What does DoS mean in math

A 13 foot ladder leans against a 12 foot wall. The distance from the base of the leader to the base of the wall is 5 feet. Based on this information, which trigonometric ratio has the value 12/5?

Solve 3 (x + 2) > x. x < - 1 x > - 1 x x

What is the equation of this graphed line? (0,7) (8,-2) Enter your answer in the slope-intercept form in the box.

These are lines that intersect to form right angles. Example: The formed by x-axis and the y-axis, a line with a slope of 3 and another line with a slope of - 1/3, the sides of a rectangle, and the sides of a square form this kind of line or segment.

A fair sold a total of 3,300 tickets on Friday and Saturday. It sold 100 more on Friday than on Saturday. How many tickets did the fair sell on Friday? Explain.

From a group of 8 people, including George and Nina, 3 people are to be selected at random to work on a certain project. What is the probability that the 3 people selected will include George but not Nina? A) 5/56 B) 9/56 C) 15/56 D) 21/56 E) 25/56

5 (2x+6) - 17+0+0+0+0+0+0+0

What type of number is 3 - 771? Complex number Question in Khan Academy

2T+2T-8+3+5k there is a 2 as an exponent on the 5k but I can't wright it so FYI

show answer using graph y=2x - 3 y=3x + 2