Answer:
90degrees
Step-by-step explanation:
The formula you need to know is that the side opposite of the 30° angle is always half the hypotheneus. For example in question 2 X should be 6 since 3 is opposite side of the angle 30°. In a 45 45 90 triangle, it is important to know that the straight sides are always the same length (since they are the same angle). For example in question 9, v is also 9√2.
When you have two sides, you can figure out the third side with a² + b² = c² since they are all right triangles. Good luck
Answer:
you combine the numbers that are the same and see the signs if it's positive with the negative, it's going to be negative
60,000+3,000+20+9 in standard form is 6.3029 x 10^4.
Hope this helps you!
-Hamilton1757
