4,584 results, page 23
1. ## College Algebra/Drug Calculations

Good afternoon. I was given a large packet to practice some math to prepare me for drug calculations. For some reason, I cannot get the answer to this fraction. I've tried a few ways, but maybe I forgot a step or am overlooking some silly mistake... 5/6 x
2. ## math/What is a interval in math terms?

doe sanyone know what a interval is in math terms? i need the real definition and it is hard and i can not find it anywhere? can anyone help me? thanks,you rule Kayla an interval is "a mathmatical expression of 'betweeness' a---------b or a
3. ## Math Ms Sue

Which expression would you use to find the area of a rectangle with a width of 4 inches and a length of 6 inches? 4+6 4x6 8x12 8+12 Ms Sue this is Karen you helped in College English so well I am trying to help my 3rd grade granddaughter with no math book
4. ## stat

Construct a 90% confidence interval for the population mean. Assume the population has a normal distribution. A same of 15 randomly selected math majors has a grade point average of 2.86 with a standard deviation of 0.78. Round to the nearest hundredth.
5. ## Statistics

A math professor notices that scores from a recent exam are normally distributed with a mean of 64 and a standard deviation of 5. Answer the following questions using integer values. The professor decides to grade on a curve. If he wants 0.15% of the
6. ## MATH

My math book has this statement: "Describe how to use a Ten-Thousand Square to round numbers to the nearest 1000?" Is this the answer: If there is a number higher than 5 in the thousands place then you round up, but if it is lower than you round down?
7. ## Math/solving two-step equatios(distributive proper

Good morning! I am trying to help my nephew who because of seizures when he was younger has a hard time understanding math. I need step-by-step (written in words) on how to do two-step equations (distributive properties). 3(c+5)=12. 5(4d+8)=40. -(2k-11)=7.
8. ## math

you want to use a square section of your yard for a garden. You have at most 52 feet of fencing to surround the garden. write and solve an inequality to represent the possible lengths of each side of the garden. Math - Dylan, Tuesday, March
9. ## Math

On a recent math exam, Alex received a score of 92%. His z-score is positive 2. If the mean for the exam is 84, what is the standard deviation?
10. ## Math problems

On her math test, Terry got 52 questions correct out of 68. What percent of the test questions did Marie answer correctly?

Out of 42 kids in a class twice as many failed Ela as math,4 failed both. If 7 failed neither, find how many failed each subject. Show work thanks

Can you help me with my new math homework? Regroup each mixed number by regrouping a 1 from the whole number. 1 1/4. 8 5/12. 4 5/9. 2 1/3 Can you please explain each one of this problem for me please step by step.thank you!
13. ## algebra 2

what is the domain in interval notation when the restrictions are x cannot = 2 and x cannot = -2? I got (-infinity, 2) U (2,-infinity) (-infinity, -2) U (-2, infinity) but my math teacher marked this as wrong
14. ## Algebra

i am stuck on this one math problem. The question is to write a rule for the pattern (it is a section on sequences) The pattern is -5,10,-15,20,-25. What is the rule? A sub n = ?
15. ## To all students posting math questions

Please know that at least 3 of our frequently posting math tutors are away from their homes on trips. There are other very good tutors who are online, but less frequently. You'll need to be very patient.
16. ## math

Write to number sentences using the to numbers 7,56,and 8 then use the same numbers to show the division way label each number with its special math name
17. ## Math

Could anyone explain to be what these term mean in math? I try googling them but can't find the answer. Thanks 1.Opposite of a Difference 2.Opposite of a Sum 3.Opposite of an Opposite
18. ## Math

If Katrina rolled a standard die 57 times during one of her math stations. How many times could Katrina predict rlling a 2 or a 6?
19. ## 4th grade Math Help

hello, can someone please help with the below math question Mr. brooks brought a box of 66 acorns to class. Can he give 3 acorns to each of the 23 students in his class? Why or Why not? Thanks!
20. ## Chemistry

Does fission store or create energy. I think it creates it... can you help me with my math please? If atoms fission, energy is emitted in the process.
21. ## math

math problem :The pattern 10 (.95)^ x is a typical pattern for insulin. Please explain whet the 10 and the .95 mean when the graph y axis is 10 and the x axis is k

Writing in math - How can multiples of 10 also be multiples of 5?

