Tomas

Most popular questions and responses by Tomas
1. Physics

M, a solid cylinder (M=2.35 kg, R=0.111 m) pivots on a thin, fixed, frictionless bearing. A string wrapped around the cylinder pulls downward with a force F which equals the weight of a 0.750 kg mass, i.e., F = 7.357 N. 1)Calculate the angular acceleration

asked on February 11, 2014
2. math help

The total saving in purchasing 30 13-cent lollipops for a class party at a reduced rate of \$1.38 per dozen is: (A) \$0.35 (B) \$0.38 (C) \$0.40 (D) \$0.45 (E) \$0.50 (F) \$0.55 not just answer

asked on August 8, 2013
3. math

A gear with 60 teeth is meshed to a gear with 40 teeth. If the larger gear revolves at 20 revolutions per minute, how many revolutions does the smaller gear make in a minute? not just an answer please (A)13 1/3 (B)3 (C)300 (D)120 (E)30

asked on August 14, 2013
4. math help

Find the average of the first 14 positive odd integers.

asked on August 14, 2013
5. Physics

Stephanie serves a volleyball from a height of 0.78 m and gives it a initial velocity of +6.6 m/s straight up. (1): How high will the volleyball go? The acceleration of gravity is 9.81 m/s^2. (2): How long will it take the ball to reach its maximum height?

asked on September 15, 2014
6. math help

A gear with 20 teeth revolving at 200 revolutions per minute is meshed with a second gear turning at 250 revolutions per minute. How many teeth does this gear have ?

asked on August 15, 2013
7. math

Two boys weighing 60 pounds and 80 pounds balance a seesaw. How many feet from the fulcrum must the heavier boy sit if the lighter boy is 8 feet from the fulcrum ?

asked on August 15, 2013
8. matth

A couple plans to save for their child's college education. What principal must be deposited by the parents when their child is born in order to have \$42,000 when the child reaches the age of 18? Assume the money earns 7% interest, compounded quarterly.

asked on December 5, 2018
9. math help

A Certain type of board is sold only in length of multiples of 2 feet from 6 ft to 24 ft. A builder needs a large quantity of this type of board in 5 1/2 foot lengths for minimum waste. The lengths in feet to be ordered should be (A) 6 (B) 12 (C) 16 (D) 18

asked on August 8, 2013
10. math

an isosceles triangle has a vertex at the origin. Determine the area of the largest such triangle that is bound by the function x squared + 6y = 48 and explain why this is infact the maximum area.

asked on March 13, 2011
11. math

There are x students in Mrs. Schwartz's third-grade class. One less than half the students have blue eyes. Six fewer children have green eyes than have blue eyes. The rest of the students have brown eyes. How many students have brown eyes? a. 7 b. 8 c.

asked on November 14, 2013
12. Physics

A thin uniform rod has mass M = 0.5 kg and length L= 0.49 m. It has a pivot at one end and is at rest on a compressed spring as shown in (A). The rod is released from an angle θ1= 55.0o, and moves through its horizontal position at (B) and up to (C) where

asked on February 11, 2014
13. math help

The average of 2P, 3Q, and another number is S. Represent the third number in terms of P,Q,and S. A. S-2P-3Q B. S-2P+3Q C. 3S-2P+3Q D. 3S-2P-3Q E. S+2P-3Q not just answer,please

asked on August 14, 2013
14. Chemistry

Write the cell notation for the reaction below. Show your work. Cu+2(aq) + 2Ag(s) + 2Cl-(aq) --> Cu(s) + 2AgCl(s)

asked on December 1, 2010
15. Physics Multiple choice!!

What is indicated by a smooth, upward curving line on a graph? a.) A linear relationship between x and y b) A inverse relationship betweeen x and y c.) A direct relationship between y and with the square of x d.) No relationship between x and y is

asked on January 7, 2008
16. math

1. What is the greatest common factor of: 2x2x5x7x7 2x5x5x7x7 a. 2x5 b. 2x5x7 c. 2x5x7x7 d. 2x2x5x5x7x7 e. 2x2x2x5x5x5x7x7x7x7 2. What is the least common multiple of: 3x3x5x5x5x7 2x3x5x5x7x7 a. 2 b. 5x5x7 c. 3x3x5x5x5x7 d. 2x3x3x5x5x5x7x7 e.

