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	Vectors		2019-09-06
		Kayla pose la question : Hi! Due to time constraint issues, we skipped vectors in Pre-Calc last year. However, I'm attempting to complete my AP Physics summer homework and there are 3 problems with vectors. As I explained, I have no idea even where to begin and as such I need some help. Problem 1: A plane flying at 90° at 45 m/s is blown toward 0° at 62 m/s by a strong wind. Find the plane's resultant velocity. I have tried all sorts of online calculators but none are providing me with a formula I can use to solve this problem on my own. Problem 2: If you walk 367 m North and 785 m West what is your total displacement from your original location? What is the problem asking for when it says displacement? Problem 3: A plane travels on a heading of 127.0° at a velocity of 25 km/hr. What are the horizontal and vertical components of the plane's velocity? As you know already, I have never done vectors so I don't know what horizontal and vertical components of velocity are. Thank you So Much for your help!! I am struggling!! - Kayla Penny Nom lui répond.
	Converting decimals to common fractions		2018-05-08
		Ruth pose la question : what does the 0 represent in .018 versus the decimal .180? As in, changing these to fractions? Thank you. Penny Nom lui répond.
	A five digit number		2016-10-12
		Massa pose la question : Explain why any four digit number is less than any five digit number? Penny Nom lui répond.
	A place value drawing		2016-02-24
		Kristin pose la question : Make a place value drawing of a number that has double the number of tens as ones and three times the number of thousands as hundreds write the number. Penny Nom lui répond.
	A barge of triangular cross section		2014-08-18
		tushar pose la question : a barge of triangular cross section is 20m long 12 m wide and 6m deep.its floats in SW at a draft if 4m find its displacement Penny Nom lui répond.
	A six digit number		2014-06-30
		anupam pose la question : hi, my daughter asking a solution for the below question, kindly help. Write the smallest 6 digit number wit digits ( 2,4,3,0,5,7). plz this is an urgent requirement. regards, anupam Penny Nom lui répond.
	An arrow is shot straight up in the air		2012-12-06
		heather pose la question : The skywalk is a glass bottomed platform that hangs over the edge of the Grand Canyon and is suspended 4000 feet above the floor of the canyon. If a tourist shot an arrow straight up in the air from the observation platform, the arrow's height could be modeled by H(t) =-16^2 + 240 + 4000 where H(t) is the height of the arrow above the canyon floor in feet t seconds after being shot, t>0. (a) Find H(5) and explain its meaning Penny Nom lui répond.
	Transposition error		2012-12-03
		Carol pose la question : What is the correct term for when a child writes 61 instead of 16, or 83 for 38--when they switch the place values of a number? Chris Fisher lui répond.
	Expanded exponential form?		2012-06-12
		Ramon pose la question : express the numbers 990 614 000 005 in expanded exponential form. Harley Weston lui répond.
	Displacement		2011-12-17
		faisal pose la question : a helicopter takes off and travels 300 km due north then returns to its landing field. what is its displacement? Penny Nom lui répond.
	Rounding		2011-12-14
		seth pose la question : A decimal number rounded changed to 23.7 after it was rounded. Give a decimal number that is less than 23.7 and another that is greater than 23.7 that each round to 23.7. Explain to what place each number was rounded. Penny Nom lui répond.
	Expanded form		2011-10-12
		Chris pose la question : Write this number in expanded form 4 326 180 501 Thanks!!! Penny Nom lui répond.
	Place value		2011-09-20
		Ivana pose la question : the digit in the ones place is a hand with out a thumb(4) 2) the digit in the thousands place is 2 less than the digit in the one's place. (4-2= 3) the digit in the ten's place is the sum of 2 and 6 (2+6= 4) the digit in the hundreds place is what you get when you get when you subtract 5 from the digit in the ten's place (ten's-5= what is the number? Penny Nom lui répond.
	What does 163,100,000 look written in words?		2011-03-22
		Alicia pose la question : What does 163,100,000 look written in words? Penny Nom lui répond.
