Thursday
December 18, 2014

Posts by Tomas


Total # Posts: 117

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? Answer in units of s
September 15, 2014

Physics
can you help me without the pic? please?..
February 11, 2014

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 it stops with &#...
February 11, 2014

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.
February 11, 2014

Physics
the first one I know, can you help me with the others?..
February 11, 2014

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 of the cylinder. The...
February 11, 2014

math
I like your answer and explain . step by step, now I understand how to do that.thank you, Jai
November 24, 2013

math
If x=(2/y^2)+2,what is the value of y in terms of x ? please answer and explain
November 24, 2013

math
a. 9 b. 12 c.102 d. 46,080 e. 138,240
November 22, 2013

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 napkins,5 beige ...
November 22, 2013

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
November 15, 2013

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
November 15, 2013

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 fourth runner. How many...
November 14, 2013

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. 2x+`1 d. 4x-4 e. 4x+...
November 14, 2013

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. (x/2)-7 d. x-7 e. x-...
November 14, 2013

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
November 8, 2013

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 <-9 b. 1/a^2 <-3 c. -1/9<1/a^2<1/9 d. 0<1/a^2<1/9 e. 1/9<1/a^2<1/3 please answer and explain
November 8, 2013

math
Which of the following is equivalent to the inequality 7>-3x>-12? a. -7<x<12 b. 7/3 <x<4 c. -7/3<x<4 d. -4<x<-7/3 e. -4<x<7 please answer and explain
November 8, 2013

math help
3ab=6 ab =2 a =2/b answer b
November 3, 2013

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
November 3, 2013

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 answer and explain
October 25, 2013

math
so, the teacher give me the wrong answer? my answer is right
October 24, 2013

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
October 24, 2013

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
October 24, 2013

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
October 24, 2013

math
d, right
October 18, 2013

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
October 18, 2013

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
October 18, 2013

math
wrong, the answer is a
October 6, 2013

math
The answer is d, right ?
October 6, 2013

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
October 6, 2013

math
I understand so, #2 how to multiple of both numbers
October 6, 2013

math
#1 how to divide both mumbers
October 6, 2013

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. 2x3x3x3x5x5x5x5x5x7x7x7 Please ...
October 6, 2013

math help
thank you
September 29, 2013

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
September 29, 2013

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
September 29, 2013

math
(x^2 + x) / 4(x-3x)
September 28, 2013

math
(x^2 + x) / x-3x .4=? mean x 4
September 28, 2013

math
(x^2 + x) / x-3x (4) = ? Please answer and explain
September 28, 2013

math
(x^2 + x) / x-3x . 4 =
September 27, 2013

math
(3x / x) ( 2x / 6) =
September 27, 2013

math
thank you, Reiny
September 26, 2013

math
= 1/2 (4x +12x +12x^2) = 1/2 ( 16x + 12x^2 ) = 8x + 6x^2 is it correct answer ?
September 26, 2013

math
last question 1/2[4x+6x(2+2x)]= ?
September 26, 2013

math
thank you, Reiny
September 26, 2013

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
September 26, 2013

math
yes,4xy(1/(2y) + 3/(2x) ) thank you
September 26, 2013

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
September 26, 2013

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 ?
August 15, 2013

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 ?
August 15, 2013

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 ?
August 15, 2013

maths
my answer is A
August 15, 2013

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
August 15, 2013

maths
oh, I get it now, thank you
August 15, 2013

maths
the decimal answer is 0.1666666
August 15, 2013

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 )
August 15, 2013

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
August 15, 2013

maths
so, the answer is 50?
August 15, 2013

maths
my answer is 1/2 (same ) But the answer they give me is A. 66 2/3 B. 75 C. 50 D. 33 1/3 E. 25
August 15, 2013

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 ?
August 15, 2013

maths
152*0.625=95 95-50=45
August 15, 2013

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?
August 15, 2013

math help
thank you
August 14, 2013

math help
I think 1+3+5+7+9+11+13+15+17+19+21+23+25+27=196 answer:196/14=14 but I am not sure
August 14, 2013

math help
Find the average of the first 14 positive odd integers.
August 14, 2013

math help
thank you, I understand now.
August 14, 2013

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
August 14, 2013

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
August 14, 2013

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
August 14, 2013

math
oh made a mistake it is 44
August 14, 2013

math
3/8
August 14, 2013

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
August 14, 2013

math help
How many different two- digit numbers can be formed using each of the digits 3, 5, and 7 only once ?
August 13, 2013

math help
I know if four digit using the digit 3,5,7,and 9 , the answer is 4*3*2*1=24, but if three digit using the digit 3, 5,7, and 9, the answer is 3*2*1=6?
August 13, 2013

math help
If digits cannot be repeated,how many three digit numbers can be made using the digits 3, 5, 7 and 9 ?
August 13, 2013

math help
if the digits 1,3,5.7,9, what is the different
August 13, 2013

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?
August 13, 2013

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
August 8, 2013

math help
answer B
August 8, 2013

math help
50%
August 8, 2013

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
August 8, 2013

math help
i understand now, thank you
August 8, 2013

math help
i still not understand what is 2 feet from 6 ft to 24 ft.
August 8, 2013

math help
11, 16.5, 22
August 8, 2013

math help
i mean E
August 8, 2013

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 (E) 22 (F) 24 not ...
August 8, 2013

math help
I understand now, thank you
August 8, 2013

math help
why 1.38*2.5 what is 2.5 comefrom
August 8, 2013

math help
d. $0.45
August 8, 2013

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
August 8, 2013

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 ?
August 7, 2013

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 ]
August 7, 2013

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
August 7, 2013

math
x is a positive integer and x-5 is negative. what is the greatest possibel value of x ?
August 7, 2013

Math
47.11
May 8, 2013

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.
March 7, 2013

Math
What is the verbal expression of 2(n-6)?
December 13, 2012

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.
November 1, 2012

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 as the mean ...
March 10, 2012

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