asked on October 6, 2013
17. math help

If 3ab=6, what is the value of a in terms of b? a. 2 b. 2/b c. 2b^2 d. 2b e. 2b^2 My answer is d, but not sure, anyone can tell me right or wrong? 3ab=6 3a=6b a=2b

asked on November 3, 2013
18. math

4xy(1/2y+3/2x)= ? a. 2x + 6y b. 2x + 12y c. 4x + 6y d. 4x + 12y e. 4x - 12y please answer and explain

asked on September 26, 2013
19. chem

N2H4 is decomposed in a closed container according to this reaction: N2H4 → N2 + 2H2 . If the temperature is constant and the initial pressure of N2H4 is 800mm, what will the pressure in millimeters be after the decomposition to N2 + 2H2? Im having

asked on May 1, 2017
20. math

17. Burger King's Drive-Through: Suppose that cars arrive at Burger King's drive-through at the rate of 20 cars every hour between 12:00 noon and 1:00 PM. A random sample of 40 one-hour time periods between 12:00 noon and 1:00 P.M. is selected and has 22.1

asked on March 10, 2012
21. math

a woman wants to construct a box whose base length is twice the base width. The material to build the top and bottom is \$ 9/m ( squared) and the material to build the sides is \$6m/ ( squared). If the woman wants the box to have a volume of 70 m cubed,

asked on March 13, 2011
22. math

Jennifer is setting the dinner table. She needs to set the table for 4 people, and each person needs to have an identical place setting to the other 3. She has 6 red place mats,6 green place mats, and 8 blue place mats as well as 4 maroon napkins, 3 orange

asked on November 22, 2013
23. maths

How much money is saved by buying an article priced at \$80 with a 40% discount,rather than buying an article marked at \$90 with discounts of 35% and 10% ? A. \$ 4.65 B. \$1.50 C. \$10.50 D. \$3.15 E. \$4.25 not just answer

asked on August 15, 2013
24. math

Which of the following is equivalent to the inequality 7>-3x>-12? a. -7

asked on November 8, 2013
25. maths

A baseball team won 50 of the first 92 games played in a season. If the season consists of 152 games, how many more game must the team win to finish the season winning 62 1/2% of games played?

asked on August 15, 2013
26. math

how many girls are there girls drink 4 cups e/a of water 7 cups are consume by the boys e/a and coach drinks 9 cups of water with a total of 43 cups consume how many girls are in the team

asked on February 15, 2012
27. trig

verifying a solution. 4cos^2 2x-2=0

asked on May 31, 2011
28. math

Scott, Mike, and Holly shared an order of French fries. Scott ate x fries. Mike ate one more than twice the amount of fries that Scott ate. Holly ate 5 fewer fries than Scott did. If there were 6 fries left, how many fries were in the order? a. x-5 b. x c.

asked on November 14, 2013
29. maths

The enrollment of Kennedy High School dropped from 1200 to 1000 over a three-year period. What the percent of decrease during this time? A. 20 B 16 2/3 C. 25 D. 200 E. 2 My answer is 1200-1000=200 200/1200= 1/6 ( some wrong )

asked on August 15, 2013
30. maths

A pulley revolving at 200 revolutions per minute has a diameter of 15 inches. It is belted to a second pulley which revolves at 150 revolutions per minute. Find the diameter, in inches, of the second pulley. not just answer, please

asked on August 15, 2013
31. math

There are fewer than 33 eggs in a basket. If they are counted out 6 at a time, there are 4 left over. If they are counted out 5 at a time, there are 3 left. How many eggs are in the basket? not just an answer

asked on August 14, 2013
32. math help

In an audience of adults and children, 1/6 of the audience are young boys and 1/3 are young girls. What percentage of the audience are children ? (A) 66 2/3 (B) 50 (C) 40 (D) 37 1/2 (E) 33 1/3 not just answer

asked on August 8, 2013
33. math

A television set listed at \$160 is offered at a 12 1/2% discount during a store wide sale. If an additional 3% is allowed on the net price for payment in cash, how much can Josh save by buying this set during the sale for cash ?

asked on August 15, 2013
34. math

A relay with n laps was run by 4 people. The first runner ran half the laps. The second runner ran half the amount of laps the first runner ran. The third runner ran half the amount of laps the second runner ran. The remaining laps were completed by the

asked on November 14, 2013
35. chemistry

calculate final volume required to reach 1% solution when 0.2g of sample is predigested with nitric acid 3mL then after 1day, if 1ml sample from this solution is digested in 10ml solution and diluted in 50 mL distilled water.

asked on March 20, 2011
36. math

Stacey is x years old. Ali is four years less than three times Stacey's age. Carli is 10 years more than twice Ali's age. What is the age difference between Stacey and Carli? a. 2x+6 b. 3x-4 c. 3x+6 d. 5x+2 e. 6x+2 please answer and explain

asked on October 24, 2013
37. math

(3x / x) ( 2x / 6) =

asked on September 27, 2013
38. math help

How many 5-digit odd numbers can be made using the digits 3, 5, 6, 7 and 9, if digits cannot be repeated?

