wave with four nodes (including those at the ends) and lambda = 24 {\rm cm}

15 years ago

How many different seven-digit telephone numbers are possible if no number may begin with 0?.....the answer is 9,000,000 but I'm not sure how to get that, plz explain:)

14 years ago

How many ten-digit telephone numbers are possible if the first three digits must be different? The answer is 72,000,000,000.... I need the method to get that:)

14 years ago

How many arrangements of five letters from the word 'certain' contain the letter 't'? Explain your reasoning.

14 years ago

Gisela lives in a subdivision where the streets are laid out in a grid pattern. Her school is eight blocks south and six blocks east of her home. How many different direct routes could she take when she bicycles to school if she always stops by her friend...

14 years ago

Write each number in scientific notation: 1) 15.01 ans. Is it 15.01 x 10 minus to the power of 2?? Am i wrong?

14 years ago

The number of nuts in a package of Nutty's premium cashews is normally distributed with mean of 432.4 nuts and standard deviation of 5.8 nuts packages with fewer than 420 nuts or more than 445 nuts will be rejected by quality control a) what is the probab...

14 years ago

I need an advertisement which hasn't been banned yet, but that you think should be banned. I don't really pay attention to ads, so I don't know which ones should be banned. I actually have to write a complaint letter on one.

14 years ago

Is there any advertisment which you think should be banned?

14 years ago

I need some help with this specific question. In a computer catalog, a computer monitor is listed as being 19 inches. This distance is the diagonal distance across the screen. If the screen measures 10 inches in height, what is the actual width of the scr...

14 years ago

Write the definite integral for the area of the region bounded by the grpahs of y=9-x^2 and y=0

13 years ago

A ray of light enters a glass block from air at an angle of incidence of 50 degrees. The angle of refraction is 30 degrees. What is the refractive index of the glass? What is the value of critical angle for this glass? Thank you :)

13 years ago

If you can see the face of a friend who is underwater, can she also see you? Please explain. Thanks :)

13 years ago

The parabolic TV antenna receives electromagnetic waves from satellites. What is special about these rays?

13 years ago

Twelve man take 6 hours to finish a piece of work. After the 12 men have worked for 1 hour, the contractor decides to call in 8 men so that the work can be completed earlier. How many more hours would 20 men take to complete the remaining work?

13 years ago

How to find the total surface area of a prism, cone and cylinder?

13 years ago

How many mL of .715 M HCI is required to neutralize 1.25grams of sodium carbonate? (Producing carbonic acid)

12 years ago

"Find the area of a rhombus with sides of length 10 in. and longer diagonal of length 16 in." and Also, how do you solve the problem "Find the area of a regular decagon with radius 4 cm."

12 years ago

A picnic cooler contains different types of cola.12 regular, 8 cherry, 6 diet, 8 caffeine free, 10 diet vanilla, and some diet cherry. U pick a can of cola without looking at its type. There is a 44% chance that the drink selected is diet. How many diet c...

12 years ago

Samantha is a baseball player, she has a batting average of 0.280. a) find the probability that at least 3 hits in her next 5 times at bat (12 marks) b)what is Samantha's expected number of hits in her next 10 times at bat? (3 marks)

12 years ago

The device shown below contains 2 kg of water. When the cylinder is allowed to fall 250 m, the temperature of the water increases by 1.4°C. Suppose 2 kg of water are added to the container and the cylinder is allowed to fall 750 m. What would the increase...

7 years ago

What I would do is replace the variables with the numbers and set it up like this: (-3 x 3) + (-2 x -1) -7. What's strange is that I got -14, too. The key could be incorrect, I have had mistakes in my math book before. If this homework isn't being graded,...

16 years ago

Try to think of factors that go into both of these numbers-- the one that I can think of is 9. Divide both of them by 9, or another factor, and that is your reduced fraction. Hope I helped!

16 years ago

I agree with GuruBlue, chihuahuas are very hyper sometimes and yippy. The elderly man might not be able to handle it and the cats might become scared. I really don't know about the other dog breeds. Probably the English Toy Spaniel. Hope I helped!

16 years ago

Thank you so much! I think I get it now.

