Chứng tỏ rằng 2 tia phân giác của 2 góc kề bù vuống góc với nhau

There are 20 children in the cast of a class play and 8 of the children are boys of the boys 4 have a speaking part in the play and of the girls 8 do not have a speaking part in the play if a child from the cast of the place chosen at random what is the probability that the child has a speaking part

Will mark brainliest. when ∆rst is translated 4 units down, what are the apparent coordinates of t’?

Find the product of (4x + 3y)(4x − 3y). 16x2 − 24xy + 9y2 16x2 − 9y2 16x2 + 24xy + 9y2 16x2 + 9y2