asked on August 13, 2013
39. Math

What is the verbal expression of 2(n-6)?

asked on December 13, 2012
40. help???

i was wondering if this was cheating by having others look and help us with the work?

asked on March 9, 2010
41. Algebra

Maria worked 15 more overtime hours than Jordan one week. If Maria worked 8 overtime hours for every 5 overtime hours that Jordan worked, for how many hours of overtime did each person work?

asked on December 5, 2015
42. math help

If x people working together make a total of y dollars after an hour of work, how much money will z people make if they work 4 hours at the same rate per person ? a. 4xyz b. xy + 4z c. 4yz/x d. 4xy/z e. xyz/4 please answer and explain

asked on October 18, 2013
43. math

(x^2 + x) / x-3x (4) = ? Please answer and explain

asked on September 28, 2013
44. maths

At Baker High, 3 out of every 4 graduates go on to college . Of these 2 out of every 3 graduate from college. What percent of students graduating from Baker High will graduate from college ?

asked on August 15, 2013
45. math help

How many different two- digit numbers can be formed using each of the digits 3, 5, and 7 only once ?

asked on August 13, 2013
46. physics

Two blocks are connected by strings and hung from the ceiling as shown. Tension T1 is 187 N and tension T2 is 78 N. Find the mass of each block.

asked on November 1, 2012
47. chemestry

Which element of group 3A behave as a nonmetal or semimetal?

asked on April 22, 2008
48. Math

What does one more than a multiple of 3 mean?

asked on February 3, 2018
49. math

If m#= m/m^2-m ,what is the value of 6#-[(-5)#]? a. 1/30 b. 1/20 c. 1/4 d. 11/30 e. 9/20 please answer and explain

asked on November 15, 2013
50. math

A bag contains x marbles. Half of the marbles are blue. Four less than the number of blue marbles are red. The remaining marbles are purple. What is the probability of choosing a purple marble at random? a. 2 b. 4 c. 1/2-(x/2-4)/x d. x/2-4 e. x/2 please

asked on October 25, 2013
51. math

If n is an integer, which of the following must be odd? a. 3n-5 b. 3n+4 c. 4n+10 d. 4n-5 e. 5n+7 please answer and explain

asked on October 18, 2013
52. math help

5x+10y +15z-15x+10y-5z+5x-10y-5z / (5x+10y+15z)-(15x+10y-5z)+(5x-10y-5z) a. 1/3 b. 1 c. x+2y+z / x-2y+3z d. x-2y-z / x+2y-3z e. x-2y-z / x+2y+z my answer is none of above, is - 1/3, I didn't know I done it wrong or the question is not correct

asked on September 29, 2013
53. math help

(2np.3r/4r)-(2np-3n)=? a. -1/2np+3n b. -1/2np-3n c. -np/2r+3n d. 1/2np+3n e. 1/2np-3n Please answer and explan

asked on September 29, 2013
54. math

y+y^2+(y+y)^2= ? a. y^2 + 5y b. 2y^2 + y c. 3y^2 + y d. 5y^2 + y e. 4y^4 + y^2 + y please answer and explain

asked on September 26, 2013
55. math help

If m/n = 5/6, then what is 3m + 2n ? (A) 0 (B) 2 (C) 7 (D) 10 (E) it cannot be determined from the information given not just answer

asked on August 8, 2013
56. math help

S is the sum of n integers and A is their average. Which of the following statements is correct? (A) S=A+n (B) S=nA (C) A=nS (D) N=AS (E) None of these

asked on August 7, 2013
57. math

x is a positive integer and x-5 is negative. what is the greatest possibel value of x ?

asked on August 7, 2013
58. Biology

Muscle are made up of muscle functions called____ ____. Its two words... I was thinking myosin and actin , however, not sure if i AM CORRECT.

asked on March 7, 2013
59. math

If x=(2/y^2)+2,what is the value of y in terms of x ? please answer and explain

asked on November 24, 2013
60. math

If #(a,b,c,d)means you subract the absolute value of d from the sum of a,b,and c,then #(2,5,6,-10)+#(1,2,3,7)= a. 2 b. 4 c. 16 d. 22 e. 36 please answer and explain

asked on November 15, 2013
61. math

The notation ##(a,b,c)produces a number that is a less than the product of b and c raised to the a power. When ##(2,5,x)=23, what is the value of x? a. 0 b. 1/2 c. 1 d. 2 e. 5 please answer and explain

asked on November 8, 2013
62. math

The number a is a number less than -3. What is the range of possibl values of 1/a^2 ? a. 1/a^2

asked on November 8, 2013
63. math

(x^2 + x) / x-3x . 4 =

asked on September 27, 2013
64. math

last question 1/2[4x+6x(2+2x)]= ?

