Bài 1. Các câu sau đây, câu nào là mệnh đề, câu nào không phải là mệnh đề ? Nếu là mệnh đề hay cho biết mệnh đề đó đúng hay sai.
a) Không được đi lối này! b) Bây giờ là mấy giờ ?
c) 7 không là số nguyên tố. d)
5
là số vô tỉ.

a

step-by-step explanation:

a

a. turk and mcalister

b. howard, mission, and market

c. yes. since streets end some do not cross yet are not parallel to others. example: mcalister and 5th

step-by-step explanation:

parallel lines are lines which do not intersect ever and look a lot like railroad tracks. turk, mcalister and golden gate are examples of these.

intersect are streets which cross each other and a car on one can reach the other. howard, mission, and market intersect with 6th.

skew lines are lines which neither intersect nor are parallel. these lines exist here because some streets end and never intersect another like mcalister and 5th.

a

b

d

step-by-step explanation:

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3