cos(31)=11/x
Solve for x (1 point) Responses 5.7 5.7 21.4 21.4 15.7 15.7 10.1
To solve the equation cos(31) = 11/x for x, we can start by multiplying both sides of the equation by x:
x * cos(31) = 11
Next, we divide both sides of the equation by cos(31):
x = 11 / cos(31)
Using a calculator or trigonometric table, we can find that cos(31) ≈ 0.8480481.
Substituting this value into the equation:
x = 11 / 0.8480481
Calculating:
x ≈ 12.9815
Therefore, the value of x is approximately 12.9815.