16 years ago

I remember learning this. I'll show you how to do number 1. Think, does tossing the dime affect the outcome of tossing the quarter. And for number 2, would taking out a card from the deck affect what card you would get next? If you need more help, respond...

16 years ago

Well, specatacles are glasses. What rhymes with glasses that means a lady? Then, just add the apostrophes and/or s to make them possesive. Hope I helped!

16 years ago

Interesting-- some of your problems are similar to the ones that are stumping me! Maybe you would know some of mine. They are a few ones below yours, under Algebra by Celina. I'll try to help you. #1, I can't help you with. For #2 and #3, I would choose o...

16 years ago

That's the problem. You see, if it had said how many kids or how many girls there are, that would have helped. I copied the problem word for word, so that's all there is. Maybe my teacher messed up and forgot some info. Thanks for helping! :)

16 years ago

Try to think of a number that goes both into 676 and 1000. Okay, that might be a little hard to think of, but try out some random numbers and see if any work. Hope I helped!

16 years ago

Yes, you're correct!

16 years ago

Hey Courtney! You know who it is... well anyway, let me think of some. Fiesta Buenas tardes (good afternoon) Spicy as a chili pepper Oh my tacos Sorry I'm not very helpful. SYL (See you later)

16 years ago

Thank you so much for your help! :)

16 years ago

I think what you are supposed to do is divide the sentence in half, so it would make two sentences that make sense. I'm not positive, though. Hope I helped!

16 years ago

Thanks! Could you explain how you got your answer a little more and give me the numbers, too? Do you have any idea for the answer to number 2? Thanks so much!

16 years ago

Well, I think a footnote is in a textbook when a number is after a word (that almost looks like an exponent in math), and at the bottom of the page, it has all the words with their numbers on that page. Next to each word/number pair it has a definition or...

16 years ago

Thank you very much! :)

16 years ago

Wow... I'm not so sure I could figure that out on my own. I searched for it online, and here are all the numbers: 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97 Hope I helped!

16 years ago

What's your question?

16 years ago

Thank you very much!

16 years ago

Thanks!

16 years ago

I know how you feel, being in a confused state. I'm almost always like that in algebra class. Don't trust me on this answer... I'm not positive if this is what you mean. Do you know about cross multiplication? If you don't, you do now. Set up an equation...

16 years ago

Let me try again: I know how you feel, being in a confused state. I'm almost always like that in algebra class. Don't trust me on this answer... I'm not positive if this is what you mean. Do you know about cross multiplication? If you don't, you do now. 1...

16 years ago

Well, I could help you more if I could see the table... but that's okay. I think you're right for answer a). Well, I think what they meant for majority rule is whoever got the most votes, which would be (ADBC). But I don't know what plurality rule is. Sor...

16 years ago

Well, definitely not 5+3+4. I don't exactly get your other equations, so the one that makes the most sense to me is the first one, 5 * 3 * 4. What I would do is make a little chart. Number the shirts, and have the possible plant and shoes branching off, t...

16 years ago

Uggh... we learned this last year. I think I remember. I'm pretty sure that it means that -1 is the place where the line starts, and then you would use 1 to make the line. Since the number 1 is really the fraction 1/1 or 1 over 1, then to make the line on...

16 years ago

By what you said in the problem, I think you are trying to find a percent. In this case, you could set up an eqaution. Do you know cross multiplication. Well, just in case you don't, I'll show you. x/100 = 1.20/2.25 Then what you would do is multiply 1.20...

16 years ago

The last one I can help you with. Do you know how to do cross multiplication? I'll set it up for you: 375/100 = 1312.5/x Then, you would multiply 1312.5 by 100, and divide by 375. Hope I helped!

16 years ago

You're welcome. I'm glad I could help!

16 years ago

Just wondering... how did you get the x to the other side? And how did you get rid of the 25mph? Thanks!

16 years ago

That's funny... I know someone in my spanish class whose name is Cecilia... well anyway, I don't know the translation myself, but I would try going on a translation website or google "translation websites" Hope I helped!

16 years ago

Thank you so much! I found just what I needed! :)

16 years ago

Thanks for your response!

16 years ago

Do you have to solve for x or y? I have an algebra book... I'll post another response soon.

