Write each of the following in standard form. \( \begin{array}{ll}\text { a }\left(3 \times 10^{4}\right)+\left(4 \times 10^{3}\right) & \text { b }\left(4 \times 10^{6}\right)-\left(3 \times 10^{5}\right) \\ \text { c }\left(2.7 \times 10^{3}\right)+\left(5.6 \times 10^{9}\right) & \text { d }\left(7.1 \times 10^{9}\right)-\left(4.3 \times 10^{0}\right. \\ \text { e }\left(5.8 \times 10^{9}\right)-\left(2.7 \times 10^{3}\right) & \end{array} \)

1.Calcule a média aritmética das seguintes notas de um estudante: 7, 8, 9, 6 e 10. -406

Әділ 7 жылқыны 15 күн жемдеуге 21 қап кебек жұмсайды. Ол 4 айда (120 күн) 20 жылқыны жемдеуге жоспарлап, жем қорын әзірлемек болды. Әділ ең кем дегенде қанша қап кебек әзірлеуі керек?

3. จำนวนนับที่ต่างกันสองจำนวน ซึ่งมี \( 2,3,5 \) เป็นตัวประกอบ จงหาว่าผลต่างของจำนวนนับ ทั้งสองนี้จากชุดที่มีผลคูณน้อยที่สุดตรงกับ

Lake Michigan bevat \( 1.3 \times 10^{15} \) US gallons water. Hoeveel \( \mathrm{dm}^{3} \) is dat?

12\$ Hsin A cooler contains bottles of orange juice, apple juice and grapefruit juice in the ratio of \( 3: 4: 3 \) a There are 960 of orange juice in the couler (a) Calculate the number of bottles of apple juice that are in the cooler