Answer:

Step-by-step explanation:
Factor constant terms:

Divide both sides by -2:

Expand trigonometric functions using the fact:

So:

Factor sin(x) and constant terms and multiply both sides by -1:

Split into two equations:

For (1)
Add 1 to both sides and divide both sides by 8:

Take the inverse cosine of both sides:

For (2)
Simply take the inverse sine of both sides

Therefore, the solutions are given by:

Answer:
<u>1035 feet</u>
Step-by-step explanation:
Taking the tan ratio of the angle of elevation :
- tan 49° = h/900
- 1.15 = h/900
- h = 1.15 × 900
- h = <u>1035 feet</u>
Answer:
x=6
Step-by-step explanation:
Step 1: Divide both sides by 17.
17x17=10217
x=6
79,350 cm
Explanation:
115x115=13,225 (this is the area of one side)
13,225x6=79,350(a cube has 6 sides)
2 (6) - 3 (-3) , 12 - -9 , 12 + 9 , 21