# Math/Physics

215,130 results, page 97

1. ### math

wat is dilation in math during moving or changing a figure
2. ### Math

the math problem is 8 3/5 divided by 1 2/3 =5 4/25 how do you answer with bar models
3. ### math

How could constructivism be used in an integrated approach to teaching science and math?
4. ### math -discrete math

Calculate P({{x}})x P(P({{{x}}})) Find the power set.
5. ### math

how to make a math problem of 8in long + 6in around
6. ### math

Given the proportion 3x+2y/7=2x+3y/8, determine the value of xy^2-x^2y/x^3+y^3 This is what I got so far... 3x+2y/7=2x+3y/8=k 3x+2y=7k 2x+3y=8k And that's where I'm stuck at solving this math question.
7. ### math

i have a math problem that say i have to divide 84 and 14 it and it equaled 51 then the book asked what does it tell me about 14 and 84
8. ### math

Find the slope of 0,0 3,5 please help i stink at math rise = 3 run = 5
9. ### math

examples of role play in math with dialogues and characters
10. ### math

I need help solving this math problem I am so lost when it comes to these problems. Which is the difference of 25 1/8 - 12 3/4
11. ### Math

what is the total width of 21 math books that are .78 centimeters thick
12. ### Math

My math problem is combining like terms then simply. 3 3 6b - 2b + 2b + 2b -b Answer is (b)

using mental math and distributive property solve: 25(12)

15. ### math

what does term "factor each expression" mean in 8th grade math?

tell how you uesd mental math to find the difference
17. ### Math 213 Elementary Math

Use the definition of less than to show each of the following: a. 2 < 4 b. 3 < 100 c. 0 < 3

19. ### math

this is not about math but i am from connexus too and the teachers only care about our grades i am a 7 th grader
20. ### math

Hello, I need help with this math problem 4+3/3 + 5+1/5 its a fractions question how do I figure out the answer, thanks

22. ### Math

What are equal intervals? I have a math question that deals with them but I don't what they are.
23. ### Math

what is the ratio of 4 engines to 18 box cars....trying to help my son in math???
24. ### math

Hi i need one more example of this algebraic expression please. and explain please. Fig# Value 1 0 2 1 3 8 4 27 Math-Nick
25. ### Math

How do you get the big number on a runaway math puzzle worksheet
26. ### math b

is there a web site to help with math b i don't understand angles
27. ### To Reiny, math helper

can you look at my post, its just 4 math terms I need to figure out, please help

ok I need help with this math question and will need help with a few others after this one is answered. -8=y/4 <-- Y over 4 i think Y = 2 but idk help me
29. ### math

use propertise and mental math to find the value. 19+(28+21) 3 times 270 (86+27)+3
30. ### Math!~Algebra

Issues with these 2 math problems and no examples in the book. S^8/S^5 -4x^3+9x^2-6x-1
31. ### Math

I need help with the below math problem. I have to write out the steps to show the answer. 2(x - 14) + 3 = 7x + 5

How can you use mental math to multiply 800 x 5?
33. ### math 1A

hey im having trouble with these math problem . if a=2 and d=7 6d-3a =? how do you solve and get the answer ?
34. ### Math

What is "mental math" and give examples. 4th grade
35. ### Math

Can someone give me the answers to the U6 math test? For 6th grade?
36. ### Math

1st grade math worksheet says Write some names for 12, what does this mean?
37. ### math(new)

i need a diagram to show me this new math and how it works. i am not understanding the concept
38. ### Chemistry

The population of San Francisco is 750,000 in an area of 49 square miles. What is the population density in San Francisco? Express your answer in people per acre. ( 1mi(squared) = 640 acres ) 49 sq mi x (640 acres/1 sq mi) =?? acres. (Note that sq mi cancels leaving acres.) ...
39. ### Physics

Hi guys, Im a bit stumped on how to solve an online physics homework problem and it's really bothering me. I have no idea how to come up with the angles or even attempt the problem and neither do my friends. We'd all really appreciate it if someone could help us. Many Thanks, ...
40. ### HELP MATH

lee looked at the results of an exam he had just given to his grade 2 math class. he saw that louise had a score of 95%. he also saw that the standard deviation for the test was 0. if arif was also in his grade 2 math class, what mark did arif get on the exam?