24. ## Math

c-d / d-c I know the answer is -1, but what is the math that I have to show to get to that answer? Thanks!
25. ## math

plz help students in a math class need an average of at least 90 points to earn an A. one student test scores are 88,91,and 85 what must be the strudent score on the nest test to earn an A? it is Inequalities
26. ## Finite Math - Simplex Method

I think I have a good understanding of how to set up the problems but and solve them but I am not constant yet with getting the correct answer. Is there a way to check the answer? I am doing an online math class and it would be nice if I could check before
27. ## Math

Use the graph below to answer the following question. I'll post the link to the graph below. Find the slope. A. 2 B. -1/2 C. -2 D. 1/2 Honestly I'm horrible at Math so I can't really pick a answer can someone please help me? Please explain to me how to
28. ## Math

I am stuck on doing this math problem written on a sheet of paper. (eighty-one thousand minus fifty-five thousand, four hundred fifty-six) It mas to be done manually, without a calculator.
29. ## Math

8 Elizabeth recorded the length in centimeters of the pinky fingers of 10 students in her math class. The results are shown below. What is the mean absolute deviation for length of a pinky finger? 6.1, 5.4, 5.8, 6.3, 6.2, 5.9, 6.5, 5.2, 4.9, 5.5

find missing parts: percent fraction decimal ?? 1/200 ??? I think the percent is 0.5% I think the decimal should be .005 Am I right or wrong ? I am giving these my best shot, math is my worst subject.
31. ## math

You have several 5x11 rectangles, using only these rectangles, what can you make? A) 39x54 rectangle? B) a 39x55 rectangle? Plz help my parents are at work and sisters are doing homework, I'm 9 help!!! ( math due tomorrow!! )
32. ## math

A college offers nine different psychology courses,four different history course,thirteen different math course,and five different business courses. If a student is required to take one course in each of those four subjects,how many different ways are
33. ## economics

Y= consumption X= Disposable income Y X 5,000 10,000 A 8,000 20,000 B Refer to info above. The slope of the line between points A and B is: A) .3 B) 2.3 C) 3.3 D) indeterminate from this information. How do you figure this out. What is the math to
34. ## Aristotle

I know Aristotle studied a lot of things but was he a physicist as well? I feel like he wasn't really one quite yet because it wasn't really officially developed yet. But I know he was very into the math of astronomy and that's basically the first
35. ## math

I am getting so confused with my math problems... Can you help me please?... The question is - Rounded to the nearest ten I am 800. I am not odd. All of my places have a value greater than 0. The number in my ones place is 1 less than the number in my tens
36. ## microecon

Y= consumption X= Disposable income Y X 5,000 10,000 A 8,000 20,000 B Refer to info above. The slope of the line between points A and B is: A) .3 B) 2.3 C) 3.3 D) indeterminate from this information. How do you figure this out. What is the math to
37. ## Permutations

What is the number of permutations for the words: QUEUE COMMITTEE PROPOSITION BASEBALL You can arrange it in any order. You can also arrange it into any order of the letters. You could use the math from FACTORIAL. I need an answer ASAP!!!
38. ## Math (probability) repost for Christine

Math - Christine, Tuesday, October 16, 2007 at 9:13am The odds against Amy winning the tennis tournament are 5:2. Find the probability that Amy wins the tournament ?
39. ## math

A 12 cm by 12 cm ice cube tray is in the shape of a cuboid with twelve hemispheres inset. The depth of each hemispheres is 1 cm. a) If all the hemispheres were filled with water, calculate the total volume of water that the ice cube tray could hold. It is
40. ## chemistry

what is the total number of electrons shared in a double covalent bond between two atoms, and why? four. One covalent bond is two electrons, a double convalent is twice that. why wouldnt it be 8? Because 2*2=4. Reread Bob Pursley's answer. Two electrons is
41. ## careers

Thank you for your response. I am currently attending a community college and I'm really having a difficult time with the counselors and advisors. Because I attend only half-time,I am told I have to retake some classes, along with the fact that some
42. ## Algebra 1-Fractions

