Answer:
Step-by-step explanation:
For each right-angled triangle:
Because
we have an equation
multiplying both sides by x, we get
dividing both sides by 0.4 and
using calculator, we divide 12 by 0.4
and finally x=30
Answer:
questions 2 answe is x+3less than equal to 13
9. answer is 12
10. answer is 3.5
11. answer is 23