Please tell me where i went wrong. During an all-night cram session, a student heats up a one-half liter (0.50 10-3 m3) glass (Pyrex) beaker of cold coffee. Initially, the temperature is 19°C, and the beaker is filled to the brim. A short time later when the student returns, ...
42. ### physics

A mass m = 88 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 15.5 m and finally a flat straight section at the same height as the center of the loop (15.5 m off the ground). Since the mass would not make it around the loop if ...
43. ### physics

A mass m = 88 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 15.5 m and finally a flat straight section at the same height as the center of the loop (15.5 m off the ground). Since the mass would not make it around the loop if ...
44. ### Physics(Please just check, thanks)

Using a force table the direction and magnitude had to be found for the following measurements: F1 = 200 grams at 30 degrees; F2 = 200 grams at 120 degrees The magnitude and direction found was 280 grams at 257 degrees. Using the magnitude and direction of F1 and F2 I need to ...
45. ### Physics/Statistics

We're actually learning propigation of error in my chem class, but it seems to be used equally as much in Physics/Stats. My teacher showed us two methods of doing it: REAL Method (Addition/Subtraction): square root[(error absolute 1)^2 + (error absolute 2)^2 +...(error ...
46. ### math

How many different ways can you and six of your friends sit in your assigned seats in math class? (A)6!; 120 (B)6!; 720 (C)7!; 2,520 (D)7!; 5,040 C OR D?
47. ### math(7th)

Can someone PLEASE help me:{ I never understand math. I always have a B in this class. ow do I find the unit rate of \$11.49 for 3 packages?? I have to round ti the nearest hundredth if necessary.... :) thank ya!!!
48. ### math

How many different ways can you and six of your friends sit in your assigned seats in math class? (A)6!; 120 (B)6!; 720 (C)7!; 2,520 (D)7!; 5,040 C?
49. ### math

i am having trouble iwth the following math problem: lim x->oo -x/squre root 4+xsquare I am not sure if i multiple the denominator with the numerator?
50. ### math

My little sister need help with her math having to do with congruent figures and motions and she has to describe how four turns can put a figure in its original position.
51. ### math (rounding)

Ms sue. can you,please show me how you got that answer. here is the math problem. write in standard form. thirty-six- thousandths.
52. ### math

Dear Ms.Sue is the answer to 5lb.-13oz. 67oz. By the way your helping my future,I want to be a math and science teacher.
53. ### Math 10-3

the work i got from my math teacher says Determine the surface area of each right rectangular prism to the nearest square unit. Any Help with that?....
54. ### math

for grade 3 math-- Explain what happens to the square if you double the length of its sides.Draw 2 squares to support your answer
55. ### math-any thoughts?

Not trying to bug anybody, but does anybody have any help they could give me with my 2 questions from yesterday? I'm really confused, so I'd appreciate ANY input. I've tried looking at math help websites and read all the definitions, but I'm just not getting it..
56. ### math

For the first day of school, our math teacher wanted us to write ten things to say instead of saying "shut up", I've only got a couple so far, any ideas?
57. ### math

i have a math competition next saturday can some please give me advice on how to study. some sites snd stuff i really need help for algebra thank you in advance
58. ### Math-Ms. Sue or Bob

Can either one of you help me with the math problems I asked? I really need help and do not understand how I would calculate the sample statistic and parameter population....
59. ### math

tell how you did it thank you Write an equation using n and t. The total bill (t) was twenty times the number of people (n). t = 20n ? "was", "is", "will be" translates into math as "="
60. ### Math- Integrated math 4.

From the function rule h(t)=60t-16t^2+2. How do we tell from the graph and the table whe h'(t) will be positive, where it will be negative, and where it is zero.
61. ### math

i have a math competition next saturday can some please give me advice on how to study. some sites snd stuff i really need help for algebra thank you in advance
62. ### Math

A ball has a radius of 56mm a)Calculate the surface area b)what is the volume of the sphere could somebody please answer for my math homework I need help
63. ### Math Algebra

Find the Values of X 12p^2+11p-22=0 I'm having some trouble with this math question can somebody please explain it. Please I would like to know how to do it since I have a Benchmark Tomorrow. -thank you
64. ### Math

Find the mode of the set of data 59,61,54,51,38 46,56,52,63,40,44 1.B 2.D 3.C 4.A 5.D 6.C 7.B 8.C 9.C 10.C 11.B 12.D 13.B 14.A 15.A 16.A 17.D 18.A 19.C 20.D Math lesson:10 Unit:2 Practice test 100% answers
65. ### Math

Hi I have a sample question for a math assessment that I wanted to ask about: What number is expressed by (9 x 6) -s- 3? a 18 b 27 c 6 d 21 Which of these answers is right and what is "s" suppose to mean? Is S like some sort of fixed value?
66. ### math

i cannot solve the math question i was given. Problem: a chef has to divide 5 heads of lettuce on 12 plates, this answer is to be afraction.
67. ### Math

I don't get where u got the 1:80 from 2:20 the time left in math class? Why and how did u change 2:20 to 1:80? I'm 25 yrs out of school trying to help my 5th grade daughter
68. ### math

unscramble these letter for a 5th grade math question dealing with fractions and decimals. the letters are IPDLISAF
69. ### math

An angle who's vertex is in the center of a circle? I am having a very,very hard time finding the word that fits this definition!! HELP! PLEASE! I usually do not have to get help with my Math.

Writing in math. Explain how you would use a number line to round 148 to the nearest ten.
71. ### MATH ??