Or, eliminating fractions, I should say. So, I need some help. See, I am really not a big fan of fractions. But I need to eliminate fractions to do a math problem. First one is 1/2-x=3/8. I know how to find LCD, then multiply both sides, distributive
43. ## Math

I have math HW and these are the questions i wasn't aware of how to answer... please help. a)Prove that 4x-y-1=0 is parallel to y=4x-5 b)Show that the points A(3,1), B(5,2) and C(11,5) are collinear c)Show that the lines y=2x-4 and x+2y-10=0 are
44. ## Math

How do you explain to 6 year old what a rectangular coordinate system is and why it is important in math. What information is needed to locate a point in this system? And how does this relate to mapping and finding a point on a map.
45. ## Probability

Darby guesses the answers to six questions on the math portion of her college entrance exam. Each question is a true or false question. What is the approximate probability that at least 4 of her answers are correct? A. 0.23 B. 0.34 C. 0.66 D. 0.78
46. ## Math

Darby guesses the answers to six questions on the math portion of her college entrance exam. Each question is a true or false question. What is the approximate probability that at least 4 of her answers are correct? A. 0.23 B. 0.34 C. 0.66 D. 0.78
47. ## Math

Darby guesses the answers to six questions on the math portion of her college entrance exam. Each question is a true or false question. What is the approximate probability that at least 4 of her answers are correct? A. 0.23 B. 0.34 C. 0.66 D. 0.78 Is it B?
48. ## math

Need help with this quadratic math equation... Question: (x+1/x)^2 - 14(x+1/x) = 72 ended up with: x^2 + 1 - 14x^3 - 14x -70x^2 = 0 Where do I go from here? I'm trying to find a way to apply the quadratic formula to my results, but I'm having trouble. Is
49. ## Science

Ricco mixed up 500 cc of salt solution. He weighed it and found it's mass to be 585 g. Will his shake up toy work the way he wants it to if he uses this salt solution? Why or why not? Remember, 1 ml= 1 cc show your math
50. ## algebra solving log equations

n sqrt(x-8)= 5 I would like help to solve this what i did was to take away the square root i squared both sides coming up with (ln sqrt(x-8))^2= (5)^2 ln(x-8)=25 am i alowed to do this with ln in the equation? then i subtract 8 from both sides ln x = 17
51. ## math

Of the first graders who were asked, one sixth like math best, two thirds like reading best, and 12 like science best. How many first graders were asked their favorite subject? Please provide a "Draw a Picture" strategy to solve the problem.
52. ## u.s History

Ummm..... I'm really bad at reading charts, especially when it comes to math. So what I need to understand is- What does the chart tell me about the reaction of colonial legislatures to Pitt's letters? (I'm going to send you the chart in my next posted
53. ## Math

In math, if you are tracking your actual weight on a month to month basis, what kind of slope would you expect (negative or positive), remembering that goal of a diet is to lose weight.
54. ## chemistry

a chloride standard containing 100mmol/L of chloride ion can be prepared by dissolving the following amount of NACL in 1000ml of distilled water. dont know how to prepare a standard but heres my math
55. ## math

a tank was 10 percent full and contained 30l of water what is the full capacity of the tank please dear lectures it is not my homework i am poor in math and tommorow is my test if i could please get the work now
56. ## Math

My math teacher gave us this problem. Put the numbers 8,6,2,5,10,1,3,7,9,4 in number order of 1 to 10 in 5 moves. You can move 1,2,or 3 numbers for each move. If you don't have time to solve, any tips would be great!
57. ## Pre-calc Solve logarithmic

ln sqrt(x-8)= 5 I would like help to solve this what i did was to take away the square root i squared both sides coming up with (ln sqrt(x-8))^2= (5)^2 ln(x-8)=25 am i alowed to do this with ln in the equation? then i subtract 8 from both sides ln x = 17
58. ## math,algebra

How do you solve these types of math problems. Directions: Solve each literal equation for the indicated variable. A=1/2h(B+b) (For b) Area of a trapezoid It is just a matter of algebraic manipulation. A=(1/2)h(B+b) Multiply both sides of the equation by
59. ## Math

Hello! I am here because I have a question. In math we are starting a new unit: Probability. One of the questions on my homework are "A number cube with the numbers 1 through 6 is rolled. Find the probability of rolling a complement of 4." I have no idea
60. ## English

