Answer:
f=-15/4
Step-by-step explanation:
Answer: your answers are correct. I inserted an image of the answers.
The answer would be $21.5 less than the original.
Answer: 5
Step-by-step explanation:
When the number after the point is 5 and above round up
Answer:
x = 40
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
x² + 30² = 50²
x² + 900 = 2500 ( subtract 900 from both sides )
x² = 1600 ( take the square root of both sides )
x =
= 40