Answer:
x = 12.2
Step-by-step explanation:
sin theta = opp / hypotenuse
sin 55 = 10 /x
Multiply each side by x
x sin 55 = 10
Divide each side by sin 55
x = 10 / sin 55
x =12.20774589
Rounding to the nearest tenth
x = 12.2
Answer:
3.87 ft = Length of unknown side of the right triangle.
Step-by-step explanation:
Given,
Hypotenuse = 4 ft
Base = 1 ft
Altitude = x
Hypotenuse² = Base² + Altitude²
4² = 1² + x²
4² - 1² = x²
16 - 1 = x²
15 = x²
√15 ft = x
3.87 ft = x
Hope it helps ⚜
Answer:
Step-by-step explanation:
2(x + 15)⁰ + (3x + 20)⁰=180⁰
2x + 30⁰ + 3x + 20⁰=180⁰
2x + 3x + 30⁰ + 20⁰=180⁰
5x + 50⁰ - 50⁰=180⁰-50⁰
5x=130⁰
5x/5=130⁰/5
x=26⁰
Use pythagorean theorum: c^2 = a^2 + b^2, where BC = c, AB = a, AC = b
so b^2 = c^2 - a^2 --> b = SR(c^2 - a^2), where SR means square root of ( )
b = SR(64 - 49) = SR(15) = 3.873 = B) 3.87 units