Una escalera de 3m de longitud se apoya contra una pared vertical. Si la parte inferior resbala alejándose de la pared con una velocidad de 1m/sg, calcule la rapidez con la que se desliza hacia abajo de si extremo superior hacia el piso.

Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.