The vertices of a right triangle are (–3, 5), (4, –1), and (4, y).
what is the value of y?

What are “like terms”? why can we only add like terms?

Long division setup showing an incomplete calculation. 12 is in the divisor, 6839 is in the dividend, and 5 hundreds and 6 tens is written in the quotient. 6000 is subtracted from 6839 to give 839. an unknown value represented by a box is being subtracted from 839. what number should be placed in the box to complete the division calculation?

How would you find the height of points on the circle? the topic is trigonometry.