1. He would have opened the door. 2. He would have solved the math problem. 3. He would have met the person. 4. He might have opened the door. ---------------------------------------- From #1 to #3, actually he didn't do that. Right? Does #1 mean #4
61. ## MATH

WHAT IS A VERB? This is an English question -- not a math question. A verb is a word that shows action or a state of being.
62. ## math homework

Distance Rate Time in Math if x=yz, find the value x given that y=2 and z=5 Given T=RV, find Rif T=4 and V=8 Given w=xyz find w if x=2,y=3 and z=6 If C=ab, find Cif a=0.65 and b=1.9
63. ## Aztec high school

Math/ terry has a board that is 4 yards long. How much needs to be saw off to make the board 2 feet 8 inchs long?
64. ## algebra1/McDougal Littell

I need to know how to work this problem and show my work: 1/5x-3x+2=2/5x + 18 First rather the x so: 1/5x-3x+2=2/5x+18 1/5x-3x-2/5x=18-2 -3.2x=16 -x=5 x=-5 I don't know if this is correct. Please cheak over it. i don't unstand math. how can i?
65. ## algebra

The class average on a math test was 75.5 and the standard deviation was 4.2. Find the z-score for a test score of 81
66. ## math

math problem: a snake is 60 inches long. It grows 3 inches every year. How long will it be y years from now?
67. ## geometry

Your math classroom has 4 computers in it. There are 18 students in the class. What is the ratio of computers to students? whats the equation ?
68. ## math

Of 30 books (15 novels, 10 history books and 5 math books), how many ways can you get a bunch of four books to give to a friend?
69. ## Math

I have a question Me and a friend are doing our math homework and ran into a conflict What would be the product of 8-1x0+2/2 I say it would be 5 and my friend here says it would be 1 I did 1x0=0 8+2=10 10/2=5 Thanks
70. ## math

If the word,"if," in math mean multiply and,"is," means equal, what does the word,"was'" mean??? EX: Four times a number was 22 greater than twice the number.
71. ## math, science

Ecology, math and geography are _______. you need to find out what they have in common. ecology, mathe and geography are related
72. ## Re: Physics/Math

Calculate the ratio of the drag force on a passenger jet flying with a speed of 750 km/h at an altitude of 10 km to the drag force on a prop-driven transport flying at one-fifth the speed and half the altitude of the jet. At 10 km the density of air is
73. ## Math

Which survey question is biased? Which is your favorite, pizza or spaghetti? Which subject is your favorite, math, which is easy, or English, which is difficult? ••• Who do you live with: both parents, mother only, father only, or another guardian?
74. ## statstics

construct a 90 confidence interval for the population mean ÃŽ¼. assume the population has a normal distribution. A sample if 15 randomly selected math majors has a grade point average of 2.86 with a standard deviation od 0.78. Round to the nearest
75. ## math!

hi im lauren and i have a big math test tomorrow(7th grade) and i need 2 know wht interval means. And i need the expalnation 2 be so simple that a little kid can understand it. lol. Can someone answer like in the next 10 mins plz! thx!! hurry peeps!!lol
76. ## geography

Find the surface area of the cylinder in terms of pie. 14 cm diameter and 18 cm for the height. π = the number pi (3.1416...) r = radius is not the correct way to do this problem any help would be great. answer are 350cm^2 i think this is correct however
77. ## 5th math

what is the least common multiple (LCM)for 15 and 45? There are 16 girls in a class of 36 student. which expression could be used to determine the number of boys (b) in the class? please! help i think this too hard for 5th grade math. this suppose to be
78. ## math

Can someone check my math homework? I have to set up an equation... my math teacher said that I didn't show how I set up the equation. can someone show me how to do that please? My work is under the question. 7. Anne is seven years younger than her
79. ## math

Can someone check my math homework? I have to set up an equation... my math teacher said that I didn't show how I set up the equation. can someone show me how to do that please? My work is under the question. 7. Anne is seven years younger than her
80. ## math

The final math grades for all 6th graders were A: 125, B: 200, C: 350, D: 95, and F: 25. Make a bar graph to display this data. In the box below, write a description of your bar graph.

