Answer:
-8 +12i
Step-by-step explanation:
(1 + 9i)-(9 - 3i)
Distribute the minus sign
(1 + 9i)-9 + 3i
Combine like terms
1-9 +9i +3i
-8 +12i
If the price of the bike was $200 and a went down to 165 that means that the bike price went down $35 which means percentage decrease by 17.5%
Answer:
2,900
Step-by-step explanation:
The height of the balloon above the ground is about 7.07 feet.
<h3>
What is trigonometric ratio</h3>
Trigonometric ratio is used to show the relationship between the sides and angles of a right angled triangle.
Let h represent the height of the balloon from the ground, hence:
sin(45) = h/10
h = 7.07 feet
The height of the balloon above the ground is about 7.07 feet.
Find out more on trigonometric ratio at: brainly.com/question/1201366
