商品 | 薯片 | 橙汁 | 巧克力 | 冰激凌 | 牛肉干 | 棒棒糖 |
单价 | 7.88 元/包 | 9.97 元/瓶 | 45.36 元/盒 | 18.99 元/盒 | 37.03 元/包 | 12.75 元/包 |
(2)如果在(1)的基础上再买一份冰激凌,娜娜实际需要支付多少钱?
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2