Aguy wire is attached to the top of a radio antenna and to a point on horizontal ground that is 40.0 meters from the base of the antenna. if the wire makes an angle of 55° with the ground, approximate the length l of the wire. (round your answer to the nearest tenth.)

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.

a negative exponent is translated as follows:

so, we have