Thursday

March 5, 2015

March 5, 2015

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**

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*