16 years ago

What you can do is make proportions. Do: 3/50 = 14/x Then, multiply 50 by 14 and divide by 3. So, yes, the answer is 233 and 1/3 Hope I helped!

16 years ago

Okay, I see. First take 2x away from both sides. That makes: 5y= 10-2x Now, I'm not positive about this part, but I think you would divide the whole side by 5, therefore making: y = 2-.4x or y = -.4x + 2 Hope I helped!

16 years ago

Ummm... I did graph them, and why would it be (-5, -3)? That would make the square... slightly diagonal, wouldn't it. I said -4 because that is directly below 4.

16 years ago

Hmmm... it can be anything? I got one: A Super Terrific... and then you can think of anything that starts with a c that you would want to put there, like a cat or a cloak or something. Just try to keep one thinking of funny topics. The A, S, and T could a...

16 years ago

That could possibly work. Thanks! :)

16 years ago

I remember doing this last year, so I'll try to tell you as much as I can remember. My teacher told us last year to start of thinking of it like an equation. Pretend the greater or less than sign is a equals sign. For #1, add 8 to both sides, like you wou...

16 years ago

Thank you, Sra. I actually did find the site (ESL Desk), but thank you for the link, anyway! The link you gave me actually has better ones than the one I was thinking of. Thanks for your help!

16 years ago

Sorry, what I wrote might not have made sense. Here's a re-written version. I'm very confused with what I'm learning about right now. We are kind of talking about slopes, functions, graphs, etc. Today, my teacher taught about midpoint and distance, and di...

16 years ago

I kind of get what you're saying... but what is a hypotenuse? Thanks for the help!

16 years ago

Thank you!

16 years ago

I don't think you posted your questions. Could you try to repost them?

16 years ago

I don't exactly get what you are saying, but what I would do is find 19% of $500, and then subtract it from 500. Let's call that answer x. Then you find 3% of your answer, x, and subtract that, and you have your answer. If you did that, or something simil...

16 years ago

Thank you so much!

16 years ago

That's funny, because in my packet, it said to "find the domain of C." But I see how that would not make sense. Thanks!

16 years ago

Thanks for replying so fast! Once you got to "subtract the second equation," I got a little confused. So basically its, 100-81=A(100-63), like you said. Does the B stay put? And what do you mean by "solve for A" and "put A into either equation?" Thanks so...

16 years ago

Oh, I see... when I got 19/37 when I solved, I thought I was incorrect. One last thing-- why did you write B= 100(1-19/37)=100(18/37)? Why did you take away 1? Thank you!

16 years ago

I hate to ask so many questions, but why did you write one, though? Thanks!

16 years ago

Thank you so much!

16 years ago

You're being so helpful, thank you! Just wondering, my triangle turned out to be very skinny. It's supposed to be this way, right? And for part d, that is how my teacher typed it, but in the other day's homework he also did a typo. Thank you so much! You...

16 years ago

I don't know how you would check, but by using paranpheses around certain parts of what you are typing in, it will make it do it. Hope I helped!

16 years ago

Just wondering: is this supposed to be a real story about something that happened to you, or is it a fictional story? If it is supposed to be a real story, then you might want to talk to your teacher and see if there is another topic you can write about....

16 years ago

I agree! Thank you, all of the people that are so helpful! :-)

16 years ago

Yes! I see, I didn't really think of it that way until after I posted the message. Thank you!

16 years ago

Thank you so much!

16 years ago

Ohh i accidently added an extra zero...thank you:)

14 years ago

Ok thank you:)

14 years ago

Thanks, you mean the KY Intense "Socks" right?

14 years ago

But how would you do it using A^2 + B^2 = C^2 ?

14 years ago

Thanks!

13 years ago

Thank you! :) that's what I got,is there any more work to it? Because its an 8 mark question!

12 years ago

I got 6 as the answr when I did the check it worked! Thanks for the help tho! :)

12 years ago

The device shown below contains 2 kg of water. The cylinder is allowed to fall 800 m during which the temperature of the water increases by 2.4°C. Some amount of water is added to the container and the experiment is repeated. All other values remain const...

7 years ago

What is the answer guys help!

6 years ago

Can you tell us all??

6 years ago