77 - (-145) = 77 + 145 = 222
Answer:
2/3
Step-by-step explanation:
The slope is rise over run so all you have to do is make a triangle from the two points, count how many go up, which is 2, and how many go to the side, which is 3. The rise (2) goes on the top of the fraction, the run (3) goes on the bottom and then that's your answer.
Answer:
y = 10
Step-by-step explanation:
Given
10 - y = y - 10 ( subtract y from both sides )
10 - 2y = - 10 ( subtract 10 from both sides )
- 2y = - 20 ( divide both sides by - 2 )
y = 10
Answer:
use your compass to copy the length to a new line
Step-by-step explanation:
To make a line segment that has the same length as another, set your compass width to the length of the one you want to copy, and use that to mark the length on the line where you want your copy.
Use a straightedge to draw a line longer than JK.
- Label a point on that line A.
- Set your compass to the length JK.
- Mark that length from point A on the line you drew. Label the mark D.
AD is congruent to JK.
21a: 4
21b: 7
21c: 10
22. 3 to the 4th power