	Math in the workplace: nursing		2010-05-24
		Taylor pose la question : How is math used in the workplace - Nurse Anesthetist? Penny Nom lui répond.
	What number has 5 hundreds and 12 tens?		2008-10-21
		kellee pose la question : What number has 5 hundreds and 12 tens? I would say the number is 620. But, my daughter thinks that is wrong. Harley Weston lui répond.
	Hundreds, tens, and units digits		2008-09-05
		Cynthia pose la question : write an expression for the value of a three-digit number whos hundreds, tens, and units digits are x, y, and z, respectively Penny Nom lui répond.
	3-D Vectors		2008-07-22
		jenina pose la question : 1. The summit of a mountain, 2450m above base camp, is measured on a map to be 4580m horizontally from the camp in a direction 32.4º west of north. What are the components of the displacement vector from camp to summit? What is its magnitude? Choose the x axis east, y axis north and z axis up. Janice Cotcher lui répond.
	Units digit		2008-07-02
		seemachauhan pose la question : How to find unit digit of various numbers and what are unit digits? Penny Nom lui répond.
	The volume of a stone		2008-04-17
		sara pose la question : a rectangular tank 30 cm long and 20 cm wide is filled with water to a depth of 8 cm. When a stone was put in, the water level rose to 11 cm. Find the volume of the stone. (Assume that the stone is completely under water.) Penny Nom lui répond.
	Place value		2007-10-27
		eric pose la question : True or False: In the number 378, there are 3 hundreds, 7 tens, and 8 ones. Penny Nom lui répond.
	The largest number you can add ...		2007-10-26
		Dryden pose la question : What is meant by asking what is the greatest number you can add to that number without having to regroup in any place? Penny Nom lui répond.
	I have a 6 digits		2007-09-28
		Kim pose la question : I have a 6 digits. My hundred-thousands digit is 1 less that my ones digit, 8 more than my thousands digit, twice my tens digit, and 4 times my hundreds digit. My ten-thousands digit is 0. What number am I? Stephen La Rocque lui répond.
	Tens and ones		2007-09-16
		julia pose la question : My son has come home with a math question "what i know about 10s and 1s" we're totally stumped any information you can provide would be greatly appreciated Harley Weston lui répond.
	A place value chart		2007-09-12
		glenwood pose la question : draw a million chart then place the following numbers in the proper place. one hundred and nine million, seven hundred and twenty-three Penny Nom lui répond.
	What number am I?		2007-08-11
		Belinda pose la question : What number am I? My millions digit is 4. My billions digit is two time = my millions digit. My hundred thousands digit is two more than my = millions digit and three more than my ones digit. My ten millions digit = is one less than my ones digit. My other digits are zero. Write my = short word form. Penny Nom lui répond.
	Is zero a number or a place holder?		2007-04-09
		Chris pose la question : Is zero a number or a place holder? Penny Nom lui répond.
	Throwing a stone downwards		2007-01-12
		Momo pose la question : a stone is thrown vertically downward with an initial speed of 14m/s from a height of 65 m above the ground. A) how far does the stone travel in the first 2.0 s? B) what is the stone velocity just before it hits the ground? Stephen La Rocque lui répond.
	Place value, coins and money		2006-12-12
		Emily pose la question : I was wondering what the best way would be to teach place value using coins and money. I have used base ten blocks already and am looking for a way to integrate money, perhaps on a place value chart and perhaps using decimals. Diane Hanson lui répond.
	Place value		2006-10-12
		Sue pose la question : We have extended the place value chart out 14 places and want to know what comes after hundred trillions? Stephen La Rocque lui répond.
	Whats the value of the digit 7 in 756,809?		2005-09-14
		Anastasia pose la question : Whats the value of the digit 7 in 756,809? Penny Nom lui répond.
	Four and five digit numbers		2004-09-21
		Josy pose la question : The question I have now in front of me is....Is a 4-digit number always less than a 5-digit number? Hi Josy, The digits in order are 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9. Thus the largest four digit number is 9999. The smallet 5 digit number is 10000. Penny Go to Math Central Penny Nom lui répond.
