Answer:
-9
Step-by-step explanation:
This is just -3 * 3
=-9
Answer:
42
Step-by-step explanation:
The measure of angle K is 48, the measure of angle m is 90. From there you have 138 degrees. A triangle is 180 degrees. You subtract 138 from 180.

x=8
16-8=8

Use a calculator to find the square root of 8.