A projectile is fired from ground level with an initial speed of \( 550 \mathrm{~m} / \mathrm{sec} \) and an angle of elevation of 30 degrees. Use that the acceleration due to gravity is \( 9.8 \mathrm{~m} / \mathrm{sec}^{2} \). (a) The range of the projectile is (b) The maximum height of the projectile is (c) The speed with which the projectile hits the ground is submit answer Next item

Write the following rational numbers in descending order: \( 1, \frac{2}{6}, 16 \frac{2}{3} \%, 0.667, \frac{4}{8} \)

\( 8.2 \quad 100101010.11101011_{2} \) 9. จงแปลงเลขฐานสิบหกต่อไปนี้ให้เป็นเลขฐาน

Mr Pretorius starts an investment with a deposit of R60 000 . Three years later he deposits another R40 000. Exactly 4 years after he started the investment, he withdraws R15 000 . F the first 3 years, interest is calculated at 5,5\% p.a. compounded semi-annually and thereafte it is calculated at \( 6 \% \) p.a, compounded quarterly. What is the value of the investment exactl 5 years after the first deposit?

2. \( x^{2}+14 x+49= \)

Kiekvieną duotą laipsnị užrašykite laip rodiklis: \( \begin{array}{l}\text { a) lygus 2: }\end{array} 2^{10} ; \quad 3^{8} ; \quad 5^{6} ; \quad 10^{4} ; \quad \) b) ly