asked on September 26, 2013
65. math

The raisins in a bag weigh 9/16 of pound. If the raisins are divided into 6 equal shares, how much will 4 shares weigh? not just the answer

asked on August 14, 2013
66. maths

The price of mangoes ranges from 25 cents to 75 cents a piece. What is the greatest number of mangoes that can be bought with \$3 ?

asked on August 7, 2013
67. maths

x exceeds y by the same amount that 7 exceeds 2. If y is 16, what is the value of x ? (A) 18 (B) 19 (C) 20 (D) 21 (E) 23 [ not only answer ]

asked on August 7, 2013
68. Math

How would you find the value of m in this problem? 4m + 2 = -2 + 4m Well, I brought the 2 over to the right side by subtracting. That left me with 4m = -4 + 4m. Then, I subtracted the 4m from the right and did to the other side to get 0 = -4. Is there no

asked on October 26, 2008
69. math

When y is divided by 6, the remainder is 4. What will be the remainder if y-6 is divided by 3 ? a. 0 b. 1 c. 2 d. 3 e. 4 my answer is b. 1 , but teacher give me the answer is d. 3 , I don't understand, anyone can explain

asked on October 24, 2013
70. math

Which set of numbers has a greatest common factor of 1 ? a. 2,3,and 6 b. 2,200, and 400 c. 3,9,and 27 d. 22,33,and 99 e. 100,500, and 2,500 please answer and explain

asked on October 6, 2013
1. Geography (Ms. Sue)

This is a crazy question cause that’s not make scene hoe

posted on March 7, 2018
2. active & passive voice

he opened the cellophane eagerly

posted on February 14, 2018
3. chemistry

P H2 = 1.23atm P He = 6.163atm P total = 7.39atm

posted on December 5, 2016
4. Algebra

Thank you soo much!

posted on December 5, 2015
5. Chemistry

How do we construct an ICE chart for the concns of the dissociated ions to form a precipitate so we can calculate the final concns of ions in solution?

posted on September 10, 2015
6. Math

It is equivalent

posted on August 31, 2015
7. math

make a tally chart for the number of students in the third,fourth,and fifth grade classes:26,25,27,27,26,28,27

posted on September 9, 2014
8. Math

47.11

posted on April 10, 2014
9. Physics

I really appreciate all your help, if I said anything that made it sounds disrespectful I am deeply apologizing.. Thank you very much for all your help.

posted on February 11, 2014
10. Physics

the first one I know, can you help me with the others?..

posted on February 11, 2014
11. Physics

can you help me without the pic? please?..

posted on February 11, 2014
12. math

I like your answer and explain . step by step, now I understand how to do that.thank you, Jai

posted on November 24, 2013
13. math

a. 9 b. 12 c.102 d. 46,080 e. 138,240

posted on November 22, 2013
14. math help

3ab=6 ab =2 a =2/b answer b

posted on November 3, 2013
15. math

so, the teacher give me the wrong answer? my answer is right

posted on October 24, 2013
16. math

Y is divided by 6, the remainder is 4, so I think 6x6+4=40 , so y=40 40-6/3 =34/3 remainder=1

posted on October 24, 2013
17. math

d, right

posted on October 19, 2013
18. math

I understand so, #2 how to multiple of both numbers

posted on October 6, 2013
19. math

#1 how to divide both mumbers

posted on October 6, 2013
20. math

wrong, the answer is a

posted on October 6, 2013
21. math

The answer is d, right ?

posted on October 6, 2013
22. math help

thank you

posted on September 29, 2013
23. math

(x^2 + x) / 4(x-3x)

posted on September 28, 2013
24. math

(x^2 + x) / x-3x .4=? mean x 4

posted on September 28, 2013
25. math

thank you, Reiny

posted on September 26, 2013
26. math

= 1/2 (4x +12x +12x^2) = 1/2 ( 16x + 12x^2 ) = 8x + 6x^2 is it correct answer ?

posted on September 26, 2013
27. math

thank you, Reiny

posted on September 26, 2013
28. math

yes,4xy(1/(2y) + 3/(2x) ) thank you

posted on September 26, 2013
29. maths

my answer is A

posted on August 15, 2013
30. maths

oh, I get it now, thank you

posted on August 15, 2013