If a * b = a - 3b and a # b = 2a + 3b, evaluate the expression (4 * 3) # 5. If y # y = 2x + 3y and x * y = 5x + 4y, evaluate the expression 2 # (4 * 3). Please help! Try to explain how I should solve these - don't just give me the answer. These problems
82. ## math

every row and column contains the same numbers and the same math signs, but they are arranged in a different order each time. can you find the correct order to arrive at the finals totals shown. only using 4 8 3 5 and * + - to make 31 15 20 21 9 17 11 27
83. ## Career Plans

What are some career plans to do with science? I really enjoy chemistry and geology. What are some career plans to do with English? Socials? I like math, but I don't like pre-calculus, I can do some bits of algebra, what does a civil engineer need?
84. ## math-algebra

Find three different ordered pairs that are solutions of the question x=2 and you have to use -1,0,1 for thje subsitut of y or x i don't know.im so confused please help i don't know the ansrer math is hard I can see why you are confused-- so am I. If x =

I don't understand the topic we're learning in math. /: Provide an explanation, steps on how you figured the answer out, and of course, the answer. Tell whether the table represents an exponential function. If so, write a rule for the function. x: -2, -1,

I'm so lost on this math Hw it's over factoring variables and I don't get it. Like my teach said that we are supposed to have the number and letter in front of everything. For example: -14x^2-7x+21 For factoring I got 7x(-2x-1+3) Because my teacher told me
87. ## Probability

Darby guesses the answers to six questions on the math portion of her college entrance exam. Each question is a true or false question. What is the approximate probability that at least 4 of her answers are correct? A. 0.23 B. 0.34 C. 0.66 D. 0.78
88. ## Cout Iblis Can You Help Me W/The ?'s

They are title:Math for Trish To Help Me With We are not going to allow anyone to do your homework for you, or tests. That is cheating, pure and simple. Sorry. I don't have time anymore today,. I'll take a look tomorrow. As Bob said, we don't do the

My daughter is doing 5th grade math division. Her teacher has shown her a different way to divide these days. I know the answer I get (the old way), but can you tell me how you get the answer for 233 divided by 29. They have her "Xing" out the last 3 in
90. ## algebra

I have a math worksheet and it is SO confusing. can anyone help. the question on the worksheet is IN MUSIC WHAT DOES "ALLEGRO" MEAN? it's page 190. PPPPLLLLLLLLZZZZZZZZ. like right now i need the answer. i looked it up on google what allegro means and it
91. ## Algebra; HELP IMMEDIATELY

I don't understand the topic we're learning in math. /: Provide an explanation, steps on how you figured the answer out, and of course, the answer. Tell whether the abe represents an exponential function. If so, write a rule for the function. x: -2, -1, 0,
92. ## English

A: How's your new math teacher? B: He is a nice and funny teacher. A: Really? That's great. B: Yes, I like him. A: Does he give you homework? B: Yes, he gives a lot of homework to us, so I have no time to play. A: That's too bad. (Would you check the
93. ## help

Tell wheher each represents a funtion. Explain minutes= 60 times hours A math function doing something to a value like adding, subtracting, multiplying or dividing, as you have in your formula: minutes = 60 * hours. I hope this helps. Thanks for asking.
94. ## mathematics

just wanted to make sure this answer is correct. I am looking for the decimal place of the number 4 in this number 2.84905 Isn't the 4 in the thousanths place? My brain is fried from this math final. Thanks for your help, it is greatly appreciated.
95. ## math

every row and column contains the same numbers and the same math signs, but they are arranged in a different order each time. can you find the correct order to arrive at the finals totals shown. only using 4 8 3 5 and * + - to make 31 15 20 21 9 17 11 27
96. ## math

every row and column contains the same numbers and the same math signs, but they are arranged in a different order each time. can you find the correct order to arrive at the finals totals shown. only using 4 8 3 5 and * + - to make 31 15 20 21 9 17 11 27
97. ## math

every row and column contains the same numbers and the same math signs, but they are arranged in a different order each time. can you find the correct order to arrive at the finals totals shown. only using 4 8 3 5 and * + - to make 31 15 20 21 9 17 11 27
98. ## Math

The final math grades for all 6th graders were A: 125, B: 200, C: 350, D: 95, and F: 25. Make a bar graph to display this data. In the box below, write a description of your bar graph.