3. Fineness of cement has a direct effect on the rate at which cements hydrate. Higher fineness cements (exceeding \( 400 \mathrm{~m}^{2} / \mathrm{kg} \), Blaine) tend to decrease early strength development and increase bleeding - increase early strength development and increase bleeding - increase early strength development and reduce bleeding

2) La suma de los cuadrados de dos números naturales consecutivos es 181 . Halla dichos números. \( x^{2}+(\square)^{2}=181 \rightarrow \mathrm{O} x^{2}+\mathrm{O} x-\square=0 \rightarrow x^{2}+x-\square=0 \rightarrow(x+\square)(x-0)=0 \rightarrow \rightarrow_{x=0}^{x=\square} \) Respuesta/ Los números sonOy \( \square \)

Simplify the expression and write the answer with positive exponents \( \frac{\left(3 g^{4} c^{-2}\right)^{2}}{\left(4 g^{-4} c^{2}\right)^{5}} \)

4. The dog is extremely__ and loves to play. a) friendly b) friend c) friendship

[Condiciones económicas actuales del país]

Simplify the expressions: a. \( \left(4 t^{4}\right)^{7}=\square \) b. \( \left(x^{6} y^{8}\right)^{4}=\square \) c. \( \left(-4 z^{6}\right)^{3}=\square \)