sin(x) = ⁴/₅
sin⁻¹[sin(x)] = sin⁻¹(⁴/₅)
x ≈ 53.13
cos(90 - x) = cos(90)cos(x) + sin(90)sin(x)
cos(90 - 53.13) = cos(90)cos(53.13) + sin(90)sin(53.13)
cos(36.87) = 0cos(53.13) + sin(53.13)
cos(36.87) = sin(53.13)
cos(36.87) = cos(90 - 53.13)
cos(36.87) = cos(36.87)
Answer:
x = 7/2 = 3 1/2
Step-by-step explanation:
2x + 5= 12
Subtract 5 from each side
2x + 5-5= 12-5
2x = 7
Divide each side by 2
2x/2 =7/2
x = 7/2
Changing from an improper fraction to a mixed number
2 goes into 7 3 times with 1 left over
x = 3 1/2
Answer:
4,344 feet
Step-by-step explanation:
Mt. P is 1,086 feet tall. It says that Mt. Q is 4 times that. 1,086 x 4 is 4,344.
Answer:
4.8 h
Step-by-step explanation:
Say the slow hose flows x
The fast hose flows 4x
5x = 24
x = 4.8
