Elementary School Math: Single digit division

This is a day to day problem which can be taken mathematically: There are 23 school buses each carrying 41 kids and teachers on a picnic to the Niagara Falls. How many total number of people are going in this trip? Mathematically, the problem is 41 X 23 = ?

Handling Data- Reactions Times

Context:It would normally follow on from work on setting up and testing hypotheses, and statistical analysis. Question: Grandad told Simon that some people have slower reactions times than other people. Simon decided to test the reaction times of some of his friends. Write down a hypothesis for him to test. Also design ...continues

Fractions differences in algebra

Context:It would normally follow on from work on sequences and fractions. Question: Ruth was investigating fraction differences. She wrote down this sequence of fractions: 1/1, 1/2, 1/3, 1/4, 1,5 1,6 .. .. Then she worked out the difference between the consecutive fractions: 1/2, 1/6, 1/12, 1/20, 1/30, .. .. She Then worked o ...continues

Suresh is comparing magazines and newspapers.

Context: It would normally follow on from work on setting up and testing hypotheses, and statistical analysis. Question: Suresh is comparing magazines and newspapers. He chooses a passage from one newspaper and one magazine. They each contain 100 words and he counts the lengths of all the words. now this is what you have ...continues

Math question

Context: It would normally follow on from work on setting up and testing hypotheses, and statistical analysis. Question: Suresh is comparing magazines and newspapers. He chooses a passage from one newspaper and one magazine. They each contain 100 words and he counts the lengths of all the words. 1. Write a hypothesis about the l ...continues

Linear Algebra -- Parseval's formula

Orthogonality questions (see attached)

Linear Algebra -- Eigenvalues and Eigenvectors

find the eigenvalues in the matrix

Square roots

square root of 100 plus the square root of 200 plus the square root of 300 multiplied by the square root of 400 equals ?

Solving exponential equations.

Solve for t: 1.) 7*(4^t)=9 2.) 2^(t+1)=5^(t-3)

Calculations regarding the inverse of cos.

Inverse cos of (square root of 2/2)