5. A circular cricket ground has a diameter of 94 m . A length of rope marks the boundary of the ground. What is the length of this rope to the nearest metre? 6. Draw a circle with an area of \( 26,62 \mathrm{~cm}^{2} \). Use 3,142 to approximate \( \pi \). 7. A farmer planted grass on 4 ha of land. He sells the grass at \( \mathrm{R} 5,20 \) per \( \mathrm{m}^{2} \). Calculate the total amount he can earn if he sells all the grass.

(c) \( \frac{a^{2}+2 a b}{6 a} \)

Reture Notes 3 Outline Types of Relations and Functions Mapping and Function Algebraic Operations on Functions Composition of Functions One-To-One Functions Inverse of a Functions Graphs of Functions and it's Properties Types of Functions and More on Graphs Radical Functions and Equations

8. Qual deve ser o valor de \( x \) para que se tenha \( A=B \) ? \( A=\frac{x}{2}+\frac{2}{5} \) 9. A raiz ou solução da equação \( x-\frac{x}{7}=3 \) é um número racional situado entre dois números inteiros. Quais são esses números inteiros? 10. Calcule a raiz ou solução das equaçōes do \( 1^{2} \) grau com uma incógnita, sendo U \( =Q \). a) \( x-4-\frac{x+4}{3}=0 \) b) \( \frac{4 x}{3}-\frac{3}{2}=\frac{x-3}{3} \)

pestion 2.2 : parallel plate capacitor with a plate area of 0.1 m 2 and a separation of 0.01 m has a ielectric material with a relative permittivity of 5 between its plates. Calculate the apacitance of the capacitor.

10) \( \frac{d\left(x^{9}+5 x^{3}\right)^{6}\left(x^{3}+x+1\right)^{3}}{d x}= \)