 |
|
|
|
|
|
|
|
|
Ordering fractions |
2000-01-05 |
|
A seventh grader pose la question :
I am a middle school student (7th grade) and I was wondering if you could help me with ordering fractions from least to greatest the fractions are 31/12, 2 5/6 and 2 3/4.
Walter Whiteley lui répond. |
|
|
|
|
|
|
A probability experiment |
2000-01-05 |
|
Vanessa pose la question :
Duels in the town of Discretion are rarely fatal. There, each contestant comes at a random moment between 5 a.m. and 6 a.m. on the appointed day and leaves exactly 5 minutes later, honor served, unless his opponent arrives within the time interval and then they fight. What fraction of duels lead to violence? There must be a minimum number of 100 trials and things like graphing calculator, dice, spinners, and whatever are allowed.
Harley Weston lui répond. |
|
|
|
|
|
|
Why study calculus? |
2000-01-05 |
|
Trlpal pose la question :
I am a high school senior enrolled in a pre-calculus class. Could you tell me what the benefits of taking calculus are and why it would be important to take the class.
Walter Whiteley and Harley Weston lui répond. |
|
|
|
|
|
|
Factoring ^6 |
2000-01-03 |
|
Athena pose la question :
my name is Athena and I have a question on factoring: how would you figure this out: (x6-y6) and (x6+y6)
Penny Nom lui répond. |
|
|
|
|
|
|
Y-intercept |
2000-01-03 |
|
Kayla Boylan pose la question :
How do you use and find the y-intercept?
Penny Nom lui répond. |
|
|
|
|
|
|
zero |
2000-01-01 |
|
Jason pose la question :
What civilization first used zero?
Penny Nom lui répond. |
|
|
|
|
|
|
Derive the quadratic equation |
2000-01-01 |
|
Thuy pose la question :
My teacher asked us this question in which i can't understand when she asked to derive the quadratic equation. What does this mean?
Penny Nom lui répond. |
|
|
|
|
|
|
Solving a cubic equation |
1999-12-30 |
|
Natalia pose la question :
How can I solve:
2 x3 - x2 + x - 2 = 0 ???
Penny Nom lui répond. |
|
|
|
|
|
|
Absolute value |
1999-12-29 |
|
Alex Waller pose la question :
What are some practical applications for absolute value?
Harley Weston lui répond. |
|
|
|
|
|
|
Period |
1999-12-28 |
|
Mahdawi pose la question :
I have attached a diagram of the graph, and I need to find out its period. I really don't understand how to do so, please help!
Harley Weston lui répond. |
|
|
|
|
|
|
Parachute Problem |
1999-12-28 |
|
Stephanie Zinsli pose la question :
A parachutist jumps from an airplane and lands in a square field that is 2 kilometers on each side. In each corner of the field there is a large tree. The parachutist's ropes will get tangled in the tree if she lands within 1/11 kilometer of its trunk. What is the probability that she will land in the field without getting caught in a tree?
Penny Nom lui répond. |
|
|
|
|
|
|
Three algebra problems |
1999-12-28 |
|
Stephanie Branton pose la question :
- If P represents the product of all prime numbers less than 1000, what is the value of the unit's digit of P?
- Do any real numbers a and b exist such that: ln(a+b)=ln a + ln b? if so, what are they?
- Define a function by: f(x)=1/1-x where x is not equal to 0,1. what is f(f(f(a)))?
Harley Weston lui répond. |
|
|
|
|
|
|
Graph of a sine function |
1999-12-23 |
|
Pierre pose la question :
Given;
amplitute:1
period: 540
Phase shift: 60 degree,right I am ask to right the equation: sin 2/3 (value -60degree) When I am asked to graph the equation, the period is mixing me up.
Harley Weston lui répond. |
|
|
|
|
|
|
Climbing stairs |
1999-12-22 |
|
Harman Chaudhry pose la question :
Paul, Michelle and Michael all climb up 54 steps. Paul climbs the steps one at a time i.e. 1, 2, 3, etc. Michelle Climbs the stairs 2 at a time i.e. 2, 4, 6, etc. Michael climbs the stairs 3 at a time i.e. 3, 6, 9, etc. How many steps are used by exactly two people?
Penny Nom lui répond. |
|
|
|
|
|
|
Specific heat |
1999-12-22 |
|
Irena pose la question :
In transferring 1260J of heat to water, the temperature of 0.20 kg of mercury falls 50 K. Calculate the specific heat capacity of mercury using the equation C= Q/(m)(delta t) i know that Q= -1260J because it's loosing heat and m= 0.2kg and since i have to use 'C i have to convert Kelvins into Celsius (i also know that 'C has to be negative since it looses heat)
.
.
.
Harley Weston lui répond. |
|
|