	Forty balls are placed in a bag		2004-06-19
		Sheila pose la question : Forty balls numbered 1-10 are placed in a bag and four are drawn at random. What is the probability that the first ball drawn is between 1-10 (inclusive) the second is between 11-20, the third is between 21-30 and the last is between 31-40? Penny Nom lui répond.
	Place Value		2004-04-25
		Santosh pose la question : Q. Write the Place value of the digits in the following numerals. 1. 5 in 54 2. 3 in 63 Penny Nom lui répond.
	The digits in 349		2003-09-12
		Franik pose la question : in the number 349, which number has the least value, and why? Penny Nom lui répond.
	Round to hundredths		2002-11-19
		Brittany pose la question : Can u tell me how to do a problem like this: 35 divded by 4.8= Round to hundreths. Penny Nom lui répond.
	Rounding 27.27		2002-11-03
		A parent pose la question : If you have a problem 27.27 and you need to round to the first 7 the answer would be 27 Would 27.0 be acceptable as well or is it completely wrong. Penny Nom lui répond.
	The number of decimal places in 1 over a power of 2		2002-09-12
		Allan pose la question : Does anyone notice that the maximum number of decimal place of the number 2 dividing 1 and its increment (4, 8, 16...etc) is the same as the power of number 2? eg. 22=4, thus the max number of decimal of 1/4=0.25 which is 2 decimal place and 2 is the number of power of 2 take 64 as example: 26=64, and take 1/64=0.015625 which has 6 decimal place (and is the power 6) Is there such a law in math? If yes, can you tell me what it is? Or is this my discovery? Paul Betts lui répond.
	What is a group of three numbers called in a large number?		2002-01-15
		Laurie pose la question : What is a group of three numbers called in a large number? My son has this question on his 4th grade worksheet. I've taught middle school math for 7 years and nver heard of it. Paul Betts lui répond.
	Scoring a college placement test		2001-09-26
		Carmen pose la question : A college placement test consist of 75 multiple-choice questions, each having 5 possible answers. The exam is scored by subtracting from the number of correct answers one-quarter of a point for each question answered incorrectly. If a person answers every question on the exam and scored 45, how many questions were answered wrong? Penny Nom lui répond.
	Place value chart		2001-01-11
		Charles pose la question : Can you send me a pictorial example of a place value chart? Harley Weston lui répond.
	How many tens are in 400?		2000-11-07
		A student pose la question : How many tens are in 400? Penny Nom lui répond.
	Grade 4 curriculum		1999-02-09
		John pose la question : My daughter is in grade 4 and her math teacher has asked her to write out the number 1 to 10,000. She is currently at 4567 and is sick of it. When I complained that this was not a usefull exercise she said that the Ministry of Education curriculum requires this and gave a photocopy of the page. It states: "read and write whole number to 10,000 in standard, expanded, and written forms (eg., 9367=9000+300+60+7 = nine thousand three hundred sixty-seven). Has the teacher interpreted this the wrong way? Thanks John PS. Do you have a web address for Ontario Math and Science Teachers organization? Jack LeSage lui répond.
	Place Value		1999-01-05
		Reg pose la question : I work in a Section 27 classroom with various grades. I am looking for assistance on how to deliver a lesson on place value:decimal numbers keeping in mind that they need to see it (visual) to comprehend. I am looking for grade 4-6 level. Jack LeSage lui répond.
	Billions and more!		1997-09-15
		Mahabir B. Gupta pose la question : I would like to know how you americans write the number 1 billion. Do you say "One thousand million"..can you answer by giving me examples? 1,000,000----> 1 million 1,000,000,000---->1 billion Why is it that in spanish it is different? Penny Nom lui répond.
	Thousands, millions, billions and trillions		1996-08-22
		Blaine pose la question : What are the names of the periods in groups of numbers like 123,456,789. I need to know the names of them for school. I already know the first ones: units thousands millions billions trillions. Penny Nom and Diane Hanson lui répond.

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