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In Piaget's theory, a circular reaction is a means of building schemes in which infants a. try to imitate the behaviors of others around them b. attempt to act out imaginary activities c. try to repeat chance motor activities again and again d. attempt to form mental representations of the world Clear my choice

A school holds a raffle to raise funds for the matric dance. A total of 250 tickets are sold. There are three prizes to be won: First prize-Motorbike Second prize-Bicycle Third prize-television Michael buys 8 tickets. He could win all three prizes. (a) Draw a tree diagram. (b) Find the probability that Michael wins no prize. (c) Find the probability that Michael wins one prize. (d) Find the probability that Michael wins two prizes. (e) Find the probability that Michael wins all three prizes.

En un último recorrido decidieron visitar la sección de ropa y calzado, Oliver observó 5 playeras, 3 pantalones y 2 pares de tenis que le gustaron. ¿Cuántas formas diferentes de vestir puede formar con estas prendas?

71. Bger: a) \( x=8,75 \cdot 10^{6} \) we \( y \approx 5,4 \cdot 10^{4} ; \) b) \( x \approx 4,3 \cdot 10^{5} \) we \( y \approx 6,95 \cdot 10^{2} \) bolsa, \( x \) we \( y \)-in paýynyñ ýakynlaşan bahasyny tapyñ

\( \frac{x}{a}+\frac{y}{b}=1 \) tenglama to'g'ri chiziqning qanday ko'rinishdagi tenglamasi deyiladi, \( a \) va \( b \) sonlar qanday geometrik ma'noga ega.