Well I was given this in math here goes. In what year of our modern calender go Christmas and new years day fall on different days of the week? I just don't know this
72. ### Math

could someone please help me solve these two math problems? Which of the following numbers are integers? 2/13,570,0.096,-670,33.3? write in the lowest terms 2 1/4+4 1/7?
73. ### Math

Math Question: winning time of a marathon is 1 hour, 24 minutes and 11 seconds... How do I find the average speed?
74. ### Math

Hi everyone, I would like some help with Math.. And I would like help but if you have time.... My question is: (8x101)+3x101+(7x101010)= I don't really know the answer to this, but while i have this posted I will try to find a way to figure it out. Thanks!!!!

Can't figure this math problem out: Write an algebraic expression for the product of five less than a number and three, less eight, is twenty-eight. HELP ME PLEASE!!
76. ### Math 112

Can you use the numbers 1 - 9, along with any math symbols and operations, to arrive at the answer of 100 when the 6 and 9 have a negative sign in front of them?

I need help on how to figure out compund area of a shape. I meen we have the math part of the CRCT tommorow and I'm STILL NOT sure how to do it? Can someone please help me
78. ### math

i have a HUGE math test tomorrow, And I need some help on Factoring. Any websites that will give me good tutorials? I've found some but its total bs.
79. ### Math

Mrs. Sue, I have a math question if you can please help me on this. I am confused. I am doing coordinates. If I have a theater at 5 and a Restaurant at -4 (5,-4) how do I find out the halfway point in between?
80. ### Math

I'm not smarter than a 5th grader! ok. Assignment was to write "Fourty Thousanths". Would 0.040 really be right? That seems like four hundredths to me. I USED to know math Trying to help my son.
81. ### Physics, almost have it!

In a physics lab experiment, a student immersed 205 one-cent coins (each having a mass of 3.00 g *.003kg) in boiling water. After they reached thermal equilibrium, she quickly fished them out and dropped them into 0.244 kg of water at 20.0 C in an insulated container of ...
82. ### Math

Hello! I am not asking for the answer to this question, I am asking for a step-by-step explanation. Mr. Green band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 9 students who have Mr. Green for...
83. ### math final studying

beth scored 75 on her first math test. she scored 20 % higher on her next math test. what did she score on the second test?
84. ### Math

How do I work this out: beth took a math test and scored a 75. She took another math test and scored 20% higher. Whatis her scorefor the second test?
85. ### Algebra

70 students are studying mathematics,physics & chemistry.40 students study mathematics,35 study physics and 30 study chemistry.15 students are studying all the three subjects.How many students are studying exactly two of the subjects
86. ### Derrick

John kept track of all his math and reading test scores throughout the year as shown in the table below. Test 1:90math 80reading Test 2:75math 90reading Test 3:80math 70reading Test 4:90math 75reading Test 5:95math 90reading What is the difference between the median of his ...
87. ### Physics

Given Vector A with magintude 9.17 feet and Vector B with magnitude of 10.58 feet, what is the resultant of the two vectors added together? Answer: I know it would depend on the direction of the vector. If in the same line we would add them or if opposite lines we would ...
88. ### PHysics-almost complete!

In a physics lab experiment, a student immersed 205 one-cent coins (each having a mass of 3.00 g *.003kg) in boiling water. After they reached thermal equilibrium, she quickly fished them out and dropped them into 0.244 kg of water at 20.0 C in an insulated container of ...
89. ### physics

You are on a hike in the mountains. You have 4.92 km left to go before your next campsite. The sun will set in 6.6 h. What avergae speed must you walk to camp at sunset? Answer in units of km/h
90. ### Physics

A point (labelled P in the figure) is attached to the rim of a disk of radius 0.2 m, which can turn around an axis through its center. It is rotating counterclockwise with a speed of 2.5 m/s.
91. ### physics

when starting a foot race a 66 kg sprinter exerts an average force of 640 N backward on the ground for 0.85s. What is his final speed in m/s?
92. ### physics

A train is moving with an initial velocity of 30 m/s the breaks are applied so as to produce uniform acceleration of minus 1.5m/s Calculate the time in which it will come to rest
93. ### Physics

A 52kg ice hockey player moving at 11m/s slows down and stops over a displacement os 8.0m. Calculate the net force of the skater.
94. ### physics

A 2.8 kg rectangular air mattress is 2.00m long,0.500 m wide and 0.100m thick. What mass can it support in water before sinking?
95. ### physics

What is the magnitude of the apparent weight of a 69 kg astronaut 5200 km from the center of the Earth's Moon in a space vehicle moving at constant velocity?
96. ### Physics with Calc

A point charge of 1.8uC (microcoulumbs) is at the center of a Gaussian cube 55 cm on edge. What is the net electric flux through the surface?
97. ### Physics

A flywheel has a moment of inertia of 2.6 kg·m2. What is the average power needed to spin it up from rest to an angular velocity of 100 rad/s in 30 seconds?