The lengths of the two shorter sides of a right-angled triangle are \[ 19 \mathrm{~cm} \text { and } 23 \mathrm{~cm} \text {. } \] What is the length of the hypotenuse? Give your answer in centimetres (cmi) to ld.p.

3. For a given increase in the interest rate, investment___ aggregate spending___ and total income A \( \quad \) marks) B Increaseses; increases; increases C Decreases; decreases; decreases D Increases; decreases; decreases

18.1. \( \sqrt[3]{8} \times \sqrt{9} \)

La ecuación de una circunferencia con centro en el origen y radic a. \( x^{2}+y^{2}=16 \) b. \( x^{2}+y^{2}=4 \) c. \( x+y=16 \) d. \( x+y=4 \)

\( (\sqrt{6},-\sqrt{2}) \) une expression.) \( \cos \alpha=\frac{\sqrt{3}}{2} \) (Simplify your answer. Type an exact answer, using radicals as needed. Use integers or fractions for the expression.) tan \( \alpha=\square \) (Simplify your answer. Type an exact answer, using radicals as needed. Use integers or fractions for the expression.)

elepas menyediakan bahan-bahan kelas tuisyen dalam talian, kamu embuka komputer riba untuk menunggu kehadiran kawan-kawan dan ba-tiba, kamu ternampak asap berkepul-kepul keluar melalui tingkap in. Kamu juga terdengar jeritan meminta tolong dari rumah jiran.