七月份:亏损1.2万元;八月份:亏损0.6万元;九月份:盈利4.5万元;十月份:盈利7.9万元;十一月盈利1.1万元;十二月份:盈利0.6万元.
月份 | 七 | 八 | 九 | 十 | 十一 | 十二 |
盈亏金额 (万元) |
②这个服装店在下半年有几个月盈利.一共盈利多少万元?
③这个服装店在下半年有几个月亏损,一共亏损多少万元?

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

